ループから AsyncTask を呼び出そうとしています。正常に動作していますが、問題はすべてのリクエストを実行するのにかなりの時間がかかることです。どうすればもっと速くできるか教えてください。
for (int i = 0; i < 6; i++) {
response = requestWeatherUpdate(location);
}
requestWeatherUpdate
private WeatherResponse requestWeatherUpdate(String location) {
url = ""+ location;
Log.d("URL for Weather Upadate", url);
WeatherUpdateAsyncTask weatherReq = new WeatherUpdateAsyncTask();
String weatherRequestResponse = "";
try {
weatherRequestResponse = weatherReq.execute(url).get();
if (weatherRequestResponse != "") {
parsedWeatherResponse = ParseWeatherResponseXML
.parseMyTripXML(weatherRequestResponse);
}
} catch (InterruptedException e) {
e.printStackTrace();
} catch (ExecutionException e) {
e.printStackTrace();
} catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (SAXException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return parsedWeatherResponse;
}
使用されたコールバック
public class WeatherUpdateAsyncTask extends AsyncTask<String, Void, String> {
Context context;
CallBack callBack;
public WeatherUpdateAsyncTask(CallBack callBack) {
this.callBack = callBack;
}
@Override
protected String doInBackground(String... arg0) {
String responseString = "";
HttpClient client = null;
try {
client = new DefaultHttpClient();
HttpGet get = new HttpGet(arg0[0]);
client.getParams().setParameter("http.socket.timeout", 6000);
client.getParams().setParameter("http.connection.timeout", 6000);
HttpResponse responseGet = client.execute(get);
HttpEntity resEntityGet = responseGet.getEntity();
if (resEntityGet != null) {
responseString = EntityUtils.toString(resEntityGet);
Log.i("GET RESPONSE", responseString.trim());
}
} catch (Exception e) {
Log.d("ANDRO_ASYNC_ERROR", "Error is " + e.toString());
}
Log.d("ANDRO_ASYNC_RESPONSE", responseString.trim());
client.getConnectionManager().shutdown();
return responseString.trim();
}
@Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
callBack.run(result);
}
}
requestWeatherUpdate
private WeatherResponse requestWeatherUpdate(String location) {
url = ""
+ location;
Log.d("URL for Weather Upadate", url);
WeatherUpdateAsyncTask weatherReq = new WeatherUpdateAsyncTask(new CallBack() {
@Override
public void run(Object result) {
try {
String AppResponse = (String) result;
response = ParseWeatherResponseXML
.parseMyTripXML(AppResponse);
} catch (Exception e) {
Log.e("TAG Exception Occured",
"Exception is " + e.getMessage());
}
}
});
weatherReq.execute(url);
return response;
}
ここから私は呼んでいます
for (int i = 0; i < 4; i++) {
inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
RelativeLayout layout = (RelativeLayout) inflater.inflate(
R.layout.sector_details, depart_arrivals_details, false);
depart_time = (TextView)layout.findViewById(R.id.depart_time);
depart_airport_city = (TextView)layout.findViewById(R.id.depart_airport_city);
temprature = (TextView)layout.findViewById(R.id.temprature);
humidity = (TextView)layout.findViewById(R.id.humidity);
flight_depart_image = (ImageView)layout.findViewById(R.id.flight_depart_image);
depart_time.setText("20:45");
depart_airport_city.setText("Mumbai");
/*
* This part will be updated when we will se the request and get the response
* then we have to set the temp and humidity for each city that we have recived
* */
temprature.setText("");//Here i have set the values from the response i recived from the AsynkTask
humidity.setText("");//Here i have set the values from the response i recived from the AsynkTask
flight_depart_image.setImageResource(R.drawable.f1);
depart_arrivals_details.addView(layout, i);
}