Android Installation

Android Installation

1. Options

You have different options to install the Android development tools. The simplest way is to download a full packaged pre-configured Eclipse.

For other options please see Android installation

2. Standalone ADT installation

Google provides a pre-packaged and configured Eclipse based

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Using Resources

1. Reference to resources in code

The Resources class allows to access individual resources. An instance of Resources can get access via the getResources() method of the Context class.

The Resources class is also used by other Android classes, for example the following code shows

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Resources

1. Resources

Android supports that resources, like images and certain XML configuration files, can be keep separate from the source code.

These resources must be defined in the res directory in a special folder dependent on their purpose. You can also append additional qualifiers to the folder name to indicate

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Android Application Architecture

1. AndroidManifest.xml

The components and settings of an Android application are described in the AndroidManifest.xml file. For example all Activities and Services of the application must be declared in

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Android Development Tools

1. Android SDK

The Android Software Development Kit (SDK) contains the necessary tools to create, compile and package Android application. Most of these tools are command line based.

The Android SDK also provides an Android device emulator, so that Android applications can be tested without a real Android phone. You can create Android virtual devices (AVD) via

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Other Android components

Android has several more components which can be used in your Android application.

Intents

Intents are asynchronous messages which allow the application to request functionality from other components of the Android system, e.g. from Services or Activities. An application can call a component directly (explicit Intent) or ask the Android system to evaluate registered components based on the Intent data (implicit Intents ). For example the application could implement sharing of data via an

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1. What is Android?

Android Operation System:

Android is an operating system based on Linux with a Java programming interface.

The Android Software Development Kit (Android SDK) provides all necessary tools to develop Android applications. This includes a compiler, debugger and a device emulator, as well as its own virtual