Calling startActivity() from outside of an Activity?

Question

I'm using an `AlarmManager` to trigger an intent that broadcasts a signal. The following is my code: ``` AlarmManager mgr = (AlarmManager) getSystemService(Context.ALARM_SERVICE); Intent i = new Intent(this, Wakeup.class); try { PendingIntent pi = PendingIntent.getBroadcast(this, 0, i, 0); Long elapsed += // sleep time; mgr.set(AlarmManager.RTC_WAKEUP, elapsed, pi); } catch(Exception r) { Log.v(TAG, "RunTimeException: " + r); } ``` I'm calling this code from an `Activity`, so I don't know how I could be getting the following error... ``` ERROR/AndroidRuntime(7557): java.lang.RuntimeException: Unable to start receiver com.wcc.Wakeup: android.util.AndroidRuntimeException: Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want? ```

Accepted Answer

if your android version is below Android - 6 then you need to add this line otherwise it will work above Android - 6.

```
...
Intent i = new Intent(this, Wakeup.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
...
```

Calling startActivity() from outside of an Activity?

Solution

Problem