HVTHandler

Utility methods that provide advanced functionality when using Runnables on Android.

Sometimes you want to post a runnable and wait until it finishes, or even get a return value. This type of functionality and even more advanced features can be provided by Future and Executors. However, it's quite common that you just want to stick with Handlers, HandlerThread in order to do simpler tasks. These methods will make your life easier.

Post runnable and wait

void yourMethod() {
    // the call will block
    HVTHandler.postAndWait(mHandler, new Runnable() {
                @Override
                public void run() {
                    // do stuff on the other thread
                }
            });
    // do stuff on the calling thread after the runnable has finished
  }

Post runnable and get a return value

void yourMethod() {
        RunnableResult<Integer> result = HVTHandler.post(mHandler, new RunnableValue<Integer>() {
            @Override
            public void run() {
                //do stuff on the other thread and update the return value
                value = 2;
            }
        });
        // Do other stuff on the calling thread, while the runanble is running
        
        // block until it finishes and get the return value
        int resultValue = result.get();
    }