├── .gitignore
├── res
    ├── drawable-hdpi
    │   └── icon.png
    ├── drawable-ldpi
    │   └── icon.png
    ├── drawable-mdpi
    │   └── icon.png
    ├── values
    │   └── strings.xml
    └── layout
    │   └── main.xml
├── README
├── default.properties
├── AndroidManifest.xml
└── src
    └── com
        └── devstream
            └── http
                ├── MainActivity.java
                └── HttpClient.java


/.gitignore:
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1 | bin/
2 | 


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/res/drawable-hdpi/icon.png:
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https://raw.githubusercontent.com/stefanklumpp/Simple-HTTP-Client/HEAD/res/drawable-hdpi/icon.png


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/res/drawable-ldpi/icon.png:
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https://raw.githubusercontent.com/stefanklumpp/Simple-HTTP-Client/HEAD/res/drawable-ldpi/icon.png


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/res/drawable-mdpi/icon.png:
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https://raw.githubusercontent.com/stefanklumpp/Simple-HTTP-Client/HEAD/res/drawable-mdpi/icon.png


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/README:
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1 | This source code is related to an Android tutorial, which is published here: http://devstream.stefanklumpp.com/2009/11/android-simple-httpclient-to.html
2 | 


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/res/values/strings.xml:
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1 | <?xml version="1.0" encoding="utf-8"?>
2 | <resources>
3 |     <string name="hello">Hello World, HttpClient!</string>
4 |     <string name="app_name">Simple HTTP Client</string>
5 | </resources>
6 | 


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/res/layout/main.xml:
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 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     android:orientation="vertical"
 4 |     android:layout_width="fill_parent"
 5 |     android:layout_height="fill_parent"
 6 |     >
 7 | <TextView  
 8 |     android:layout_width="fill_parent" 
 9 |     android:layout_height="wrap_content" 
10 |     android:text="@string/hello"
11 |     />
12 | </LinearLayout>
13 | 


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/default.properties:
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 1 | # This file is automatically generated by Android Tools.
 2 | # Do not modify this file -- YOUR CHANGES WILL BE ERASED!
 3 | # 
 4 | # This file must be checked in Version Control Systems.
 5 | # 
 6 | # To customize properties used by the Ant build system use,
 7 | # "build.properties", and override values to adapt the script to your
 8 | # project structure.
 9 | 
10 | # Indicates whether an apk should be generated for each density.
11 | split.density=false
12 | # Project target.
13 | target=android-4
14 | 


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/AndroidManifest.xml:
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 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 3 |       package="com.devstream.http"
 4 |       android:versionCode="1"
 5 |       android:versionName="1.0">
 6 |     <application android:icon="@drawable/icon" android:label="@string/app_name">
 7 |         <activity android:name=".MainActivity"
 8 |                   android:label="@string/app_name">
 9 |             <intent-filter>
10 |                 <action android:name="android.intent.action.MAIN" />
11 |                 <category android:name="android.intent.category.LAUNCHER" />
12 |             </intent-filter>
13 |         </activity>
14 | 
15 |     </application>
16 |     <uses-sdk android:minSdkVersion="4" />
17 |     <uses-permission android:name="android.permission.INTERNET" />
18 | 
19 | </manifest> 


