Accessing views from other thread (Android)

Question

I\'m developing an android application, and I have a button which starts/pauses certain simulation process. While this process is running, I need to output some data from it

Answer 1

They can be accessed but only read-only. What you mean is you want to trigger changes from a thread on the views. From the worker thread (non-UI) these changes cannot be triggered, you need to use .runOnUiThread() or use Handlers. Use these at the point where you want to show something, e.g update the textview in .runOnUiThread(),

Example:

myThread = new Thread()
        {

            @Override
            public void run() {
                //yourOperation
                MyActivity.this.runOnUiThread(new Runnable(){

                    @Override
                    public void run() {
                        if(e!=null)
                        {
                            myTextView.setText("something");
                        }

                    }});
                super.run();
            }
        };
        myThread.start();