MainActivity.java

package com.survivingwithandroid.volley_tutorial;
/*
 * Copyright (C) 2014 Surviving with Android (http://www.survivingwithandroid.com)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import com.android.volley.AuthFailureError;
import com.android.volley.NetworkResponse;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class MainActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		String[] tuts = new String[] {"Post data", "Dowload Image"};
		
		ArrayAdapter<String> adpt = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, tuts);
		ListView lv = (ListView) findViewById(R.id.tutList);
		lv.setAdapter(adpt);
		
		
		lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {

			@Override
			public void onItemClick(AdapterView<?> adptView, View view, int position,
					long id) {
				
				Intent i = null;
				System.out.println("Position ["+position+"]");
				switch (position) {
				case 0:
					i = new Intent(MainActivity.this, PostActivity.class);
					break;
				case 1:
					i = new Intent(MainActivity.this, DownloadImgActivity.class);
					break;

				default:
					break;
				}
				
			
				startActivity(i);
				
			}
		});
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

}