How to make HandlerThread backward compatible?

HandlerThread is a useful component in Android for managing threads, but it may not be available or fully functional in older versions of Android. To ensure backward compatibility, you can create a custom solution that mimics the behavior of HandlerThread using existing threading classes like Thread and Handler. Below is an example demonstrating how to implement a simple class that behaves similarly to HandlerThread.


        class MyHandlerThread {
            private Handler handler;
            private final Object lock = new Object();
            private Thread thread;
            private boolean running;

            public MyHandlerThread(final String name) {
                thread = new Thread(new Runnable() {
                    @Override
                    public void run() {
                        Looper.prepare();
                        synchronized (lock) {
                            running = true;
                            lock.notify();
                        }
                        Looper.loop();
                    }
                }, name);
            }

            public void start() {
                thread.start();
                synchronized (lock) {
                    while (!running) {
                        try {
                            lock.wait();
                        } catch (InterruptedException e) {
                            Thread.currentThread().interrupt();
                        }
                    }
                }
                handler = new Handler(thread.getLooper());
            }

            public void quit() {
                if (handler != null) {
                    handler.getLooper().quit();
                }
            }

            public Handler getHandler() {
                return handler;
            }
        }

How to make HandlerThread backward compatible?

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How to make HandlerThread backward compatible?

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