Android - howto pass data to the Runnable in runOnUiThread?

Question

I need to update some UI and do it inside of the UI thread by using runOnUiThread
Now the data for the UI comes from the other Thread, represented by

Answer 1

Here is a typical case where service callback is called to update a UI status string (TextView textStatus). The service may be threaded.

The sample combines checking if thread redirection is needed and the actual redirection:

   // service callbacks
    public void service_StatusTextChanged(final String s) {
        if( isOnUiThread() ) {
            textStatus.setText(s);
        } else {
            runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    textStatus.setText(s);
                }
            });
        }
    }

    static public boolean isOnUiThread() {
       return Thread.currentThread() == Looper.getMainLooper().getThread();
    }

See also How to check if running on UI thread in Android?