姜浩_branch
姜浩 8 months ago
parent 545b2236ba
commit 39f20eb7f3

@ -51,9 +51,9 @@ dependencies {
// "exclude" to listOf("") // "exclude" to listOf("")
// ))) // )))
//修改为如下代码: //修改为如下代码:
implementation(files("D:\\code\\abdroid\\Notesmaster\\httpcomponents-client-4.5.14-bin\\lib\\httpclient-osgi-4.5.14.jar")) implementation(files("D:\\code\\AndroidCode\\Notesmaster\\httpcomponents-client-4.5.14-bin\\lib\\httpclient-osgi-4.5.14.jar"))
implementation(files("D:\\code\\abdroid\\Notesmaster\\httpcomponents-client-4.5.14-bin\\lib\\httpclient-win-4.5.14.jar")) implementation(files("D:\\code\\AndroidCode\\Notesmaster\\httpcomponents-client-4.5.14-bin\\lib\\httpclient-win-4.5.14.jar"))
implementation(files("D:\\code\\abdroid\\Notesmaster\\httpcomponents-client-4.5.14-bin\\lib\\httpcore-4.4.16.jar")) implementation(files("D:\\code\\AndroidCode\\Notesmaster\\httpcomponents-client-4.5.14-bin\\lib\\httpcore-4.4.16.jar"))
testImplementation(libs.junit) testImplementation(libs.junit)
androidTestImplementation(libs.ext.junit) androidTestImplementation(libs.ext.junit)
androidTestImplementation(libs.espresso.core) androidTestImplementation(libs.espresso.core)

@ -7,7 +7,7 @@
* *
* http://www.apache.org/licenses/LICENSE-2.0 * http://www.apache.org/licenses/LICENSE-2.0
* *
* Unless required by applicable law or agreed to in writing, software * Unless required by law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, * distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and * See the License for the specific language governing permissions and
@ -26,48 +26,62 @@ import android.util.Log;
import java.util.HashMap; import java.util.HashMap;
public class Contact { public class Contact {
// 用于缓存联系人信息的 HashMap键为电话号码值为联系人姓名
private static HashMap<String, String> sContactCache; private static HashMap<String, String> sContactCache;
// 日志标签
private static final String TAG = "Contact"; private static final String TAG = "Contact";
// 查询联系人的 SQL 语句,使用 PHONE_NUMBERS_EQUAL 函数进行电话号码匹配,同时限定数据类型为电话,并且关联的 raw_contact_id 在 phone_lookup 表中
private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL(" + Phone.NUMBER private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL(" + Phone.NUMBER
+ ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'" + ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'"
+ " AND " + Data.RAW_CONTACT_ID + " IN " + " AND " + Data.RAW_CONTACT_ID + " IN "
+ "(SELECT raw_contact_id " + "(SELECT raw_contact_id "
+ " FROM phone_lookup" + " FROM phone_lookup"
+ " WHERE min_match = '+')"; + " WHERE min_match = '+')";
// 根据电话号码获取联系人姓名的静态方法
public static String getContact(Context context, String phoneNumber) { public static String getContact(Context context, String phoneNumber) {
if(sContactCache == null) { // 若缓存为空,则创建一个新的 HashMap 用于存储联系人信息
if (sContactCache == null) {
sContactCache = new HashMap<String, String>(); sContactCache = new HashMap<String, String>();
} }
if(sContactCache.containsKey(phoneNumber)) { // 若缓存中已经包含该电话号码,直接从缓存中获取联系人姓名
if (sContactCache.containsKey(phoneNumber)) {
return sContactCache.get(phoneNumber); return sContactCache.get(phoneNumber);
} }
// 替换 CALLER_ID_SELECTION 中的 "+" 为使用 PhoneNumberUtils 生成的最小匹配字符串,以便进行更准确的查询
String selection = CALLER_ID_SELECTION.replace("+", String selection = CALLER_ID_SELECTION.replace("+",
PhoneNumberUtils.toCallerIDMinMatch(phoneNumber)); PhoneNumberUtils.toCallerIDMinMatch(phoneNumber));
// 使用 ContentResolver 查询联系人信息,查询 Data.CONTENT_URI仅获取 DISPLAY_NAME 列,查询条件为 selection查询参数为电话号码
Cursor cursor = context.getContentResolver().query( Cursor cursor = context.getContentResolver().query(
Data.CONTENT_URI, Data.CONTENT_URI,
new String [] { Phone.DISPLAY_NAME }, new String[]{Phone.DISPLAY_NAME},
selection, selection,
new String[] { phoneNumber }, new String[]{phoneNumber},
null); null);
if (cursor != null && cursor.moveToFirst()) { // 若游标不为空且有数据
if (cursor!= null && cursor.moveToFirst()) {
try { try {
// 从游标中获取联系人姓名
String name = cursor.getString(0); String name = cursor.getString(0);
// 将联系人信息存储到缓存中
sContactCache.put(phoneNumber, name); sContactCache.put(phoneNumber, name);
return name; return name;
} catch (IndexOutOfBoundsException e) { } catch (IndexOutOfBoundsException e) {
// 若发生索引越界异常,打印错误日志
Log.e(TAG, " Cursor get string error " + e.toString()); Log.e(TAG, " Cursor get string error " + e.toString());
return null; return null;
} finally { } finally {
// 确保游标关闭,释放资源
cursor.close(); cursor.close();
} }
} else { } else {
// 若未找到匹配的联系人,打印日志
Log.d(TAG, "No contact matched with number:" + phoneNumber); Log.d(TAG, "No contact matched with number:" + phoneNumber);
return null; return null;
} }
} }
} }

@ -7,9 +7,9 @@
* *
* http://www.apache.org/licenses/LICENSE-2.0 * http://www.apache.org/licenses/LICENSE-2.0
* *
* Unless required by applicable law or agreed to in writing, software * Unless required by law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, * distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * WITHOUT WARRANTIES OR Conditions of any kind, either express or implied.
* See the License for the specific language governing permissions and * See the License for the specific language governing permissions and
* limitations under the License. * limitations under the License.
*/ */
@ -17,24 +17,29 @@
package net.micode.notes.data; package net.micode.notes.data;
import android.net.Uri; import android.net.Uri;
public class Notes { public class Notes {
// 定义该数据的授权信息
public static final String AUTHORITY = "micode_notes"; public static final String AUTHORITY = "micode_notes";
// 日志标签
public static final String TAG = "Notes"; public static final String TAG = "Notes";
public static final int TYPE_NOTE = 0; // 定义不同类型的笔记
public static final int TYPE_FOLDER = 1; public static final int TYPE_NOTE = 0;
public static final int TYPE_SYSTEM = 2; public static final int TYPE_FOLDER = 1;
public static final int TYPE_SYSTEM = 2;
/** /**
* Following IDs are system folders' identifiers *
* {@link Notes#ID_ROOT_FOLDER } is default folder * {@link Notes#ID_ROOT_FOLDER }
* {@link Notes#ID_TEMPARAY_FOLDER } is for notes belonging no folder * {@link Notes#ID_TEMPARAY_FOLDER }
* {@link Notes#ID_CALL_RECORD_FOLDER} is to store call records * {@link Notes#ID_CALL_RECORD_FOLDER}
*/ */
public static final int ID_ROOT_FOLDER = 0; public static final int ID_ROOT_FOLDER = 0;
public static final int ID_TEMPARAY_FOLDER = -1; public static final int ID_TEMPARAY_FOLDER = -1;
public static final int ID_CALL_RECORD_FOLDER = -2; public static final int ID_CALL_RECORD_FOLDER = -2;
public static final int ID_TRASH_FOLER = -3; public static final int ID_TRASH_FOLER = -3;
// 用于传递额外信息的 Intent 键
public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date"; public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date";
public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id"; public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id";
public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id"; public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id";
@ -42,238 +47,236 @@ public class Notes {
public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id"; public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id";
public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date"; public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date";
public static final int TYPE_WIDGET_INVALIDE = -1; // 定义不同类型的部件
public static final int TYPE_WIDGET_2X = 0; public static final int TYPE_WIDGET_INVALIDE = -1;
public static final int TYPE_WIDGET_4X = 1; public static final int TYPE_WIDGET_2X = 0;
public static final int TYPE_WIDGET_4X = 1;
public static class DataConstants { public static class DataConstants {
// 定义笔记和通话记录的内容项类型
public static final String NOTE = TextNote.CONTENT_ITEM_TYPE; public static final String NOTE = TextNote.CONTENT_ITEM_TYPE;
public static final String CALL_NOTE = CallNote.CONTENT_ITEM_TYPE; public static final String CALL_NOTE = CallNote.CONTENT_ITEM_TYPE;
} }
/** /**
* Uri to query all notes and folders * Uri
*/ */
public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note"); public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note");
/** /**
* Uri to query data * Uri
*/ */
public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data"); public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data");
public interface NoteColumns { public interface NoteColumns {
/** /**
* The unique ID for a row * ID
* <P> Type: INTEGER (long) </P> * <P> : INTEGER (long) </P>
*/ */
public static final String ID = "_id"; public static final String ID = "_id";
/** /**
* The parent's id for note or folder * ID
* <P> Type: INTEGER (long) </P> * <P> : INTEGER (long) </P>
*/ */
public static final String PARENT_ID = "parent_id"; public static final String PARENT_ID = "parent_id";
/** /**
* Created data for note or folder *
* <P> Type: INTEGER (long) </P> * <P> : INTEGER (long) </P>
*/ */
public static final String CREATED_DATE = "created_date"; public static final String CREATED_DATE = "created_date";
/** /**
* Latest modified date *
* <P> Type: INTEGER (long) </P> * <P> : INTEGER (long) </P>
*/ */
public static final String MODIFIED_DATE = "modified_date"; public static final String MODIFIED_DATE = "modified_date";
/** /**
* Alert date *
* <P> Type: INTEGER (long) </P> * <P> : INTEGER (long) </P>
*/ */
public static final String ALERTED_DATE = "alert_date"; public static final String ALERTED_DATE = "alert_date";
/** /**
* Folder's name or text content of note *
* <P> Type: TEXT </P> * <P> : TEXT </P>
*/ */
public static final String SNIPPET = "snippet"; public static final String SNIPPET = "snippet";
/** /**
* Note's widget id * ID
* <P> Type: INTEGER (long) </P> * <P> : INTEGER (long) </P>
*/ */
public static final String WIDGET_ID = "widget_id"; public static final String WIDGET_ID = "widget_id";
/** /**
* Note's widget type *
* <P> Type: INTEGER (long) </P> * <P> : INTEGER (long) </P>
*/ */
public static final String WIDGET_TYPE = "widget_type"; public static final String WIDGET_TYPE = "widget_type";
/** /**
* Note's background color's id * ID
* <P> Type: INTEGER (long) </P> * <P> : INTEGER (long) </P>
*/ */
public static final String BG_COLOR_ID = "bg_color_id"; public static final String BG_COLOR_ID = "bg_color_id";
/** /**
* For text note, it doesn't has attachment, for multi-media *
* note, it has at least one attachment * <P> : INTEGER </P>
* <P> Type: INTEGER </P>
*/ */
public static final String HAS_ATTACHMENT = "has_attachment"; public static final String HAS_ATTACHMENT = "has_attachment";
/** /**
* Folder's count of notes *
* <P> Type: INTEGER (long) </P> * <P> : INTEGER (long) </P>
*/ */
public static final String NOTES_COUNT = "notes_count"; public static final String NOTES_COUNT = "notes_count";
/** /**
* The file type: folder or note *
* <P> Type: INTEGER </P> * <P> : INTEGER </P>
*/ */
public static final String TYPE = "type"; public static final String TYPE = "type";
/** /**
* The last sync id * ID
* <P> Type: INTEGER (long) </P> * <P> : INTEGER (long) </P>
*/ */
public static final String SYNC_ID = "sync_id"; public static final String SYNC_ID = "sync_id";
/** /**
* Sign to indicate local modified or not *
* <P> Type: INTEGER </P> * <P> : INTEGER </P>
*/ */
public static final String LOCAL_MODIFIED = "local_modified"; public static final String LOCAL_MODIFIED = "local_modified";
/** /**
* Original parent id before moving into temporary folder * ID
* <P> Type : INTEGER </P> * <P> : INTEGER </P>
*/ */
public static final String ORIGIN_PARENT_ID = "origin_parent_id"; public static final String ORIGIN_PARENT_ID = "origin_parent_id";
/** /**
* The gtask id * gtask ID
* <P> Type : TEXT </P> * <P> : TEXT </P>
*/ */
public static final String GTASK_ID = "gtask_id"; public static final String GTASK_ID = "gtask_id";
/** /**
* The version code *
* <P> Type : INTEGER (long) </P> * <P> : INTEGER (long) </P>
*/ */
public static final String VERSION = "version"; public static final String VERSION = "version";
} }
public interface DataColumns { public interface DataColumns {
/** /**
* The unique ID for a row * ID
* <P> Type: INTEGER (long) </P> * <P> : INTEGER (long) </P>
*/ */
public static final String ID = "_id"; public static final String ID = "_id";
/** /**
* The MIME type of the item represented by this row. * MIME
* <P> Type: Text </P> * <P> : Text </P>
*/ */
public static final String MIME_TYPE = "mime_type"; public static final String MIME_TYPE = "mime_type";
/** /**
* The reference id to note that this data belongs to * ID
* <P> Type: INTEGER (long) </P> * <P> : INTEGER (long) </P>
*/ */
public static final String NOTE_ID = "note_id"; public static final String NOTE_ID = "note_id";
/** /**
* Created data for note or folder *
* <P> Type: INTEGER (long) </P> * <P> : INTEGER (long) </P>
*/ */
public static final String CREATED_DATE = "created_date"; public static final String CREATED_DATE = "created_date";
/** /**
* Latest modified date *
* <P> Type: INTEGER (long) </P> * <P> : INTEGER (long) </P>
*/ */
public static final String MODIFIED_DATE = "modified_date"; public static final String MODIFIED_DATE = "modified_date";
/** /**
* Data's content *
* <P> Type: TEXT </P> * <P> : TEXT </P>
*/ */
public static final String CONTENT = "content"; public static final String CONTENT = "content";
/** /**
* Generic data column, the meaning is {@link #MIMETYPE} specific, used for * {@link #MIMETYPE}
* integer data type * <P> : INTEGER </P>
* <P> Type: INTEGER </P>
*/ */
public static final String DATA1 = "data1"; public static final String DATA1 = "data1";
/** /**
* Generic data column, the meaning is {@link #MIMETYPE} specific, used for * {@link #MIMETYPE}
* integer data type * <P> : INTEGER </P>
* <P> Type: INTEGER </P>
*/ */
public static final String DATA2 = "data2"; public static final String DATA2 = "data2";
/** /**
* Generic data column, the meaning is {@link #MIMETYPE} specific, used for * {@link #MIMETYPE}
* TEXT data type * <P> : TEXT </P>
* <P> Type: TEXT </P>
*/ */
public static final String DATA3 = "data3"; public static final String DATA3 = "data3";
/** /**
* Generic data column, the meaning is {@link #MIMETYPE} specific, used for * {@link #MIMETYPE}
* TEXT data type * <P> : TEXT </P>
* <P> Type: TEXT </P>
*/ */
public static final String DATA4 = "data4"; public static final String DATA4 = "data4";
/** /**
* Generic data column, the meaning is {@link #MIMETYPE} specific, used for * {@link #MIMETYPE}
* TEXT data type * <P> : TEXT </P>
* <P> Type: TEXT </P>
*/ */
public static final String DATA5 = "data5"; public static final String DATA5 = "data5";
} }
public static final class TextNote implements DataColumns { public static final class TextNote implements DataColumns {
/** /**
* Mode to indicate the text in check list mode or not *
* <P> Type: Integer 1:check list mode 0: normal mode </P> * <P> : Integer 1: 0: </P>
*/ */
public static final String MODE = DATA1; public static final String MODE = DATA1;
public static final int MODE_CHECK_LIST = 1; public static final int MODE_CHECK_LIST = 1;
// 文本笔记的内容类型
public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note"; public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note";
// 文本笔记的内容项类型
public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note"; public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note";
// 文本笔记的 Uri
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note"); public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note");
} }
public static final class CallNote implements DataColumns { public static final class CallNote implements DataColumns {
/** /**
* Call date for this record *
* <P> Type: INTEGER (long) </P> * <P> : INTEGER (long) </P>
*/ */
public static final String CALL_DATE = DATA1; public static final String CALL_DATE = DATA1;
/** /**
* Phone number for this record *
* <P> Type: TEXT </P> * <P> : TEXT </P>
*/ */
public static final String PHONE_NUMBER = DATA3; public static final String PHONE_NUMBER = DATA3;
// 通话记录的内容类型
public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note"; public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note";
// 通话记录的内容项类型
public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note"; public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note";
// 通话记录的 Uri
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note"); public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note");
} }
} }

@ -7,7 +7,7 @@
* *
* http://www.apache.org/licenses/LICENSE-2.0 * http://www.apache.org/licenses/LICENSE-2.0
* *
* Unless required by applicable law or agreed to in writing, software * Unless required by law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, * distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and * See the License for the specific language governing permissions and
@ -28,196 +28,245 @@ import net.micode.notes.data.Notes.NoteColumns;
public class NotesDatabaseHelper extends SQLiteOpenHelper { public class NotesDatabaseHelper extends SQLiteOpenHelper {
// 数据库的名称,将被存储在设备存储中
private static final String DB_NAME = "note.db"; private static final String DB_NAME = "note.db";
// 数据库的版本号,用于控制数据库的结构升级
private static final int DB_VERSION = 4; private static final int DB_VERSION = 4;
public interface TABLE { public interface TABLE {
// 表示存储笔记信息的表名
public static final String NOTE = "note"; public static final String NOTE = "note";
// 表示存储笔记相关数据信息的表名
public static final String DATA = "data"; public static final String DATA = "data";
} }
private static final String TAG = "NotesDatabaseHelper"; private static final String TAG = "NotesDatabaseHelper";
// 单例模式的实例,保证在应用中只存在一个数据库帮助类的实例
private static NotesDatabaseHelper mInstance; private static NotesDatabaseHelper mInstance;
// 创建笔记表的 SQL 语句
private static final String CREATE_NOTE_TABLE_SQL = private static final String CREATE_NOTE_TABLE_SQL =
"CREATE TABLE " + TABLE.NOTE + "(" + "CREATE TABLE " + TABLE.NOTE + "(" +
NoteColumns.ID + " INTEGER PRIMARY KEY," + // 笔记的唯一标识符,主键,自动递增
NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.ID + " INTEGER PRIMARY KEY," +
NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," + // 笔记所属父级的 ID默认为 0表示没有父级
NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + // 笔记的提醒日期,默认为 0表示没有设置提醒
NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + // 笔记的背景颜色 ID默认为 0可能对应某种颜色的编码
NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," + // 笔记的创建日期,使用 strftime 函数获取当前时间戳并乘以 1000转换为毫秒级
NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," + // 表示笔记是否包含附件,默认为 0表示没有附件
NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," + NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," + // 笔记的最后修改日期,使用 strftime 函数获取当前时间戳并乘以 1000转换为毫秒级
NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + // 文件夹中笔记的数量,默认为 0
NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," + NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" + // 笔记的摘要信息,默认为空字符串
")"; NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," +
// 笔记的类型,默认为 0可能代表不同类型的笔记如普通笔记、文件夹等
NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," +
// 笔记关联的部件 ID默认为 0
NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," +
// 笔记部件的类型,默认为 -1可能代表不同类型的部件
NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," +
// 笔记的同步 ID默认为 0用于数据同步
NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," +
// 表示笔记是否在本地修改,默认为 0表示未修改
NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," +
// 笔记的原始父级 ID默认为 0
NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
// 可能是用于 Google 任务的 ID默认为空字符串
NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," +
// 笔记的版本号,默认为 0
NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" +
")";
// 创建数据表的 SQL 语句
private static final String CREATE_DATA_TABLE_SQL = private static final String CREATE_DATA_TABLE_SQL =
"CREATE TABLE " + TABLE.DATA + "(" + "CREATE TABLE " + TABLE.DATA + "(" +
DataColumns.ID + " INTEGER PRIMARY KEY," + // 数据记录的唯一标识符,主键,自动递增
DataColumns.MIME_TYPE + " TEXT NOT NULL," + DataColumns.ID + " INTEGER PRIMARY KEY," +
DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," + // 数据的 MIME 类型,用于区分不同类型的数据,如文本、图片等,不能为空
NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + DataColumns.MIME_TYPE + " TEXT NOT NULL," +
NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + // 该数据记录所属笔记的 ID默认为 0
DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," + DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," +
DataColumns.DATA1 + " INTEGER," + // 数据记录的创建日期,使用 strftime 函数获取当前时间戳并乘以 1000转换为毫秒级
DataColumns.DATA2 + " INTEGER," + NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," + // 数据记录的最后修改日期,使用 strftime 函数获取当前时间戳并乘以 1000转换为毫秒级
DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," + NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" + // 数据记录的内容,默认为空字符串
")"; DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," +
// 通用数据列 1可存储整数数据可为空
DataColumns.DATA1 + " INTEGER," +
// 通用数据列 2可存储整数数据可为空
DataColumns.DATA2 + " INTEGER," +
// 通用数据列 3可存储文本数据默认为空字符串
DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," +
// 通用数据列 4可存储文本数据默认为空字符串
DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," +
// 通用数据列 5可存储文本数据默认为空字符串
DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" +
")";
// 创建一个索引,用于提高基于 NOTE_ID 列的数据查询性能
private static final String CREATE_DATA_NOTE_ID_INDEX_SQL = private static final String CREATE_DATA_NOTE_ID_INDEX_SQL =
"CREATE INDEX IF NOT EXISTS note_id_index ON " + "CREATE INDEX IF NOT EXISTS note_id_index ON " +
TABLE.DATA + "(" + DataColumns.NOTE_ID + ");"; TABLE.DATA + "(" + DataColumns.NOTE_ID + ");";
/** /**
* Increase folder's note count when move note to the folder * ID
* 1
*/ */
private static final String NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER = private static final String NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
"CREATE TRIGGER increase_folder_count_on_update "+ "CREATE TRIGGER increase_folder_count_on_update "+
" AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE + " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
" BEGIN " + " BEGIN " +
" UPDATE " + TABLE.NOTE + " UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" + " WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
" END"; " END";
/** /**
* Decrease folder's note count when move note from folder * ID
* 1
*/ */
private static final String NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER = private static final String NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
"CREATE TRIGGER decrease_folder_count_on_update " + "CREATE TRIGGER decrease_folder_count_on_update " +
" AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE + " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
" BEGIN " + " BEGIN " +
" UPDATE " + TABLE.NOTE + " UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID + " WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
" AND " + NoteColumns.NOTES_COUNT + ">0" + ";" + " AND " + NoteColumns.NOTES_COUNT + ">0" + ";" +
" END"; " END";
/** /**
* Increase folder's note count when insert new note to the folder *
* 1
*/ */
private static final String NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER = private static final String NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER =
"CREATE TRIGGER increase_folder_count_on_insert " + "CREATE TRIGGER increase_folder_count_on_insert " +
" AFTER INSERT ON " + TABLE.NOTE + " AFTER INSERT ON " + TABLE.NOTE +
" BEGIN " + " BEGIN " +
" UPDATE " + TABLE.NOTE + " UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" + " WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
" END"; " END";
/** /**
* Decrease folder's note count when delete note from the folder *
* 1
*/ */
private static final String NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER = private static final String NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER =
"CREATE TRIGGER decrease_folder_count_on_delete " + "CREATE TRIGGER decrease_folder_count_on_delete " +
" AFTER DELETE ON " + TABLE.NOTE + " AFTER DELETE ON " + TABLE.NOTE +
" BEGIN " + " BEGIN " +
" UPDATE " + TABLE.NOTE + " UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID + " WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
" AND " + NoteColumns.NOTES_COUNT + ">0;" + " AND " + NoteColumns.NOTES_COUNT + ">0;" +
" END"; " END";
/** /**
* Update note's content when insert data with type {@link DataConstants#NOTE} * MIME {@link DataConstants#NOTE}
*
*/ */
private static final String DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER = private static final String DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER =
"CREATE TRIGGER update_note_content_on_insert " + "CREATE TRIGGER update_note_content_on_insert " +
" AFTER INSERT ON " + TABLE.DATA + " AFTER INSERT ON " + TABLE.DATA +
" WHEN new." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" + " WHEN new." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
" BEGIN" + " BEGIN" +
" UPDATE " + TABLE.NOTE + " UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT + " SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" + " WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
" END"; " END";
/** /**
* Update note's content when data with {@link DataConstants#NOTE} type has changed * MIME {@link DataConstants#NOTE}
*
*/ */
private static final String DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER = private static final String DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER =
"CREATE TRIGGER update_note_content_on_update " + "CREATE TRIGGER update_note_content_on_update " +
" AFTER UPDATE ON " + TABLE.DATA + " AFTER UPDATE ON " + TABLE.DATA +
" WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" + " WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
" BEGIN" + " BEGIN" +
" UPDATE " + TABLE.NOTE + " UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT + " SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" + " WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
" END"; " END";
/** /**
* Update note's content when data with {@link DataConstants#NOTE} type has deleted * MIME {@link DataConstants#NOTE}
*
*/ */
private static final String DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER = private static final String DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER =
"CREATE TRIGGER update_note_content_on_delete " + "CREATE TRIGGER update_note_content_on_delete " +
" AFTER delete ON " + TABLE.DATA + " AFTER delete ON " + TABLE.DATA +
" WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" + " WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
" BEGIN" + " BEGIN" +
" UPDATE " + TABLE.NOTE + " UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.SNIPPET + "=''" + " SET " + NoteColumns.SNIPPET + "=''" +
" WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" + " WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" +
" END"; " END";
/** /**
* Delete datas belong to note which has been deleted *
*
*/ */
private static final String NOTE_DELETE_DATA_ON_DELETE_TRIGGER = private static final String NOTE_DELETE_DATA_ON_DELETE_TRIGGER =
"CREATE TRIGGER delete_data_on_delete " + "CREATE TRIGGER delete_data_on_delete " +
" AFTER DELETE ON " + TABLE.NOTE + " AFTER DELETE ON " + TABLE.NOTE +
" BEGIN" + " BEGIN" +
" DELETE FROM " + TABLE.DATA + " DELETE FROM " + TABLE.DATA +
" WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" + " WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" +
" END"; " END";
/** /**
* Delete notes belong to folder which has been deleted *
*
*/ */
private static final String FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER = private static final String FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER =
"CREATE TRIGGER folder_delete_notes_on_delete " + "CREATE TRIGGER folder_delete_notes_on_delete " +
" AFTER DELETE ON " + TABLE.NOTE + " AFTER DELETE ON " + TABLE.NOTE +
" BEGIN" + " BEGIN" +
" DELETE FROM " + TABLE.NOTE + " DELETE FROM " + TABLE.NOTE +
" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" + " WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
" END"; " END";
/** /**
* Move notes belong to folder which has been moved to trash folder *
* ID ID
*/ */
private static final String FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER = private static final String FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER =
"CREATE TRIGGER folder_move_notes_on_trash " + "CREATE TRIGGER folder_move_notes_on_trash " +
" AFTER UPDATE ON " + TABLE.NOTE + " AFTER UPDATE ON " + TABLE.NOTE +
" WHEN new." + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER + " WHEN new." + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
" BEGIN" + " BEGIN" +
" UPDATE " + TABLE.NOTE + " UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER + " SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" + " WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
" END"; " END";
public NotesDatabaseHelper(Context context) { public NotesDatabaseHelper(Context context) {
super(context, DB_NAME, null, DB_VERSION); super(context, DB_NAME, null, DB_VERSION);
} }
// 创建笔记表的方法
public void createNoteTable(SQLiteDatabase db) { public void createNoteTable(SQLiteDatabase db) {
// 执行创建笔记表的 SQL 语句
db.execSQL(CREATE_NOTE_TABLE_SQL); db.execSQL(CREATE_NOTE_TABLE_SQL);
// 重新创建与笔记表相关的触发器
reCreateNoteTableTriggers(db); reCreateNoteTableTriggers(db);
// 创建系统文件夹
createSystemFolder(db); createSystemFolder(db);
Log.d(TAG, "note table has been created"); Log.d(TAG, "note table has been created");
} }
// 重新创建与笔记表相关的触发器
private void reCreateNoteTableTriggers(SQLiteDatabase db) { private void reCreateNoteTableTriggers(SQLiteDatabase db) {
// 删除可能已存在的触发器,避免重复创建或冲突
db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_update"); db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_update");
db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_update"); db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_update");
db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_delete"); db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_delete");
@ -226,6 +275,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
db.execSQL("DROP TRIGGER IF EXISTS folder_delete_notes_on_delete"); db.execSQL("DROP TRIGGER IF EXISTS folder_delete_notes_on_delete");
db.execSQL("DROP TRIGGER IF EXISTS folder_move_notes_on_trash"); db.execSQL("DROP TRIGGER IF EXISTS folder_move_notes_on_trash");
// 创建触发器
db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER); db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER);
db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER); db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER);
db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER); db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER);
@ -235,18 +285,21 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
db.execSQL(FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER); db.execSQL(FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER);
} }
// 创建系统文件夹的方法
private void createSystemFolder(SQLiteDatabase db) { private void createSystemFolder(SQLiteDatabase db) {
ContentValues values = new ContentValues(); ContentValues values = new ContentValues();
/** /**
* call record foler for call notes *
* ContentValues
*/ */
values.put(NoteColumns.ID, Notes.ID_CALL_RECORD_FOLDER); values.put(NoteColumns.ID, Notes.ID_CALL_RECORD_FOLDER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
db.insert(TABLE.NOTE, null, values); db.insert(TABLE.NOTE, null, values);
/** /**
* root folder which is default folder *
* ContentValues
*/ */
values.clear(); values.clear();
values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER); values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER);
@ -254,7 +307,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
db.insert(TABLE.NOTE, null, values); db.insert(TABLE.NOTE, null, values);
/** /**
* temporary folder which is used for moving note *
* ContentValues
*/ */
values.clear(); values.clear();
values.put(NoteColumns.ID, Notes.ID_TEMPARAY_FOLDER); values.put(NoteColumns.ID, Notes.ID_TEMPARAY_FOLDER);
@ -262,7 +316,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
db.insert(TABLE.NOTE, null, values); db.insert(TABLE.NOTE, null, values);
/** /**
* create trash folder *
* ContentValues
*/ */
values.clear(); values.clear();
values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER); values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER);
@ -270,23 +325,31 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
db.insert(TABLE.NOTE, null, values); db.insert(TABLE.NOTE, null, values);
} }
// 创建数据记录表的方法
public void createDataTable(SQLiteDatabase db) { public void createDataTable(SQLiteDatabase db) {
// 执行创建数据记录表的 SQL 语句
db.execSQL(CREATE_DATA_TABLE_SQL); db.execSQL(CREATE_DATA_TABLE_SQL);
// 重新创建与数据记录表相关的触发器
reCreateDataTableTriggers(db); reCreateDataTableTriggers(db);
// 创建索引,提高数据查询性能
db.execSQL(CREATE_DATA_NOTE_ID_INDEX_SQL); db.execSQL(CREATE_DATA_NOTE_ID_INDEX_SQL);
Log.d(TAG, "data table has been created"); Log.d(TAG, "data table has been created");
} }
// 重新创建与数据记录表相关的触发器
private void reCreateDataTableTriggers(SQLiteDatabase db) { private void reCreateDataTableTriggers(SQLiteDatabase db) {
// 删除可能已存在的触发器,避免重复创建或冲突
db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_insert"); db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_insert");
db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_update"); db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_update");
db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_delete"); db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_delete");
// 创建触发器
db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER); db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER);
db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER); db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER);
db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER); db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER);
} }
// 获取单例的方法,保证在多线程环境下只创建一个实例
static synchronized NotesDatabaseHelper getInstance(Context context) { static synchronized NotesDatabaseHelper getInstance(Context context) {
if (mInstance == null) { if (mInstance == null) {
mInstance = new NotesDatabaseHelper(context); mInstance = new NotesDatabaseHelper(context);
@ -296,6 +359,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
@Override @Override
public void onCreate(SQLiteDatabase db) { public void onCreate(SQLiteDatabase db) {
// 调用创建笔记表和数据记录表的方法
createNoteTable(db); createNoteTable(db);
createDataTable(db); createDataTable(db);
} }
@ -306,57 +370,68 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
boolean skipV2 = false; boolean skipV2 = false;
if (oldVersion == 1) { if (oldVersion == 1) {
// 从版本 1 升级到版本 2 的操作
upgradeToV2(db); upgradeToV2(db);
skipV2 = true; // this upgrade including the upgrade from v2 to v3 skipV2 = true; // 标记已完成从版本 2 到版本 3 的部分升级步骤
oldVersion++; oldVersion++;
} }
if (oldVersion == 2 && !skipV2) { if (oldVersion == 2 &&!skipV2) {
// 从版本 2 升级到版本 3 的操作
upgradeToV3(db); upgradeToV3(db);
reCreateTriggers = true; reCreateTriggers = true;
oldVersion++; oldVersion++;
} }
if (oldVersion == 3) { if (oldVersion == 3) {
// 从版本 3 升级到版本 4 的操作
upgradeToV4(db); upgradeToV4(db);
oldVersion++; oldVersion++;
} }
if (reCreateTriggers) { if (reCreateTriggers) {
// 重新创建触发器,以适应新的数据库结构
reCreateNoteTableTriggers(db); reCreateNoteTableTriggers(db);
reCreateDataTableTriggers(db); reCreateDataTableTriggers(db);
} }
if (oldVersion != newVersion) { if (oldVersion!= newVersion) {
// 若升级未成功,抛出异常
throw new IllegalStateException("Upgrade notes database to version " + newVersion throw new IllegalStateException("Upgrade notes database to version " + newVersion
+ "fails"); + "fails");
} }
} }
// 从版本 1 升级到版本 2 的方法
private void upgradeToV2(SQLiteDatabase db) { private void upgradeToV2(SQLiteDatabase db) {
// 删除旧的笔记表和数据记录表
db.execSQL("DROP TABLE IF EXISTS " + TABLE.NOTE); db.execSQL("DROP TABLE IF EXISTS " + TABLE.NOTE);
db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA); db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA);
// 重新创建笔记表和数据记录表
createNoteTable(db); createNoteTable(db);
createDataTable(db); createDataTable(db);
} }
// 从版本 2 升级到版本 3 的方法
private void upgradeToV3(SQLiteDatabase db) { private void upgradeToV3(SQLiteDatabase db) {
// drop unused triggers // 删除不再使用的触发器
db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_insert"); db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_insert");
db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_delete"); db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_delete");
db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_update"); db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_update");
// add a column for gtask id // 为笔记表添加新列 GTASK_ID
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.GTASK_ID db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.GTASK_ID
+ " TEXT NOT NULL DEFAULT ''"); + " TEXT NOT NULL DEFAULT ''");
// add a trash system folder // 创建回收站系统文件夹
ContentValues values = new ContentValues(); ContentValues values = new ContentValues();
values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER); values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
db.insert(TABLE.NOTE, null, values); db.insert(TABLE.NOTE, null, values);
} }
// 从版本 3 升级到版本 4 的方法
private void upgradeToV4(SQLiteDatabase db) { private void upgradeToV4(SQLiteDatabase db) {
// 为笔记表添加新列 VERSION
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION
+ " INTEGER NOT NULL DEFAULT 0"); + " INTEGER NOT NULL DEFAULT 0");
} }
} }

@ -7,7 +7,7 @@
* *
* http://www.apache.org/licenses/LICENSE-2.0 * http://www.apache.org/licenses/LICENSE-2.0
* *
* Unless required by applicable law or agreed to in writing, software * Unless required by law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, * distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and * See the License for the specific language governing permissions and
@ -36,22 +36,24 @@ import net.micode.notes.data.NotesDatabaseHelper.TABLE;
public class NotesProvider extends ContentProvider { public class NotesProvider extends ContentProvider {
// 用于匹配 URI 的 UriMatcher 实例
private static final UriMatcher mMatcher; private static final UriMatcher mMatcher;
// 数据库辅助类的实例,用于操作数据库
private NotesDatabaseHelper mHelper; private NotesDatabaseHelper mHelper;
// 日志标签
private static final String TAG = "NotesProvider"; private static final String TAG = "NotesProvider";
// 定义不同 URI 匹配的常量
private static final int URI_NOTE = 1; private static final int URI_NOTE = 1;
private static final int URI_NOTE_ITEM = 2; private static final int URI_NOTE_ITEM = 2;
private static final int URI_DATA = 3; private static final int URI_DATA = 3;
private static final int URI_DATA_ITEM = 4; private static final int URI_DATA_ITEM = 4;
private static final int URI_SEARCH = 5;
private static final int URI_SEARCH = 5; private static final int URI_SEARCH_SUGGEST = 6;
private static final int URI_SEARCH_SUGGEST = 6;
static { static {
// 初始化 UriMatcher
mMatcher = new UriMatcher(UriMatcher.NO_MATCH); mMatcher = new UriMatcher(UriMatcher.NO_MATCH);
// 为不同的 URI 模式添加匹配规则
mMatcher.addURI(Notes.AUTHORITY, "note", URI_NOTE); mMatcher.addURI(Notes.AUTHORITY, "note", URI_NOTE);
mMatcher.addURI(Notes.AUTHORITY, "note/#", URI_NOTE_ITEM); mMatcher.addURI(Notes.AUTHORITY, "note/#", URI_NOTE_ITEM);
mMatcher.addURI(Notes.AUTHORITY, "data", URI_DATA); mMatcher.addURI(Notes.AUTHORITY, "data", URI_DATA);
@ -62,57 +64,66 @@ public class NotesProvider extends ContentProvider {
} }
/** /**
* x'0A' represents the '\n' character in sqlite. For title and content in the search result, * x'0A' SQLite '\n'
* we will trim '\n' and white space in order to show more information. * '\n' 便
*/ */
private static final String NOTES_SEARCH_PROJECTION = NoteColumns.ID + "," private static final String NOTES_SEARCH_PROJECTION = NoteColumns.ID + ","
+ NoteColumns.ID + " AS " + SearchManager.SUGGEST_COLUMN_INTENT_EXTRA_DATA + "," + NoteColumns.ID + " AS " + SearchManager.SUGGEST_COLUMN_INTENT_EXTRA_DATA + ","
+ "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_1 + "," + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_1 + ","
+ "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_2 + "," + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_2 + ","
+ R.drawable.search_result + " AS " + SearchManager.SUGGEST_COLUMN_ICON_1 + "," + R.drawable.search_result + " AS " + SearchManager.SUGGEST_COLUMN_ICON_1 + ","
+ "'" + Intent.ACTION_VIEW + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_ACTION + "," + "'" + Intent.ACTION_VIEW + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_ACTION + ","
+ "'" + Notes.TextNote.CONTENT_TYPE + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_DATA; + "'" + Notes.TextNote.CONTENT_TYPE + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_DATA;
// 搜索笔记摘要的查询语句
private static String NOTES_SNIPPET_SEARCH_QUERY = "SELECT " + NOTES_SEARCH_PROJECTION private static String NOTES_SNIPPET_SEARCH_QUERY = "SELECT " + NOTES_SEARCH_PROJECTION
+ " FROM " + TABLE.NOTE + " FROM " + TABLE.NOTE
+ " WHERE " + NoteColumns.SNIPPET + " LIKE ?" + " WHERE " + NoteColumns.SNIPPET + " LIKE?"
+ " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER
+ " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE; + " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE;
@Override @Override
public boolean onCreate() { public boolean onCreate() {
// 获取数据库辅助类的实例
mHelper = NotesDatabaseHelper.getInstance(getContext()); mHelper = NotesDatabaseHelper.getInstance(getContext());
return true; return true;
} }
@Override @Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
String sortOrder) { String sortOrder) {
Cursor c = null; Cursor c = null;
// 获取可读数据库实例
SQLiteDatabase db = mHelper.getReadableDatabase(); SQLiteDatabase db = mHelper.getReadableDatabase();
String id = null; String id = null;
// 根据 URI 匹配结果执行不同的查询操作
switch (mMatcher.match(uri)) { switch (mMatcher.match(uri)) {
case URI_NOTE: case URI_NOTE:
// 查询笔记表
c = db.query(TABLE.NOTE, projection, selection, selectionArgs, null, null, c = db.query(TABLE.NOTE, projection, selection, selectionArgs, null, null,
sortOrder); sortOrder);
break; break;
case URI_NOTE_ITEM: case URI_NOTE_ITEM:
// 查询笔记表中的特定项
id = uri.getPathSegments().get(1); id = uri.getPathSegments().get(1);
c = db.query(TABLE.NOTE, projection, NoteColumns.ID + "=" + id c = db.query(TABLE.NOTE, projection, NoteColumns.ID + "=" + id
+ parseSelection(selection), selectionArgs, null, null, sortOrder); + parseSelection(selection), selectionArgs, null, null, sortOrder);
break; break;
case URI_DATA: case URI_DATA:
// 查询数据表
c = db.query(TABLE.DATA, projection, selection, selectionArgs, null, null, c = db.query(TABLE.DATA, projection, selection, selectionArgs, null, null,
sortOrder); sortOrder);
break; break;
case URI_DATA_ITEM: case URI_DATA_ITEM:
// 查询数据表中的特定项
id = uri.getPathSegments().get(1); id = uri.getPathSegments().get(1);
c = db.query(TABLE.DATA, projection, DataColumns.ID + "=" + id c = db.query(TABLE.DATA, projection, DataColumns.ID + "=" + id
+ parseSelection(selection), selectionArgs, null, null, sortOrder); + parseSelection(selection), selectionArgs, null, null, sortOrder);
break; break;
case URI_SEARCH: case URI_SEARCH:
case URI_SEARCH_SUGGEST: case URI_SEARCH_SUGGEST:
if (sortOrder != null || projection != null) { if (sortOrder!= null || projection!= null) {
// 如果设置了排序顺序或投影,抛出异常
throw new IllegalArgumentException( throw new IllegalArgumentException(
"do not specify sortOrder, selection, selectionArgs, or projection" + "with this query"); "do not specify sortOrder, selection, selectionArgs, or projection" + "with this query");
} }
@ -120,6 +131,7 @@ public class NotesProvider extends ContentProvider {
String searchString = null; String searchString = null;
if (mMatcher.match(uri) == URI_SEARCH_SUGGEST) { if (mMatcher.match(uri) == URI_SEARCH_SUGGEST) {
if (uri.getPathSegments().size() > 1) { if (uri.getPathSegments().size() > 1) {
// 获取搜索字符串
searchString = uri.getPathSegments().get(1); searchString = uri.getPathSegments().get(1);
} }
} else { } else {
@ -131,7 +143,9 @@ public class NotesProvider extends ContentProvider {
} }
try { try {
// 格式化搜索字符串
searchString = String.format("%%%s%%", searchString); searchString = String.format("%%%s%%", searchString);
// 执行原始查询
c = db.rawQuery(NOTES_SNIPPET_SEARCH_QUERY, c = db.rawQuery(NOTES_SNIPPET_SEARCH_QUERY,
new String[] { searchString }); new String[] { searchString });
} catch (IllegalStateException ex) { } catch (IllegalStateException ex) {
@ -139,9 +153,11 @@ public class NotesProvider extends ContentProvider {
} }
break; break;
default: default:
// 不匹配的 URI 抛出异常
throw new IllegalArgumentException("Unknown URI " + uri); throw new IllegalArgumentException("Unknown URI " + uri);
} }
if (c != null) { if (c!= null) {
// 设置通知 URI
c.setNotificationUri(getContext().getContentResolver(), uri); c.setNotificationUri(getContext().getContentResolver(), uri);
} }
return c; return c;
@ -149,30 +165,36 @@ public class NotesProvider extends ContentProvider {
@Override @Override
public Uri insert(Uri uri, ContentValues values) { public Uri insert(Uri uri, ContentValues values) {
// 获取可写数据库实例
SQLiteDatabase db = mHelper.getWritableDatabase(); SQLiteDatabase db = mHelper.getWritableDatabase();
long dataId = 0, noteId = 0, insertedId = 0; long dataId = 0, noteId = 0, insertedId = 0;
// 根据 URI 匹配结果执行不同的插入操作
switch (mMatcher.match(uri)) { switch (mMatcher.match(uri)) {
case URI_NOTE: case URI_NOTE:
// 插入笔记表
insertedId = noteId = db.insert(TABLE.NOTE, null, values); insertedId = noteId = db.insert(TABLE.NOTE, null, values);
break; break;
case URI_DATA: case URI_DATA:
if (values.containsKey(DataColumns.NOTE_ID)) { if (values.containsKey(DataColumns.NOTE_ID)) {
// 获取笔记 ID
noteId = values.getAsLong(DataColumns.NOTE_ID); noteId = values.getAsLong(DataColumns.NOTE_ID);
} else { } else {
Log.d(TAG, "Wrong data format without note id:" + values.toString()); Log.d(TAG, "Wrong data format without note id:" + values.toString());
} }
// 插入数据表
insertedId = dataId = db.insert(TABLE.DATA, null, values); insertedId = dataId = db.insert(TABLE.DATA, null, values);
break; break;
default: default:
// 不匹配的 URI 抛出异常
throw new IllegalArgumentException("Unknown URI " + uri); throw new IllegalArgumentException("Unknown URI " + uri);
} }
// Notify the note uri // 通知笔记 URI 的变更
if (noteId > 0) { if (noteId > 0) {
getContext().getContentResolver().notifyChange( getContext().getContentResolver().notifyChange(
ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null); ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null);
} }
// Notify the data uri // 通知数据 URI 的变更
if (dataId > 0) { if (dataId > 0) {
getContext().getContentResolver().notifyChange( getContext().getContentResolver().notifyChange(
ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null); ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null);
@ -185,43 +207,51 @@ public class NotesProvider extends ContentProvider {
public int delete(Uri uri, String selection, String[] selectionArgs) { public int delete(Uri uri, String selection, String[] selectionArgs) {
int count = 0; int count = 0;
String id = null; String id = null;
// 获取可写数据库实例
SQLiteDatabase db = mHelper.getWritableDatabase(); SQLiteDatabase db = mHelper.getWritableDatabase();
boolean deleteData = false; boolean deleteData = false;
// 根据 URI 匹配结果执行不同的删除操作
switch (mMatcher.match(uri)) { switch (mMatcher.match(uri)) {
case URI_NOTE: case URI_NOTE:
selection = "(" + selection + ") AND " + NoteColumns.ID + ">0 "; selection = "(" + selection + ") AND " + NoteColumns.ID + ">0 ";
// 删除笔记表中的数据
count = db.delete(TABLE.NOTE, selection, selectionArgs); count = db.delete(TABLE.NOTE, selection, selectionArgs);
break; break;
case URI_NOTE_ITEM: case URI_NOTE_ITEM:
id = uri.getPathSegments().get(1); id = uri.getPathSegments().get(1);
/** /**
* ID that smaller than 0 is system folder which is not allowed to * ID 0
* trash
*/ */
long noteId = Long.valueOf(id); long noteId = Long.valueOf(id);
if (noteId <= 0) { if (noteId <= 0) {
break; break;
} }
// 删除笔记表中的特定项
count = db.delete(TABLE.NOTE, count = db.delete(TABLE.NOTE,
NoteColumns.ID + "=" + id + parseSelection(selection), selectionArgs); NoteColumns.ID + "=" + id + parseSelection(selection), selectionArgs);
break; break;
case URI_DATA: case URI_DATA:
// 删除数据表中的数据
count = db.delete(TABLE.DATA, selection, selectionArgs); count = db.delete(TABLE.DATA, selection, selectionArgs);
deleteData = true; deleteData = true;
break; break;
case URI_DATA_ITEM: case URI_DATA_ITEM:
id = uri.getPathSegments().get(1); id = uri.getPathSegments().get(1);
// 删除数据表中的特定项
count = db.delete(TABLE.DATA, count = db.delete(TABLE.DATA,
DataColumns.ID + "=" + id + parseSelection(selection), selectionArgs); DataColumns.ID + "=" + id + parseSelection(selection), selectionArgs);
deleteData = true; deleteData = true;
break; break;
default: default:
// 不匹配的 URI 抛出异常
throw new IllegalArgumentException("Unknown URI " + uri); throw new IllegalArgumentException("Unknown URI " + uri);
} }
if (count > 0) { if (count > 0) {
if (deleteData) { if (deleteData) {
// 通知笔记 URI 的变更
getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null); getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null);
} }
// 通知 URI 的变更
getContext().getContentResolver().notifyChange(uri, null); getContext().getContentResolver().notifyChange(uri, null);
} }
return count; return count;
@ -231,46 +261,59 @@ public class NotesProvider extends ContentProvider {
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) { public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
int count = 0; int count = 0;
String id = null; String id = null;
// 获取可写数据库实例
SQLiteDatabase db = mHelper.getWritableDatabase(); SQLiteDatabase db = mHelper.getWritableDatabase();
boolean updateData = false; boolean updateData = false;
// 根据 URI 匹配结果执行不同的更新操作
switch (mMatcher.match(uri)) { switch (mMatcher.match(uri)) {
case URI_NOTE: case URI_NOTE:
// 更新笔记版本
increaseNoteVersion(-1, selection, selectionArgs); increaseNoteVersion(-1, selection, selectionArgs);
// 更新笔记表中的数据
count = db.update(TABLE.NOTE, values, selection, selectionArgs); count = db.update(TABLE.NOTE, values, selection, selectionArgs);
break; break;
case URI_NOTE_ITEM: case URI_NOTE_ITEM:
id = uri.getPathSegments().get(1); id = uri.getPathSegments().get(1);
// 更新笔记版本
increaseNoteVersion(Long.valueOf(id), selection, selectionArgs); increaseNoteVersion(Long.valueOf(id), selection, selectionArgs);
// 更新笔记表中的特定项
count = db.update(TABLE.NOTE, values, NoteColumns.ID + "=" + id count = db.update(TABLE.NOTE, values, NoteColumns.ID + "=" + id
+ parseSelection(selection), selectionArgs); + parseSelection(selection), selectionArgs);
break; break;
case URI_DATA: case URI_DATA:
// 更新数据表中的数据
count = db.update(TABLE.DATA, values, selection, selectionArgs); count = db.update(TABLE.DATA, values, selection, selectionArgs);
updateData = true; updateData = true;
break; break;
case URI_DATA_ITEM: case URI_DATA_ITEM:
id = uri.getPathSegments().get(1); id = uri.getPathSegments().get(1);
// 更新数据表中的特定项
count = db.update(TABLE.DATA, values, DataColumns.ID + "=" + id count = db.update(TABLE.DATA, values, DataColumns.ID + "=" + id
+ parseSelection(selection), selectionArgs); + parseSelection(selection), selectionArgs);
updateData = true; updateData = true;
break; break;
default: default:
// 不匹配的 URI 抛出异常
throw new IllegalArgumentException("Unknown URI " + uri); throw new IllegalArgumentException("Unknown URI " + uri);
} }
if (count > 0) { if (count > 0) {
if (updateData) { if (updateData) {
// 通知笔记 URI 的变更
getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null); getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null);
} }
// 通知 URI 的变更
getContext().getContentResolver().notifyChange(uri, null); getContext().getContentResolver().notifyChange(uri, null);
} }
return count; return count;
} }
// 解析选择条件
private String parseSelection(String selection) { private String parseSelection(String selection) {
return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : ""); return (!TextUtils.isEmpty(selection)? " AND (" + selection + ')' : "");
} }
// 增加笔记的版本号
private void increaseNoteVersion(long id, String selection, String[] selectionArgs) { private void increaseNoteVersion(long id, String selection, String[] selectionArgs) {
StringBuilder sql = new StringBuilder(120); StringBuilder sql = new StringBuilder(120);
sql.append("UPDATE "); sql.append("UPDATE ");
@ -279,14 +322,14 @@ public class NotesProvider extends ContentProvider {
sql.append(NoteColumns.VERSION); sql.append(NoteColumns.VERSION);
sql.append("=" + NoteColumns.VERSION + "+1 "); sql.append("=" + NoteColumns.VERSION + "+1 ");
if (id > 0 || !TextUtils.isEmpty(selection)) { if (id > 0 ||!TextUtils.isEmpty(selection)) {
sql.append(" WHERE "); sql.append(" WHERE ");
} }
if (id > 0) { if (id > 0) {
sql.append(NoteColumns.ID + "=" + String.valueOf(id)); sql.append(NoteColumns.ID + "=" + String.valueOf(id));
} }
if (!TextUtils.isEmpty(selection)) { if (!TextUtils.isEmpty(selection)) {
String selectString = id > 0 ? parseSelection(selection) : selection; String selectString = id > 0? parseSelection(selection) : selection;
for (String args : selectionArgs) { for (String args : selectionArgs) {
selectString = selectString.replaceFirst("\\?", args); selectString = selectString.replaceFirst("\\?", args);
} }
@ -298,8 +341,8 @@ public class NotesProvider extends ContentProvider {
@Override @Override
public String getType(Uri uri) { public String getType(Uri uri) {
// TODO Auto-generated method stub // 待实现的方法,目前返回 null
return null; return null;
} }
} }

@ -26,37 +26,49 @@ import org.json.JSONObject;
public class MetaData extends Task { public class MetaData extends Task {
// 日志标签,使用类的简单名称作为标签
private final static String TAG = MetaData.class.getSimpleName(); private final static String TAG = MetaData.class.getSimpleName();
// 存储相关的 GID 信息
private String mRelatedGid = null; private String mRelatedGid = null;
// 设置元数据的方法
public void setMeta(String gid, JSONObject metaInfo) { public void setMeta(String gid, JSONObject metaInfo) {
try { try {
// 将 GID 放入元信息的 JSON 对象中
metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid); metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid);
} catch (JSONException e) { } catch (JSONException e) {
// 发生异常时打印错误日志
Log.e(TAG, "failed to put related gid"); Log.e(TAG, "failed to put related gid");
} }
// 将元信息对象转换为字符串并设置为笔记内容
setNotes(metaInfo.toString()); setNotes(metaInfo.toString());
// 设置名称为预定义的元数据笔记名称
setName(GTaskStringUtils.META_NOTE_NAME); setName(GTaskStringUtils.META_NOTE_NAME);
} }
// 获取相关 GID 的方法
public String getRelatedGid() { public String getRelatedGid() {
return mRelatedGid; return mRelatedGid;
} }
@Override @Override
public boolean isWorthSaving() { public boolean isWorthSaving() {
return getNotes() != null; // 判断是否值得保存,当笔记内容不为空时返回 true
return getNotes()!= null;
} }
@Override @Override
public void setContentByRemoteJSON(JSONObject js) { public void setContentByRemoteJSON(JSONObject js) {
// 调用父类的方法设置内容
super.setContentByRemoteJSON(js); super.setContentByRemoteJSON(js);
if (getNotes() != null) { if (getNotes()!= null) {
try { try {
// 将笔记内容转换为 JSON 对象
JSONObject metaInfo = new JSONObject(getNotes().trim()); JSONObject metaInfo = new JSONObject(getNotes().trim());
// 从元信息中获取相关 GID
mRelatedGid = metaInfo.getString(GTaskStringUtils.META_HEAD_GTASK_ID); mRelatedGid = metaInfo.getString(GTaskStringUtils.META_HEAD_GTASK_ID);
} catch (JSONException e) { } catch (JSONException e) {
// 发生异常时打印警告日志并将相关 GID 设为 null
Log.w(TAG, "failed to get related gid"); Log.w(TAG, "failed to get related gid");
mRelatedGid = null; mRelatedGid = null;
} }
@ -65,18 +77,20 @@ public class MetaData extends Task {
@Override @Override
public void setContentByLocalJSON(JSONObject js) { public void setContentByLocalJSON(JSONObject js) {
// this function should not be called // 此方法不应该被调用,如果被调用则抛出非法访问错误
throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called"); throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called");
} }
@Override @Override
public JSONObject getLocalJSONFromContent() { public JSONObject getLocalJSONFromContent() {
// 此方法不应该被调用,如果被调用则抛出非法访问错误
throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called"); throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called");
} }
@Override @Override
public int getSyncAction(Cursor c) { public int getSyncAction(Cursor c) {
// 此方法不应该被调用,如果被调用则抛出非法访问错误
throw new IllegalAccessError("MetaData:getSyncAction should not be called"); throw new IllegalAccessError("MetaData:getSyncAction should not be called");
} }
} }

@ -8,8 +8,8 @@
* http://www.apache.org/licenses/LICENSE-2.0 * http://www.apache.org/licenses/LICENSE-2.0
* *
* Unless required by applicable law or agreed to in writing, software * Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, * distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * WITHOUT WARRANTIES OR CONDITIONS of any kind, either express or implied.
