How To Stop Thread

boolean mFlag = true;

Thread thread = new Thread(new Runnable() {
    @Override
    public void run() {
        while(mFlag) {
            ...
            //Working
            ...
        }
    }
});
thread.start();

Than set mFlag to false somewhere.
如果在Android中，Thread沒辦法停掉，則會造成一個Memory Leak