package com.example.musicplayer;

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.widget.RemoteViews;
import com.example.musicPlayer_liuchunwang.R;

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

		super.onDeleted(context, appWidgetIds);
	}
	@Override
	public void onDisabled(Context context) {
		super.onDisabled(context);
	}
	@Override
	public void onEnabled(Context context) {
		super.onEnabled(context);
	}

	@Override
	public void onReceive(Context context, Intent intent) {
		RemoteViews views = new RemoteViews(context.getPackageName(),
				R.layout.appwidgetlayout);
		if (intent.getAction().equals("pause")) {
			views.setImageViewResource(R.id.playButton, R.drawable.play_button);
		} else if (intent.getAction().equals("play")) {
			views.setImageViewResource(R.id.playButton, R.drawable.pause_button);
		} else if (intent.getAction().equals("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);
		super.onReceive(context, intent);
	}
	@Override
	public void onUpdate(Context context, AppWidgetManager appWidgetManager,
			int[] appWidgetIds) {
		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);
	}
}