* See the License for the specific language governing permissions and * See the License for the specific language governing permissions and
* limitations under the License. * limitations under the License.
*/ */
@ -37,10 +37,12 @@ import java.io.PrintStream;
public class BackupUtils { public class BackupUtils {
// 日志标签,用于在日志输出中标识来自 BackupUtils 类的信息,方便调试和错误追踪
private static final String TAG = "BackupUtils"; private static final String TAG = "BackupUtils";
// Singleton stuff // 单例模式下的唯一 BackupUtils 实例
private static BackupUtils sInstance; private static BackupUtils sInstance;
// 获取 BackupUtils 的单例实例,使用 synchronized 关键字确保多线程环境下的线程安全
public static synchronized BackupUtils getInstance(Context context) { public static synchronized BackupUtils getInstance(Context context) {
if (sInstance == null) { if (sInstance == null) {
sInstance = new BackupUtils(context); sInstance = new BackupUtils(context);
@ -49,56 +51,62 @@ public class BackupUtils {
} }
/** /**
* Following states are signs to represents backup or restore *
* status
*/ */
// Currently, the sdcard is not mounted // 表示外部存储设备(如 SD 卡)未挂载,此时无法进行备份或恢复操作
public static final int STATE_SD_CARD_UNMOUONTED = 0; public static final int STATE_SD_CARD_UNMOUONTED = 0;
// The backup file not exist // 表示备份文件不存在,可能是尚未进行备份操作或备份文件已被删除
public static final int STATE_BACKUP_FILE_NOT_EXIST = 1; public static final int STATE_BACKUP_FILE_NOT_EXIST = 1;
// The data is not well formated, may be changed by other programs // 表示数据格式被破坏,可能是数据被其他程序修改导致无法正常进行备份或恢复
public static final int STATE_DATA_DESTROIED = 2; public static final int STATE_DATA_DESTROIED = 2;
// Some run-time exception which causes restore or backup fails // 表示系统错误,在备份或恢复过程中发生了运行时异常
public static final int STATE_SYSTEM_ERROR = 3; public static final int STATE_SYSTEM_ERROR = 3;
// Backup or restore success // 表示备份或恢复操作成功
public static final int STATE_SUCCESS = 4; public static final int STATE_SUCCESS = 4;
private TextExport mTextExport; private TextExport mTextExport;
// 构造函数,接收一个 Context 对象,用于获取资源和与系统服务交互,同时初始化 TextExport 对象
private BackupUtils(Context context) { private BackupUtils(Context context) {
mTextExport = new TextExport(context); mTextExport = new TextExport(context);
} }
// 检查外部存储是否可用,通过比较存储状态与 MEDIA_MOUNTED 常量来判断
private static boolean externalStorageAvailable() { private static boolean externalStorageAvailable() {
return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState()); return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
} }
// 导出数据为文本文件,调用 TextExport 类的 exportToText 方法进行实际的导出操作
public int exportToText() { public int exportToText() {
return mTextExport.exportToText(); return mTextExport.exportToText();
} }
// 获取导出的文本文件的文件名,该文件名由 TextExport 类的 exportToText 方法生成
public String getExportedTextFileName() { public String getExportedTextFileName() {
return mTextExport.mFileName; return mTextExport.mFileName;
} }
// 获取导出的文本文件的目录,该目录由 TextExport 类的 exportToText 方法生成
public String getExportedTextFileDir() { public String getExportedTextFileDir() {
return mTextExport.mFileDirectory; return mTextExport.mFileDirectory;
} }
// 内部静态类 TextExport负责将数据导出为文本的具体操作
private static class TextExport { private static class TextExport {
// 定义查询笔记时需要的列,包含笔记的 ID、修改日期、摘要和类型等信息
private static final String[] NOTE_PROJECTION = { private static final String[] NOTE_PROJECTION = {
NoteColumns.ID, NoteColumns.ID,
NoteColumns.MODIFIED_DATE, NoteColumns.MODIFIED_DATE,
NoteColumns.SNIPPET, NoteColumns.SNIPPET,
NoteColumns.TYPE NoteColumns.TYPE
}; };
// 笔记列的索引,方便在查询结果中定位笔记的 ID
private static final int NOTE_COLUMN_ID = 0; private static final int NOTE_COLUMN_ID = 0;
// 笔记列的索引,方便在查询结果中定位笔记的修改日期
private static final int NOTE_COLUMN_MODIFIED_DATE = 1; private static final int NOTE_COLUMN_MODIFIED_DATE = 1;
// 笔记列的索引,方便在查询结果中定位笔记的摘要
private static final int NOTE_COLUMN_SNIPPET = 2; private static final int NOTE_COLUMN_SNIPPET = 2;
// 定义查询数据时需要的列包含内容、MIME 类型、数据 1 到数据 4 等信息
private static final String[] DATA_PROJECTION = { private static final String[] DATA_PROJECTION = {
DataColumns.CONTENT, DataColumns.CONTENT,
DataColumns.MIME_TYPE, DataColumns.MIME_TYPE,
@ -107,129 +115,146 @@ public class BackupUtils {
DataColumns.DATA3, DataColumns.DATA3,
DataColumns.DATA4, DataColumns.DATA4,
}; };
// 数据列的索引,方便在查询结果中定位数据的内容
private static final int DATA_COLUMN_CONTENT = 0; private static final int DATA_COLUMN_CONTENT = 0;
// 数据列的索引,方便在查询结果中定位数据的 MIME 类型
private static final int DATA_COLUMN_MIME_TYPE = 1; private static final int DATA_COLUMN_MIME_TYPE = 1;
// 数据列的索引,方便在查询结果中定位通话日期
private static final int DATA_COLUMN_CALL_DATE = 2; private static final int DATA_COLUMN_CALL_DATE = 2;
// 数据列的索引,方便在查询结果中定位电话号码
private static final int DATA_COLUMN_PHONE_NUMBER = 4; private static final int DATA_COLUMN_PHONE_NUMBER = 4;
// 存储文本格式的数组,从资源文件中获取不同部分的格式信息,用于格式化输出文本
private final String [] TEXT_FORMAT; private final String[] TEXT_FORMAT;
private static final int FORMAT_FOLDER_NAME = 0; // 文本格式数组的索引,用于表示文件夹名称的格式
private static final int FORMAT_NOTE_DATE = 1; private static final int FORMAT_FOLDER_NAME = 0;
private static final int FORMAT_NOTE_CONTENT = 2; // 文本格式数组的索引,用于表示笔记日期的格式
private static final int FORMAT_NOTE_DATE = 1;
// 文本格式数组的索引,用于表示笔记内容的格式
private static final int FORMAT_NOTE_CONTENT = 2;
private Context mContext; private Context mContext;
private String mFileName; private String mFileName;
private String mFileDirectory; private String mFileDirectory;
// 构造函数,从资源中获取文本格式,保存上下文,并初始化文件名和文件目录
public TextExport(Context context) { public TextExport(Context context) {
// 从资源文件中获取用于导出笔记的文本格式数组
TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note); TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note);
mContext = context; mContext = context;
mFileName = ""; mFileName = "";
mFileDirectory = ""; mFileDirectory = "";
} }
// 根据索引获取文本格式,用于格式化输出文本
private String getFormat(int id) { private String getFormat(int id) {
return TEXT_FORMAT[id]; return TEXT_FORMAT[id];
} }
/** // 将指定文件夹导出为文本,接收文件夹的 ID 和输出的打印流
* Export the folder identified by folder id to text
*/
private void exportFolderToText(String folderId, PrintStream ps) { private void exportFolderToText(String folderId, PrintStream ps) {
// Query notes belong to this folder // 使用 ContentResolver 查询属于该文件夹的笔记
Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI, Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI,
NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] { NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[]{
folderId folderId
}, null); }, null);
if (notesCursor != null) { if (notesCursor!= null) {
if (notesCursor.moveToFirst()) { if (notesCursor.moveToFirst()) {
do { do {
// Print note's last modified date // 打印笔记的最后修改日期,使用 DateFormat 格式化日期,并使用 String.format 应用获取到的日期格式
ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
mContext.getString(R.string.format_datetime_mdhm), mContext.getString(R.string.format_datetime_mdhm),
notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
// Query data belong to this note // 获取笔记的 ID
String noteId = notesCursor.getString(NOTE_COLUMN_ID); String noteId = notesCursor.getString(NOTE_COLUMN_ID);
// 调用 exportNoteToText 方法导出该笔记的内容
exportNoteToText(noteId, ps); exportNoteToText(noteId, ps);
} while (notesCursor.moveToNext()); } while (notesCursor.moveToNext());
} }
// 关闭查询笔记的游标,释放资源
notesCursor.close(); notesCursor.close();
} }
} }
/** // 将指定笔记导出为文本,接收笔记的 ID 和输出的打印流
* Export note identified by id to a print stream
*/
private void exportNoteToText(String noteId, PrintStream ps) { private void exportNoteToText(String noteId, PrintStream ps) {
// 使用 ContentResolver 查询属于该笔记的数据
Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI,
DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] { DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[]{
noteId noteId
}, null); }, null);
if (dataCursor != null) { if (dataCursor!= null) {
if (dataCursor.moveToFirst()) { if (dataCursor.moveToFirst()) {
do { do {
// 获取数据的 MIME 类型
String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE); String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE);
if (DataConstants.CALL_NOTE.equals(mimeType)) { if (DataConstants.CALL_NOTE.equals(mimeType)) {
// Print phone number // 如果是通话记录类型的数据
// 获取电话号码
String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER); String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER);
// 获取通话日期
long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE); long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE);
// 获取位置信息
String location = dataCursor.getString(DATA_COLUMN_CONTENT); String location = dataCursor.getString(DATA_COLUMN_CONTENT);
if (!TextUtils.isEmpty(phoneNumber)) { if (!TextUtils.isEmpty(phoneNumber)) {
// 如果电话号码不为空,将其按照笔记内容格式输出
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
phoneNumber)); phoneNumber));
} }
// Print call date // 打印通话日期,使用 DateFormat 格式化日期,并使用 String.format 应用获取到的日期格式
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat
.format(mContext.getString(R.string.format_datetime_mdhm), .format(mContext.getString(R.string.format_datetime_mdhm),
callDate))); callDate)));
// Print call attachment location
if (!TextUtils.isEmpty(location)) { if (!TextUtils.isEmpty(location)) {
// 如果位置信息不为空,将其按照笔记内容格式输出
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
location)); location));
} }
} else if (DataConstants.NOTE.equals(mimeType)) { } else if (DataConstants.NOTE.equals(mimeType)) {
// 如果是普通笔记类型的数据
String content = dataCursor.getString(DATA_COLUMN_CONTENT); String content = dataCursor.getString(DATA_COLUMN_CONTENT);
if (!TextUtils.isEmpty(content)) { if (!TextUtils.isEmpty(content)) {
// 如果笔记内容不为空,将其按照笔记内容格式输出
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
content)); content));
} }
} }
} while (dataCursor.moveToNext()); } while (dataCursor.moveToNext());
} }
// 关闭查询数据的游标,释放资源
dataCursor.close(); dataCursor.close();
} }
// print a line separator between note // 在笔记之间添加分隔符,使用字节数组存储分隔符,包含换行符和可能的其他分隔符
try { try {
ps.write(new byte[] { ps.write(new byte[]{
Character.LINE_SEPARATOR, Character.LETTER_NUMBER Character.LINE_SEPARATOR, Character.LETTER_NUMBER
}); });
} catch (IOException e) { } catch (IOException e) {
// 打印 IO 异常信息到日志
Log.e(TAG, e.toString()); Log.e(TAG, e.toString());
} }
} }
/** // 将数据导出为用户可读的文本文件
* Note will be exported as text which is user readable
*/
public int exportToText() { public int exportToText() {
if (!externalStorageAvailable()) { if (!externalStorageAvailable()) {
// 如果外部存储不可用,记录日志信息
Log.d(TAG, "Media was not mounted"); Log.d(TAG, "Media was not mounted");
// 返回外部存储未挂载的状态
return STATE_SD_CARD_UNMOUONTED; return STATE_SD_CARD_UNMOUONTED;
} }
// 获取用于导出的打印流
PrintStream ps = getExportToTextPrintStream(); PrintStream ps = getExportToTextPrintStream();
if (ps == null) { if (ps == null) {
// 如果获取打印流失败,记录错误日志
Log.e(TAG, "get print stream error"); Log.e(TAG, "get print stream error");
// 返回系统错误状态
return STATE_SYSTEM_ERROR; return STATE_SYSTEM_ERROR;
} }
// First export folder and its notes // 首先导出文件夹及其笔记,使用 ContentResolver 查询满足条件的文件夹
Cursor folderCursor = mContext.getContentResolver().query( Cursor folderCursor = mContext.getContentResolver().query(
Notes.CONTENT_NOTE_URI, Notes.CONTENT_NOTE_URI,
NOTE_PROJECTION, NOTE_PROJECTION,
@ -237,71 +262,87 @@ public class BackupUtils {
+ NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + ") OR " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + ") OR "
+ NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER, null, null); + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER, null, null);
if (folderCursor != null) { if (folderCursor!= null) {
if (folderCursor.moveToFirst()) { if (folderCursor.moveToFirst()) {
do { do {
// Print folder's name // 获取文件夹的名称
String folderName = ""; String folderName = "";
if(folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) { if (folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) {
// 如果是通话记录文件夹,使用资源中的名称
folderName = mContext.getString(R.string.call_record_folder_name); folderName = mContext.getString(R.string.call_record_folder_name);
} else { } else {
// 否则使用笔记的摘要作为文件夹名称
folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET); folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET);
} }
if (!TextUtils.isEmpty(folderName)) { if (!TextUtils.isEmpty(folderName)) {
// 按照文件夹名称格式输出文件夹名称
ps.println(String.format(getFormat(FORMAT_FOLDER_NAME), folderName)); ps.println(String.format(getFormat(FORMAT_FOLDER_NAME), folderName));
} }
// 获取文件夹的 ID
String folderId = folderCursor.getString(NOTE_COLUMN_ID); String folderId = folderCursor.getString(NOTE_COLUMN_ID);
// 调用 exportFolderToText 方法导出该文件夹的笔记
exportFolderToText(folderId, ps); exportFolderToText(folderId, ps);
} while (folderCursor.moveToNext()); } while (folderCursor.moveToNext());
} }
// 关闭查询文件夹的游标,释放资源
folderCursor.close(); folderCursor.close();
} }
// Export notes in root's folder // 导出根文件夹中的笔记,使用 ContentResolver 查询根文件夹中的笔记
Cursor noteCursor = mContext.getContentResolver().query( Cursor noteCursor = mContext.getContentResolver().query(
Notes.CONTENT_NOTE_URI, Notes.CONTENT_NOTE_URI,
NOTE_PROJECTION, NOTE_PROJECTION,
NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID
+ "=0", null, null); + "=0", null, null);
if (noteCursor != null) { if (noteCursor!= null) {
if (noteCursor.moveToFirst()) { if (noteCursor.moveToFirst()) {
do { do {
// 打印笔记的最后修改日期,使用 DateFormat 格式化日期,并使用 String.format 应用获取到的日期格式
ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
mContext.getString(R.string.format_datetime_mdhm), mContext.getString(R.string.format_datetime_mdhm),
noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
// Query data belong to this note // 获取笔记的 ID
String noteId = noteCursor.getString(NOTE_COLUMN_ID); String noteId = noteCursor.getString(NOTE_COLUMN_ID);
// 调用 exportNoteToText 方法导出该笔记的内容
exportNoteToText(noteId, ps); exportNoteToText(noteId, ps);
} while (noteCursor.moveToNext()); } while (noteCursor.moveToNext());
} }
// 关闭查询笔记的游标,释放资源
noteCursor.close(); noteCursor.close();
} }
// 关闭打印流,完成导出操作
ps.close(); ps.close();
// 返回导出成功的状态
return STATE_SUCCESS; return STATE_SUCCESS;
} }
/** // 获取一个指向生成的文本文件的打印流
* Get a print stream pointed to the file {@generateExportedTextFile}
*/
private PrintStream getExportToTextPrintStream() { private PrintStream getExportToTextPrintStream() {
// 生成存储导出数据的文件
File file = generateFileMountedOnSDcard(mContext, R.string.file_path, File file = generateFileMountedOnSDcard(mContext, R.string.file_path,
R.string.file_name_txt_format); R.string.file_name_txt_format);
if (file == null) { if (file == null) {
// 如果文件生成失败,记录错误日志
Log.e(TAG, "create file to exported failed"); Log.e(TAG, "create file to exported failed");
return null; return null;
} }
// 保存文件名
mFileName = file.getName(); mFileName = file.getName();
// 保存文件目录
mFileDirectory = mContext.getString(R.string.file_path); mFileDirectory = mContext.getString(R.string.file_path);
PrintStream ps = null; PrintStream ps = null;
try { try {
// 创建文件输出流
FileOutputStream fos = new FileOutputStream(file); FileOutputStream fos = new FileOutputStream(file);
// 创建打印流,用于向文件输出文本
ps = new PrintStream(fos); ps = new PrintStream(fos);
} catch (FileNotFoundException e) { } catch (FileNotFoundException e) {
// 打印文件未找到异常信息
e.printStackTrace(); e.printStackTrace();
return null; return null;
} catch (NullPointerException e) { } catch (NullPointerException e) {
// 打印空指针异常信息
e.printStackTrace(); e.printStackTrace();
return null; return null;
} }
@ -309,14 +350,15 @@ public class BackupUtils {
} }
} }
/** // 生成存储导入数据的文本文件,接收上下文、文件路径资源 ID 和文件名格式资源 ID
* Generate the text file to store imported data
*/
private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) { private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) {
StringBuilder sb = new StringBuilder(); StringBuilder sb = new StringBuilder();
// 获取外部存储目录
sb.append(Environment.getExternalStorageDirectory()); sb.append(Environment.getExternalStorageDirectory());
// 追加文件路径,从资源中获取
sb.append(context.getString(filePathResId)); sb.append(context.getString(filePathResId));
File filedir = new File(sb.toString()); File filedir = new File(sb.toString());
// 追加文件名,根据文件名格式资源和当前日期生成文件名
sb.append(context.getString( sb.append(context.getString(
fileNameFormatResId, fileNameFormatResId,
DateFormat.format(context.getString(R.string.format_date_ymd), DateFormat.format(context.getString(R.string.format_date_ymd),
@ -325,20 +367,22 @@ public class BackupUtils {
try { try {
if (!filedir.exists()) { if (!filedir.exists()) {
// 如果文件目录不存在,创建文件目录
filedir.mkdir(); filedir.mkdir();
} }
if (!file.exists()) { if (!file.exists()) {
// 如果文件不存在,创建文件
file.createNewFile(); file.createNewFile();
} }
return file; return file;
} catch (SecurityException e) { } catch (SecurityException e) {
// 打印安全异常信息
e.printStackTrace(); e.printStackTrace();
} catch (IOException e) { } catch (IOException e) {
// 打印 IO 异常信息
e.printStackTrace(); e.printStackTrace();
} }
return null; return null;
} }
} }

@ -8,7 +8,7 @@
* http://www.apache.org/licenses/LICENSE-2.0 * http://www.apache.org/licenses/LICENSE-2.0
* *
* Unless required by applicable law or agreed to in writing, software * Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, * distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and * See the License for the specific language governing permissions and
* limitations under the License. * limitations under the License.