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/src/com/devstream/http/MainActivity.java:
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 1 | /***
 2 | 	Copyright (c) 2009 
 3 | 	Author: Stefan Klumpp <stefan.klumpp@gmail.com>
 4 | 	Web: http://stefanklumpp.com
 5 | 		
 6 | 	Licensed under the Apache License, Version 2.0 (the "License"); you may
 7 | 	not use this file except in compliance with the License. You may obtain
 8 | 	a copy of the License at
 9 | 		http://www.apache.org/licenses/LICENSE-2.0
10 | 	Unless required by applicable law or agreed to in writing, software
11 | 	distributed under the License is distributed on an "AS IS" BASIS,
12 | 	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | 	See the License for the specific language governing permissions and
14 | 	limitations under the License.
15 | */
16 | 
17 | 
18 | package com.devstream.http;
19 | 
20 | import org.json.JSONException;
21 | import org.json.JSONObject;
22 | import android.app.Activity;
23 | import android.os.Bundle;
24 | import android.util.Log;
25 | 
26 | public class MainActivity extends Activity {
27 | 	private static final String TAG = "MainActivity";
28 | 	private static final String URL = "http://www.yourdomain.com:80";
29 | 
30 | 	@Override
31 | 	public void onCreate(Bundle savedInstanceState) {
32 | 		super.onCreate(savedInstanceState);
33 | 		setContentView(R.layout.main);
34 | 
35 | 		// JSON object to hold the information, which is sent to the server
36 | 		JSONObject jsonObjSend = new JSONObject();
37 | 
38 | 		try {
39 | 			// Add key/value pairs
40 | 			jsonObjSend.put("key_1", "value_1");
41 | 			jsonObjSend.put("key_2", "value_2");
42 | 
43 | 			// Add a nested JSONObject (e.g. for header information)
44 | 			JSONObject header = new JSONObject();
45 | 			header.put("deviceType","Android"); // Device type
46 | 			header.put("deviceVersion","2.0"); // Device OS version
47 | 			header.put("language", "es-es");	// Language of the Android client
48 | 			jsonObjSend.put("header", header);
49 | 			
50 | 			// Output the JSON object we're sending to Logcat:
51 | 			Log.i(TAG, jsonObjSend.toString(2));
52 | 
53 | 		} catch (JSONException e) {
54 | 			e.printStackTrace();
55 | 		}
56 | 
57 | 		// Send the HttpPostRequest and receive a JSONObject in return
58 | 		JSONObject jsonObjRecv = HttpClient.SendHttpPost(URL, jsonObjSend);
59 | 
60 | 		/*
61 | 		 *  From here on do whatever you want with your JSONObject, e.g.
62 | 		 *  1) Get the value for a key: jsonObjRecv.get("key");
63 | 		 *  2) Get a nested JSONObject: jsonObjRecv.getJSONObject("key")
64 | 		 *  3) Get a nested JSONArray: jsonObjRecv.getJSONArray("key") 
65 | 		 */
66 | 
67 | 
68 | 	}
69 | }


