单击小部件播放声音 [英] Play sound on widget click
本文介绍了单击小部件播放声音的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
这是我的代码,它打开了主要活动,但我似乎找不到一种使小部件播放声音的方法.
Here's my code, it opens the main activity, but I can't seem to find a way to just make the widget play a sound.
我试图:
- 向小部件添加按钮(无效)
- 在主要活动中添加
OnClickListener
(可以,但是会打开主要活动,我只希望声音不是活动) - 编写一个新方法来播放带有
MediaPlayer
sound.start()
方法的声音并调用它(无效)
- add a button to the widget (didn't work)
- add an
OnClickListener
to the main activity (which works but it opens the main activity and I just want the sound not the activity) - write a new method to play the sound with the
MediaPlayer
sound.start()
method in it and calling it (didn't work)
我已经查看了android dev页面,我只能找到如何使用MediaPlayer
,但是它并没有播放小部件的音频.
I've looked in the android dev page and all I was able to find was how to use the MediaPlayer
, but it says nothing about playing audio from a widget.
import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.Context;
import android.content.Intent;
import android.widget.RemoteViews;
public class ClockWidget extends AppWidgetProvider {
public static String ACTION_WIDGET_RECEIVER = "ActionReceiverWidget";
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
super.onUpdate(context, appWidgetManager, appWidgetIds);
final int N = appWidgetIds.length;
for (int i=0; i<N; i++) {
int appWidgetId = appWidgetIds[i];
Intent intent = new Intent(context, MainActivity.class);
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent,PendingIntent.FLAG_UPDATE_CURRENT);
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.clock_widget_layout);
views.setOnClickPendingIntent(R.id.AnalogClock0, pendingIntent);
appWidgetManager.updateAppWidget(appWidgetId, views);
}
}
}
推荐答案
要做到这一点,您需要使用service
这样称呼
To do it you need to use a service
which you call like this
Intent svc=new Intent(this, BackgroundSoundService.class);
startService(svc);
public class BackgroundSoundService extends Service {
private static final String TAG = null;
MediaPlayer player;
public IBinder onBind(Intent arg0) {
return null;
}
@Override
public void onCreate() {
super.onCreate();
player = MediaPlayer.create(this, R.raw.trck);
//configure other settings
}
public int onStartCommand(Intent intent, int flags, int startId) {
player.start();
return 1;
}
public void onStart(Intent intent, int startId) {
// TO DO
}
public IBinder onUnBind(Intent arg0) {
// TO DO Auto-generated method
return null;
}
public void onStop() {
}
public void onPause() {
}
@Override
public void onDestroy() {
player.stop();
player.release();
}
}
请在Manifest
中注册此服务.
<service android:enabled="true" android:name=".BackgroundSoundService" />
您可以在小部件中做类似的事情
and you could do smth like this in widget
public class ClockWidget extends AppWidgetProvider {
private final String ACTION_WIDGET_PLAY = "PlaySong";
private final String ACTION_WIDGET_PAUSE = "PauseSong";
private final String ACTION_WIDGET_STOP = "StopSong";
private final int INTENT_FLAGS = 0;
private final int REQUEST_CODE = 0;
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
RemoteViews controlButtons = new RemoteViews(context.getPackageName(),
R.layout.main);
Intent playIntent = new Intent(this, BackgroundSoundService.class);
Intent pauseIntent = new Intent(this, BackgroundSoundService.class);
Intent stopIntent = new Intent(this, BackgroundSoundService.class);
PendingIntent playPendingIntent = PendingIntent.getService(
this, REQUEST_CODE, playIntent, INTENT_FLAGS);
PendingIntent pausePendingIntent = PendingIntent.getService(
this, REQUEST_CODE, pauseIntent, INTENT_FLAGS);
PendingIntent stopPendingIntent = PendingIntent.getService(
this, REQUEST_CODE, stopIntent, INTENT_FLAGS);
controlButtons.setOnClickPendingIntent(
R.id.btnPlay, playPendingIntent);
controlButtons.setOnClickPendingIntent(
R.id.btnPause, pausePendingIntent);
controlButtons.setOnClickPendingIntent(
R.id.btnStop, stopPendingIntent);
appWidgetManager.updateAppWidget(appWidgetIds, controlButtons);
}
}
这篇关于单击小部件播放声音的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
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