Learn Android for Free,issues for developers, mobengineers website provide complete solutions for developers issues posts.It also provides online training for android development

Tuesday, March 19, 2013

What is Serialization


It is an ability to save the state of the entire object at a time into the file is known as Serialization.

    Whenever we use ordinary file writing  like "n" number of values of an object, we need to perform, "n " number of operations which leads to poor performance.
   To overcome this issue, we need to transfer all data at a time, which improves the performance. We must implement serialization to achieve this.

Friday, March 15, 2013

Apps for windows phone

Temple Run

          "Temple run" an   running game for protecting himself. Swipe to jump, collect coins while running, unlock new characters and buy power etc many features there and much fun!.

Click here to download the app

Space Tube

Space Tube is an Amazing 3D Race game in space. Take journey to the space. Lets try the game.

Click here to Download App

Thursday, March 14, 2013

Top Android Games


Age Of Empire

Take control of empire and battle over other rival kingdoms.Build your own kingdom and rule. Nice game and much more fun!.........................


Click here to download the game 


Subway Surfers

Dodge the coming trains, collect coins, escape from enemies....wonderful world.   

Click here to download the game for free



After nuclear war, there is no humanity, Except me... . Rest of the world gone into Zombies. Shoot the infected people  infinitely, keep going. Kill the evils.

 Click here to download  

Railway Game 

Control the trains using switches. Take care of arriving the trains at intended destinations. If any crash, call the repair gang. 

Click here to download 

Speed Parking 3D

            Speed parking is a 3D parking experience while playing this game. you can park the vehicle in the specified area. The area contains some obstacles. So, you need to park the car without hitting the obstacle.

Click here to download 



Racing Thunder2

          Racing Thunder is a racing application, follows mountains, beaches,Great walls etc.

Click here to download 

Tank Recon 3D

Tank Recon is a 3d game.In this, you can shoot at guns, planes, tanks. We can fire on enemy. 

Easy navigation. Faster control. Touch to shoot and many more... Much fun!

Click here to download game


Temple Run

           Temple run is an unlimited running game.In this game, Swipe to jump and collect coins while running, unlock new characters and buy power.

Click here to download the game

Tuesday, March 12, 2013

Reading SMS from Inbox in Android

package com.srinivas;

import android.net.Uri;
import android.os.Bundle;
import android.widget.TextView;
import android.app.Activity;
import android.database.Cursor;

public class MainActivity extends Activity {

    protected void onCreate(Bundle savedInstanceState) {

// get sms from inbox
        Uri uriSMSURI = Uri.parse("content://sms/inbox");
        Cursor cur = getContentResolver().query(uriSMSURI, null, null, null,null);
        String sms = "";
        while (cur.moveToNext()) {
            sms += "" + cur.getString(3) + " : " + cur.getString(2);        
             TextView tv=(TextView)findViewById(R.id.textView1);

Manifest permission

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

Download source code here 

Monday, March 11, 2013

Best Android Applications


Siine Shortcut Keyboard

              Got bore with the lazy keypad. Here is the best fastest typing keypad with lot many shortcut keys.Many emoticons, calender,, personalized emoticons etc lot many features. Download the app for free.... download it now.....

Click here to download keypad

Magisto   - Awesome application

Magisto is a editor tool for adding movie effects like background music , graphic effects to our vidoes.This is fun .

 Click here to download


 Dhingana is a music application. Listen unlimited free songs from different languages (telugu, tamil, kannada, hindi,punjabi, pop remexies,bhangra,Bengali, Braj,Gujarati, Malayalam, Sanskrit, devotional and many more songs.

Download application here

Life Of Pie

One boy, one tiger , one boat...  an adventure drama based on Yan Martels 2001 novel. 16 years old boy named Pi surviver after tragic sinking of ship. Read the complete story.

Click here to download the Book


Mobile Recharge and Bill Pay

  It is a great application for recharge. With this application, we can pay Postpaid bills, Datacard recharge,DTH recharge,Electricity bills,Lanline bills Gas bill etc. It is simple and reliable.


Hike is the best application for sending sms to any mobile.

 some great features of Hike
Free chat
free message to  anywhere in India
Group chat
Send Photos, Videos
Fast delivery of messages
Location Sharing

Download the application here 



Saturday, March 2, 2013

How to test Android Application

Android testing suits are based on JUnit. Use JUnit to test a class but don't call Android API.If your new to android, use general purpose test cases such as AndroidTestCase.

Eclipse IDE:
Android Test cases can be run on Eclipse IDE or any other IDE.

Activity Testing: Activity testing base class is InstrumentationTestCase, which provides instrumentation to  test case.

Service Testing: Android provides service framework for testing service objects. We have to test the life cycle of service, such as onCreate() or onStartCommand().

Content Provider Testing: 
Android uses content providers to fetch the data and to store the data.The base test case class for content providers is  ProviderTestCase2.

UI testing: UI testing is more important in case of mobile application. Its also important to test application user interface.

How to test UI:

1. Install application on the test device and analyse UI components.

2. Create Automated tests to simulate UI, Compile test cases into a JAR file by installing it in test device.

3. Run the test and correct the bugs.

Why Manual testing:

In Mobile devices, varies the hardware from device model to model or manufacturer to manufacturer. So it is important to test the application in the hardware device even though simulating in the emulator. We cannot check the camera, Bluetooth, gps functionality in the emulator. So, use android test device for testing the application.

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