android 載入網路資料（1）

標籤：

使用非同步任務載入網狀圖片：

class MyTask extends AsyncTask<String, Void, Bitmap>{        @Override        protected Bitmap doInBackground(String... params) {             HttpClient client = new DefaultHttpClient();            HttpGet post = new HttpGet(params[0]);//注意請求方式，可能爆出請求方式不被允許            try {                 HttpResponse response = client.execute(post);                int stateCode = response.getStatusLine().getStatusCode();                 if(stateCode == 200){                    byte[] result = EntityUtils.toByteArray(response.getEntity());                    Bitmap bm = BitmapFactory.decodeByteArray(result, 0, result.length);                    return bm;                }            } catch (Exception e) {                e.printStackTrace();            }return null;        }        @Override        protected void onPostExecute(Bitmap result) {            super.onPostExecute(result);             if(result != null){                 iv.setImageBitmap(result);            }        }            }

載入URL對象來擷取網路資料

    @Override        protected Bitmap doInBackground(String... params) {            try {                //建立URL對象                 URL url = new URL(params[0]);                 //擷取串連                 URLConnection conn = url.openConnection();                 //設定連線逾時, 一般為5s                 conn.setConnectTimeout(5000);                 //擷取輸入資料流                 InputStream in  = conn.getInputStream();                 Bitmap bm = BitmapFactory.decodeStream(in);                 return bm;            } catch (Exception e) {                e.printStackTrace();            }　　

android 載入網路資料（1）