Android

Content providers store and retrieve data and make it accessible to all applications. If you want to make your own data public, you have two options: You can create your own content provider (a ContentProvider subclass) or you can add the data to an existing provider. All Services must be declared in the manifest file. Content Provider Basics * All ... Read More »

* A Service is an application which has the ability to run in the background without displaying any user interface.* A Service is a class which derives from android.app.Service.* All Services must be declared in the manifest file.* Services run without a dedicated GUI, but, like Activities and Broadcast Receivers, they still execute in the main thread of the application’s ... Read More »

Intent is the negotiator between two activities or between two applications. It gives the ability to pass messages and data between the two entities. When writing applications for mobile, Intent is very handy, since it gives access to a lot of the OS services like opening the camera, a browser, displaying notifications and so on. Intent Resolution Intents can be ... Read More »

A view is a single user interface element. Its responsibilities include drawing on a canvas and handling user events. Some Views can contain other Views, these are called view groups. A View is a class which derives from android.view.View. There are already many existing views. The developer can use them or create his own customized view by extending any of ... Read More »

Activity is the presenter of a single screen in the application. It is the only one who has certain abilities, like displaying Views, menus, alerts and notifications. It also has the ability to open a new Activity, which means opening a new screen. Activity is a class which derives from android.app.Activity. An application needs to have at least one Activity. ... Read More »

System C library – a BSD-derived implementation of the standard C system library (libc), tuned for embedded Linux-based devices Media Libraries – based on PacketVideo’s OpenCORE; the libraries support playback and recording of many popular audio and video formats, as well as static image files, including MPEG4, H.264, MP3, AAC, AMR, JPG, and PNG LibWebCore – a modern web browser ... Read More »

The Dalvik VM takes the generated Java class files and combines them into one or more Dalvik Executable (.dex) files. It reuses duplicate information from multiple class files, effectively reducing the space requirement by half from a traditional .jar file. Google has fine-tuned the garbage collection in the Dalvik VM, but it has chosen to omit a just-in-time (JIT) compiler, ... Read More »

At the core of the Android Platform is Linux kernel version 2.6.29, responsible for device drivers, resource access, power management, and other OS duties. The supplied device drivers include Display, Camera, Keypad, WiFi, Flash Memory, Audio, and IPC (inter process communication). At the next level, on top of the kernel, are a number of C/C++ libraries such as OpenGL, WebKit, ... Read More »

This tutorial explains how to use Git Version Control with Android Studio. Git is a distributed version control system. Git is a best choice among all the version control software like CVS, SVN etc. Android studio comes with Git client. All we need to do is just enable and start using it. As a prerequisite, we need to have Git ... Read More »

This document will prepare an overview of the steps you will take to install and configure Android on your Ubuntu Linux system. You must have Java JDK on your system before installing Android SDK. Prepare your development environment and ensure it meets the system requirements. Install the Android Software Development Kit (SDK)s Download and Configure the Eclipse Integrated Development Environment ... Read More »