生成桌面插件

package org.app.qqmusicplayer;

import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.RemoteViews;

public class AppWidget extends AppWidgetProvider {
    private static final String PLAY_ACTION = "com.app.playmusic";
    private static final String NEXT_ACTION = "com.app.nextone";
    private static final String lAST_ACTION = "com.app.lastone";
    private static final String START_APP = "com.app.startapp";
    @Override
    public void onDeleted(Context context, int[] appWidgetIds) {
        Log.i("info", "onDeleted...");
        super.onDeleted(context, appWidgetIds);
    }

    @Override
    public void onDisabled(Context context) {
        Log.i("info", "onDisabled...");
        super.onDisabled(context);
    }

    @Override
    public void onEnabled(Context context) {
        Log.i("info", "onEnabled...");
        super.onEnabled(context);
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.appwidgetlayout);
        if (intent.getAction().equals("com.app.pause")){
            views.setImageViewResource(R.id.playButton, R.drawable.play_button);
        } else if (intent.getAction().equals("com.app.play")){
            views.setImageViewResource(R.id.playButton, R.drawable.pause_button);
        } else if (intent.getAction().equals("com.app.musictitle")){
            String musicName = intent.getExtras().getString("title");
            if (musicName.length()>6){
                musicName = musicName.substring(0, 5)+"...";
            }
            views.setTextViewText(R.id.title, musicName);
        }
        AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context); 
        ComponentName componentName = new ComponentName(context,AppWidget.class); 
        appWidgetManager.updateAppWidget(componentName, views);
        Log.i("info", "onReceive...");
        super.onReceive(context, intent);
    }

    @Override
    public void onUpdate(Context context, AppWidgetManager appWidgetManager,
            int[] appWidgetIds) {
        Log.i("info", "onUpdate...");
        RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.appwidgetlayout);
        /**设置播放键的动作*/
        views.setImageViewResource(R.id.playButton, R.drawable.play_button);
        Intent playIntent = new Intent(PLAY_ACTION);
        PendingIntent playPending = PendingIntent.getBroadcast(context, 0, playIntent, 0);
        views.setOnClickPendingIntent(R.id.playButton, playPending);
        /**设置上一首按钮的动作*/
        Intent lastIntent = new Intent(lAST_ACTION);
        PendingIntent lastPending = PendingIntent.getBroadcast(context, 0, lastIntent, 0);
        views.setOnClickPendingIntent(R.id.lastButton, lastPending);
        /**设置下一首按钮的动作*/
        Intent nextIntent = new Intent(NEXT_ACTION);
        PendingIntent nextPending = PendingIntent.getBroadcast(context, 0, nextIntent, 0);
        views.setOnClickPendingIntent(R.id.nextButton, nextPending);
        
        /**获取正在播放的音乐名*/
        Intent intent = new Intent();
        intent.setAction(START_APP);
        context.sendBroadcast(intent);
        
        appWidgetManager.updateAppWidget(appWidgetIds, views);
    }

}