@ -36,99 +36,136 @@ import java.util.HashSet;
public class DataUtils { public class DataUtils {
// 日志标签,用于日志输出中标识该类的信息,方便调试和错误追踪
public static final String TAG = "DataUtils"; public static final String TAG = "DataUtils";
// 批量删除笔记的方法,接收一个 ContentResolver 和一个包含笔记 ID 的 HashSet
public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) { public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {
// 如果传入的 ids 集合为 null则打印日志并返回 true表示操作“成功”实际上未执行删除操作
if (ids == null) { if (ids == null) {
Log.d(TAG, "the ids is null"); Log.d(TAG, "the ids is null");
return true; return true;
} }
// 如果 ids 集合中没有元素,则打印日志并返回 true表示操作“成功”实际上未执行删除操作
if (ids.size() == 0) { if (ids.size() == 0) {
Log.d(TAG, "no id is in the hashset"); Log.d(TAG, "no id is in the hashset");
return true; return true;
} }
// 存储 ContentProviderOperation 的列表,用于批量操作
ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>(); ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
// 遍历 ids 集合中的每个 id
for (long id : ids) { for (long id : ids) {
if(id == Notes.ID_ROOT_FOLDER) { // 如果是系统根文件夹的 ID则打印错误日志并跳过该 id不执行删除操作
if (id == Notes.ID_ROOT_FOLDER) {
Log.e(TAG, "Don't delete system folder root"); Log.e(TAG, "Don't delete system folder root");
continue; continue;
} }
// 创建一个删除操作的构建器,用于删除指定 URI 上的笔记
ContentProviderOperation.Builder builder = ContentProviderOperation ContentProviderOperation.Builder builder = ContentProviderOperation
.newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
// 将构建好的操作添加到操作列表中
operationList.add(builder.build()); operationList.add(builder.build());
} }
try { try {
// 执行批量操作,使用 ContentResolver 的 applyBatch 方法
ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
// 检查操作结果,如果结果为空或第一个结果为 null则认为删除操作失败
if (results == null || results.length == 0 || results[0] == null) { if (results == null || results.length == 0 || results[0] == null) {
Log.d(TAG, "delete notes failed, ids:" + ids.toString()); Log.d(TAG, "delete notes failed, ids:" + ids.toString());
return false; return false;
} }
// 操作成功,返回 true
return true; return true;
} catch (RemoteException e) { } catch (RemoteException e) {
// 处理远程操作异常,打印错误信息
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
} catch (OperationApplicationException e) { } catch (OperationApplicationException e) {
// 处理操作应用异常,打印错误信息
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
} }
// 操作失败,返回 false
return false; return false;
} }
// 将笔记移动到另一个文件夹的方法,接收 ContentResolver、笔记 ID、源文件夹 ID 和目标文件夹 ID
public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) { public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {
// 创建 ContentValues 用于存储要更新的值
ContentValues values = new ContentValues(); ContentValues values = new ContentValues();
// 更新笔记的父文件夹 ID
values.put(NoteColumns.PARENT_ID, desFolderId); values.put(NoteColumns.PARENT_ID, desFolderId);
// 存储笔记的原始父文件夹 ID
values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId); values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId);
// 标记为本地已修改
values.put(NoteColumns.LOCAL_MODIFIED, 1); values.put(NoteColumns.LOCAL_MODIFIED, 1);
// 使用 ContentResolver 的 update 方法更新笔记的信息
resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null); resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);
} }
public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids, // 批量将笔记移动到指定文件夹的方法,接收 ContentResolver、笔记 ID 的 HashSet 和目标文件夹 ID
long folderId) { public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids, long folderId) {
// 如果传入的 ids 集合为 null则打印日志并返回 true表示操作“成功”实际上未执行移动操作
if (ids == null) { if (ids == null) {
Log.d(TAG, "the ids is null"); Log.d(TAG, "the ids is null");
return true; return true;
} }
// 存储 ContentProviderOperation 的列表,用于批量操作
ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>(); ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
// 遍历 ids 集合中的每个 id
for (long id : ids) { for (long id : ids) {
// 创建一个更新操作的构建器,用于更新指定 URI 上的笔记
ContentProviderOperation.Builder builder = ContentProviderOperation ContentProviderOperation.Builder builder = ContentProviderOperation
.newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
// 更新笔记的父文件夹 ID
builder.withValue(NoteColumns.PARENT_ID, folderId); builder.withValue(NoteColumns.PARENT_ID, folderId);
// 标记为本地已修改
builder.withValue(NoteColumns.LOCAL_MODIFIED, 1); builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);
// 将构建好的操作添加到操作列表中
operationList.add(builder.build()); operationList.add(builder.build());
} }
try { try {
// 执行批量操作,使用 ContentResolver 的 applyBatch 方法
ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
// 检查操作结果,如果结果为空或第一个结果为 null则认为移动操作失败
if (results == null || results.length == 0 || results[0] == null) { if (results == null || results.length == 0 || results[0] == null) {
Log.d(TAG, "delete notes failed, ids:" + ids.toString()); Log.d(TAG, "delete notes failed, ids:" + ids.toString());
return false; return false;
} }
// 操作成功,返回 true
return true; return true;
} catch (RemoteException e) { } catch (RemoteException e) {
// 处理远程操作异常,打印错误信息
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
} catch (OperationApplicationException e) { } catch (OperationApplicationException e) {
// 处理操作应用异常,打印错误信息
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
} }
// 操作失败,返回 false
return false; return false;
} }
/** // 获取用户创建的文件夹数量的方法,不包括系统文件夹
* Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}}
*/
public static int getUserFolderCount(ContentResolver resolver) { public static int getUserFolderCount(ContentResolver resolver) {
Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI, // 查询满足条件的文件夹数量,使用 COUNT(*) 进行统计
new String[] { "COUNT(*)" }, Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI,
new String[]{"COUNT(*)"},
NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?", NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",
new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)}, new String[]{String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)},
null); null);
int count = 0; int count = 0;
if(cursor != null) { if (cursor!= null) {
if(cursor.moveToFirst()) { if (cursor.moveToFirst()) {
try { try {
// 获取查询结果中的计数值
count = cursor.getInt(0); count = cursor.getInt(0);
} catch (IndexOutOfBoundsException e) { } catch (IndexOutOfBoundsException e) {
// 处理索引越界异常,打印错误信息
Log.e(TAG, "get folder count failed:" + e.toString()); Log.e(TAG, "get folder count failed:" + e.toString());
} finally { } finally {
// 关闭游标,释放资源
cursor.close(); cursor.close();
} }
} }
@ -136,160 +173,202 @@ public class DataUtils {
return count; return count;
} }
// 检查笔记是否在笔记数据库中可见的方法,接收 ContentResolver、笔记 ID 和笔记类型
public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) { public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
// 查询满足条件的笔记,检查笔记是否存在且不在回收站中
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
null, null,
NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER, NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER,
new String [] {String.valueOf(type)}, new String[]{String.valueOf(type)},
null); null);
boolean exist = false; boolean exist = false;
if (cursor != null) { if (cursor!= null) {
// 如果查询结果的行数大于 0则认为笔记存在
if (cursor.getCount() > 0) { if (cursor.getCount() > 0) {
exist = true; exist = true;
} }
// 关闭游标,释放资源
cursor.close(); cursor.close();
} }
return exist; return exist;
} }
// 检查笔记是否存在于笔记数据库中的方法,接收 ContentResolver 和笔记 ID
public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) { public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {
// 查询指定笔记 ID 的笔记是否存在
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
null, null, null, null); null, null, null, null);
boolean exist = false; boolean exist = false;
if (cursor != null) { if (cursor!= null) {
// 如果查询结果的行数大于 0则认为笔记存在
if (cursor.getCount() > 0) { if (cursor.getCount() > 0) {
exist = true; exist = true;
} }
// 关闭游标,释放资源
cursor.close(); cursor.close();
} }
return exist; return exist;
} }
// 检查数据是否存在于数据数据库中的方法,接收 ContentResolver 和数据 ID
public static boolean existInDataDatabase(ContentResolver resolver, long dataId) { public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
// 查询指定数据 ID 的数据是否存在
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId),
null, null, null, null); null, null, null, null);
boolean exist = false; boolean exist = false;
if (cursor != null) { if (cursor!= null) {
// 如果查询结果的行数大于 0则认为数据存在
if (cursor.getCount() > 0) { if (cursor.getCount() > 0) {
exist = true; exist = true;
} }
// 关闭游标,释放资源
cursor.close(); cursor.close();
} }
return exist; return exist;
} }
// 检查文件夹名称是否可见的方法,接收 ContentResolver 和文件夹名称
public static boolean checkVisibleFolderName(ContentResolver resolver, String name) { public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
// 查询满足条件的文件夹,检查是否存在相同名称的非回收站文件夹
Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null, Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null,
NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER +
" AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER +
" AND " + NoteColumns.SNIPPET + "=?", " AND " + NoteColumns.SNIPPET + "=?",
new String[] { name }, null); new String[]{name}, null);
boolean exist = false; boolean exist = false;
if(cursor != null) { if (cursor!= null) {
if(cursor.getCount() > 0) { // 如果查询结果的行数大于 0则认为文件夹存在
if (cursor.getCount() > 0) {
exist = true; exist = true;
} }
// 关闭游标,释放资源
cursor.close(); cursor.close();
} }
return exist; return exist;
} }
// 获取文件夹中笔记的小部件信息,接收 ContentResolver 和文件夹 ID
public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) { public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) {
// 查询满足条件的笔记的小部件信息
Cursor c = resolver.query(Notes.CONTENT_NOTE_URI, Cursor c = resolver.query(Notes.CONTENT_NOTE_URI,
new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE }, new String[]{NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE},
NoteColumns.PARENT_ID + "=?", NoteColumns.PARENT_ID + "=?",
new String[] { String.valueOf(folderId) }, new String[]{String.valueOf(folderId)},
null); null);
HashSet<AppWidgetAttribute> set = null; HashSet<AppWidgetAttribute> set = null;
if (c != null) { if (c!= null) {
if (c.moveToFirst()) { if (c.moveToFirst()) {
set = new HashSet<AppWidgetAttribute>(); set = new HashSet<AppWidgetAttribute>();
do { do {
try { try {
// 创建 AppWidgetAttribute 对象存储小部件信息
AppWidgetAttribute widget = new AppWidgetAttribute(); AppWidgetAttribute widget = new AppWidgetAttribute();
// 获取小部件 ID
widget.widgetId = c.getInt(0); widget.widgetId = c.getInt(0);
// 获取小部件类型
widget.widgetType = c.getInt(1); widget.widgetType = c.getInt(1);
// 将小部件信息添加到集合中
set.add(widget); set.add(widget);
} catch (IndexOutOfBoundsException e) { } catch (IndexOutOfBoundsException e) {
// 处理索引越界异常,打印错误信息
Log.e(TAG, e.toString()); Log.e(TAG, e.toString());
} }
} while (c.moveToNext()); } while (c.moveToNext());
} }
// 关闭游标,释放资源
c.close(); c.close();
} }
return set; return set;
} }
// 根据笔记 ID 获取通话号码的方法,接收 ContentResolver 和笔记 ID
public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) { public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {
// 查询满足条件的通话号码
Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
new String [] { CallNote.PHONE_NUMBER }, new String[]{CallNote.PHONE_NUMBER},
CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?", CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?",
new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE }, new String[]{String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE},
null); null);
if (cursor != null && cursor.moveToFirst()) { if (cursor!= null && cursor.moveToFirst()) {
try { try {
// 获取通话号码
return cursor.getString(0); return cursor.getString(0);
} catch (IndexOutOfBoundsException e) { } catch (IndexOutOfBoundsException e) {
// 处理索引越界异常,打印错误信息
Log.e(TAG, "Get call number fails " + e.toString()); Log.e(TAG, "Get call number fails " + e.toString());
} finally { } finally {
// 关闭游标,释放资源
cursor.close(); cursor.close();
} }
} }
return ""; return "";
} }
// 根据电话号码和通话日期获取笔记 ID 的方法,接收 ContentResolver、电话号码和通话日期
public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) { public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {
// 查询满足条件的笔记 ID
Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
new String [] { CallNote.NOTE_ID }, new String[]{CallNote.NOTE_ID},
CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL(" CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL("
+ CallNote.PHONE_NUMBER + ",?)", + CallNote.PHONE_NUMBER + ",?)",
new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber }, new String[]{String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber},
null); null);
if (cursor != null) { if (cursor!= null) {
if (cursor.moveToFirst()) { if (cursor.moveToFirst()) {
try { try {
// 获取笔记 ID
return cursor.getLong(0); return cursor.getLong(0);
} catch (IndexOutOfBoundsException e) { } catch (IndexOutOfBoundsException e) {
// 处理索引越界异常,打印错误信息
Log.e(TAG, "Get call note id fails " + e.toString()); Log.e(TAG, "Get call note id fails " + e.toString());
} }
} }
// 关闭游标,释放资源
cursor.close(); cursor.close();
} }
return 0; return 0;
} }
// 根据笔记 ID 获取摘要的方法,接收 ContentResolver 和笔记 ID
public static String getSnippetById(ContentResolver resolver, long noteId) { public static String getSnippetById(ContentResolver resolver, long noteId) {
// 查询满足条件的笔记摘要
Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI,
new String [] { NoteColumns.SNIPPET }, new String[]{NoteColumns.SNIPPET},
NoteColumns.ID + "=?", NoteColumns.ID + "=?",
new String [] { String.valueOf(noteId)}, new String[]{String.valueOf(noteId)},
null); null);
if (cursor != null) { if (cursor!= null) {
String snippet = ""; String snippet = "";
if (cursor.moveToFirst()) { if (cursor.moveToFirst()) {
// 获取笔记摘要
snippet = cursor.getString(0); snippet = cursor.getString(0);
} }
// 关闭游标,释放资源
cursor.close(); cursor.close();
return snippet; return snippet;
} }
// 如果未找到笔记,抛出异常
throw new IllegalArgumentException("Note is not found with id: " + noteId); throw new IllegalArgumentException("Note is not found with id: " + noteId);
} }
// 格式化摘要的方法,接收一个字符串
public static String getFormattedSnippet(String snippet) { public static String getFormattedSnippet(String snippet) {
if (snippet != null) { if (snippet!= null) {
// 去除字符串两端的空格
snippet = snippet.trim(); snippet = snippet.trim();
int index = snippet.indexOf('\n'); int index = snippet.indexOf('\n');
if (index != -1) { if (index!= -1) {
// 截取到第一个换行符之前的内容
snippet = snippet.substring(0, index); snippet = snippet.substring(0, index);
} }
} }
return snippet; return snippet;
} }
} }

@ -24,158 +24,250 @@ import net.micode.notes.ui.NotesPreferenceActivity;
public class ResourceParser { public class ResourceParser {
public static final int YELLOW = 0; // 定义不同颜色的枚举值,用于表示笔记的不同背景颜色选项
public static final int BLUE = 1; // 黄色背景
public static final int WHITE = 2; public static final int YELLOW = 0;
public static final int GREEN = 3; // 蓝色背景
public static final int RED = 4; public static final int BLUE = 1;
// 白色背景
public static final int WHITE = 2;
// 绿色背景
public static final int GREEN = 3;
// 红色背景
public static final int RED = 4;
// 默认的背景颜色,设置为黄色
public static final int BG_DEFAULT_COLOR = YELLOW; public static final int BG_DEFAULT_COLOR = YELLOW;
public static final int TEXT_SMALL = 0; // 定义不同的文本大小枚举值,用于表示笔记的不同文本大小选项
public static final int TEXT_MEDIUM = 1; // 小字体
public static final int TEXT_LARGE = 2; public static final int TEXT_SMALL = 0;
public static final int TEXT_SUPER = 3; // 中等字体
public static final int TEXT_MEDIUM = 1;
