Let ScheduledThreadPoolExecutor execute tasks on UI thread

问题

How can I use a ScheduledThreadPoolExecutor and schedule a task which is always executed on the UI thread?

Currently, I do the following

    mScheduledTask = sBackgroundExecutor.scheduleAtFixedRate(new Runnable() {
        @Override
        public void run() {
            if (mActivity != null) {
                mActivity.runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        // do UI stuff
                    }
                });
            }
        }
    }, 0, 200, TimeUnit.MILLISECONDS);

This seems unnecessary and hard to read, but I couldn't find anything in the docs. Is it possible or is this the only way?

来源：https://stackoverflow.com/questions/29078627/let-scheduledthreadpoolexecutor-execute-tasks-on-ui-thread