将我的手机设置为静音模式

Question

I have a widget and i am trying to set my phone volume silent mode without using Activity

My widget class :

   public class MyWidget extends AppWidgetProvider {



  @Override
  public void onUpdate(Context context, AppWidgetManager appWidgetManager,
      int[] appWidgetIds) {


    ComponentName thisWidget = new ComponentName(context,
        MyWidget.class);
    int[] allWidgetIds = appWidgetManager.getAppWidgetIds(thisWidget);
    for (int widgetId : allWidgetIds) {



      RemoteViews remoteViews = new RemoteViews(context.getPackageName(),
          R.layout.widget_layout);

      Intent i = new Intent(context,mutee.class);
      PendingIntent i1 = PendingIntent.getActivity(context, 0, i, 0);
      remoteViews.setOnClickPendingIntent(R.id.imageButton4silent, i1);

    appWidgetManager.updateAppWidget(widgetId, remoteViews);
    }
  }
}

Now i want to use mutee class and set my phone volume silent I actually tried this but it doesnt work :

public class mutee  {

    private Context context;    


     mutee(Context context){
        this.context=context;
    }

    private void setRingerMode (int ringerMode){

        AudioManager e = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
        //ringerMode=0x00000002;//normal
        e.setRingerMode(ringerMode);


    }

     mutee() {
         setRingerMode(0x00000002);
    }

}

Answer 1

You can hold your application context in a reference which you can pass on to your helper class easily. In your context you need to pass that reference to your Mute.class

Code Snippet to Hold your application reference throught out the Application:-

public class YourApplication extends Application{
  static YourApplication yourapplication;

  public void onCreate() {
            super.onCreate();
            yourapplication = this;
   }
   public static YourApplication getApplication()
    {
            return yourapplication;
    }
  public void onTerminate() {
            // TODO Auto-generated method stub
            super.onTerminate();
    }
}

Now as yourapplication hold the context of your application,

You can call getSystemService() on it.

Code Snippet:-

 AudioManager am;
 am= (AudioManager)yourapplication.getSystemService(Context.AUDIO_SERVICE);
 am.setRingerMode(AudioManager.RINGER_MODE_SILENT);

You need to call YourApplication extends Application from your Manifest file

<application 
android:label="@string/app_name"
...
android:name="com.abc.demo.YourApplication"
...>