// 大字体
public static final int TEXT_LARGE = 2;
// 超大字体
public static final int TEXT_SUPER = 3;
// 默认的字体大小,设置为中等字体
public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM; public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM;
public static class NoteBgResources { public static class NoteBgResources {
private final static int [] BG_EDIT_RESOURCES = new int [] { // 存储编辑笔记时不同颜色背景的资源 ID 数组
R.drawable.edit_yellow, // 数组元素分别对应 YELLOW、BLUE、WHITE、GREEN、RED 颜色的背景资源
R.drawable.edit_blue, private final static int[] BG_EDIT_RESOURCES = new int[]{
R.drawable.edit_white, R.drawable.edit_yellow,
R.drawable.edit_green, R.drawable.edit_blue,
R.drawable.edit_red R.drawable.edit_white,
R.drawable.edit_green,
R.drawable.edit_red
}; };
private final static int [] BG_EDIT_TITLE_RESOURCES = new int [] { // 存储编辑笔记标题时不同颜色背景的资源 ID 数组
R.drawable.edit_title_yellow, // 数组元素分别对应 YELLOW、BLUE、WHITE、GREEN、RED 颜色的标题背景资源
R.drawable.edit_title_blue, private final static int[] BG_EDIT_TITLE_RESOURCES = new int[]{
R.drawable.edit_title_white, R.drawable.edit_title_yellow,
R.drawable.edit_title_green, R.drawable.edit_title_blue,
R.drawable.edit_title_red R.drawable.edit_title_white,
R.drawable.edit_title_green,
R.drawable.edit_title_red
}; };
/**
* ID
* @param id YELLOWBLUEWHITEGREEN RED
* @return ID
*/
public static int getNoteBgResource(int id) { public static int getNoteBgResource(int id) {
return BG_EDIT_RESOURCES[id]; return BG_EDIT_RESOURCES[id];
} }
/**
* ID
* @param id YELLOWBLUEWHITEGREEN RED
* @return ID
*/
public static int getNoteTitleBgResource(int id) { public static int getNoteTitleBgResource(int id) {
return BG_EDIT_TITLE_RESOURCES[id]; return BG_EDIT_TITLE_RESOURCES[id];
} }
} }
/**
* ID
* 使 NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY
* NoteBgResources 使 BG_DEFAULT_COLOR
* @param context 访
* @return YELLOWBLUEWHITEGREEN RED
*/
public static int getDefaultBgId(Context context) { public static int getDefaultBgId(Context context) {
// 从默认的共享偏好中获取是否设置了背景颜色的偏好设置
if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean( if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean(
NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) { NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) {
// 生成一个 0 到 NoteBgResources.BG_EDIT_RESOURCES 长度之间的随机数作为背景颜色索引
return (int) (Math.random() * NoteBgResources.BG_EDIT_RESOURCES.length); return (int) (Math.random() * NoteBgResources.BG_EDIT_RESOURCES.length);
} else { } else {
// 使用默认的背景颜色
return BG_DEFAULT_COLOR; return BG_DEFAULT_COLOR;
} }
} }
public static class NoteItemBgResources { public static class NoteItemBgResources {
private final static int [] BG_FIRST_RESOURCES = new int [] { // 存储笔记列表中第一个元素不同颜色背景的资源 ID 数组
R.drawable.list_yellow_up, // 数组元素分别对应 YELLOW、BLUE、WHITE、GREEN、RED 颜色的第一个元素背景资源
R.drawable.list_blue_up, private final static int[] BG_FIRST_RESOURCES = new int[]{
R.drawable.list_white_up, R.drawable.list_yellow_up,
R.drawable.list_green_up, R.drawable.list_blue_up,
R.drawable.list_red_up R.drawable.list_white_up,
R.drawable.list_green_up,
R.drawable.list_red_up
}; };
private final static int [] BG_NORMAL_RESOURCES = new int [] { // 存储笔记列表中普通元素不同颜色背景的资源 ID 数组
R.drawable.list_yellow_middle, // 数组元素分别对应 YELLOW、BLUE、WHITE、GREEN、RED 颜色的普通元素背景资源
R.drawable.list_blue_middle, private final static int[] BG_NORMAL_RESOURCES = new int[]{
R.drawable.list_white_middle, R.drawable.list_yellow_middle,
R.drawable.list_green_middle, R.drawable.list_blue_middle,
R.drawable.list_red_middle R.drawable.list_white_middle,
R.drawable.list_green_middle,
R.drawable.list_red_middle
}; };
private final static int [] BG_LAST_RESOURCES = new int [] { // 存储笔记列表中最后一个元素不同颜色背景的资源 ID 数组
R.drawable.list_yellow_down, // 数组元素分别对应 YELLOW、BLUE、WHITE、GREEN、RED 颜色的最后一个元素背景资源
R.drawable.list_blue_down, private final static int[] BG_LAST_RESOURCES = new int[]{
R.drawable.list_white_down, R.drawable.list_yellow_down,
R.drawable.list_green_down, R.drawable.list_blue_down,
R.drawable.list_red_down, R.drawable.list_white_down,
R.drawable.list_green_down,
R.drawable.list_red_down,
}; };
private final static int [] BG_SINGLE_RESOURCES = new int [] { // 存储单个笔记不同颜色背景的资源 ID 数组
R.drawable.list_yellow_single, // 数组元素分别对应 YELLOW、BLUE、WHITE、GREEN、RED 颜色的单个笔记背景资源
R.drawable.list_blue_single, private final static int[] BG_SINGLE_RESOURCES = new int[]{
R.drawable.list_white_single, R.drawable.list_yellow_single,
R.drawable.list_green_single, R.drawable.list_blue_single,
R.drawable.list_red_single R.drawable.list_white_single,
R.drawable.list_green_single,
R.drawable.list_red_single
}; };
/**
* ID
* @param id YELLOWBLUEWHITEGREEN RED
* @return ID
*/
public static int getNoteBgFirstRes(int id) { public static int getNoteBgFirstRes(int id) {
return BG_FIRST_RESOURCES[id]; return BG_FIRST_RESOURCES[id];
} }
/**
* ID
* @param id YELLOWBLUEWHITEGREEN RED
* @return ID
*/
public static int getNoteBgLastRes(int id) { public static int getNoteBgLastRes(int id) {
return BG_LAST_RESOURCES[id]; return BG_LAST_RESOURCES[id];
} }
/**
* ID
* @param id YELLOWBLUEWHITEGREEN RED
* @return ID
*/
public static int getNoteBgSingleRes(int id) { public static int getNoteBgSingleRes(int id) {
return BG_SINGLE_RESOURCES[id]; return BG_SINGLE_RESOURCES[id];
} }
/**
* ID
* @param id YELLOWBLUEWHITEGREEN RED
* @return ID
*/
public static int getNoteBgNormalRes(int id) { public static int getNoteBgNormalRes(int id) {
return BG_NORMAL_RESOURCES[id]; return BG_NORMAL_RESOURCES[id];
} }
/**
* ID
* @return ID R.drawable.list_folder
*/
public static int getFolderBgRes() { public static int getFolderBgRes() {
return R.drawable.list_folder; return R.drawable.list_folder;
} }
} }
public static class WidgetBgResources { public static class WidgetBgResources {
private final static int [] BG_2X_RESOURCES = new int [] { // 存储 2x 部件不同颜色背景的资源 ID 数组
R.drawable.widget_2x_yellow, // 数组元素分别对应 YELLOW、BLUE、WHITE、GREEN、RED 颜色的 2x 部件背景资源
R.drawable.widget_2x_blue, private final static int[] BG_2X_RESOURCES = new int[]{
R.drawable.widget_2x_white, R.drawable.widget_2x_yellow,
R.drawable.widget_2x_green, R.drawable.widget_2x_blue,
R.drawable.widget_2x_red, R.drawable.widget_2x_white,
R.drawable.widget_2x_green,
R.drawable.widget_2x_red,
}; };
/**
* 2x ID
* @param id YELLOWBLUEWHITEGREEN RED
* @return 2x ID
*/
public static int getWidget2xBgResource(int id) { public static int getWidget2xBgResource(int id) {
return BG_2X_RESOURCES[id]; return BG_2X_RESOURCES[id];
} }
private final static int [] BG_4X_RESOURCES = new int [] { // 存储 4x 部件不同颜色背景的资源 ID 数组
R.drawable.widget_4x_yellow, // 数组元素分别对应 YELLOW、BLUE、WHITE、GREEN、RED 颜色的 4x 部件背景资源
R.drawable.widget_4x_blue, private final static int[] BG_4X_RESOURCES = new int[]{
R.drawable.widget_4x_white, R.drawable.widget_4x_yellow,
R.drawable.widget_4x_green, R.drawable.widget_4x_blue,
R.drawable.widget_4x_red R.drawable.widget_4x_white,
R.drawable.widget_4x_green,
R.drawable.widget_4x_red
}; };
/**
* 4x ID
* @param id YELLOWBLUEWHITEGREEN RED
* @return 4x ID
*/
public static int getWidget4xBgResource(int id) { public static int getWidget4xBgResource(int id) {
return BG_4X_RESOURCES[id]; return BG_4X_RESOURCES[id];
} }
} }
public static class TextAppearanceResources { public static class TextAppearanceResources {
private final static int [] TEXTAPPEARANCE_RESOURCES = new int [] { // 存储不同文本大小的资源 ID 数组
R.style.TextAppearanceNormal, // 数组元素分别对应 TEXT_SMALL、TEXT_MEDIUM、TEXT_LARGE、TEXT_SUPER 字体大小的资源
R.style.TextAppearanceMedium, private final static int[] TEXTAPPEARANCE_RESOURCES = new int[]{
R.style.TextAppearanceLarge, R.style.TextAppearanceNormal,
R.style.TextAppearanceSuper R.style.TextAppearanceMedium,
R.style.TextAppearanceLarge,
R.style.TextAppearanceSuper
}; };
/**
* ID
* TEXTAPPEARANCE_RESOURCES BG_DEFAULT_FONT_SIZE
* @param id TEXT_SMALLTEXT_MEDIUMTEXT_LARGE TEXT_SUPER
* @return ID
*/
public static int getTexAppearanceResource(int id) { public static int getTexAppearanceResource(int id) {
/** // 检查传入的文本大小索引是否超出资源数组长度
* HACKME: Fix bug of store the resource id in shared preference.
* The id may larger than the length of resources, in this case,
* return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE}
*/
if (id >= TEXTAPPEARANCE_RESOURCES.length) { if (id >= TEXTAPPEARANCE_RESOURCES.length) {
// 超出范围时使用默认字体大小
return BG_DEFAULT_FONT_SIZE; return BG_DEFAULT_FONT_SIZE;
} }
return TEXTAPPEARANCE_RESOURCES[id]; return TEXTAPPEARANCE_RESOURCES[id];
} }
/**
*
* @return TEXTAPPEARANCE_RESOURCES
*/
public static int getResourcesSize() { public static int getResourcesSize() {
return TEXTAPPEARANCE_RESOURCES.length; return TEXTAPPEARANCE_RESOURCES.length;
} }
} }
} }

@ -9,7 +9,7 @@
* *
* Unless required by applicable law or agreed to in writing, software * Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, * distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * WITHOUT WARRANTIES OR CONDITIONS OF ANY kind, either express or implied.
* See the License for the specific language governing permissions and * See the License for the specific language governing permissions and
* limitations under the License. * limitations under the License.
*/ */
@ -41,101 +41,149 @@ import java.io.IOException;
public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener { public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
// 存储笔记的唯一标识符
private long mNoteId; private long mNoteId;
// 存储笔记的摘要信息
private String mSnippet; private String mSnippet;
// 摘要信息的最大预览长度
private static final int SNIPPET_PREW_MAX_LEN = 60; private static final int SNIPPET_PREW_MAX_LEN = 60;
// 用于播放闹钟声音的媒体播放器
MediaPlayer mPlayer; MediaPlayer mPlayer;
@Override @Override
protected void onCreate(Bundle savedInstanceState) { protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState); super.onCreate(savedInstanceState);
// 请求窗口特性,去除标题栏
requestWindowFeature(Window.FEATURE_NO_TITLE); requestWindowFeature(Window.FEATURE_NO_TITLE);
// 获取当前窗口对象
final Window win = getWindow(); final Window win = getWindow();
// 给窗口添加标志,使窗口在锁屏时也能显示
win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED); win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
// 检查屏幕是否亮屏
if (!isScreenOn()) { if (!isScreenOn()) {
// 如果屏幕未亮屏,添加以下标志:
// FLAG_KEEP_SCREEN_ON保持屏幕亮屏
// FLAG_TURN_SCREEN_ON点亮屏幕
// FLAG_ALLOW_LOCK_WHILE_SCREEN_ON允许在屏幕亮屏时进行锁定操作
// FLAG_LAYOUT_INSET_DECOR确保窗口布局能正确显示在装饰区域内
win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
| WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
| WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
| WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR); | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
} }
// 获取启动该活动的意图
Intent intent = getIntent(); Intent intent = getIntent();
try { try {
// 从意图的数据中获取笔记的唯一标识符
mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1)); mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1));
// 根据笔记的唯一标识符获取摘要信息
mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId); mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId);
mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0, // 如果摘要信息的长度超过最大预览长度,截取摘要并添加额外信息
mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN? mSnippet.substring(0,
SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info) SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info)
: mSnippet; : mSnippet;
} catch (IllegalArgumentException e) { } catch (IllegalArgumentException e) {
// 打印异常信息
e.printStackTrace(); e.printStackTrace();
return; return;
} }
// 创建新的媒体播放器实例
mPlayer = new MediaPlayer(); mPlayer = new MediaPlayer();
// 检查笔记是否存在于笔记数据库中且类型为笔记类型
if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) { if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
// 显示操作对话框
showActionDialog(); showActionDialog();
// 播放闹钟声音
playAlarmSound(); playAlarmSound();
} else { } else {
// 若笔记不存在,结束该活动
finish(); finish();
} }
} }
// 检查屏幕是否亮屏的方法
private boolean isScreenOn() { private boolean isScreenOn() {
// 获取电源管理器服务
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
// 使用电源管理器检查屏幕是否亮屏
return pm.isScreenOn(); return pm.isScreenOn();
} }
// 播放闹钟声音的方法
private void playAlarmSound() { private void playAlarmSound() {
// 获取默认的闹钟铃声 URI
Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM); Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);
// 获取系统设置中静音模式影响的流类型
int silentModeStreams = Settings.System.getInt(getContentResolver(), int silentModeStreams = Settings.System.getInt(getContentResolver(),
Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0); Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);
if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) { // 如果静音模式影响的流包含闹钟流
if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM))!= 0) {
// 将媒体播放器的音频流类型设置为静音模式影响的流类型
mPlayer.setAudioStreamType(silentModeStreams); mPlayer.setAudioStreamType(silentModeStreams);
} else { } else {
// 将媒体播放器的音频流类型设置为闹钟流类型
mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM); mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);
} }
try { try {
// 设置媒体播放器的数据源为获取到的闹钟铃声 URI
mPlayer.setDataSource(this, url); mPlayer.setDataSource(this, url);
// 准备播放媒体播放器
mPlayer.prepare(); mPlayer.prepare();
// 设置为循环播放
mPlayer.setLooping(true); mPlayer.setLooping(true);
// 开始播放
mPlayer.start(); mPlayer.start();
} catch (IllegalArgumentException e) { } catch (IllegalArgumentException e) {
// TODO Auto-generated catch block // 打印异常信息
e.printStackTrace(); e.printStackTrace();
} catch (SecurityException e) { } catch (SecurityException e) {
// TODO Auto-generated catch block // 打印异常信息
e.printStackTrace(); e.printStackTrace();
} catch (IllegalStateException e) { } catch (IllegalStateException e) {
// TODO Auto-generated catch block // 打印异常信息
e.printStackTrace(); e.printStackTrace();
} catch (IOException e) { } catch (IOException e) {
// TODO Auto-generated catch block // 打印异常信息
e.printStackTrace(); e.printStackTrace();
} }
} }
// 显示操作对话框的方法
private void showActionDialog() { private void showActionDialog() {
// 创建一个新的 AlertDialog 构建器
AlertDialog.Builder dialog = new AlertDialog.Builder(this); AlertDialog.Builder dialog = new AlertDialog.Builder(this);
// 设置对话框的标题为应用名称
dialog.setTitle(R.string.app_name); dialog.setTitle(R.string.app_name);
// 设置对话框的消息为笔记的摘要信息
dialog.setMessage(mSnippet); dialog.setMessage(mSnippet);
// 设置对话框的确认按钮及点击事件监听器
dialog.setPositiveButton(R.string.notealert_ok, this); dialog.setPositiveButton(R.string.notealert_ok, this);
// 如果屏幕亮屏,设置对话框的取消按钮及点击事件监听器
if (isScreenOn()) { if (isScreenOn()) {
dialog.setNegativeButton(R.string.notealert_enter, this); dialog.setNegativeButton(R.string.notealert_enter, this);
} }
// 显示对话框并设置对话框关闭监听器
dialog.show().setOnDismissListener(this); dialog.show().setOnDismissListener(this);
} }
// 点击事件处理方法
public void onClick(DialogInterface dialog, int which) { public void onClick(DialogInterface dialog, int which) {
switch (which) { switch (which) {
case DialogInterface.BUTTON_NEGATIVE: case DialogInterface.BUTTON_NEGATIVE:
// 当点击取消按钮时,创建新的意图,跳转到笔记编辑活动
Intent intent = new Intent(this, NoteEditActivity.class); Intent intent = new Intent(this, NoteEditActivity.class);
// 设置意图的动作
intent.setAction(Intent.ACTION_VIEW); intent.setAction(Intent.ACTION_VIEW);
// 将笔记的唯一标识符作为额外信息添加到意图中
intent.putExtra(Intent.EXTRA_UID, mNoteId); intent.putExtra(Intent.EXTRA_UID, mNoteId);
// 启动笔记编辑活动
startActivity(intent); startActivity(intent);
break; break;
default: default:
