Warum der Alarmmanager nicht funktioniert?

Question

Ich habe einen Dienst, der das Hintergrundbild ändert. Ich habe Alarm Manager hinzugefügt, um es jeden Tag zu wiederholen, aber es funktioniert nicht.

On Button klicken:

ON1 ="ON"; 
Customthemes.AppPrefrances.getInstance(getActivity()).setON1(ON1); 
Intent start = new Intent (getActivity(),Changeimage.class); 
getActivity().startService(start); 

Auf startcommand in Service:

Calendar calendar = Calendar.getInstance(); 
     int day = calendar.get(Calendar.DAY_OF_WEEK); 

     switch (day) { 


      case Calendar.FRIDAY: 
       Bitmap bitmap5 = BitmapFactory.decodeFile(check5); 
       WallpaperManager myWallpaperManager1 
         = WallpaperManager.getInstance(getApplicationContext()); 
       try { 
        myWallpaperManager1.setBitmap(bitmap5); 
       } catch (IOException e) { 
        // TODO Auto-generated catch block 
        e.printStackTrace(); 
       } 
       break; 
      case Calendar.MONDAY: 
       Bitmap bitmap1 = BitmapFactory.decodeFile(check); 
       WallpaperManager myWallpaperManager2 
         = WallpaperManager.getInstance(getApplicationContext()); 
       try { 
        myWallpaperManager2.setBitmap(bitmap1); 
       } catch (IOException e) { 
        // TODO Auto-generated catch block 
        e.printStackTrace(); 
       } 
       break; 
      case Calendar.SATURDAY: 
       Bitmap bitmap6 = BitmapFactory.decodeFile(check6); 
       WallpaperManager myWallpaperManager3 
         = WallpaperManager.getInstance(getApplicationContext()); 
       try { 
        myWallpaperManager3.setBitmap(bitmap6); 
       } catch (IOException e) { 
        // TODO Auto-generated catch block 
        e.printStackTrace(); 
       } 
       break; 
      case Calendar.SUNDAY: 
       Bitmap bitmap7 = BitmapFactory.decodeFile(check7); 
       WallpaperManager myWallpaperManager4 
         = WallpaperManager.getInstance(getApplicationContext()); 
       try { 
        myWallpaperManager4.setBitmap(bitmap7); 
       } catch (IOException e) { 
        // TODO Auto-generated catch block 
        e.printStackTrace(); 
       } 
       break; 
      case Calendar.THURSDAY: 
       Bitmap bitmap4 = BitmapFactory.decodeFile(check4); 
       WallpaperManager myWallpaperManager5 
         = WallpaperManager.getInstance(getApplicationContext()); 
       try { 
        myWallpaperManager5.setBitmap(bitmap4); 
       } catch (IOException e) { 
        // TODO Auto-generated catch block 
        e.printStackTrace(); 
       } 
       break; 
      case Calendar.TUESDAY: 
       Bitmap bitmap2 = BitmapFactory.decodeFile(check2); 
       WallpaperManager myWallpaperManager6 
         = WallpaperManager.getInstance(getApplicationContext()); 
       try { 
        myWallpaperManager6.setBitmap(bitmap2); 
       } catch (IOException e) { 
        // TODO Auto-generated catch block 
        e.printStackTrace(); 
       } 
       break; 
      case Calendar.WEDNESDAY: 
       Bitmap bitmap3 = BitmapFactory.decodeFile(check3); 
       WallpaperManager myWallpaperManager7 
         = WallpaperManager.getInstance(getApplicationContext()); 
       try { 
        myWallpaperManager7.setBitmap(bitmap3); 
       } catch (IOException e) { 
        // TODO Auto-generated catch block 
        e.printStackTrace(); 
       } 
       break; 
     } 
     Calendar calendar2 = Calendar.getInstance(); 
     calendar2.setTimeInMillis(System.currentTimeMillis()); 
     calendar2.set(Calendar.SECOND, 0); 
     calendar2.set(Calendar.MINUTE, 0); 
     calendar2.set(Calendar.HOUR, 0); 
     calendar2.set(Calendar.AM_PM, Calendar.AM); 
     calendar2.add(Calendar.DAY_OF_MONTH, 1); 

     Intent intentalarm = new Intent(getApplicationContext(), AlarmReceiver.class); 
     intentalarm.setAction("packagename.ACTION"); 
     PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 
       0, intentalarm, PendingIntent.FLAG_UPDATE_CURRENT); 
     AlarmManager alarm = (AlarmManager) getApplicationContext().getSystemService(Context.ALARM_SERVICE); 
     alarm.cancel(pendingIntent); 
     alarm.setRepeating(AlarmManager.RTC_WAKEUP, calendar2.getTimeInMillis(), 24 * 60 * 60 * 1000, pendingIntent); 
    } 
    return START_STICKY; 

AlarmReceiver:

@Override 
public void onReceive(Context context, Intent intent) { 


    String action = intent.getAction(); 
    if (SOMEACTION.equals(action)) { 
     Intent start = new Intent (context,Changeimage.class); 
     context.startService(start); 
    } 
} 

Was das Problem sein kann? Warum funktioniert es nicht?

Answer 1

Ihr Empfänger in manifest registrieren ähnliche

<receiver android:name=".AlarmReceiver" /> 

Wert senden ähnliche

Intent intentalarm = new Intent(getApplicationContext(), AlarmReceiver.class); 
      intentalarm.putExtra("packagename" 

); 

wie diese

@Override 
public void onReceive(Context context, Intent intent) { 


    String action = intent.getStringExtra("packagename"); 
    if (SOMEACTION.equals(action)) { 
     Intent start = new Intent (context,Changeimage.class); 
     context.startService(start); 
    } 
}