Android實現輪詢的三種方式
本文實例為大家分享了Android實現輪詢的方式,供大家參考,具體內容如下
1.通過rxjava實現(代碼中使用了Lambda表達式)
private static final int PERIOD = 10 * 1000;private static final int DELAY = 100;private Disposable mDisposable;/** * 定時循環任務 */private void timeLoop() { mDisposable = Observable.interval(DELAY, PERIOD, TimeUnit.MILLISECONDS) .map((aLong -> aLong + 1)) .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(aLong -> getUnreadCount());//getUnreadCount()執行的任務}//關閉定時任務if (mDisposable != null) mDisposable.dispose();
2.通過Handler實現
private Handler mHandler = new Handler(Looper.getMainLooper()); // 全局變量private Runnable mTimeCounterRunnable = new Runnable() { @Override public void run() {//在此添加需輪尋的接口getUnreadCount();//getUnreadCount()執行的任務 mHandler.postDelayed(this, 20 * 1000); }};//關閉定時任務mHandler.removeCallbacks(mTimeCounterRunnable);
3.使用Java的Timer和TimerTask實現
private static final int PERIOD = 10 * 1000;private static final int DELAY = 100;private Timer mTimer;private TimerTask mTimerTask;private void timeLoop2(){ mTimer = new Timer(); mTimerTask = new TimerTask() { @Override public void run() { //在此添加輪詢 } }; mTimer.schedule(mTimerTask,DELAY,PERIOD);}//關閉定時任務if (mTimer != null) mTimer.cancel();
以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支持好吧啦網。
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