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/src/com/devstream/http/HttpClient.java:
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  1 | /***
  2 | 	Copyright (c) 2009 
  3 | 	Author: Stefan Klumpp <stefan.klumpp@gmail.com>
  4 | 	Web: http://stefanklumpp.com
  5 | 
  6 | 	Licensed under the Apache License, Version 2.0 (the "License"); you may
  7 | 	not use this file except in compliance with the License. You may obtain
  8 | 	a copy of the License at
  9 | 		http://www.apache.org/licenses/LICENSE-2.0
 10 | 	Unless required by applicable law or agreed to in writing, software
 11 | 	distributed under the License is distributed on an "AS IS" BASIS,
 12 | 	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13 | 	See the License for the specific language governing permissions and
 14 | 	limitations under the License.
 15 |  */
 16 | 
 17 | package com.devstream.http;
 18 | 
 19 | import java.io.BufferedReader;
 20 | import java.io.IOException;
 21 | import java.io.InputStream;
 22 | import java.io.InputStreamReader;
 23 | import java.util.zip.GZIPInputStream;
 24 | import org.apache.http.Header;
 25 | import org.apache.http.HttpEntity;
 26 | import org.apache.http.HttpResponse;
 27 | import org.apache.http.client.methods.HttpPost;
 28 | import org.apache.http.entity.StringEntity;
 29 | import org.apache.http.impl.client.DefaultHttpClient;
 30 | import org.json.JSONObject;
 31 | import android.util.Log;
 32 | 
 33 | public class HttpClient {
 34 | 	private static final String TAG = "HttpClient";
 35 | 
 36 | 	public static JSONObject SendHttpPost(String URL, JSONObject jsonObjSend) {
 37 | 
 38 | 		try {
 39 | 			DefaultHttpClient httpclient = new DefaultHttpClient();
 40 | 			HttpPost httpPostRequest = new HttpPost(URL);
 41 | 
 42 | 			StringEntity se;
 43 | 			se = new StringEntity(jsonObjSend.toString());
 44 | 
 45 | 			// Set HTTP parameters
 46 | 			httpPostRequest.setEntity(se);
 47 | 			httpPostRequest.setHeader("Accept", "application/json");
 48 | 			httpPostRequest.setHeader("Content-type", "application/json");
 49 | 			httpPostRequest.setHeader("Accept-Encoding", "gzip"); // only set this parameter if you would like to use gzip compression
 50 | 
 51 | 			long t = System.currentTimeMillis();
 52 | 			HttpResponse response = (HttpResponse) httpclient.execute(httpPostRequest);
 53 | 			Log.i(TAG, "HTTPResponse received in [" + (System.currentTimeMillis()-t) + "ms]");
 54 | 
 55 | 			// Get hold of the response entity (-> the data):
 56 | 			HttpEntity entity = response.getEntity();
 57 | 
 58 | 			if (entity != null) {
 59 | 				// Read the content stream
 60 | 				InputStream instream = entity.getContent();
 61 | 				Header contentEncoding = response.getFirstHeader("Content-Encoding");
 62 | 				if (contentEncoding != null && contentEncoding.getValue().equalsIgnoreCase("gzip")) {
 63 | 					instream = new GZIPInputStream(instream);
 64 | 				}
 65 | 
 66 | 				// convert content stream to a String
 67 | 				String resultString= convertStreamToString(instream);
 68 | 				instream.close();
 69 | 				resultString = resultString.substring(1,resultString.length()-1); // remove wrapping "[" and "]"
 70 | 
 71 | 				// Transform the String into a JSONObject
 72 | 				JSONObject jsonObjRecv = new JSONObject(resultString);
 73 | 				// Raw DEBUG output of our received JSON object:
 74 | 				Log.i(TAG,"<JSONObject>\n"+jsonObjRecv.toString()+"\n</JSONObject>");
 75 | 
 76 | 				return jsonObjRecv;
 77 | 			} 
 78 | 
 79 | 		}
 80 | 		catch (Exception e)
 81 | 		{
 82 | 			// More about HTTP exception handling in another tutorial.
 83 | 			// For now we just print the stack trace.
 84 | 			e.printStackTrace();
 85 | 		}
 86 | 		return null;
 87 | 	}
 88 | 
 89 | 
 90 | 	private static String convertStreamToString(InputStream is) {
 91 | 		/*
 92 | 		 * To convert the InputStream to String we use the BufferedReader.readLine()
 93 | 		 * method. We iterate until the BufferedReader return null which means
 94 | 		 * there's no more data to read. Each line will appended to a StringBuilder
 95 | 		 * and returned as String.
 96 | 		 * 
 97 | 		 * (c) public domain: http://senior.ceng.metu.edu.tr/2009/praeda/2009/01/11/a-simple-restful-client-at-android/
 98 | 		 */
 99 | 		BufferedReader reader = new BufferedReader(new InputStreamReader(is));
100 | 		StringBuilder sb = new StringBuilder();
101 | 
102 | 		String line = null;
103 | 		try {
104 | 			while ((line = reader.readLine()) != null) {
105 | 				sb.append(line + "\n");
106 | 			}
107 | 		} catch (IOException e) {
108 | 			e.printStackTrace();
109 | 		} finally {
110 | 			try {
111 | 				is.close();
112 | 			} catch (IOException e) {
113 | 				e.printStackTrace();
114 | 			}
115 | 		}
116 | 		return sb.toString();
117 | 	}
118 | 
119 | }
120 | 


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