Android : Object Cannot Be Added To An Existing List As Its Not Original Thread

I am working on an Android project in which I am working on chat functionality. In this, whenever a new message is received, I have to touch(literally) the screen, then only the ne

Solution 1:

It will be much easier if you would paste all stacktrace, but I am assuming that you are changing views not from main thread.

Use this to when calling methods that are doing something with views:

activity.runOnUiThread(new Runnable() {
    publicvoidrun() {
        methodThatIsDoingViewStuff();
    }
});