Category Archives: Tutorials

Android File System Structure/Architecture/Layout Details

 Android File System Structure/Architecture/Layout Details

Most of the Android user are using their Android phone just for calls, SMS, browsing and basic apps, But form the development prospective, we should know about  Android internal structure. Android uses several partitions (like boot, system, recovery,data etc) to organize files and folders on the device just like Windows OS. Each of these partitions has it’s own functionality, But most of us don’t know  the significance of each partition and its contents. In this article, we will take you on a tour of Android partitions. So lets start the android file system tutorial.

Useful adb Commands for Android Development

Useful adb Commands for Android Development

Here we will discuss some useful adb Commands for Android Development. Before going to discuss details about some useful  adb commands for android development, let’s know what is adb exactly in android. How it works? Most of the interviews, you might face this question.

Android Debug Bridge (adb) is a command line tool, which communicates with a connected emulator or android device. It is a client-server program and divided into three different components:

Some Common Android Development Errors and Solutions

Some Common Android Development Errors and Solutions

You might face some issues/problems during your android development. Here we will discuss Some Common Android Development Errors and Solutions. Sometimes your output does not come as you expected. You might face some build errors, some setup errors, configuration errors, Eclipse IDE errors, Android SDK errors, Security errors, Permission errors etc. These kinds of issues are very irritating. In my prior experience, I have faced a lot of issues & solve these as well. So I would like to share some common android issues/errors with solutions with you.

Sample Code for ListView with SQLite Database Connection in Android

Here We are going to discuss 4 important features in android from development prospective with sample code and example.1. How to use ListView in android with example.

2. How to connect to SQLite database in android with example.
3. How to fetch contacts in android.
4. Finally practical use of how to fetch contacts from Contacts database(SQLite Database)and show in Listview in android.

Android Examples With Source Code

Android Examples with Source Code and Description

Here you can download verities of Android Examples with Source Code. To help you understand some fundamental Android APIs and coding practices, a variety of examples and source code are available along with the Android SDK Manager. Each version of the Android platform available with the SDK Manager offers its own set of sample codes for verities of android applications. Also You can download examples with source code for Android Applications from here. Below is the screen shot from the API Demos application. Once you will click on each category, we will find and run related android apps listed below.

You can find the source code for all samples at this location in your local PC, where you downloaded/extracted “Android SDK”:

“Hello World” Android Application Source Code Description

Hello World Source Code Description

At last, Now it is time to start coding!  You need to know details about source code description for your “Hello World” android application. We will learn about auto eclipse generated code for your application. Go to the “src” folder. In this folder, you will find the package folder, open the file. You will see the default code for an Android Activity: