ScheduledExecutorService定時週期執行指定的任務
阿新 • • 發佈：2019-01-02
- public ScheduledFuture<?> scheduleAtFixedRate(Runnable command,
- long initialDelay,
- long period,
- TimeUnit unit);
command：執行執行緒
initialDelay：初始化延時
period：兩次開始執行最小間隔時間
unit：計時單位
scheduledExecutorService = Executors.newSingleThreadScheduledExecutor();
scheduledExecutorService.scheduleAtFixedRate(new PagerViewScrollTaskRunable(), 1, 5,TimeUnit.SECONDS);
private Handler viewPagerHandler = new Handler(){//頁面檢視控制器
public void handleMessage(android.os.Message msg) {
vp_insert_banner.setCurrentItem(currentItem);
};
};
private class PagerViewScrollTaskRunable implements Runnable {//頁面檢視滾動工作執行緒類
public void run() {
synchronized (vp_insert_banner) {
currentItem = (currentItem + 1) % imageViews.size();
viewPagerHandler.obtainMessage().sendToTarget();
}
}
}