Android - Stop AsyncTask when back button is pressed and return to previous Activity

Question

I\'ve an AsyncTask and I want it to stip execution when back button is pressed. I also want the app to return to the previous displayed Activity. It seems I\'ve managed in stop

Answer 1

In your activity, override Back Button, stop the AsyncTask in it, and call finish for current activity.

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK) {
         MyTask.cancel();
      IscrizioniActivity.this.finish();
        return true;
    }
    return super.onKeyDown(keyCode, event);
}

Answer 2

Try this one...

progress_dialog.setCancelable(true);
progress_dialog.setOnCancelListener(new OnCancelListener() {

    @Override
    public void onCancel(DialogInterface dialog) {
        // TODO Auto-generated method stub
        YourActivity.this.finish();
        }
    });

Answer 3

pd.setCancelable(true);
    pd.setOnCancelListener(cancelListener);
    bCancelled=false;

 pd is your progressdialog box

and now use cancelListner

    OnCancelListener cancelListener=new OnCancelListener(){
    @Override
    public void onCancel(DialogInterface arg0){
        bCancelled=true;
        finish();
    }
};

Answer 4

Have you tried adding a finish() call in the onDismiss() method:

public void onDismiss(DialogInterface dialog) {
    this.cancel(true);
    IscrizioniActivity.this.finish();
}