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Update NoteWidgetProvider.java

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p4ns2i85u 2 months ago
parent 57ffff42ff
commit 017666bc2d
1 changed files with 58 additions and 58 deletions
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src/net/micode/notes/widget/NoteWidgetProvider.java
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@ -14,119 +14,119 @@
* limitations under the License.
*/
package net.micode.notes.widget;
import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.util.Log;
import android.widget.RemoteViews;
import net.micode.notes.R;
import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.NoteColumns;
import net.micode.notes.tool.ResourceParser;
import net.micode.notes.ui.NoteEditActivity;
import net.micode.notes.ui.NotesListActivity;
public abstract class NoteWidgetProvider extends AppWidgetProvider {
package net.micode.notes.widget;// 包声明，指明代码属于哪个包
import android.app.PendingIntent;// 导入PendingIntent类
import android.appwidget.AppWidgetManager;// 导入AppWidgetManager类
import android.appwidget.AppWidgetProvider;// 导入AppWidgetProvider类
import android.content.ContentValues;// 导入ContentValues类
import android.content.Context;// 导入Context类
import android.content.Intent;// 导入Intent类
import android.database.Cursor;// 导入Cursor类
import android.util.Log;// 导入Log类
import android.widget.RemoteViews;// 导入RemoteViews类
import net.micode.notes.R;// 导入R类，用于访问资源
import net.micode.notes.data.Notes;// 导入Notes类
import net.micode.notes.data.Notes.NoteColumns;// 导入NoteColumns类
import net.micode.notes.tool.ResourceParser;// 导入ResourceParser类
import net.micode.notes.ui.NoteEditActivity;// 导入NoteEditActivity类
import net.micode.notes.ui.NotesListActivity;// 导入NotesListActivity类
public abstract class NoteWidgetProvider extends AppWidgetProvider {// 声明一个抽象类NoteWidgetProvider，继承自AppWidgetProvider
public static final String [] PROJECTION = new String [] {
NoteColumns.ID,
NoteColumns.BG_COLOR_ID,
NoteColumns.SNIPPET
};
};// 定义一个常量数组PROJECTION，包含NoteColumns的ID、BG_COLOR_ID和SNIPPET
public static final int COLUMN_ID = 0;
public static final int COLUMN_BG_COLOR_ID = 1;
public static final int COLUMN_SNIPPET = 2;
public static final int COLUMN_ID = 0;// 定义COLUMN_ID常量，值为0
public static final int COLUMN_BG_COLOR_ID = 1;// 定义COLUMN_BG_COLOR_ID常量，值为1
public static final int COLUMN_SNIPPET = 2;// 定义COLUMN_SNIPPET常量，值为2
private static final String TAG = "NoteWidgetProvider";
private static final String TAG = "NoteWidgetProvider";// 定义TAG常量，用于日志记录
@Override
public void onDeleted(Context context, int[] appWidgetIds) {
ContentValues values = new ContentValues();
values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
public void onDeleted(Context context, int[] appWidgetIds) {// 重写onDeleted方法，当小部件被删除时调用
ContentValues values = new ContentValues();// 创建ContentValues对象
values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);// 将WIDGET_ID列的值设置为INVALID_APPWIDGET_ID
for (int i = 0; i < appWidgetIds.length; i++) {
context.getContentResolver().update(Notes.CONTENT_NOTE_URI,
values,
NoteColumns.WIDGET_ID + "=?",
new String[] { String.valueOf(appWidgetIds[i])});
new String[] { String.valueOf(appWidgetIds[i])});// 更新数据库，将指定小部件ID的WIDGET_ID列设置为INVALID_APPWIDGET_ID
}
}
private Cursor getNoteWidgetInfo(Context context, int widgetId) {
private Cursor getNoteWidgetInfo(Context context, int widgetId) {// 定义getNoteWidgetInfo方法，获取小部件信息
return context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
PROJECTION,
NoteColumns.WIDGET_ID + "=? AND " + NoteColumns.PARENT_ID + "<>?",
new String[] { String.valueOf(widgetId), String.valueOf(Notes.ID_TRASH_FOLER) },
null);
null);// 查询数据库，返回符合条件的Cursor对象
}
protected void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
protected void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {// 定义update方法，更新小部件
