diff --git a/MiNote/app/src/main/AndroidManifest.xml b/MiNote/app/src/main/AndroidManifest.xml index 0407c61..1c01460 100644 --- a/MiNote/app/src/main/AndroidManifest.xml +++ b/MiNote/app/src/main/AndroidManifest.xml @@ -23,46 +23,52 @@ android:supportsRtl="true" android:theme="@style/Theme.MiNote" tools:targetApi="31"> + + + + + + - - - - - + android:windowSoftInputMode="adjustPan"> - - + android:theme="@style/Theme.AppCompat.Light.DarkActionBar"> + + - + + - + @@ -71,16 +77,15 @@ android:resource="@xml/searchable" /> - + android:exported="true" + android:label="@string/app_widget2x2"> @@ -93,9 +98,8 @@ - + android:exported="true" + android:label="@string/app_widget4x4"> @@ -106,52 +110,35 @@ android:name="android.appwidget.provider" android:resource="@xml/widget_4x_info" /> - - - - + android:name=".ui.AlarmReceiver" + android:process=":remote" /> - - + android:theme="@android:style/Theme.Holo.Wallpaper.NoTitleBar" /> - + android:theme="@android:style/Theme.Holo.Light" /> - + android:name=".gtask.remote.GTaskSyncService" + android:exported="false" /> - - - - - - - - - - - \ No newline at end of file diff --git a/MiNote/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java b/MiNote/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java index 1f4e4f2..d46a0d8 100644 --- a/MiNote/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java +++ b/MiNote/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java @@ -299,6 +299,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { Log.d(TAG, "data table has been created"); } + // 同上文的execSQL private void reCreateDataTableTriggers(SQLiteDatabase db) { db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_insert"); db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_update"); @@ -309,6 +310,11 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER); } + /* + * 为解决同一时刻只能有一个线程执行 + * 在写程序库代码时，有时一个类需要杯所有的其他类使用 + * 但又要求这个类只能被实例化一次，是一个服务类，定义一次，其他类使用此类的同一个实例 + */ static synchronized NotesDatabaseHelper getInstance(Context context) { if (mInstance == null) { mInstance = new NotesDatabaseHelper(context); @@ -316,12 +322,14 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { return mInstance; } + // 实现上面创建的两个表格 @Override public void onCreate(SQLiteDatabase db) { createNoteTable(db); createDataTable(db); } + // 数据库版本的更新 @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { boolean reCreateTriggers = false; @@ -355,6 +363,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { } } + // 更新到V2版本 private void upgradeToV2(SQLiteDatabase db) { db.execSQL("DROP TABLE IF EXISTS " + TABLE.NOTE); db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA); @@ -362,6 +371,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { createDataTable(db); } + // 更新到V3版本 private void upgradeToV3(SQLiteDatabase db) { // drop unused triggers db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_insert"); @@ -377,6 +387,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { db.insert(TABLE.NOTE, null, values); } + // 更新到V4版本 private void upgradeToV4(SQLiteDatabase db) { db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0"); diff --git a/MiNote/app/src/main/java/net/micode/notes/data/NotesProvider.java b/MiNote/app/src/main/java/net/micode/notes/data/NotesProvider.java index edb0a60..c0e372c 100644 --- a/MiNote/app/src/main/java/net/micode/notes/data/NotesProvider.java +++ b/MiNote/app/src/main/java/net/micode/notes/data/NotesProvider.java @@ -25,6 +25,7 @@ import android.content.Intent; import android.content.UriMatcher; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; +// Uri代表所要操作的数据，Android上可用的每种资源 -包括 图像、视频片段、音频资源等都可以用Uri来表示 import android.net.Uri; import android.text.TextUtils; import android.util.Log; @@ -33,10 +34,18 @@ import net.micode.notes.R; import net.micode.notes.data.Notes.DataColumns; import net.micode.notes.data.Notes.NoteColumns; import net.micode.notes.data.NotesDatabaseHelper.TABLE; - +/* +* 为存储和获取数据提供接口，可以在不同的应用程序之间共享数据 +* ContentProvider提供的方法 +* query：查询 +* insert：插入 +* update：更新 +* delete：删除 +* getType：得到数据类型 +* */ public class NotesProvider extends ContentProvider { - private static final UriMatcher mMatcher; + private static final UriMatcher mMatcher;// UriMatcher用于匹配Uri private NotesDatabaseHelper mHelper; @@ -51,7 +60,9 @@ public class NotesProvider extends ContentProvider { private static final int URI_SEARCH_SUGGEST = 6; static { + // 创建UriMatcher时，调用UriMatcher(UriMatcher.NO_MATCH)表示不匹配任何路径的返回码 mMatcher = new UriMatcher(UriMatcher.NO_MATCH); + // 把需要匹配的Uri路径全部注册 mMatcher.addURI(Notes.AUTHORITY, "note", URI_NOTE); mMatcher.addURI(Notes.AUTHORITY, "note/#", URI_NOTE_ITEM); mMatcher.addURI(Notes.AUTHORITY, "data", URI_DATA); @@ -65,6 +76,7 @@ public class NotesProvider extends ContentProvider { * x'0A' represents the '\n' character in sqlite. For title and content in the search result, * we will trim '\n' and white space in order to show more information. */ + // 声明NOTES_SEARCH_PROJECTION private static final String NOTES_SEARCH_PROJECTION = NoteColumns.ID + "," + NoteColumns.ID + " AS " + SearchManager.SUGGEST_COLUMN_INTENT_EXTRA_DATA + "," + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_1 + "," @@ -73,25 +85,32 @@ public class NotesProvider extends ContentProvider { + "'" + Intent.ACTION_VIEW + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_ACTION + "," + "'" + Notes.TextNote.CONTENT_TYPE + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_DATA; + //声明NOTES_SNIPPET_SEARCH_QUERY private static String NOTES_SNIPPET_SEARCH_QUERY = "SELECT " + NOTES_SEARCH_PROJECTION + " FROM " + TABLE.NOTE + " WHERE " + NoteColumns.SNIPPET + " LIKE ?" + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE; + // Context只用在onCreate()中才能被初始化 + // 对mHelper进行实例化 @Override public boolean onCreate() { mHelper = NotesDatabaseHelper.getInstance(getContext()); return true; } + // 查询Uri在数据库中对应的位置 @Override public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) { Cursor c = null; + // 获取可读数据库 SQLiteDatabase db = mHelper.getReadableDatabase(); String id = null; + // 匹配查找uri switch (mMatcher.match(uri)) { + // 对于不同的匹配值，在数据库中查找相应的条目 case URI_NOTE: c = db.query(TABLE.NOTE, projection, selection, selectionArgs, null, null, sortOrder); @@ -113,6 +132,7 @@ public class NotesProvider extends ContentProvider { case URI_SEARCH: case URI_SEARCH_SUGGEST: if (sortOrder != null || projection != null) { + // 不合法的参数异常 throw new IllegalArgumentException( "do not specify sortOrder, selection, selectionArgs, or projection" + "with this query"); } @@ -120,6 +140,8 @@ public class NotesProvider extends ContentProvider { String searchString = null; if (mMatcher.match(uri) == URI_SEARCH_SUGGEST) { if (uri.getPathSegments().size() > 1) { + // getPathSegments()方法得到一个String的List + // 在uri.getPathSegments().get(1)为第二个元素 searchString = uri.getPathSegments().get(1); } } else { @@ -139,6 +161,7 @@ public class NotesProvider extends ContentProvider { } break; default: + // 抛出未知uri的异常 throw new IllegalArgumentException("Unknown URI " + uri); } if (c != null) { @@ -148,14 +171,18 @@ public class NotesProvider extends ContentProvider { } @Override + // 插入一个uri public Uri insert(Uri uri, ContentValues values) { + // 获得一个可写的数据库 SQLiteDatabase db = mHelper.getWritableDatabase(); long dataId = 0, noteId = 0, insertedId = 0; switch (mMatcher.match(uri)) { + // 新增一个条目 case URI_NOTE: insertedId = noteId = db.insert(TABLE.NOTE, null, values); break; case URI_DATA: + // 如果存在，查找NOTE_ID if (values.containsKey(DataColumns.NOTE_ID)) { noteId = values.getAsLong(DataColumns.NOTE_ID); } else { @@ -167,6 +194,7 @@ public class NotesProvider extends ContentProvider { throw new IllegalArgumentException("Unknown URI " + uri); } // Notify the note uri + // notifyChange()获得一个ContextResolver对象并且更新里面的内容 if (noteId > 0) { getContext().getContentResolver().notifyChange( ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null); @@ -178,13 +206,16 @@ public class NotesProvider extends ContentProvider { ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null); } + // 返回插入的uri路径 return ContentUris.withAppendedId(uri, insertedId); } @Override + // 删除一个uri public int delete(Uri uri, String selection, String[] selectionArgs) { int count = 0; String id = null; + // 获得可写的数据库 SQLiteDatabase db = mHelper.getWritableDatabase(); boolean deleteData = false; switch (mMatcher.match(uri)) { @@ -228,6 +259,7 @@ public class NotesProvider extends ContentProvider { } @Override + // 更新一个uri public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) { int count = 0; String id = null; @@ -267,10 +299,12 @@ public class NotesProvider extends ContentProvider { return count; } + // 将字符串解析成规定格式 private String parseSelection(String selection) { return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : ""); } + // 增加一个noteVersion private void increaseNoteVersion(long id, String selection, String[] selectionArgs) { StringBuilder sql = new StringBuilder(120); sql.append("UPDATE "); @@ -293,6 +327,7 @@ public class NotesProvider extends ContentProvider { sql.append(selectString); } + // execSQL()方法可以执行insert、delete、update和CREATE TABLE之类有更改行为的SQL语句 mHelper.getWritableDatabase().execSQL(sql.toString()); } diff --git a/MiNote/app/src/main/java/net/micode/notes/gtask/data/MetaData.java b/MiNote/app/src/main/java/net/micode/notes/gtask/data/MetaData.java index 3a2050b..17221c1 100644 --- a/MiNote/app/src/main/java/net/micode/notes/gtask/data/MetaData.java +++ b/MiNote/app/src/main/java/net/micode/notes/gtask/data/MetaData.java @@ -24,31 +24,43 @@ import net.micode.notes.tool.GTaskStringUtils; import org.json.JSONException; import org.json.JSONObject; - public class MetaData extends Task { + /* + * 功能描述：得到类的简写名称存到字符串TAG中 + * 实现过程：调用getSimpleName（）函数 + * */ private final static String TAG = MetaData.class.getSimpleName(); private String mRelatedGid = null; + /* + * 功能描述：设置数据，即生成元数据库 + * 实现过程：调用JSONObject库函数put（），Task类中的setNotes（）和setName（）函数 + * */ public void setMeta(String gid, JSONObject metaInfo) { try { + // 将这对键值放入metaInfo这个jsonObject对象中 metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid); } catch (JSONException e) { + // 输出错误信息 Log.e(TAG, "failed to put related gid"); } setNotes(metaInfo.toString()); setName(GTaskStringUtils.META_NOTE_NAME); } + // 获取相关联的Gid public String getRelatedGid() { return