From cedeb819da7af8be011c4e31ba8b1d912d0b6e8a Mon Sep 17 00:00:00 2001 From: LZ <2929718516@qq.com> Date: Wed, 27 Nov 2024 11:56:34 +0800 Subject: [PATCH] =?UTF-8?q?=E6=B3=A8=E9=87=8A=E4=BB=A3=E7=A0=81NoteWidgetP?= =?UTF-8?q?rovider?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- NoteWidgetProvider.txt | 144 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 NoteWidgetProvider.txt diff --git a/NoteWidgetProvider.txt b/NoteWidgetProvider.txt new file mode 100644 index 0000000..fde672b --- /dev/null +++ b/NoteWidgetProvider.txt @@ -0,0 +1,144 @@ +/* + * 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.widget; +// 导入必要的Android类和界面 +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; + +// 定义一个抽象类NoteWidgetProvider，继承自AppWidgetProvider，用于管理Note应用的小部件 +public abstract class NoteWidgetProvider extends AppWidgetProvider { + // 定义查询数据库时需要的列 + public static final String [] PROJECTION = new String [] { + NoteColumns.ID, + NoteColumns.BG_COLOR_ID, + NoteColumns.SNIPPET + }; + + // 定义列索引常量 + public static final int COLUMN_ID = 0; + public static final int COLUMN_BG_COLOR_ID = 1; + public static final int COLUMN_SNIPPET = 2; + + // 定义日志标签 + private static final String TAG = "NoteWidgetProvider"; + + // 当小部件被删除时调用的方法，用于更新数据库中的widget_id字段 + @Override + public void onDeleted(Context context, int[] appWidgetIds) { + ContentValues values = new ContentValues(); + values.put(NoteColumns.WIDGET_ID, AppWidgetManager.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])}); + } + } + + // 获取小部件相关的笔记信息 + private Cursor getNoteWidgetInfo(Context context, int widgetId) { + 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); + } + + // 更新小部件显示，可以带隐私模式参数 + protected void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { + update(context, appWidgetManager, appWidgetIds, false); + } + + // 更新小部件显示的私有方法，包含隐私模式参数 + private void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds, + boolean privacyMode) { + for (int i = 0; i < appWidgetIds.length; i++) { + if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) { + int bgId = ResourceParser.getDefaultBgId(context); // 默认背景ID + String snippet = ""; // 笔记摘要 + Intent intent = new Intent(context, NoteEditActivity.class); // 编辑笔记的Intent + intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP); // 设置Intent标志 + intent.putExtra(Notes.INTENT_EXTRA_WIDGET_ID, appWidgetIds[i]); // 附加小部件ID + intent.putExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, getWidgetType()); // 附加小部件类型 + + // 查询数据库获取笔记信息 + 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]); + c.close(); + return; + } + snippet = c.getString(COLUMN_SNIPPET); // 获取摘要 + bgId = c.getInt(COLUMN_BG_COLOR_ID); // 获取背景ID + intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID)); // 附加笔记ID + intent.setAction(Intent.ACTION_VIEW); // 设置Intent动作为查看 + } else { + snippet = context.getResources().getString(R.string.widget_havenot_content); // 默认提示文本 + intent.setAction(Intent.ACTION_INSERT_OR_EDIT); // 设置Intent动作为插入或编辑 + } + + if (c != null) { + c.close(); // 关闭Cursor + } + + // 创建RemoteViews对象，用于更新小部件视图 + RemoteViews rv = new RemoteViews(context.getPackageName(), getLayoutId()); + rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId)); // 设置背景资源ID + intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId); // 附加背景ID + + // 生成PendingIntent，用于小部件点击事件 + PendingIntent pendingIntent = null; + if (privacyMode) { + rv.setTextViewText(R.id.widget_text, context.getString(R.string.widget_under_visit_mode)); // 隐私模式文本 + pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], new Intent( + context, NotesListActivity.class), PendingIntent.FLAG_UPDATE_CURRENT); // 笔记列表的PendingIntent + } else { + rv.setTextViewText(R.id.widget_text, snippet); // 设置文本内容 + pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], intent, // 编辑笔记的PendingIntent + PendingIntent.FLAG_UPDATE_CURRENT); + } + + rv.setOnClickPendingIntent(R.id.widget_text, pendingIntent); // 设置点击事件 + appWidgetManager.updateAppWidget(appWidgetIds[i], rv); // 更新小部件 + } + } + } + + // 抽象方法，用于获取背景资源ID + protected abstract int getBgResourceId(int bgId); + + // 抽象方法，用于获取布局资源ID + protected abstract int getLayoutId(); + + // 抽象方法，用于获取小部件类型 + protected abstract int getWidgetType(); +} \ No newline at end of file