@ -143,16 +191,23 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
} }
} }
// 对话框关闭事件处理方法
public void onDismiss(DialogInterface dialog) { public void onDismiss(DialogInterface dialog) {
// 停止闹钟声音
stopAlarmSound(); stopAlarmSound();
// 结束该活动
finish(); finish();
} }
// 停止闹钟声音的方法
private void stopAlarmSound() { private void stopAlarmSound() {
if (mPlayer != null) { if (mPlayer!= null) {
// 停止媒体播放器
mPlayer.stop(); mPlayer.stop();
// 释放媒体播放器资源
mPlayer.release(); mPlayer.release();
// 将媒体播放器置为 null
mPlayer = null; mPlayer = null;
} }
} }
} }

@ -1,19 +1,4 @@
/* // 包声明,表明该类属于 net.micode.notes.ui 包
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.micode.notes.ui; package net.micode.notes.ui;
import java.text.DateFormatSymbols; import java.text.DateFormatSymbols;
@ -28,86 +13,128 @@ import android.view.View;
import android.widget.FrameLayout; import android.widget.FrameLayout;
import android.widget.NumberPicker; import android.widget.NumberPicker;
// 定义 DateTimePicker 类,继承自 FrameLayout可作为一个日期时间选择器
public class DateTimePicker extends FrameLayout { public class DateTimePicker extends FrameLayout {
// 定义默认的启用状态,当为 true 时表示该日期时间选择器处于启用状态
private static final boolean DEFAULT_ENABLE_STATE = true; private static final boolean DEFAULT_ENABLE_STATE = true;
// 半天包含的小时数,即 12 小时
private static final int HOURS_IN_HALF_DAY = 12; private static final int HOURS_IN_HALF_DAY = 12;
// 一天包含的小时数,即 24 小时
private static final int HOURS_IN_ALL_DAY = 24; private static final int HOURS_IN_ALL_DAY = 24;
// 一周包含的天数,即 7 天
private static final int DAYS_IN_ALL_WEEK = 7; private static final int DAYS_IN_ALL_WEEK = 7;
// 日期选择器的最小允许值,用于设置 NumberPicker 的最小范围
private static final int DATE_SPINNER_MIN_VAL = 0; private static final int DATE_SPINNER_MIN_VAL = 0;
// 日期选择器的最大允许值,用于设置 NumberPicker 的最大范围
private static final int DATE_SPINNER_MAX_VAL = DAYS_IN_ALL_WEEK - 1; private static final int DATE_SPINNER_MAX_VAL = DAYS_IN_ALL_WEEK - 1;
// 24 小时制下小时选择器的最小允许值
private static final int HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW = 0; private static final int HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW = 0;
// 24 小时制下小时选择器的最大允许值
private static final int HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW = 23; private static final int HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW = 23;
// 12 小时制下小时选择器的最小允许值
private static final int HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW = 1; private static final int HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW = 1;
// 12 小时制下小时选择器的最大允许值
private static final int HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW = 12; private static final int HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW = 12;
// 分钟选择器的最小允许值
private static final int MINUT_SPINNER_MIN_VAL = 0; private static final int MINUT_SPINNER_MIN_VAL = 0;
// 分钟选择器的最大允许值
private static final int MINUT_SPINNER_MAX_VAL = 59; private static final int MINUT_SPINNER_MAX_VAL = 59;
// 上午/下午选择器的最小允许值,通常 0 表示上午AM
private static final int AMPM_SPINNER_MIN_VAL = 0; private static final int AMPM_SPINNER_MIN_VAL = 0;
// 上午/下午选择器的最大允许值,通常 1 表示下午PM
private static final int AMPM_SPINNER_MAX_VAL = 1; private static final int AMPM_SPINNER_MAX_VAL = 1;
// 用于选择日期的 NumberPicker 组件
private final NumberPicker mDateSpinner; private final NumberPicker mDateSpinner;
// 用于选择小时的 NumberPicker 组件
private final NumberPicker mHourSpinner; private final NumberPicker mHourSpinner;
// 用于选择分钟的 NumberPicker 组件
private final NumberPicker mMinuteSpinner; private final NumberPicker mMinuteSpinner;
// 用于选择上午/下午的 NumberPicker 组件
private final NumberPicker mAmPmSpinner; private final NumberPicker mAmPmSpinner;
// 存储日期和时间信息的 Calendar 对象,用于对日期和时间进行操作和存储
private Calendar mDate; private Calendar mDate;
// 存储日期显示的字符串数组,用于存储一周内的日期显示信息
private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK]; private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK];
// 表示当前时间是否为上午true 表示上午false 表示下午
private boolean mIsAm; private boolean mIsAm;
// 表示是否使用 24 小时制true 表示使用 24 小时制false 表示使用 12 小时制
private boolean mIs24HourView; private boolean mIs24HourView;
// 表示该日期时间选择器是否处于启用状态,默认为启用
private boolean mIsEnabled = DEFAULT_ENABLE_STATE; private boolean mIsEnabled = DEFAULT_ENABLE_STATE;
// 表示是否正在进行初始化操作,用于控制初始化过程中的一些逻辑
private boolean mInitialising; private boolean mInitialising;
// 日期时间更改的监听器,用于监听日期时间发生变化的事件
private OnDateTimeChangedListener mOnDateTimeChangedListener; private OnDateTimeChangedListener mOnDateTimeChangedListener;
// 日期选择器的监听器,当日期选择器的值发生变化时触发
private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() { private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() {
@Override @Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) { public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
// 当日期选择器的值发生变化时,根据新旧值的差值更新日期
mDate.add(Calendar.DAY_OF_YEAR, newVal - oldVal); mDate.add(Calendar.DAY_OF_YEAR, newVal - oldVal);
// 更新日期显示相关的控件
updateDateControl(); updateDateControl();
// 调用日期时间更改的回调方法
onDateTimeChanged(); onDateTimeChanged();
} }
}; };
// 小时选择器的监听器,当小时选择器的值发生变化时触发
private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() { private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() {
@Override @Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) { public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
// 标记日期是否发生了变化
boolean isDateChanged = false; boolean isDateChanged = false;
// 获取一个 Calendar 实例,用于临时存储和计算日期的变化
Calendar cal = Calendar.getInstance(); Calendar cal = Calendar.getInstance();
if (!mIs24HourView) { if (!mIs24HourView) {
// 在 12 小时制下
if (!mIsAm && oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY) { if (!mIsAm && oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY) {
// 如果从上午的最后一小时11 点切换到下午的第一小时12 点),日期加一天
cal.setTimeInMillis(mDate.getTimeInMillis()); cal.setTimeInMillis(mDate.getTimeInMillis());
cal.add(Calendar.DAY_OF_YEAR, 1); cal.add(Calendar.DAY_OF_YEAR, 1);
isDateChanged = true; isDateChanged = true;
} else if (mIsAm && oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) { } else if (mIsAm && oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
// 如果从下午的第一小时12 点切换到上午的最后一小时11 点),日期减一天
cal.setTimeInMillis(mDate.getTimeInMillis()); cal.setTimeInMillis(mDate.getTimeInMillis());
cal.add(Calendar.DAY_OF_YEAR, -1); cal.add(Calendar.DAY_OF_YEAR, -1);
isDateChanged = true; isDateChanged = true;
} }
if (oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY || if (oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY ||
oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) { oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
mIsAm = !mIsAm; // 切换上午/下午标志
mIsAm =!mIsAm;
// 更新上午/下午选择器的显示
updateAmPmControl(); updateAmPmControl();
} }
} else { } else {
// 在 24 小时制下
if (oldVal == HOURS_IN_ALL_DAY - 1 && newVal == 0) { if (oldVal == HOURS_IN_ALL_DAY - 1 && newVal == 0) {
// 如果从 23 点切换到 0 点,日期加一天
cal.setTimeInMillis(mDate.getTimeInMillis()); cal.setTimeInMillis(mDate.getTimeInMillis());
cal.add(Calendar.DAY_OF_YEAR, 1); cal.add(Calendar.DAY_OF_YEAR, 1);
isDateChanged = true; isDateChanged = true;
} else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) { } else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) {
// 如果从 0 点切换到 23 点,日期减一天
cal.setTimeInMillis(mDate.getTimeInMillis()); cal.setTimeInMillis(mDate.getTimeInMillis());
cal.add(Calendar.DAY_OF_YEAR, -1); cal.add(Calendar.DAY_OF_YEAR, -1);
isDateChanged = true; isDateChanged = true;
} }
} }
int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY); // 计算新的小时值,考虑 12 小时制和 24 小时制的转换
int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm? 0 : HOURS_IN_HALF_DAY);
// 更新 Calendar 对象的小时值
mDate.set(Calendar.HOUR_OF_DAY, newHour); mDate.set(Calendar.HOUR_OF_DAY, newHour);
// 调用日期时间更改的回调方法
onDateTimeChanged(); onDateTimeChanged();
if (isDateChanged) { if (isDateChanged) {
// 如果日期发生了变化,更新年、月、日
setCurrentYear(cal.get(Calendar.YEAR)); setCurrentYear(cal.get(Calendar.YEAR));
setCurrentMonth(cal.get(Calendar.MONTH)); setCurrentMonth(cal.get(Calendar.MONTH));
setCurrentDay(cal.get(Calendar.DAY_OF_MONTH)); setCurrentDay(cal.get(Calendar.DAY_OF_MONTH));
@ -115,105 +142,159 @@ public class DateTimePicker extends FrameLayout {
} }
}; };
// 分钟选择器的监听器,当分钟选择器的值发生变化时触发
private NumberPicker.OnValueChangeListener mOnMinuteChangedListener = new NumberPicker.OnValueChangeListener() { private NumberPicker.OnValueChangeListener mOnMinuteChangedListener = new NumberPicker.OnValueChangeListener() {
@Override @Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) { public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
// 获取分钟选择器的最小和最大值
int minValue = mMinuteSpinner.getMinValue(); int minValue = mMinuteSpinner.getMinValue();
int maxValue = mMinuteSpinner.getMaxValue(); int maxValue = mMinuteSpinner.getMaxValue();
int offset = 0; int offset = 0;
if (oldVal == maxValue && newVal == minValue) { if (oldVal == maxValue && newVal == minValue) {
// 如果分钟从最大值变为最小值,需要增加一小时
offset += 1; offset += 1;
} else if (oldVal == minValue && newVal == maxValue) { } else if (oldVal == minValue && newVal == maxValue) {
// 如果分钟从最小值变为最大值,需要减少一小时
offset -= 1; offset -= 1;
} }
if (offset != 0) { if (offset!= 0) {
// 根据分钟的变化更新日期的小时
mDate.add(Calendar.HOUR_OF_DAY, offset); mDate.add(Calendar.HOUR_OF_DAY, offset);
// 更新小时选择器的值
mHourSpinner.setValue(getCurrentHour()); mHourSpinner.setValue(getCurrentHour());
// 更新日期显示相关的控件
updateDateControl(); updateDateControl();
// 获取当前小时
int newHour = getCurrentHourOfDay(); int newHour = getCurrentHourOfDay();
if (newHour >= HOURS_IN_HALF_DAY) { if (newHour >= HOURS_IN_HALF_DAY) {
// 如果超过 12 点,标记为下午
mIsAm = false; mIsAm = false;
// 更新上午/下午选择器的显示
updateAmPmControl(); updateAmPmControl();
} else { } else {
// 否则标记为上午
mIsAm = true; mIsAm = true;
updateAmPmControl(); updateAmPmControl();
} }
} }
// 更新 Calendar 对象的分钟值
mDate.set(Calendar.MINUTE, newVal); mDate.set(Calendar.MINUTE, newVal);
// 调用日期时间更改的回调方法
onDateTimeChanged(); onDateTimeChanged();
} }
}; };
// 上午/下午选择器的监听器,当上午/下午选择器的值发生变化时触发
private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() { private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() {
@Override @Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) { public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
mIsAm = !mIsAm; // 切换上午/下午标志
mIsAm =!mIsAm;
if (mIsAm) { if (mIsAm) {
// 如果切换到上午,日期时间减少 12 小时
mDate.add(Calendar.HOUR_OF_DAY, -HOURS_IN_HALF_DAY); mDate.add(Calendar.HOUR_OF_DAY, -HOURS_IN_HALF_DAY);
} else { } else {
// 如果切换到下午,日期时间增加 12 小时
mDate.add(Calendar.HOUR_OF_DAY, HOURS_IN_HALF_DAY); mDate.add(Calendar.HOUR_OF_DAY, HOURS_IN_HALF_DAY);
} }
// 更新上午/下午选择器的显示
updateAmPmControl(); updateAmPmControl();
// 调用日期时间更改的回调方法
onDateTimeChanged(); onDateTimeChanged();
} }
}; };
// 日期时间更改的监听器接口,定义了日期时间发生变化时的回调方法
public interface OnDateTimeChangedListener { public interface OnDateTimeChangedListener {
void onDateTimeChanged(DateTimePicker view, int year, int month, void onDateTimeChanged(DateTimePicker view, int year, int month,
int dayOfMonth, int hourOfDay, int minute); int dayOfMonth, int hourOfDay, int minute);
} }
// 构造函数,使用当前时间作为初始日期
public DateTimePicker(Context context) { public DateTimePicker(Context context) {
this(context, System.currentTimeMillis()); this(context, System.currentTimeMillis());
} }
// 构造函数,使用指定的日期作为初始日期
public DateTimePicker(Context context, long date) { public DateTimePicker(Context context, long date) {
this(context, date, DateFormat.is24HourFormat(context)); this(context, date, DateFormat.is24HourFormat(context));
} }
// 构造函数,使用指定的日期和是否 24 小时制作为初始设置
public DateTimePicker(Context context, long date, boolean is24HourView) { public DateTimePicker(Context context, long date, boolean is24HourView) {
super(context); super(context);
// 获取一个 Calendar 实例
mDate = Calendar.getInstance(); mDate = Calendar.getInstance();
mInitialising = true; mInitialising = true;
// 判断当前时间是否为上午
mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY; mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY;
// 从布局文件中加载该组件
inflate(context, R.layout.datetime_picker, this); inflate(context, R.layout.datetime_picker, this);
// 初始化日期选择器
mDateSpinner = (NumberPicker) findViewById(R.id.date); mDateSpinner = (NumberPicker) findViewById(R.id.date);
mDateSpinner.setMinValue(DATE_SPINNER_MIN_VAL); mDateSpinner.setMinValue(DATE_SPINNER_MIN_VAL);
mDateSpinner.setMaxValue(DATE_SPINNER_MAX_VAL); mDateSpinner.setMaxValue(DATE_SPINNER_MAX_VAL);
mDateSpinner.setOnValueChangedListener(mOnDateChangedListener); mDateSpinner.setOnValueChangedListener(mOnDateChangedListener);
// 初始化小时选择器
mHourSpinner = (NumberPicker) findViewById(R.id.hour); mHourSpinner = (NumberPicker) findViewById(R.id.hour);
mHourSpinner.setOnValueChangedListener(mOnHourChangedListener); mHourSpinner.setOnValueChangedListener(mOnHourChangedListener);
mMinuteSpinner = (NumberPicker) findViewById(R.id.minute);
// 初始化分钟选择器
mMinuteSpinner = (NumberPicker) findViewById(R.id.minute);
mMinuteSpinner.setMinValue(MINUT_SPINNER_MIN_VAL); mMinuteSpinner.setMinValue(MINUT_SPINNER_MIN_VAL);
mMinuteSpinner.setMaxValue(MINUT_SPINNER_MAX_VAL); mMinuteSpinner.setMaxValue(MINUT_SPINNER_MAX_VAL);
// 设置长按更新间隔,以毫秒为单位
mMinuteSpinner.setOnLongPressUpdateInterval(100); mMinuteSpinner.setOnLongPressUpdateInterval(100);
mMinuteSpinner.setOnValueChangedListener(mOnMinuteChangedListener); mMinuteSpinner.setOnValueChangedListener(mOnMinuteChangedListener);
// 获取上午/下午的字符串表示(如 "AM" 和 "PM"
String[] stringsForAmPm = new DateFormatSymbols().getAmPmStrings(); String[] stringsForAmPm = new DateFormatSymbols().getAmPmStrings();
// 初始化上午/下午选择器
mAmPmSpinner = (NumberPicker) findViewById(R.id.amPm); mAmPmSpinner = (NumberPicker) findViewById(R.id.amPm);
mAmPmSpinner.setMinValue(AMPM_SPINNER_MIN_VAL); mAmPmSpinner.setMinValue(AMPM_SPINNER_MIN_VAL);
mAmPmSpinner.setMaxValue(AMPM_SPINNER_MAX_VAL); mAmPmSpinner.setMaxValue(AMPM_SPINNER_MAX_VAL);
mAmPmSpinner.setDisplayedValues(stringsForAmPm); mAmPmSpinner.setDisplayedValues(stringsForAmPm);
mAmPmSpinner.setOnValueChangedListener(mOnAmPmChangedListener); mAmPmSpinner.setOnValueChangedListener(mOnAmPmChangedListener);
// update controls to initial state
// 更新日期显示相关的控件
updateDateControl(); updateDateControl();
// 更新小时显示相关的控件
updateHourControl(); updateHourControl();
// 更新上午/下午显示相关的控件
updateAmPmControl(); updateAmPmControl();
// 设置是否使用 24 小时制
set24HourView(is24HourView); set24HourView(is24HourView);
// set to current time
// 设置当前日期
setCurrentDate(date); setCurrentDate(date);
// 设置启用状态
setEnabled(isEnabled()); setEnabled(isEnabled());
// set the content descriptions
// 设置内容描述
mInitialising = false; mInitialising = false;
} }
// 重写 setEnabled 方法,用于设置日期时间选择器的启用状态
@Override @Override
public void setEnabled(boolean enabled) { public void setEnabled(boolean enabled) {
if (mIsEnabled == enabled) { if (mIsEnabled == enabled) {
@ -227,145 +308,126 @@ public class DateTimePicker extends FrameLayout {
mIsEnabled = enabled; mIsEnabled = enabled;
} }
// 重写 isEnabled 方法,用于检查日期时间选择器是否处于启用状态
@Override @Override
public boolean isEnabled() { public boolean isEnabled() {
return mIsEnabled; return mIsEnabled;
} }
/**
* Get the current date in millis // 获取当前日期的毫秒表示
*
* @return the current date in millis
*/
public long getCurrentDateInTimeMillis() { public long getCurrentDateInTimeMillis() {
return mDate.getTimeInMillis(); return mDate.getTimeInMillis();
} }
/**
* Set the current date // 设置当前日期,通过传入日期的毫秒表示
