每5秒调用一次函数

Question

I'm trying to build a simple Android app and I need a function to be called every 5 seconds. I can't flipping figure it out. The function I need to call every 5 seconds is otherFunction()

   Handler mHideHandler = new Handler();

   Runnable mHideRunnable = new Runnable() {

    @Override
    public void run() {
        otherFunction();        
        mSystemUiHider.hide();


    }
};

Answer 1

You could refer to the following example:

Handler locationPrompt = new Handler(){

    @Override
    public void handleMessage(Message msg) {
        // TODO Auto-generated method stub
        if(msg.what==SUBJECT){
            onLocationChanged(location);
            sendEmptyMessageDelayed(SUBJECT, REFRESH);
        }
    }

};

when calling this method:

locationPrompt.sendEmptyMessage(SUBJECT);

where

final static long REFRESH = 10 * 1000;
final static int SUBJECT = 0;

So this method gets called every 10 seconds here.\\

Hope this helps.

Answer 2

看一下Timer类，特别是调度方法。