Question

I am getting a wrong thread error, so I am thinking I need to be running invalidate from the UI thread. Usually I have something like:

public void run() {

                runOnUiThread(new Runnable() {
}});

But I need to name this runnable to reference it from a method. How do i incorporate runOnUiThread into this?

Handler viewHandler = new Handler();
Runnable updateView = new Runnable() {
@Override

public void run() {

    mEmulatorView.invalidate();

    if (statusBool == true) {
        for (int i = 1; i < dataReceived.length() - 1; i++) {

            if (dataReceived.charAt(i) == '>') {

                Log.d(TAG, "found >");
                deviceStatus = 0;
            }
            if (dataReceived.charAt(i) == '#'
                    && dataReceived.charAt(i - 1) != ')') {

                Log.d(TAG, "found #");
                deviceStatus = 1;
            }
            if ((i + 1) <= (dataReceived.length())
                    && dataReceived.charAt(i) == ')'
                    && dataReceived.charAt(i + 1) == '#') {

                Log.d(TAG, "found config )#");
                deviceStatus = 2;
            }

        }
        statusBool = false;
        viewHandler.postDelayed(updateView, 1000);

    }
}
};

calling it:

public void onDataReceived(int id, byte[] data) {

        dataReceived = new String(data);
        ((MyBAIsWrapper) bis).renew(data);
        mSession.write(dataReceived);
        viewHandler.post(updateView);
}

Answer 1

You don’t need to name it. If you want to post itself you can just use this keyword:

viewHandler.postDelayed(this, 1000);

UPDATE

Wrong thread error caused by mSession.write(dataReceived);. updateView doesn’t cause any problems. Try to wrap mSession.write to runnable and call it on ui thread.