/* * Copyright (c) 2010 - 2011, The MiCode Open Source Community (www.micode.net) * * Licensed under the Apache License, Version 2.0 (the "License"); * 表示该代码遵循Apache License 2.0开源协议,只有在遵守此协议的情况下才能使用该代码 * 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; import android.appwidget.AppWidgetManager; import android.content.Context; import net.micode.notes.R; import net.micode.notes.data.Notes; import net.micode.notes.tool.ResourceParser; // NoteWidgetProvider_4x类继承自NoteWidgetProvider,用于特定尺寸(比如4x大小)的桌面小部件相关功能实现 public class NoteWidgetProvider_4x extends NoteWidgetProvider { // 重写父类的onUpdate方法,当桌面小部件需要更新时会调用此方法 // 参数context表示应用上下文,用于获取各种系统服务等资源 // appWidgetManager用于管理桌面小部件相关操作,比如更新小部件的UI等 // appWidgetIds是需要更新的小部件的ID数组 @Override public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { // 调用父类的update方法来执行一些通用的或者在更新小部件时需要做的基础操作 super.update(context, appWidgetManager, appWidgetIds); } // 获取该桌面小部件对应的布局资源ID,这里返回的是对应4x小部件布局的资源ID protected int getLayoutId() { return R.layout.widget_4x; } // 根据传入的背景资源ID(bgId)获取该4x桌面小部件对应的背景资源ID // 可能不同的背景ID对应不同的样式、图片等背景相关资源,通过ResourceParser工具类来获取具体资源 @Override protected int getBgResourceId(int bgId) { return ResourceParser.WidgetBgResources.getWidget4xBgResource(bgId); } // 获取该桌面小部件的类型,这里返回的是代表4x小部件类型的标识(可能用于区分不同尺寸、不同类型的小部件) @Override protected int getWidgetType() { return Notes.TYPE_WIDGET_4X; } }