方便子執行緒與UI執行緒切換

import android.os.Handler;

import android.os.Looper;


public class ThreadUtils {


public static void runInThread(Runnable r) {
new Thread(r).start();
}

private static Handler handler=new Handler(Looper.getMainLooper());//使用主執行緒Looper
public static void runUIThread(Runnable r) {
handler.post(r);//new Message  sendMessage-->handleMessage(); r.run();
}
}