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@ -33,20 +33,26 @@ import net.micode.notes.ui.NoteEditActivity;
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import net.micode.notes.ui.NotesListActivity;
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public abstract class NoteWidgetProvider extends AppWidgetProvider {
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// 定义查询笔记信息的列
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public static final String [] PROJECTION = new String [] {
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NoteColumns.ID,
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NoteColumns.BG_COLOR_ID,
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NoteColumns.SNIPPET
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NoteColumns.ID, // 笔记ID
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NoteColumns.BG_COLOR_ID, // 背景颜色ID
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NoteColumns.SNIPPET // 笔记摘要
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};
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public static final int COLUMN_ID = 0;
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public static final int COLUMN_BG_COLOR_ID = 1;
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public static final int COLUMN_SNIPPET = 2;
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// 定义列的索引
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public static final int COLUMN_ID = 0; // 笔记ID列索引
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public static final int COLUMN_BG_COLOR_ID = 1; // 背景颜色ID列索引
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public static final int COLUMN_SNIPPET = 2; // 笔记摘要列索引
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// 日志标签
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private static final String TAG = "NoteWidgetProvider";
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@Override
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public void onDeleted(Context context, int[] appWidgetIds) {
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// 当小部件被删除时,更新数据库中的小部件ID为无效值
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ContentValues values = new ContentValues();
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values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
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for (int i = 0; i < appWidgetIds.length; i++) {
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@ -57,6 +63,7 @@ public abstract class NoteWidgetProvider extends AppWidgetProvider {
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}
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}
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// 获取指定小部件ID的笔记信息
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private Cursor getNoteWidgetInfo(Context context, int widgetId) {
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return context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
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PROJECTION,
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@ -65,68 +72,94 @@ public abstract class NoteWidgetProvider extends AppWidgetProvider {
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null);
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}
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// 更新小部件
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protected void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
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update(context, appWidgetManager, appWidgetIds, false);
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}
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// 更新小部件,支持隐私模式
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// 更新应用小部件的方法
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private void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds,
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boolean privacyMode) {
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// 遍历所有的小部件ID
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for (int i = 0; i < appWidgetIds.length; i++) {
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// 检查小部件ID是否有效
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if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) {
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int bgId = ResourceParser.getDefaultBgId(context);
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String snippet = "";
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int bgId = ResourceParser.getDefaultBgId(context); // 获取默认背景ID
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String snippet = ""; // 笔记摘要
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Intent intent = new Intent(context, NoteEditActivity.class);
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intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
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intent.putExtra(Notes.INTENT_EXTRA_WIDGET_ID, appWidgetIds[i]);
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intent.putExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, getWidgetType());
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// 获取小部件的笔记信息
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Cursor c = getNoteWidgetInfo(context, appWidgetIds[i]);
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if (c != null && c.moveToFirst()) {
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// 检查是否有多个笔记使用相同的小部件ID
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if (c.getCount() > 1) {
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Log.e(TAG, "Multiple message with same widget id:" + appWidgetIds[i]);
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c.close();
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return;
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}
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snippet = c.getString(COLUMN_SNIPPET);
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bgId = c.getInt(COLUMN_BG_COLOR_ID);
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intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID));
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intent.setAction(Intent.ACTION_VIEW);
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snippet = c.getString(COLUMN_SNIPPET); // 获取笔记摘要
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bgId = c.getInt(COLUMN_BG_COLOR_ID); // 获取背景颜色ID
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intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID)); // 添加笔记ID
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intent.setAction(Intent.ACTION_VIEW); // 设置意图为查看笔记
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} else {
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// 如果没有找到笔记,显示默认提示信息
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snippet = context.getResources().getString(R.string.widget_havenot_content);
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intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
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intent.setAction(Intent.ACTION_INSERT_OR_EDIT); // 设置意图为插入或编辑笔记
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}
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if (c != null) {
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c.close();
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c.close(); // 关闭游标
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}
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// 创建RemoteViews对象,用于更新小部件布局
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RemoteViews rv = new RemoteViews(context.getPackageName(), getLayoutId());
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rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId));
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intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId);
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rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId)); // 设置背景图片
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intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId); // 添加背景ID到意图
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/**
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* Generate the pending intent to start host for the widget
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*/
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PendingIntent pendingIntent = null;
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if (privacyMode) {
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// 如果处于隐私模式,显示隐私提示信息
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rv.setTextViewText(R.id.widget_text,
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context.getString(R.string.widget_under_visit_mode));
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// 创建PendingIntent,点击时启动NotesListActivity
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pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], new Intent(
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context, NotesListActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);
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} else {
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// 显示笔记摘要
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rv.setTextViewText(R.id.widget_text, snippet);
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// 创建PendingIntent,点击时启动NoteEditActivity
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pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], intent,
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PendingIntent.FLAG_UPDATE_CURRENT);
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}
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// 设置点击事件
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rv.setOnClickPendingIntent(R.id.widget_text, pendingIntent);
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// 更新小部件
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appWidgetManager.updateAppWidget(appWidgetIds[i], rv);
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}
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}
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}
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// 获取背景资源ID
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// 定义一个受保护的抽象方法,用于获取背景资源的ID
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// 该方法接受一个整数类型的参数bgId,表示背景资源的标识符
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// 返回值是一个整数,表示对应的背景资源ID
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protected abstract int getBgResourceId(int bgId);
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// 获取布局ID
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// 定义一个受保护的抽象方法 getLayoutId
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// 该方法返回一个整数,通常用于标识布局资源的ID
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protected abstract int getLayoutId();
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// 获取小部件类型
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// 定义一个受保护的抽象方法,用于获取小部件的类型
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// 该方法没有具体的实现,需要在子类中实现
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// 返回类型为int,表示小部件的类型
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protected abstract int getWidgetType();
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}
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