receiver

activity 실행

Intent i = new Intent(context, MainActivity.class);

i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

context.startActivity(i);

이미 실행중인 activity resume할때

Intent i = new Intent(context, MainActivity.class);

i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TOP);

context.startActivity(i);

tip) 실행중인 task 확인하기.

ActivityManager am = (ActivityManager) context.getSystemService(context.ACTIVITY_SERVICE);

List<ActivityManager.RunningTaskInfo> taskInfo = am.getRunningTasks(10);

ComponentName componentInfo = null;

for (RunningTaskInfo runningTaskInfo : taskInfo) {

if (runningTaskInfo.topActivity.getPackageName().equals(context.getPackageName())) {

componentInfo = runningTaskInfo.topActivity;

Log.v(TAG, "packageName : " + componentInfo.getPackageName());

Log.v(TAG, "className : " + componentInfo.getClassName());

if (componentInfo.getClassName().equals("com.example.lockedscreen.MainActivity")){

Log.v(TAG, "++ FLAG_ACTIVITY_CLEAR_TOP ++");

Intent i = new Intent(context, MainActivity.class);

i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TOP);

context.startActivity(i);

return;

}

}

}