Calling setImageResource from AsyncTask multiple times

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0

Good day everyone.

I'm working with AsyncTasks and calling publishProgress(); from doInBackground() method. I'm pretty sure there's no error until here.

I need to change an ImageView's source, like in every 3 seconds from onProgressUpdate method.

If i only do this;

        agiz.setImageResource(R.drawable.image1);

initial image successfully changes to image1.

But if i try to do this (which is my goal actually)

        imageView.setImageResource(R.drawable.image1);

        try {
            Thread.sleep(3000);
        } catch (InterruptedException e) {
        }

        imageView.setImageResource(R.drawable.image2);

        try {
            Thread.sleep(3000);
        } catch (InterruptedException e) {
        }

        imageView.setImageResource(R.drawable.image3);

        try {
            Thread.sleep(3000);
        } catch (InterruptedException e) {
        }

imageView instantly turns to image3, no waiting nor showing image2.

What am i missing ?

Thanks in advance.

asked just now

Emre Acar

548

Calling setImageResource from AsyncTask multiple times