REST+JSON Web service Example in Android.

Download this project-->REST+JSONWebserviceExample.zip
output:

activity_main.xml:

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:id="@+id/ScrollView1"

    android:layout_width="match_parent"

    android:layout_height="match_parent" >

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content" >

        <TextView

            android:id="@+id/textView1"

            android:layout_width="match_parent"

            android:layout_height="match_parent"

            android:textAppearance="?android:attr/textAppearanceLarge" />

    </LinearLayout>

</ScrollView>

MainActivity.java:

package com.ram.restjsonwebserviceexample;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import org.apache.http.HttpResponse;

import org.apache.http.client.ClientProtocolException;

import org.apache.http.client.HttpClient;

import org.apache.http.client.methods.HttpPost;

import org.apache.http.impl.client.DefaultHttpClient;

import org.json.JSONArray;

import org.json.JSONException;

import android.annotation.SuppressLint;

import android.app.Activity;

import android.os.Bundle;

import android.os.StrictMode;

import android.widget.TextView;

@SuppressLint("NewApi")

public class MainActivity extends Activity {

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()

.permitAll().build();

StrictMode.setThreadPolicy(policy);

setContentView(R.layout.activity_main);

HttpClient httpclient = new DefaultHttpClient();

HttpPost httppost = new HttpPost(

"http://www.cheesejedi.com/rest_services/get_big_cheese.php?puzzle=");

TextView textView = (TextView) findViewById(R.id.textView1);

try {

HttpResponse response = httpclient.execute(httppost);

String jsonResult = inputStreamToString(

response.getEntity().getContent()).toString();

JSONArray jsonArray = new JSONArray(jsonResult);

for (int i = 0; i < jsonArray.length(); i++) {

textView.append("id: "

+ jsonArray.getJSONObject(i).getString("id").toString()

+ "\n");

textView.append("level: "

+ jsonArray.getJSONObject(i).getString("level")

.toString() + "\n");

textView.append("time_in_secs: "

+ jsonArray.getJSONObject(i).getString("time_in_secs")

.toString() + "\n");

textView.append("par: "

+ jsonArray.getJSONObject(i).getString("par")

.toString() + "\n");

textView.append("initials: "

+ jsonArray.getJSONObject(i).getString("initials")

.toString() + "\n");

textView.append("quote: "

+ jsonArray.getJSONObject(i).getString("quote")

.toString() + "\n");

textView.append("time_stamp: "

+ jsonArray.getJSONObject(i).getString("time_stamp")

.toString() + "\n");

textView.append("-------------------------------------------------"

+ "\n");

}

// textView.setText(jsonResult);

} catch (ClientProtocolException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

} catch (JSONException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

private StringBuilder inputStreamToString(InputStream is) {

String rLine = "";

StringBuilder answer = new StringBuilder();

InputStreamReader isr = new InputStreamReader(is);

BufferedReader rd = new BufferedReader(isr);

try {

while ((rLine = rd.readLine()) != null) {

answer.append(rLine);

}

}

catch (IOException e) {

e.printStackTrace();

}

return answer;

}

}

AndroidManifest.xml:

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.ram.restjsonwebserviceexample"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="19" />

    <uses-permission android:name="android.permission.INTERNET" />

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name="com.ram.restjsonwebserviceexample.MainActivity"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

</manifest>