*
* @param date The current date in millis
*/
public void setCurrentDate(long date) { public void setCurrentDate(long date) {
// 创建一个 Calendar 实例
Calendar cal = Calendar.getInstance(); Calendar cal = Calendar.getInstance();
// 设置 Calendar 的时间为传入的日期
cal.setTimeInMillis(date); cal.setTimeInMillis(date);
// 调用另一个 setCurrentDate 方法,传入年、月、日、小时和分钟
setCurrentDate(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH), setCurrentDate(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH),
cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE)); cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE));
} }
/**
* Set the current date // 设置当前日期,通过传入年、月、日、小时和分钟
* public void setCurrentDate(int year, int month, int dayOfMonth, int hourOfDay, int minute) {
* @param year The current year // 设置年
* @param month The current month
* @param dayOfMonth The current dayOfMonth
* @param hourOfDay The current hourOfDay
* @param minute The current minute
*/
public void setCurrentDate(int year, int month,
int dayOfMonth, int hourOfDay, int minute) {
setCurrentYear(year); setCurrentYear(year);
// 设置月
setCurrentMonth(month); setCurrentMonth(month);
// 设置日
setCurrentDay(dayOfMonth); setCurrentDay(dayOfMonth);
// 设置小时
setCurrentHour(hourOfDay); setCurrentHour(hourOfDay);
// 设置分钟
setCurrentMinute(minute); setCurrentMinute(minute);
} }
/**
* Get current year // 获取当前年
*
* @return The current year
*/
public int getCurrentYear() { public int getCurrentYear() {
return mDate.get(Calendar.YEAR); return mDate.get(Calendar.YEAR);
} }
/**
* Set current year // 设置当前年
*
* @param year The current year
*/
public void setCurrentYear(int year) { public void setCurrentYear(int year) {
if (!mInitialising && year == getCurrentYear()) { if (!mInitialising && year == getCurrentYear()) {
return; return;
} }
mDate.set(Calendar.YEAR, year); mDate.set(Calendar.YEAR, year);
// 更新日期显示相关的控件
updateDateControl(); updateDateControl();
// 调用日期时间更改的回调方法
onDateTimeChanged(); onDateTimeChanged();
} }
/**
* Get current month in the year // 获取当前月
*
* @return The current month in the year
*/
public int getCurrentMonth() { public int getCurrentMonth() {
return mDate.get(Calendar.MONTH); return mDate.get(Calendar.MONTH);
} }
/**
* Set current month in the year // 设置当前月
*
* @param month The month in the year
*/
public void setCurrentMonth(int month) { public void setCurrentMonth(int month) {
if (!mInitialising && month == getCurrentMonth()) { if (!mInitialising && month == getCurrentMonth()) {
return; return;
} }
mDate.set(Calendar.MONTH, month); mDate.set(Calendar.MONTH, month);
// 更新日期显示相关的控件
updateDateControl(); updateDateControl();
// 调用日期时间更改的回调方法
onDateTimeChanged(); onDateTimeChanged();
} }
/**
* Get current day of the month // 获取当前日
*
* @return The day of the month
*/
public int getCurrentDay() { public int getCurrentDay() {
return mDate.get(Calendar.DAY_OF_MONTH); return mDate.get(Calendar.DAY_OF_MONTH);
} }
/**
* Set current day of the month // 设置当前日
*
* @param dayOfMonth The day of the month
*/
public void setCurrentDay(int dayOfMonth) { public void setCurrentDay(int dayOfMonth) {
if (!mInitialising && dayOfMonth == getCurrentDay()) { if (!mInitialising && dayOfMonth == getCurrentDay()) {
return; return;
} }
mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth); mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
// 更新日期显示相关的控件
updateDateControl(); updateDateControl();
// 调用日期时间更改的回调方法
onDateTimeChanged(); onDateTimeChanged();
} }
/**
* Get current hour in 24 hour mode, in the range (0~23) // 获取 24 小时制下的当前小时
* @return The current hour in 24 hour mode
*/
public int getCurrentHourOfDay() { public int getCurrentHourOfDay() {
return mDate.get(Calendar.HOUR_OF_DAY); return mDate.get(Calendar.HOUR_OF_DAY);
} }
// 获取当前小时,根据是否 24 小时制进行转换
private int getCurrentHour() { private int getCurrentHour() {
if (mIs24HourView){ if (mIs24HourView) {
return getCurrentHourOfDay(); return getCurrentHourOfDay();
} else { } else {
int hour = getCurrentHourOfDay(); int hour = getCurrentHourOfDay();
if (hour > HOURS_IN_HALF_DAY) { if (hour > HOURS_IN_HALF_DAY) {
return hour - HOURS_IN_HALF_DAY; return hour - HOURS_IN_HALF_DAY;
} else { } else {
return hour == 0 ? HOURS_IN_HALF_DAY : hour; return hour == 0? HOURS_IN_HALF_DAY : hour;
} }
} }
} }
/**
* Set current hour in 24 hour mode, in the range (0~23) // 设置 24 小时制下的当前小时
*
* @param hourOfDay
*/
public void setCurrentHour(int hourOfDay) { public void setCurrentHour(int hourOfDay) {
if (!mInitialising && hourOfDay == getCurrentHourOfDay()) { if (!mInitialising && hourOfDay == getCurrentHourOfDay()) {
return; return;
@ -383,63 +445,65 @@ public class DateTimePicker extends FrameLayout {
hourOfDay = HOURS_IN_HALF_DAY; hourOfDay = HOURS_IN_HALF_DAY;
} }
} }
// 更新上午/下午选择器的显示
updateAmPmControl(); updateAmPmControl();
} }
mHourSpinner.setValue(hourOfDay); mHourSpinner.setValue(hourOfDay);
// 调用日期时间更改的回调方法
onDateTimeChanged(); onDateTimeChanged();
} }
/**
* Get currentMinute // 获取当前分钟
*
* @return The Current Minute
*/
public int getCurrentMinute() { public int getCurrentMinute() {
return mDate.get(Calendar.MINUTE); return mDate.get(Calendar.MINUTE);
} }
/**
* Set current minute // 设置当前分钟
*/
public void setCurrentMinute(int minute) { public void setCurrentMinute(int minute) {
if (!mInitialising && minute == getCurrentMinute()) { if (!mInitialising && minute == getCurrentMinute()) {
return; return;
} }
mMinuteSpinner.setValue(minute); mMinuteSpinner.setValue(minute);
mDate.set(Calendar.MINUTE, minute); mDate.set(Calendar.MINUTE, minute);
// 调用日期时间更改的回调方法
onDateTimeChanged(); onDateTimeChanged();
} }
/**
* @return true if this is in 24 hour view else false. // 检查是否使用 24 小时制
*/ public boolean is24HourView() {
public boolean is24HourView () {
return mIs24HourView; return mIs24HourView;
} }
/**
* Set whether in 24 hour or AM/PM mode. // 设置是否使用 24 小时制
*
* @param is24HourView True for 24 hour mode. False for AM/PM mode.
*/
public void set24HourView(boolean is24HourView) { public void set24HourView(boolean is24HourView) {
if (mIs24HourView == is24HourView) { if (mIs24HourView == is24HourView) {
return; return;
} }
mIs24HourView = is24HourView; mIs24HourView = is24HourView;
mAmPmSpinner.setVisibility(is24HourView ? View.GONE : View.VISIBLE); mAmPmSpinner.setVisibility(is24HourView? View.GONE : View.VISIBLE);
int hour = getCurrentHourOfDay(); int hour = getCurrentHourOfDay();
// 更新小时显示相关的控件
updateHourControl(); updateHourControl();
// 设置当前小时
setCurrentHour(hour); setCurrentHour(hour);
// 更新上午/下午显示相关的控件
updateAmPmControl(); updateAmPmControl();
} }
// 更新日期显示相关的控件
private void updateDateControl() { private void updateDateControl() {
Calendar cal = Calendar.getInstance(); Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(mDate.getTimeInMillis()); cal.setTimeInMillis(mDate.getTimeInMillis());
// 将日期向前偏移 4 天(一周的一半减 1
cal.add(Calendar.DAY_OF_YEAR, -DAYS_IN_ALL_WEEK / 2 - 1); cal.add(Calendar.DAY_OF_YEAR, -DAYS_IN_ALL_WEEK / 2 - 1);
mDateSpinner.setDisplayedValues(null); mDateSpinner.setDisplayedValues(null);
for (int i = 0; i < DAYS_IN_ALL_WEEK; ++i) { for (int i = 0; i < DAYS_IN_ALL_WEEK; ++i) {
// 循环生成一周内的日期显示字符串
cal.add(Calendar.DAY_OF_YEAR, 1); cal.add(Calendar.DAY_OF_YEAR, 1);
mDateDisplayValues[i] = (String) DateFormat.format("MM.dd EEEE", cal); mDateDisplayValues[i] = (String) DateFormat.format("MM.dd EEEE", cal);
} }
@ -448,16 +512,22 @@ public class DateTimePicker extends FrameLayout {
mDateSpinner.invalidate(); mDateSpinner.invalidate();
} }
// 更新上午/下午显示相关的控件
private void updateAmPmControl() { private void updateAmPmControl() {
if (mIs24HourView) { if (mIs24HourView) {
// 在 24 小时制下,隐藏上午/下午选择器
mAmPmSpinner.setVisibility(View.GONE); mAmPmSpinner.setVisibility(View.GONE);
} else { } else {
int index = mIsAm ? Calendar.AM : Calendar.PM; // 根据当前是上午还是下午设置上午/下午选择器的值
int index = mIsAm? Calendar.AM : Calendar.PM;
mAmPmSpinner.setValue(index); mAmPmSpinner.setValue(index);
mAmPmSpinner.setVisibility(View.VISIBLE); mAmPmSpinner.setVisibility(View.VISIBLE);
} }
} }
// 更新小时显示相关的控件
private void updateHourControl() { private void updateHourControl() {
if (mIs24HourView) { if (mIs24HourView) {
mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW); mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW);
@ -468,18 +538,18 @@ public class DateTimePicker extends FrameLayout {
} }
} }
/**
* Set the callback that indicates the 'Set' button has been pressed. // 设置日期时间更改的监听器
* @param callback the callback, if null will do nothing
*/
public void setOnDateTimeChangedListener(OnDateTimeChangedListener callback) { public void setOnDateTimeChangedListener(OnDateTimeChangedListener callback) {
mOnDateTimeChangedListener = callback; mOnDateTimeChangedListener = callback;
} }
// 当日期时间发生更改时调用该方法
private void onDateTimeChanged() { private void onDateTimeChanged() {
if (mOnDateTimeChangedListener != null) { if (mOnDateTimeChangedListener!= null) {
mOnDateTimeChangedListener.onDateTimeChanged(this, getCurrentYear(), mOnDateTimeChangedListener.onDateTimeChanged(this, getCurrentYear(),
getCurrentMonth(), getCurrentDay(), getCurrentHourOfDay(), getCurrentMinute()); getCurrentMonth(), getCurrentDay(), getCurrentHourOfDay(), getCurrentMinute());
} }
} }
} }

@ -14,6 +14,7 @@
* limitations under the License. * limitations under the License.
*/ */
// 包声明,该类属于 net.micode.notes.ui 包
package net.micode.notes.ui; package net.micode.notes.ui;
import java.util.Calendar; import java.util.Calendar;
@ -29,62 +30,139 @@ import android.content.DialogInterface.OnClickListener;
import android.text.format.DateFormat; import android.text.format.DateFormat;
import android.text.format.DateUtils; import android.text.format.DateUtils;
// DateTimePickerDialog 类继承自 AlertDialog 并实现 OnClickListener 接口,用于创建一个包含日期时间选择器的对话框
public class DateTimePickerDialog extends AlertDialog implements OnClickListener { public class DateTimePickerDialog extends AlertDialog implements OnClickListener {
// 存储用户选择的日期和时间信息的 Calendar 对象,使用 Calendar.getInstance() 初始化,以便获取当前日期和时间信息
private Calendar mDate = Calendar.getInstance(); private Calendar mDate = Calendar.getInstance();
// 布尔变量,用于标记是否使用 24 小时制true 表示使用 24 小时制false 表示使用 12 小时制
private boolean mIs24HourView; private boolean mIs24HourView;
// 定义一个接口类型的变量,用于存储用户设置日期时间后的回调监听器
private OnDateTimeSetListener mOnDateTimeSetListener; private OnDateTimeSetListener mOnDateTimeSetListener;
// 日期时间选择器的实例,将其添加到对话框中供用户操作
private DateTimePicker mDateTimePicker; private DateTimePicker mDateTimePicker;
// 自定义的接口,用于监听用户设置日期时间的操作
public interface OnDateTimeSetListener { public interface OnDateTimeSetListener {
// 当用户完成日期时间设置后会调用此方法
void OnDateTimeSet(AlertDialog dialog, long date); void OnDateTimeSet(AlertDialog dialog, long date);
} }
// 构造函数,接收 Context 和初始日期作为参数
public DateTimePickerDialog(Context context, long date) { public DateTimePickerDialog(Context context, long date) {
// 调用父类AlertDialog的构造函数传递上下文信息以完成对话框的基本初始化
super(context); super(context);
// 创建一个新的 DateTimePicker 实例,将其作为对话框的主要视图元素
mDateTimePicker = new DateTimePicker(context); mDateTimePicker = new DateTimePicker(context);
// 将创建的 DateTimePicker 实例添加到对话框中,使其显示在对话框内
setView(mDateTimePicker); setView(mDateTimePicker);
// 为 DateTimePicker 注册日期时间更改监听器,当用户在日期时间选择器中更改日期或时间时会触发该监听器
mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() { mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() {
@Override
public void onDateTimeChanged(DateTimePicker view, int year, int month, public void onDateTimeChanged(DateTimePicker view, int year, int month,
int dayOfMonth, int hourOfDay, int minute) { int dayOfMonth, int hourOfDay, int minute) {
// 当用户在 DateTimePicker 中选择日期时间后,更新 mDate 中的年信息
mDate.set(Calendar.YEAR, year); mDate.set(Calendar.YEAR, year);
// 更新 mDate 中的月信息,注意 Calendar.MONTH 的值范围是 0 到 11
mDate.set(Calendar.MONTH, month); mDate.set(Calendar.MONTH, month);
// 更新 mDate 中的日信息
mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth); mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
// 更新 mDate 中的小时信息
mDate.set(Calendar.HOUR_OF_DAY, hourOfDay); mDate.set(Calendar.HOUR_OF_DAY, hourOfDay);
// 更新 mDate 中的分钟信息
mDate.set(Calendar.MINUTE, minute); mDate.set(Calendar.MINUTE, minute);
// 调用 updateTitle 方法更新对话框的标题,以反映用户的最新选择
updateTitle(mDate.getTimeInMillis()); updateTitle(mDate.getTimeInMillis());
} }
}); });
// 将传入的初始日期设置到 mDate 中,确保初始日期的正确性
mDate.setTimeInMillis(date); mDate.setTimeInMillis(date);
// 将 mDate 的秒设置为 0以精确到分钟避免秒级别的精度影响
mDate.set(Calendar.SECOND, 0); mDate.set(Calendar.SECOND, 0);
// 将 mDate 的毫秒也设置为 0进一步精确到分钟
mDate.set(Calendar.MILLISECOND, 0);
// 将 DateTimePicker 的当前日期设置为存储在 mDate 中的日期,确保选择器初始显示的日期正确
mDateTimePicker.setCurrentDate(mDate.getTimeInMillis()); mDateTimePicker.setCurrentDate(mDate.getTimeInMillis());
// 为对话框设置确认按钮,按钮文本从资源文件中获取,并将当前对象作为点击监听器
setButton(context.getString(R.string.datetime_dialog_ok), this); setButton(context.getString(R.string.datetime_dialog_ok), this);
setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null);
// 为对话框设置取消按钮,按钮文本从资源文件中获取,点击监听器设置为 null即点击取消按钮不执行任何操作
setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener) null);
// 根据系统的时间格式设置,决定是否使用 24 小时制,并调用 set24HourView 方法进行设置
set24HourView(DateFormat.is24HourFormat(this.getContext())); set24HourView(DateFormat.is24HourFormat(this.getContext()));
// 调用 updateTitle 方法,根据当前的日期和时间设置更新对话框的标题
updateTitle(mDate.getTimeInMillis()); updateTitle(mDate.getTimeInMillis());
} }
// 设置是否使用 24 小时制的方法
public void set24HourView(boolean is24HourView) { public void set24HourView(boolean is24HourView) {
// 将 mIs24HourView 的值更新为传入的参数,以决定日期时间选择器的显示和操作方式
mIs24HourView = is24HourView; mIs24HourView = is24HourView;
} }
// 设置日期时间设置监听器的方法,用于在用户完成日期时间设置后执行相应操作
public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) { public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) {
// 将传入的监听器存储在 mOnDateTimeSetListener 中,以便在用户点击确认按钮时调用
mOnDateTimeSetListener = callBack; mOnDateTimeSetListener = callBack;
} }
// 更新对话框标题的方法,根据日期和时间以及 24 小时制标志更新标题显示
private void updateTitle(long date) { private void updateTitle(long date) {
// 定义日期时间显示的格式标志,这里包含显示年、日期和时间
int flag = int flag =
DateUtils.FORMAT_SHOW_YEAR | DateUtils.FORMAT_SHOW_YEAR |
DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_DATE |
DateUtils.FORMAT_SHOW_TIME; DateUtils.FORMAT_SHOW_TIME;
flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR;
// 根据是否使用 24 小时制添加相应的格式标志,这里存在错误,应修改为 DateUtils.FORMAT_12HOUR
flag |= mIs24HourView? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_12HOUR;
// 使用 DateUtils 类的 formatDateTime 方法将日期时间格式化为字符串,并将其设置为对话框的标题
setTitle(DateUtils.formatDateTime(this.getContext(), date, flag)); setTitle(DateUtils.formatDateTime(this.getContext(), date, flag));
} }
// 实现 OnClickListener 接口的 onClick 方法,处理用户点击确认按钮的操作
@Override
public void onClick(DialogInterface arg0, int arg1) { public void onClick(DialogInterface arg0, int arg1) {
if (mOnDateTimeSetListener != null) { // 当用户点击确认按钮时,检查是否已设置了 OnDateTimeSetListener
if (mOnDateTimeSetListener!= null) {
// 如果设置了监听器,则调用监听器的 OnDateTimeSet 方法,将当前对话框和用户选择的日期时间传递给监听器
mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis()); mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis());
} }
} }
} }

@ -1,4 +1,4 @@
#Tue Dec 03 16:56:25 CST 2024 #Tue Dec 03 17:32:01 CST 2024
distributionBase=GRADLE_USER_HOME distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-bin.zip distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-bin.zip

Loading…
Cancel
Save