Android Timer implementation method [GO]

in theAndroid, frequently used timers are mainly implemented in the following ways:
One, adopted handler with thread sleep (long) method
Ii. >handler with style= font-family " postdelayed (Runnable, long) method
III, with handler and and timertask Span style= "font-family: Song Body" > method of combining.
here are the following:
The Sleep (long) method using Handle and thread
HandlerIt is used primarily to handle received messages. It's just the main way, of course .HandlerThere are other ways to do it, and it's interesting to find out .API, not too much to explain here.
1.Define aHandlerclass that is used to handle the receivedMessage.
Handler Handler = new Handler () {
public void Handlemessage (Message msg) {
//the things to do
Super.handlemessage (msg);
}
};
2.Create a new implementationRunnablethe thread class for the interface. as follows:
public class MyThread implements runnable{
@Override
public void Run () {
TODO auto-generated Method Stub
while (true) {
try {
Thread.Sleep (10000);//Thread pausedTenseconds, per millisecond
Message message=new message ();
Message.what=1;
Handler.sendmessage (message);//Send Message
} catch (Interruptedexception e) {
TODO auto-generated Catch block
E.printstacktrace ();
}
}
}
}
3.Add the following statement where you need to start the thread:
New Thread (New MyThread ()). Start ();
4.after the thread is started, the thread each10ssends a message once.
Second, using Handler postdelayed (Runnable, long) method
This implementation is relatively simple:
1. Handler handler=new Handler ();
Runnable runnable=new Runnable () {
@Override
public void Run () {
TODO auto-generated Method Stub
//the things to do
Handler.postdelayed (this, 2000);
}
};
2.Start Timer:
Handler.postdelayed (runnable,);//executes once every two secondsRunnable.
3.Stop timer:
Handler.removecallbacks (runnable);
Third, the use of Handler and timer and timertask combination method.
1.define timers, timer tasks andHandler Handle
Private Final Timer timer = new timer ();
Private TimerTask task;
Handler Handler = new Handler () {
@Override
public void Handlemessage (Message msg) {
TODO auto-generated Method Stub
//the things to do
Super.handlemessage (msg);
}

};
2.initializes the timer task.
task = new TimerTask () {
@Override
public void Run () {
TODO auto-generated Method Stub
Message message = new Message ();
Message.what = 1;
Handler.sendmessage (message);
}
};
3.Start Timer
Timer.schedule (Task, 2000, 2000);
briefly describe some of the things mentioned in the three steps above.
1.Timer Task (TimerTaskAs the name implies, that is, when the timer arrives at the specified time to do the work, here is toHandlersend a message, byHandlerclass for processing.
2. Java.util.Timer.schedule (timertask task, long delay):This approach is to say thatdalay/1000seconds after executiontask.executes only once.
Java.util.Timer.schedule (timertask task, long delay, long period): This method is to say thatdelay/1000seconds after executiontask,and then in.period/1000seconds to execute againTask, this is used for cyclic tasks, executed countless times, and of course, you can useTimer.cancel ();cancels the execution of the timer.

Android Timer implementation method [GO]