Finish the Activity After AsyncTask Completed in Android

Methode 1:

As AsyncTaskActivity is in separate file than LoginActivity, you cant finish LoginActivity by: Login.this.finish();

Instead you should pass the Activity Reference as parameter in the AsyncTaskActivity Class, like you can define following constructor:

private class AsyncTaskActivity extends AsyncTask<String, Void, String> {

Activity mActivity;

    public AsyncTaskActivity(Activity activity)    {

                 super();

         this.mActivity=activity;

    }

}

and whenever you want to finish the activity call

this.mActivity.finish();

Create AsyncTaskActivity's Object in LoginActivity by 

AsyncTaskActivity asynTask = new AsyncTaskActivity(LoginActivity.this);

Methode 2:

What you can try to do instead of calling context.finish(), why don't you do a callback interface like this:

public interface TaskCallback{

void done();

}

Then you implement this into your Activity

public Hello extends Activity implements TaskCallback{

    .....BUNCH OF ACTIVITY CODE.....

public void onCreate(Bundle savedInstanceState) {

    MyTask mt = new MyTask(this);

    mt.execute();

}

public void done() {

     finish();

}

}

And instead of having Context as a parameter you have TaskCallback

public class MyTask extends AsyncTask<Void, Void, Void> {

private TaskCallback mCallback;

public MyTask(TaskCallback callback) {

    mCallback = callback;

} 

//doinbackground, etc

    protected void onPostExecute() {

    mCallback.done();

}

There you go, it gives you more flexibility to custom each implementation.