Get all the models for a given camera brand, using Flickr API.

Flickr Service provide API of flickr.cameras.getBrandModels, returns all the models for a given camera brand. It's a exercise to show how to access get models of brand "nikon".

package com.example.androidflickrcameras;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;

import org.apache.http.HttpEntity;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

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

public class MainActivity extends Activity {
 
 /*
  * Example of Flickr API, flickr.cameras.getBrandModels
  * http://api.flickr.com/services/rest/?method=flickr.cameras.getBrandModels&api_key=65d0c67c148bb772766f317c5118f380&brand=Nikon&format=json&nojsoncallback=1
  */
 
 final static String Flickr_KEY = "insert your Flickr API key here";
 final static String subUrl_Flickr = "http://api.flickr.com/services/rest/?";
 final static String subUrl_method_getBrandModels = "flickr.cameras.getBrandModels";
 final static String brand = "nikon";
 final static String url_FlickrApi_getBrandModels
   = subUrl_Flickr
   + "method=" + subUrl_method_getBrandModels
   + "&api_key=" + Flickr_KEY
   + "&brand=" + brand
   + "&format=json&nojsoncallback=1";

 TextView tvResult;
 
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  tvResult = (TextView)findViewById(R.id.result);

  new MyTask().execute();
 }

 private String QueryFlickr(String q){
  String qResult = null;
  HttpClient httpClient = new DefaultHttpClient();
  HttpGet httpGet = new HttpGet(q);
  
  try {
   HttpEntity httpEntity = httpClient.execute(httpGet).getEntity();
   if (httpEntity != null){
    InputStream inputStream = httpEntity.getContent();
    Reader in = new InputStreamReader(inputStream);
    BufferedReader bufferedreader = new BufferedReader(in);
    StringBuilder stringBuilder = new StringBuilder();

    String stringReadLine = null;
    
    while ((stringReadLine = bufferedreader.readLine()) != null) {
     stringBuilder.append(stringReadLine + "\n"); 
    }
    
    qResult = stringBuilder.toString();
   }
   
   
  } catch (ClientProtocolException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  return qResult;
 }
 
 private String ParseJSON_getBrandModels(String json){
  String jResult = null;
  
  try {
   JSONObject JsonObject = new JSONObject(json);
   JSONObject Json_cameras = JsonObject.getJSONObject("cameras");
   
   JSONArray JsonArray_camera = Json_cameras.getJSONArray("camera");
  
   jResult = "Brand: " + Json_cameras.getString("brand") + "\n\n";
   for(int i = 0; i < JsonArray_camera.length(); i++){
    JSONObject jsonObjectCamera = JsonArray_camera.getJSONObject(i);
    
    String camera_id = jsonObjectCamera.getString("id");
    
    JSONObject jsonObjectCamera_name = jsonObjectCamera.getJSONObject("name");
    String camera_name_content = jsonObjectCamera_name.getString("_content");
    
    JSONObject jsonObjectCamera_details = jsonObjectCamera.getJSONObject("details");
    String details_megapixels 
     = jsonObjectCamera_details
      .getJSONObject("megapixels").getString("_content");
    String details_lcd_screen_size 
     = jsonObjectCamera_details
      .getJSONObject("lcd_screen_size").getString("_content");
    String details_memory_type 
     = jsonObjectCamera_details
      .getJSONObject("memory_type").getString("_content");

    jResult += "id: " + camera_id + "\n"
      + "name: " + camera_name_content + "\n"
      + "megapixels: " + details_megapixels + "\n"
      + "lcd_screen_size: " + details_lcd_screen_size + "\n"
      + "memory_type: " + details_memory_type + "\n\n";
   }
   
  } catch (JSONException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  return jResult;
 }
 
 private class MyTask extends AsyncTask<Void, Void, Void>{
  
  String flickrReturn;
  String parsedFlickrReturn;

  @Override
  protected Void doInBackground(Void... arg0) {
   flickrReturn = QueryFlickr(url_FlickrApi_getBrandModels);
   parsedFlickrReturn = ParseJSON_getBrandModels(flickrReturn);
   return null;
  }

  @Override
  protected void onPostExecute(Void result) {
   if(parsedFlickrReturn == null){
    tvResult.setText("Fail!");
   }else{
    tvResult.setText(parsedFlickrReturn);
   }
  }

 }

}

Layout refer to the exercise "Get all brands of cameras that Flickr knows about, using Flickr API".

Permission of "android.permission.INTERNET" is needed.


Download the files.