Android application data usage tracking

 

This article is excerpted from Sams Teach Yourself Android Application Development in 24 Hours (Amazon price at press time: $32.39 ), reprinted with permission of Sams Publishing. Coyright Lauren Darcey and Shane Conder, all rights reserved.

Every platform technology uses different terminology to describe its application components. The three most important classes on the Android platform are Context, Activity and Intent. While there are other, more advanced, components developers can implement, these three components form the building blocks for each and every Android application. In this article, we focus on understanding how Android applications are put together. We also take a look at some handy utility classes that can help developers debug applications.

An Android application is a collection of tasks, each of which is called an activity. Each activity within an application has a unique purpose and user interface. To understand this more fully, imagine a theoretical game application called Chippy's Revenge.

Android application data usage tracking

Android is an operating system based on the Linux kernel. Android is developed in the Android Open Source Project (AOSP). This project is lead by Google.

The Android operating system can be divided into the four areas as depicted in the following graphic. An Android application developer typically works with the two layers on top to create new Android applications.

Libraries and runtime - The libraries for many common framework functions, like graphic rendering, data storage, web browsing. Also contains the Android Runtime, as well as the core Java libraries for running Android applications.

This article is excerpted from Sams Teach Yourself Android Application Development in 24 Hours (Amazon price at press time: $32.39 ), reprinted with permission of Sams Publishing. Coyright Lauren Darcey and Shane Conder, all rights reserved.

Every platform technology uses different terminology to describe its application components. The three most important classes on the Android platform are Context, Activity and Intent. While there are other, more advanced, components developers can implement, these three components form the building blocks for each and every Android application. In this article, we focus on understanding how Android applications are put together. We also take a look at some handy utility classes that can help developers debug applications.

An Android application is a collection of tasks, each of which is called an activity. Each activity within an application has a unique purpose and user interface. To understand this more fully, imagine a theoretical game application called Chippy's Revenge.

Android is an open source software stack for a wide range of mobile devices and a corresponding open source project led by Google. This site and the Android Open Source Project (AOSP) repository offer the information and source code you need to create custom variants of the Android stack, port devices and accessories to the Android platform, and ensure your devices meet compatibility requirements.

The March 2017 Android Security Bulletin has been published along with links to associated fixes. In addition, new build numbers have been published for Nexus 6 running Android 7.0 and 7.1.1 and also Pixel, Pixel XL, Pixel C, Nexus 5X, Nexus 6P, Nexus 9, and Nexus Player running Android 7.1.1 to support the March Android security release.

The Vendor Test Suite (VTS) automates HAL and OS kernel testing. New documentation covers how to use VTS to test an Android native system implementation, set up a testing environment then test a patch using a VTS plan.