從活動上下文之外調用startActivity（） - 修復建議不工作

Question

我有一個鬧鐘應用程序 - 它適用於運行CM14我的摩托G3精絕，但字面上所有其他設備上我得到這個錯誤：

Unable to start service joelizsoftware.david.slide_puzzle_alarm_clock.RingtoneService@69b5bb9 with Intent { flg=0x10000000 cmp=joelizsoftware.david.slide_puzzle_alarm_clock/.RingtoneService (has extras) }: android.util.AndroidRuntimeException: Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want? 

我從SO其次建議，並在補充說：

ringtoneIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 

，但我仍然得到同樣的錯誤。有任何想法嗎？

public class Alarm_Receiver extends BroadcastReceiver { 
    @Override 
    public void onReceive(Context context, Intent intent) { 



     String extraString = intent.getExtras().getString("extra"); 
     String prefString = intent.getExtras().getString("savePref"); 



     Intent ringtoneIntent = new Intent(context, RingtoneService.class); 
     ringtoneIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 

     ringtoneIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT); 
     ringtoneIntent.putExtra("extra", extraString); 
     ringtoneIntent.putExtra("savePref", prefString); 



     context.startService(ringtoneIntent); 

    } 
} 

它毀了我的星期天

Answer 1

看來問題是相當的RingtoneService。如果您是從服務啓動的，則應將Intent.FLAG_ACTIVITY_NEW_TASK標誌添加到活動意圖中。

Answer 2

嘗試這樣的：

public class Alarm_Receiver extends BroadcastReceiver { 
@Override 
public void onReceive(Context context, Intent intent) { 



String extraString = intent.getExtras().getString("extra"); 
String prefString = intent.getExtras().getString("savePref"); 

    Intent i = new Intent(); 
    i.setClassName("com.test", "com.test.RingtoneService"); 
    i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 
    i.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT); 
    i.putExtra("extra", extraString); 
    i.putExtra("savePref", prefString); 
    context.startActivity(i); 




context.startService(ringtoneIntent); 

}