Question

I am learning AsyncTask,I tried to print Toast message inside doInBackground method,is it possible to use Toast messages in it?Code is running fine is Toast message is removed..
getting Error as Cant create handler inside thread that has not called Looper.prepare()

Answer 1

Got it 🙂

protected class Asyctast extends AsyncTask<String, Integer, Integer>
{

    @Override
    protected Integer doInBackground(String... params) {
        // TODO Auto-generated method stub


        Log.d("Asynctask", ""+params);  
Looper.prepare();   

         ImageThumbnailsActivity m = new ImageThumbnailsActivity();

            Toast.makeText(ImageThumbnailsActivity.this,""+params ,Toast.LENGTH_SHORT).show();
            final Dialog dialog_options = new Dialog(ImageThumbnailsActivity.this);
            dialog_options.setContentView(R.layout.option);
            dialog_options.show();
        Looper.loop();
        return null;

    }       
}