Handler相关------方法，更新UI，异步，解决数据加载量等

Handler的更新UI
new Handler().postDelayed(Runable,delaytime);


延迟intent跳转,一般用于闪屏，loading界面，或者延迟一段时间发送消息

Runnable r = new Runnable() {

@Override

public void run() {

// TODO Auto-generated method stub

startGoPage();

}

};

new Handler().postDelayed(r, 2000);

------------------------

startGoPage()｛

Inent intent = new Inent(xx.this,xxx.class);

startActivity(intent);

finish();
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