mRelatedGid; } + // 判断当前数据是否为空，若为空则返回真，即值得保存 @Override public boolean isWorthSaving() { return getNotes() != null; } + // 使用远程json数据对象设置元数据内容 @Override public void setContentByRemoteJSON(JSONObject js) { super.setContentByRemoteJSON(js); @@ -63,17 +75,20 @@ public class MetaData extends Task { } } + // 使用本地json数据对象设置元数据内容，一般不会用到，若用到则抛出异常 @Override public void setContentByLocalJSON(JSONObject js) { // this function should not be called throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called"); } + // 从元数据内容中获取本地json对象，一般不会用到，若用到，则抛出异常 @Override public JSONObject getLocalJSONFromContent() { throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called"); } + // 获取同步动作状态，一般不会用到，若用到，则抛出异常 @Override public int getSyncAction(Cursor c) { throw new IllegalAccessError("MetaData:getSyncAction should not be called"); diff --git a/MiNote/app/src/main/java/net/micode/notes/gtask/data/Node.java b/MiNote/app/src/main/java/net/micode/notes/gtask/data/Node.java index 63950e0..c515044 100644 --- a/MiNote/app/src/main/java/net/micode/notes/gtask/data/Node.java +++ b/MiNote/app/src/main/java/net/micode/notes/gtask/data/Node.java @@ -13,7 +13,7 @@ * See the License for the specific language governing permissions and * limitations under the License. */ - +/*同步操作的基础数据类型，定义了相关指示同步操作的常量*/ package net.micode.notes.gtask.data; import android.database.Cursor; @@ -21,31 +21,31 @@ import android.database.Cursor; import org.json.JSONObject; public abstract class Node { - public static final int SYNC_ACTION_NONE = 0; + public static final int SYNC_ACTION_NONE = 0;// 本地和云端都无可更新内容 - public static final int SYNC_ACTION_ADD_REMOTE = 1; + public static final int SYNC_ACTION_ADD_REMOTE = 1;// 需要在远程云端增加内容 - public static final int SYNC_ACTION_ADD_LOCAL = 2; + public static final int SYNC_ACTION_ADD_LOCAL = 2;// 需要在本地增加内容 - public static final int SYNC_ACTION_DEL_REMOTE = 3; + public static final int SYNC_ACTION_DEL_REMOTE = 3;// 需要在本地增加内容 - public static final int SYNC_ACTION_DEL_LOCAL = 4; + public static final int SYNC_ACTION_DEL_LOCAL = 4;// 需要在远程云端删除内容 - public static final int SYNC_ACTION_UPDATE_REMOTE = 5; + public static final int SYNC_ACTION_UPDATE_REMOTE = 5;// 需要将本地内容更新到远程云端 - public static final int SYNC_ACTION_UPDATE_LOCAL = 6; + public static final int SYNC_ACTION_UPDATE_LOCAL = 6;// 需要将远程云端内容更新到本地 - public static final int SYNC_ACTION_UPDATE_CONFLICT = 7; + public static final int SYNC_ACTION_UPDATE_CONFLICT = 7;// 同步出现冲突 - public static final int SYNC_ACTION_ERROR = 8; + public static final int SYNC_ACTION_ERROR = 8;// 同步出现错误 private String mGid; private String mName; - private long mLastModified; + private long mLastModified;// 记录最后一次修改时间 - private boolean mDeleted; + private boolean mDeleted;// 节点是否被删除 public Node() { mGid = null; diff --git a/MiNote/app/src/main/java/net/micode/notes/gtask/data/SqlData.java b/MiNote/app/src/main/java/net/micode/notes/gtask/data/SqlData.java index d3ec3be..e8e4e73 100644 --- a/MiNote/app/src/main/java/net/micode/notes/gtask/data/SqlData.java +++ b/MiNote/app/src/main/java/net/micode/notes/gtask/data/SqlData.java @@ -13,7 +13,7 @@ * See the License for the specific language governing permissions and * limitations under the License. */ - +/*用于支持小米便签最底层的数据库相关操作，和sqlNode的关系上是子集关系，即data是node的子集（节点）*/ package net.micode.notes.gtask.data; import android.content.ContentResolver; @@ -36,41 +36,33 @@ import org.json.JSONObject; public