在Fragment里面，上下文不能使MainActivity.this ?只能是getActivity() ;
ToastUtils.show(getActivity(),"請求成功");
Handler機(jī)制的簡單代碼
private Handler handler = new Handler(){
????????@Override
????????public void handleMessage(Message msg) {
????????????????if (msg.what == 1){
????????????????????????getWeatherData();
????????????????}
????????}
};
調(diào)用
handler.sendEmptyMessageDelayed(1,5000);
5s執(zhí)行一次料皇。
