CODEWITHSUNDEEP
javaandroidmultithreadinguser-interface
Paul
Paul

Reputation: 5974

Edit code to run on UI thread?

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);
}

Upvotes: 0

Views: 211

Answers (2)

Mikita Belahlazau
Mikita Belahlazau

Reputation: 15434

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.

Upvotes: 1

Paul
Paul

Reputation: 5974

Got it working, I just had to run that write line in a UI thread, even though I thought it was?!

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

        dataReceived = new String(data);
        ((MyBAIsWrapper) bis).renew(data);

        runOnUiThread(new Runnable(){
            @Override
            public void run() { 
                mSession.write(dataReceived);       
            }});

        viewHandler.post(updateView);
    }

Upvotes: 1

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