class SqlData { + // 得到类的简写名称存入字符串TAG中 private static final String TAG = SqlData.class.getSimpleName(); - private static final int INVALID_ID = -99999; + private static final int INVALID_ID = -99999;// 为nDAtaID置初值-99999 + /*来自Notes类中定义的DataColumn中的一些常量*/ public static final String[] PROJECTION_DATA = new String[] { DataColumns.ID, DataColumns.MIME_TYPE, DataColumns.CONTENT, DataColumns.DATA1, DataColumns.DATA3 }; - public static final int DATA_ID_COLUMN = 0; - - public static final int DATA_MIME_TYPE_COLUMN = 1; - - public static final int DATA_CONTENT_COLUMN = 2; - - public static final int DATA_CONTENT_DATA_1_COLUMN = 3; - - public static final int DATA_CONTENT_DATA_3_COLUMN = 4; - - private ContentResolver mContentResolver; - - private boolean mIsCreate; - - private long mDataId; - - private String mDataMimeType; - - private String mDataContent; - - private long mDataContentData1; - - private String mDataContentData3; - - private ContentValues mDiffDataValues; - + public static final int DATA_ID_COLUMN = 0; // 数据ID列索引 + public static final int DATA_MIME_TYPE_COLUMN = 1; // 数据MIME类型列索引 + public static final int DATA_CONTENT_COLUMN = 2; // 数据内容列索引 + public static final int DATA_CONTENT_DATA_1_COLUMN = 3; // 数据内容DATA1列索引 + public static final int DATA_CONTENT_DATA_3_COLUMN = 4; // 数据内容DATA3列索引 + + private ContentResolver mContentResolver; // 内容解析器 + private boolean mIsCreate; // 是否为新建数据 + private long mDataId; // 数据ID + private String mDataMimeType; // 数据MIME类型 + private String mDataContent; // 数据内容 + private long mDataContentData1; // 数据内容DATA1 + private String mDataContentData3; // 数据内容DATA3 + private ContentValues mDiffDataValues; // 记录数据变化的ContentValues + + // 构造函数，用于新建数据 public SqlData(Context context) { mContentResolver = context.getContentResolver(); mIsCreate = true; @@ -82,6 +74,7 @@ public class SqlData { mDiffDataValues = new ContentValues(); } + // 构造函数，用于从数据库读取数据 public SqlData(Context context, Cursor c) { mContentResolver = context.getContentResolver(); mIsCreate = false; @@ -89,6 +82,7 @@ public class SqlData { mDiffDataValues = new ContentValues(); } + // 从游标加载数据 private void loadFromCursor(Cursor c) { mDataId = c.getLong(DATA_ID_COLUMN); mDataMimeType = c.getString(DATA_MIME_TYPE_COLUMN); @@ -97,6 +91,7 @@ public class SqlData { mDataContentData3 = c.getString(DATA_CONTENT_DATA_3_COLUMN); } + // 设置内容，根据JSON对象 public void setContent(JSONObject js) throws JSONException { long dataId = js.has(DataColumns.ID) ? js.getLong(DataColumns.ID) : INVALID_ID; if (mIsCreate || mDataId != dataId) { @@ -130,9 +125,10 @@ public class SqlData { mDataContentData3 = dataContentData3; } + // 获取内容，返回JSON对象 public JSONObject getContent() throws JSONException { if (mIsCreate) { - Log.e(TAG, "it seems that we haven't created this in database yet"); + Log.e(TAG, "看起来我们还没有在数据库中创建这个"); return null; } JSONObject js = new JSONObject(); @@ -144,8 +140,8 @@ public class SqlData { return js; } + // 提交数据到数据库 public void commit(long noteId, boolean validateVersion, long version) { - if (mIsCreate) { if (mDataId == INVALID_ID && mDiffDataValues.containsKey(DataColumns.ID)) { mDiffDataValues.remove(DataColumns.ID); @@ -156,8 +152,8 @@ public class SqlData { try { mDataId = Long.valueOf(uri.getPathSegments().get(1)); } catch (NumberFormatException e) { - Log.e(TAG, "Get note id error :" + e.toString()); - throw new ActionFailureException("create note