無法接收來自Android服務中的sharedPreference的更新值

Question

Iam因此問題持續了4個多小時，iam無法傳遞Service類中sharedPrefernce的更新值。

public class Background extends Service { 
..... 
..... 
public int onStartCommand(Intent intent, int flags, int startId) 
{ 
    return Service.START_STICKY; 
} 
.... 
.... 
private void callService() { 
    String prefCount=getSharedData("list_update_count"); 
    myb = new myBroad(); 
    Context context = this.getApplicationContext(); 
    myb.SetAlarm(context,prefCount); 
} 
.... 
.... 
public class myListener extends PhoneStateListener 
{ 
    @Override 
    public void onCallStateChanged(int state, String incomingNumber) 
    { 
     super.onCallStateChanged(state, incomingNumber); 
     if (state == TelephonyManager.CALL_STATE_IDLE) 
     { 
      String phoneNumber = incomingNumber; 
      callService(); 
     } 
    } 

} 

My BroadcastReceiver ----------------------------------------- -

public class myBroad extends BroadcastReceiver{ 
    ..... 
    ..... 
    ..... 
    public void onReceive(Context context, Intent intent) { 
    .... 
    ..... 
    } 
    public void SetAlarm(Context context,String prefCount){ 
     //here the prefCount is not receiving the updated value!! 
    buildToast(prefCount,context); 
    } 
..... 
} 

當我在強制停止後啓動應用程序時，正確獲得了來自sharedPreference的更新值。 謝謝...

Answer 1

你試試這個？

SharedPreferences preferences = getSharedPreferences("preferences", Context.MODE_MULTI_PROCESS); 

對不起，全球是我自己的類，它包含在我的項目中使用常量，更換Global.PREFERENCES你自己的SharedPreferences的名稱。

Answer 2

SharedPreferences pref = getSharedPreferences("MyPreference", 0); 
    String prefCount = pref.getString("list_update_count", 0) 

或者如果您使用的是默認sharedPreferences

SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(context); 
String prefCount = pref.getString("list_update_count", 0);