Android Open Source - spring-for-android-starter-book Main Activity

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License

The source code is released under:

Apache License

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Java Source Code

package net.dahanne.spring.android.ch3.gzip;
/*from  ww  w . j  a v a  2  s  .com*/

import org.springframework.http.ContentCodingType;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.ResponseEntity;
import org.springframework.http.converter.json.MappingJacksonHttpMessageConverter;
import org.springframework.web.client.RestTemplate;

import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.widget.TextView;

public class MainActivity extends Activity {

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    final TextView resultTextView = (TextView) findViewById(R.id.result_text);

    AsyncTask<String, Void, IfConfigMeJson> simpleGetTask =  new AsyncTask<String, Void, IfConfigMeJson>() {
      @Override
      protected IfConfigMeJson doInBackground(String... params) {
        // Add the gzip Accept-Encoding header
        HttpHeaders requestHeaders = new HttpHeaders();
        requestHeaders.setAcceptEncoding(ContentCodingType.IDENTITY);
          //requestHeaders.setAcceptEncoding(ContentCodingType.GZIP);
        HttpEntity<?> requestEntity = new HttpEntity<Object>(requestHeaders);
        RestTemplate restTemplate = new RestTemplate();
        MappingJacksonHttpMessageConverter mappingJacksonHttpMessageConverter = new MappingJacksonHttpMessageConverter();
        restTemplate.getMessageConverters().add(mappingJacksonHttpMessageConverter);
        ResponseEntity<IfConfigMeJson> response = restTemplate.exchange(params[0], HttpMethod.GET, requestEntity, IfConfigMeJson.class);
        return response.getBody();
      }
      
      @Override
      protected void onPostExecute(IfConfigMeJson result) {
        String resultAsString =  new StringBuilder().append("We said we supported the following encoding for the response : ")
                                                .append(result.getEncoding())
                                                .append("\n Here is your IP : ")
                                                .append(result.getIpAddr()).toString();
        resultTextView.setText(resultAsString );
      }
      
    };
    
    String url = "http://ifconfig.me/all.json";
    // triggers the task; it will update the resultTextView once it is done
    simpleGetTask.execute(url);
  }
}

Java Source Code List