failed"); + Log.e(TAG, "获取便签ID错误：" + e.toString()); + throw new ActionFailureException("创建便签失败"); } } else { if (mDiffDataValues.size() > 0) { @@ -167,14 +163,14 @@ public class SqlData { Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues, null, null); } else { result = mContentResolver.update(ContentUris.withAppendedId( - Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues, + Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues, " ? in (SELECT " + NoteColumns.ID + " FROM " + TABLE.NOTE + " WHERE " + NoteColumns.VERSION + "=?)", new String[] { String.valueOf(noteId), String.valueOf(version) }); } if (result == 0) { - Log.w(TAG, "there is no update. maybe user updates note when syncing"); + Log.w(TAG, "没有更新。可能用户在同步时更新了便签"); } } } @@ -183,7 +179,8 @@ public class SqlData { mIsCreate = false; } + // 获取数据ID public long getId() { return mDataId; } -} +} \ No newline at end of file diff --git a/MiNote/app/src/main/java/net/micode/notes/gtask/data/SqlNote.java b/MiNote/app/src/main/java/net/micode/notes/gtask/data/SqlNote.java index 79a4095..1528309 100644 --- a/MiNote/app/src/main/java/net/micode/notes/gtask/data/SqlNote.java +++ b/MiNote/app/src/main/java/net/micode/notes/gtask/data/SqlNote.java @@ -13,7 +13,7 @@ * See the License for the specific language governing permissions and * limitations under the License. */ - +/**/ package net.micode.notes.gtask.data; import android.appwidget.AppWidgetManager; diff --git a/MiNote/app/src/main/java/net/micode/notes/ui/DateTimePickerDialog.java b/MiNote/app/src/main/java/net/micode/notes/ui/DateTimePickerDialog.java index 2c47ba4..68ae0dd 100644 --- a/MiNote/app/src/main/java/net/micode/notes/ui/DateTimePickerDialog.java +++ b/MiNote/app/src/main/java/net/micode/notes/ui/DateTimePickerDialog.java @@ -32,18 +32,25 @@ import android.text.format.DateUtils; public class DateTimePickerDialog extends AlertDialog implements OnClickListener { private Calendar mDate = Calendar.getInstance(); + //创建一个Calendar类型的变量 mDate，方便时间的操作 private boolean mIs24HourView; private OnDateTimeSetListener mOnDateTimeSetListener; + //声明一个时间日期滚动选择控件 mOnDateTimeSetListener private DateTimePicker mDateTimePicker; + //DateTimePicker控件，控件一般用于让用户可以从日期列表中选择单个值。 + //运行时，单击控件边上的下拉箭头，会显示为两个部分：一个下拉列表，一个用于选择日期的 public interface OnDateTimeSetListener { void OnDateTimeSet(AlertDialog dialog, long date); } public DateTimePickerDialog(Context context, long date) { + //对该界面对话框的实例化 super(context); + //对数据库的操作 mDateTimePicker = new DateTimePicker(context); setView(mDateTimePicker); + //添加一个子视图 mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() { public void onDateTimeChanged(DateTimePicker view, int year, int month, int dayOfMonth, int hourOfDay, int minute) { @@ -52,26 +59,33 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth); mDate.set(Calendar.HOUR_OF_DAY, hourOfDay); mDate.set(Calendar.MINUTE, minute); + //将视图中的各选项设置为系统当前时间 updateTitle(mDate.getTimeInMillis()); } }); mDate.setTimeInMillis(date); + //得到系统时间 mDate.set(Calendar.SECOND, 0); + //将秒数设置为0 mDateTimePicker.setCurrentDate(mDate.getTimeInMillis()); setButton(context.getString(R.string.datetime_dialog_ok), this); setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null); + //设置按钮 set24HourView(DateFormat.is24HourFormat(this.getContext())); updateTitle(mDate.getTimeInMillis()); + //时间标准化打印 } public void set24HourView(boolean is24HourView) { mIs24HourView = is24HourView; } + //将时间日期滚动选择控件实例化 