UI working problem in async task in Android

Question

I was going to set the background of a linear layout from the server URL.

On the main thread, I couldn't get images from the server.

On the AsyncTask, I couldn't set the background of the linear layout.

How can I solve this problem?

Thank you.

score 0 · Answer 1 · answered Mar 19 '20 at 17:13

0

Activities had a runOnUiThread(Runnable action) method where you can update the UI.

AsyncTask:

@Override
protected void onPostExecute(String result) {
    listener.updateUi()
}

Activity:

@Override
public void updateUi(String result){
    runOnUiThread(() -> {
        // Change the UI here     
    });
}

answered Mar 19 '20 at 17:13

aiqency

Thank you. But I found a simple solution to the problem by googling. – webelf000 Mar 19 '20 at 17:46

score 0 · Accepted Answer · answered Mar 19 '20 at 17:37

0

I solved the problem just as follows by myself.

Thank you for your help.

answered Mar 19 '20 at 17:37

webelf000

2 Answers2