ANDROID Online Training

Android is an open source and Linux-based operating system for mobile devices such as smartphones and tablet computers. Android was developed by the Open Handset Alliance, led by Google, and other companies. This tutorial will teach you basic Android programming and will also take you through some advance concepts related to Android application development. Learn more concepts from Android training by Learn IT Training. A Fragment is a piece of an activity which enable more modular activity design. It will not be wrong if we say, a fragment is a kind of sub-activity. Following are important points about fragment: A fragment has its own layout and its own behaviour with its own life cycle callbacks. You can add or remove fragments in an activity while the activity is running. You can combine multiple fragments in a single activity to build a multi-pane UI.   A fragment can be used in multiple activities. Fragment life cycle is closely related to the life cycle of i...

Content Providers and Content Resolvers are a common source of confusion for beginning Android developers. Further, online tutorials and sample code are not sufficient in describing how the two classes work together to provide access to the Android data model. See Android training for concepts related to android and its applications. Content Resolver: The Content Resolver is the single, global instance in your application that provides access to your (and other applications’) content providers. The Content Resolver behaves exactly as its name implies: it accepts requests from clients, and resolves these requests by directing them to the content provider with a distinct authority. To do this, the Content Resolver stores a mapping from authorities to Content Providers. This design is important, as it allows a simple and secure means of accessing other applications’ Content Providers. Content provider: Whereas the Content Resolver provides an abstraction from the application...

Benefits of Android application development It is never enough to know enough, this is exceptionally true when we are speaking about Android, the open source mobile operating system. Android application development offers massive possibilities to developers interested in creating out of the box applications and games for the mobile world. Not only can the Android Application developers develop various applications and games using the pulpit but also sell, distribute and market it with no trouble. This article gives you an overview of android and advantages of android app development and makes you ready to develop apps using Android training by Learn IT Training by industry experts. A good quality about it is that it keeps updating itself every now and then, giving Android Application development team chance to expand their creativity to develop applications which otherwise would not have been possible. One should not be astonished to see dissimilar level applications being cre...

The use of smart phones and tablet PCs has significantly increased during recent years. In every device like a smart phone, there are multiple applications. These applications serve different purposes such as sending text messages and pictures, determining one’s current location, figuring out routes for a particular destination, social networking, and gaming. Android happens to be a widely used platform for these services. Learn industry best practices with Android training by Learn IT Training. Ease of customization You can easily customize Android applications without getting restricted by the traditional limitations. An organization can adjust an Android operating system on the basis of its in-house operations. Android application development is the only means for adding brand to a business. With this approach, developers will get multiple options through which they can implement creative ideas and make their application even more interactive. Applications can have nume...

Android is an open source and Linux-based operating system for mobile devices such as smartphones and tablet computers. Android was developed by the Open Handset Alliance, led by Google, and other companies. This tutorial will teach you basic Android programming and will also take you through some advance concepts related to Android application development. Learn more concepts from Android training by Learn IT Training. Broadcast Receivers simply respond to broadcast messages from other applications or from the system itself. These messages are sometime called events or intents. For example, applications can also initiate broadcasts to let other applications know that some data has been downloaded to the device and is available for them to use, so this is broadcast receiver who will intercept this communication and will initiate appropriate action. Android technology is an aggregate of technologies like JAVA, C, C++ and XML, and inherits the characteristics of all these techn...

What are services? A service is a component which runs in the background without direct interaction with the user. As the service has no user interface, it is not bound to the lifecycle of an activity. Services are used for repetitive and potentially long running operations, i.e., Internet downloads, checking for new data, data processing, updating content providers and the like. Services run with a higher priority than inactive or invisible activities and therefore it is less likely that the Android system terminates them. Services can also be configured to be restarted if they get terminated by the Android system once sufficient system resources are available again. It is possible to assign services the same priority as foreground activities. In this case it is required to have a visible notification active for the related service. It is frequently used for services which play videos or music. Android's Open Handset Alliance enables high standards to efficiently fu...

Android - Activities. An activity represents a single screen with a user interface just like window or frame of Java. Android activity is the subclass of ContextThemeWrapper class. The Activity class defines the following call backs i.e. events. Learn Android from certified experts by Learn IT Training see Android training for details. The concept of Activities The activity class serves as the entry point for an app’s interaction with the user, providing the window in which the app draws its UI. This window typically fills the screen, but may be smaller than the screen and float on top of other windows. You implement an activity as a subclass of the Activity class. Generally, one activity implements one screen in an app. For instance, one of an app’s activities may implement the Preferences screen, while another activity implements the Compose Email screen. Most apps contain multiple screens, which means they comprise multiple activities. Typically, one activity in an app...

Android Applications Android applications are usually developed in the Java language (Learn programming from JAVA training from Learn IT Training) using the Android Software Development Kit. Learn Android by experts and create an app of your own from Android training . Once developed, Android applications can be packaged easily and sold out either through a store such as Google Play, SlideME, Opera Mobile Store, Mobango, F-droid and the Amazon Appstore. Android powers hundreds of millions of mobile devices in more than 190 countries around the world. It's the largest installed base of any mobile platform and growing fast. Every day more than 1 million new Android devices are activated worldwide. Application Components Application components are the essential building blocks of an Android application. These components are loosely coupled by the application manifest file AndroidManifest.xml that describes each component of the application and how they interact. ...

Android tutorial or android development tutorial covers basic and advanced concepts of android technology. Our android tutorial is developed for beginners and professionals. Android is a complete set of software for mobile devices such as tablet computers, notebooks, smartphones, electronic book readers, set-top boxes etc. get trained by experts from Android training with live project and implementation. It contains a Linux-based Operating System, middleware and key mobile applications. It can be thought of as a mobile operating system. But it is not limited to mobile only. It is currently used in various devices such as mobiles, tablets, televisions etc. Android Architecture Android operating system is a stack of software components which is roughly divided into five sections and four main layers as shown below in the architecture diagram. Linux kernel At the bottom of the layers is Linux - Linux 3.6 with approximately 115 patches. This pro...