MainActivity.java

package com.mindstorm.famousquotesandroid;

import java.io.IOException;
import java.util.List;

import com.google.api.client.extensions.android.http.AndroidHttp;
import com.google.api.client.json.gson.GsonFactory;
import com.mindstorm.famousquotes.entity.quoteendpoint.Quoteendpoint;
import com.mindstorm.famousquotes.entity.quoteendpoint.model.CollectionResponseQuote;
import com.mindstorm.famousquotes.entity.quoteendpoint.model.Quote;

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity {
        
        @Override
        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.activity_main);
                
                //Event Listener for About App button
                Button btnAboutApp = (Button)findViewById(R.id.btnAboutApp);
                btnAboutApp.setOnClickListener(new OnClickListener() {
                        
                        @Override
                        public void onClick(View v) {
                                AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);                
                                builder.setTitle("About Application");
                                builder.setMessage("Famous Quotes\r\nVersion 1.0");
                                builder.setPositiveButton("OK",new DialogInterface.OnClickListener() {
                                        
                                        public void onClick(DialogInterface dialog, int which) {
                                                dialog.dismiss();
                                        }
                                });
                                builder.show();
                        }
                });
                
                
                //Event Listener for List Quotes button
                Button btnListQuotes = (Button)findViewById(R.id.btnListQuotes);
                btnListQuotes.setOnClickListener(new OnClickListener() {
                        
                        @Override
                        public void onClick(View v) {
                                Intent myIntent = new Intent(MainActivity.this, QuotesListActivity.class);
                                startActivity(myIntent);
                        }
                });
                
                //Event Listener for Add Quote button
                Button btnAddQuote = (Button)findViewById(R.id.btnAddQuote);
                btnAddQuote.setOnClickListener(new OnClickListener() {
                        
                        @Override
                        public void onClick(View v) {
                                Intent myIntent = new Intent(MainActivity.this, AddQuoteActivity.class);
                                startActivity(myIntent);
                        }
                });
                
        }

        @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;
        }

}