Let’s know more about Android App
IT Business Analyst
An Android app is a software application running on the Android platform. Because the Android platform is built for mobile devices, a typical Android app is designed for a smartphone or a tablet PC running on the Android OS.
Android apps are written in the Kotlin, C++ languages and Java, React Native programming language and use Java core libraries. They are first compiled to Dalvik executables to run on the Dalvik virtual machine, which is a virtual machine specially designed for mobile devices.
Developers may download the Android software development kit (SDK) from the Android website. The SDK includes tools, sample code and relevant documents for creating Android apps.
Android is an open source software stack that includes the operating system, middleware, and built-in mobile applications based on a modified version of Linux that device vendors can further customize to differentiate their products. Android applications primarily store data in two locations, internal and external storage.
Function of Android App
Each Android app lives in its own security sandbox, protected by the following Android security features:
- The Android operating system is a multi-user Linux system in which each app is a different user.
- By default, the system assigns each app a unique Linux user ID (the ID is used only by the system and is unknown to the app). The system sets permissions for all the files in an app so that only the user ID assigned to that app can access them.
- Each process has its own virtual machine (VM), so an app's code runs in isolation from other apps.
- By default, every app runs in its own Linux process. The Android system starts the process when any of the app's components need to be executed, and then shuts down the process when it's no longer needed or when the system must recover memory for other apps.
There are four different types of app components:
- Broadcast receivers
- Content providers
Apps provide multiple entry points
Android apps are built as a combination of components that can be invoked individually. For example, an activity is a type of app component that provides a user interface (UI).
The "main" activity starts when the user taps your app's icon. You can also direct the user to an activity from elsewhere, such as from a notification or even from a different app.
Other components, such as broadcast receivers and services, allow your app to perform background tasks without a UI.
Applications in Android
Android initially came into existence with the sure fire idea that developments are given the power and freedom to create enthralling Mobile applications while taking advantage of everything that the mobile handset has to offer.
Android is built on open Linux Kernel. This particular software for Mobile Application is made to be open source, thereby giving the opportunity to the developers to introduce and incorporate any technological advancement. Build on custom virtual machine android gives its users the addition usage and application power, to initiate an interactive and efficient application and operational Software for your phone.
Google’s mobile operating device, the android is its awesome creation in the definitive creation of Software Applications for the mobile phone arena it also facilitates the g-juice in your mobile thus initiating a whole new world of Mobile Technology experience by its customers.
Apps adapt to different devices
Android allows you to provide different resources for different devices. For example, you can create different layouts for different screen sizes. The system determines which layout to use based on the screen size of the current device.
If any of your app's features need specific hardware, such as a camera, you can query at runtime whether the device has that hardware or not, and then disable the corresponding features if it doesn't. You can specify that your app requires certain hardware so that Google Play won't allow the app to be installed on devices without them.
Compatible for different devices
Android is designed to run on many different types of devices, from phones to tablets and televisions. As a developer, the range of devices provides a huge potential audience for your app. In order for your app to be successful on all these devices, it should tolerate some feature variability and provide a flexible user interface that adapts to different screen configurations.
Use of Andriod Application
It is currently used in various devices such as mobiles, tablets, televisions etc. Android provides a rich application framework that allows us to build innovative apps and games for mobile devices in a Java language environment.
Can set device configurations to achieve largest user base
- Device features
- Platform version
- Screen configuration
In my study I found that android device is compatible to various devices and can be developed as responsive. It can be programmed in various languages Kotlin, C++ languages and Java, React Native programming language and use Java core libraries. Android application can be downloaded from various platform like Google play store. It can be programmed for various purposes.
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