How To Force The Change The Image Of A View Immediately After Calling Setimageresource?

I'm trying to change the image of a ImageView immediately after I click it. I tried using .setImageDrawable and calling .invalidate() on that view, without any success. I'm proba

Solution 1:

You can use sendMessageDelayed() method of handler to perform any task at a delay of some specific amount of time. and write the logic to setImageDrawable inside that handler

See the sample code

@OverridepublicvoidonClick(View v) {

        Messagemsg=newMessage();
        photoGridHandler.sendMessageDelayed(msg, 2000);// delay of 2000 milisecond = 2 second

    }


    privateHandlerphotoGridHandler=newHandler() {
        @OverridepublicvoidhandleMessage(Message msg) {

            photoGrid.setImageDrawable(myImage);

        };
    };

Solution 2:

Try using image.setBackgroundResource(R.drawable.newimage);. Place both the images in your drawable folder

Solution 3:

I had similar issues when mixing the UI thread and computations thread. I would recommend trying an AsyncTask and pass it imageView. Do your computations in the doInBackground of the asynctask and then in the onPostExecute change the image.

http://developer.android.com/reference/android/os/AsyncTask.html