非同步呼叫API取資料

呼叫API

        new Thread(new Runnable() {
            public void run() {
                try {
                    HttpClient mHttpClient = new DefaultHttpClient();
                    //使用post傳值
                    HttpPost httpPost = new HttpPost(url);
                    httpPost.setEntity(new UrlEncodedFormEntity(nvps, "UTF-8"));
                    HttpResponse mHttpResponse = mHttpClient.execute(httpPost);


                    //使用Get傳值
                    HttpGet httpGet = new HttpGet(url);
                    HttpResponse mHttpResponse = mHttpClient.execute(httpGet);



                    // HttpURLConnection.HTTP_OK為200，200代表串接溝通成功
                    if (mHttpResponse.getStatusLine().getStatusCode() == HttpURLConnection.HTTP_OK) {
                        //資料處理
                    }
                    // 送訊息跟handler講背景處理完
                    handler.sendEmptyMessage(0);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }).start();

API POST傳值


handler接收到消息後 更新UI

    private Handler handler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            // handler接收到消息後
        }
    };

Thread傳自訂Message到Handler