Android how to implement executing Async task from runnable

Question

The documentation says that execute() must be called from a UI thread. But, since I am updating images every few seconds, I am using a Runnable. And in that, I define the operations that have to be executed. Starting(execute())ASyncTask is one of them. But, since ASyncTask is not supposed to be called from anything but the UI thread, how do I proceed?

Answer 1

just add runOnUiThread in Runnable for starting AsyncTask :

private Runnable updateImages= new Runnable() {
    public void run() {
        runOnUiThread(new Runnable() {
            public void run() { 
                // call your asynctask here 
            }
        }
    });
    //////YOUR CODE HERE
}

Answer 2

Possibly redesign your project to work with only AsyncTasks rather than a Runnable. I'm not sure how AsyncTask likes this behavior as well, but I have changed some UI stuff in AsyncTasks before.