public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) { mOnDateTimeSetListener = callBack; } + //android开发中常见日期管理工具类（API）——DateUtils：按照上下午显示时间 private void updateTitle(long date) { int flag = DateUtils.FORMAT_SHOW_YEAR | @@ -86,5 +100,7 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis()); } } + //第一个参数arg0是接收到点击事件的对话框 + //第二个参数arg1是该对话框上的按钮 } \ No newline at end of file diff --git a/MiNote/app/src/main/java/net/micode/notes/ui/LoginActivity.java b/MiNote/app/src/main/java/net/micode/notes/ui/LoginActivity.java new file mode 100644 index 0000000..217045b --- /dev/null +++ b/MiNote/app/src/main/java/net/micode/notes/ui/LoginActivity.java @@ -0,0 +1,72 @@ +package net.micode.notes.ui; + +import android.app.Activity; +import android.app.ProgressDialog; +import android.content.Intent; +import android.os.Bundle; +import android.view.View; +import android.widget.Button; +import android.widget.EditText; +import android.widget.Toast; + +import androidx.activity.EdgeToEdge; +import androidx.appcompat.app.AlertDialog; +import androidx.appcompat.app.AppCompatActivity; +import androidx.core.graphics.Insets; +import androidx.core.view.ViewCompat; +import androidx.core.view.WindowInsetsCompat; + +import net.micode.notes.R; + +public class LoginActivity extends Activity { + private EditText accountEdict; + private EditText passwordEdict; + private Button login; + private Button cancel; + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); +// EdgeToEdge.enable(this); + setContentView(R.layout.activity_login); + accountEdict = (EditText) findViewById(R.id.account); + accountEdict.setSingleLine(); + passwordEdict = (EditText) findViewById(R.id.password); + passwordEdict.setSingleLine(); + login = (Button) findViewById(R.id.login); + cancel = (Button) findViewById(R.id.cancel); + cancel.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + Toast.makeText(LoginActivity.this,R.string.app_already_quit,Toast.LENGTH_LONG).show(); + finish(); + } + }); + login.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + String account = accountEdict.getText().toString(); + String password = passwordEdict.getText().toString(); + + + if(account.equals("czx") && password.equals("123456")){ + AlertDialog.Builder builder = new AlertDialog.Builder(LoginActivity.this); + builder.setMessage(getString(R.string.Loading)); + builder.setCancelable(true); + AlertDialog progressDialog = builder.create(); + progressDialog.show(); + + Intent intent = new Intent(LoginActivity.this,NotesListActivity.class); + startActivity(intent); + finish(); + }else { + Toast.makeText(LoginActivity.this, R.string.invalid,Toast.LENGTH_SHORT).show(); + } + } + }); +// ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> { +// Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars()); +// v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom); +// return insets; +// }); + } +} \ No newline at end of file diff --git a/MiNote/app/src/main/res/drawable-hdpi/saying.jpg b/MiNote/app/src/main/res/drawable-hdpi/saying.jpg deleted file mode 100644 index 1ec26af..0000000 Binary files a/MiNote/app/src/main/res/drawable-hdpi/saying.jpg and /dev/null differ diff --git a/MiNote/app/src/main/res/layout/activity_login.xml b/MiNote/app/src/main/res/layout/activity_login.xml new file mode 100644 index 0000000..cdd335a --- /dev/null +++ b/MiNote/app/src/main/res/layout/activity_login.xml @@ -0,0 +1,73 @@ + + + + + + + + + + + + + + + + + +