Android Error List : 10 Common Errors and How to fix them

Here’s an Android programming tutorial to address the 10 most common mistakes Android developers make.
Enroll now for : Professional Android App Developement Training with Offer

This exception is thrown when a call to startActivity fails because the Activity cannot be found. Usually, this means you forgot to declare the Activity in your Manifest.

2.Error converting byte to dex

If […]

Credo Systemz Ranking No 1 in Top 10 Android Training Institute in Chennai

Android Training
In today’s world the importance of mobile apps is increasing constantly, if we explore our app store or Google play we can see that there are apps for almost anything. With this we have the liberty to do anything sitting in our houses or anywhere and we can get the things done. We have […]

Analog and Digital clock in Android with Example

In Android, Analog and digital clocks are used to show time in android application.

The AnalogClock is a two-handed clock, one is hour indicator and the another one is  minute indicator. The DigitalClock is look like your normal digital which display hours, watch on hand, minutes and seconds in digital format.

Both AnalogClock and DigitalClock are UNABLE to modify the time, […]

Android fill_parent and match_parent with Example

A new Android developer may get confused about what’s the difference between fill_parent,match_parent and wrap_content.

In android every Tag in Xml file contains two important attributes


Did you wonder what’s the different?
Android fill_parent and match_parent
Lets see the Definition,

wrap_content – The component just want to display big enough to enclose its content only.

For Example : if […]

How to Make a phone calls programmatically in Android?

This article explains about creating an application using simple steps following below,

we are creating android application with calling functionality so when app user click on button then it will automatically calls on defined mobile phone number. So here is the complete step by step tutorial for Make a phone call directly from android app programmatically.

We […]

Top 25 Android Interview Questions and Answers

Android Interview Questions and Answers

1.What is Android ?

Android is a Software for mobile devices which includes an Operating System, middleware and some key applications. The application executes within its own process and its own instance of Dalvik Virtual Machine. Many Virtual Machines run efficiently by a DVM device. DVM executes Java languages byte code which […]

Android Alert Dialog Example Codes with output

Using Dialogs is simplest one in Android Programming .This tutorial we will be discussing about how to use Alert Dialog with one button(yes and No) in Android Application.

In this post, I have created a simple android alert dialog box which shows a title of dialog, a text message and a button.

Android AlertDialog

Alert dialog box is used […]

Best Coding Practices for Android Development

Developing Android applications isn’t easy. There are a variety of tools that help greatly like Eclipse and Android Studio, but the majority of your code still needs to be written manually. Building an application is one thing, but optimizing it is a totally different story. Lets see, some best practices that should be followed to […]

Android Fragment Life Cycle


Android Fragment is the part of activity, it is also known as sub-activity. There can be more than one fragment in an activity. Fragments represent multiple screen inside one activity. As we already discussed in our previous article about Activity Life Cycle.

Fragment lifecycle is an important aspect to take into account before using fragments. Every […]

15 Amazing Facts about Android

Today we’re here to look at 15 amazing facts about Android which most of the android users did not know.

Let’s begin!

Google did not create Android, they bought the company in 2005
Originally the Android OS wasn’t designed for the smartphone market; it was actually developed as a digital camera platform.
In November 2007, Google […]