package Utils;
import android.os.AsyncTask;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;

public class Mytask extends AsyncTask<String,Void,String> {

    private 
 
INxBean iNxBean;

    //傳遞介面物件
public Mytask(INxBean iNxBean) {
        this.iNxBean = iNxBean;
    }

    @Override
protected String doInBackground(String... strings) {
        try {
            URL url=new URL(strings[0]);
            HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
            urlConnection.setConnectTimeout(5000
 
);
            urlConnection.setReadTimeout(5000);
            urlConnection.setRequestMethod("GET");
            if (urlConnection.getResponseCode()==200){
                InputStream inputStream = urlConnection.getInputStream();
                ByteArrayOutputStream byteArrayOutputStream=new ByteArrayOutputStream();
                byte
 
[] arr = new byte[1024];
                int len=0;
                while ((len=inputStream.read(arr))!=-1){
                    byteArrayOutputStream.write(arr,0,len);
                }
                return byteArrayOutputStream.toString();
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    @Override
protected void onPostExecute(String s) {
        super.onPostExecute(s);

        iNxBean.getJson(s);

    }

    //定義介面
public interface INxBean{
        void getJson(String jsonstr);
    }
}





//回到Activity的頁面 
                    回撥介面

Mytask mytask = new Mytask(new Mytask.INxBean() {
    @Override
public void getJson(String jsonstr) {

        //解析字串
Gson gson = new Gson();
        User_Bean user_bean = gson.fromJson(jsonstr, User_Bean.class);
        if (opertype==1){
            data.clear();
        }
        data.addAll(user_bean.getData());
        setAdapter1();
        plv.onRefreshComplete();
    }
});
mytask.execute(url);