update(context, appWidgetManager, appWidgetIds, false);
}
}// 调用重载的update方法，传入false作为privacyMode参数
private void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds,
boolean privacyMode) {
boolean privacyMode) {// 定义重载的update方法，更新小部件，传入privacyMode参数
for (int i = 0; i < appWidgetIds.length; i++) {
if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) {
int bgId = ResourceParser.getDefaultBgId(context);
String snippet = "";
Intent intent = new Intent(context, NoteEditActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
intent.putExtra(Notes.INTENT_EXTRA_WIDGET_ID, appWidgetIds[i]);
intent.putExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, getWidgetType());
Cursor c = getNoteWidgetInfo(context, appWidgetIds[i]);
if (c != null && c.moveToFirst()) {
if (c.getCount() > 1) {
Log.e(TAG, "Multiple message with same widget id:" + appWidgetIds[i]);
if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) {// 如果小部件ID有效
int bgId = ResourceParser.getDefaultBgId(context);// 获取默认背景ID
String snippet = "";// 初始化snippet字符串
Intent intent = new Intent(context, NoteEditActivity.class);// 创建Intent对象，指向NoteEditActivity
intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);// 设置Intent标志，确保活动位于任务栈顶部
intent.putExtra(Notes.INTENT_EXTRA_WIDGET_ID, appWidgetIds[i]);// 添加额外数据，指定小部件ID
intent.putExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, getWidgetType());// 添加额外数据，指定小部件类型
Cursor c = getNoteWidgetInfo(context, appWidgetIds[i]);// 获取小部件信息的Cursor对象
if (c != null && c.moveToFirst()) {// 如果Cursor不为空且移动到第一条记录
if (c.getCount() > 1) {// 如果记录数大于1
Log.e(TAG, "Multiple message with same widget id:" + appWidgetIds[i]);// 记录错误日志
c.close();
return;
}
snippet = c.getString(COLUMN_SNIPPET);
bgId = c.getInt(COLUMN_BG_COLOR_ID);
intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID));
snippet = c.getString(COLUMN_SNIPPET);// 获取SNIPPET列的值
bgId = c.getInt(COLUMN_BG_COLOR_ID);// 获取BG_COLOR_ID列的值
intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID)); // 添加额外数据，指定记录ID
intent.setAction(Intent.ACTION_VIEW);
} else {
snippet = context.getResources().getString(R.string.widget_havenot_content);
intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
}
}// 设置Intent动作为ACTION_INSERT_OR_EDIT
if (c != null) {
c.close();
}
RemoteViews rv = new RemoteViews(context.getPackageName(), getLayoutId());
RemoteViews rv = new RemoteViews(context.getPackageName(), getLayoutId());// 创建RemoteViews对象，指定布局ID
rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId));
intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId);
intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId);// 设置背景图片资源ID
/**
* Generate the pending intent to start host for the widget
*/
PendingIntent pendingIntent = null;
if (privacyMode) {
if (privacyMode) { // 如果隐私模式
rv.setTextViewText(R.id.widget_text,
context.getString(R.string.widget_under_visit_mode));
context.getString(R.string.widget_under_visit_mode));// 设置文本视图内容为隐私模式提示
pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], new Intent(
context, NotesListActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);
} else {
rv.setTextViewText(R.id.widget_text, snippet);
pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], intent,
PendingIntent.FLAG_UPDATE_CURRENT);
PendingIntent.FLAG_UPDATE_CURRENT);// 创建PendingIntent对象，指向NoteEditActivity
}
rv.setOnClickPendingIntent(R.id.widget_text, pendingIntent);
rv.setOnClickPendingIntent(R.id.widget_text, pendingIntent);// 设置文本视图的点击
appWidgetManager.updateAppWidget(appWidgetIds[i], rv);
}
}
}
protected abstract int getBgResourceId(int bgId);
protected abstract int getBgResourceId(int bgId);// 声明抽象方法getBgResourceId，获取背景资源ID
protected abstract int getLayoutId();
protected abstract int getLayoutId();// 声明抽象方法getLayoutId，获取布局ID
protected abstract int getWidgetType();
protected abstract int getWidgetType();// 声明抽象方法getWidgetType
}

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