An application can be defined as a set of instructions that are written in a programming language and executed by the computer. It is also known as an app.
An Android app is a software program that runs on the Android operating system. These apps are written in Java, compiled with the Android Development Kit (ADK), and then converted into an APK file format for distribution to users.
An Android application consists of four components:
Activities are the most common element in Android apps. They are fundamental to the user experience and are used to provide a cohesive navigation flow. Activities can be classified into two categories:
Fragments are used when there is a need for more than one screen in an activity. They allow developers to break up the UI into modular pieces that can be reused across activities, which saves time and effort.
Intent filters tell Android which intents it wants to handle. It's important that intent filters match all of the required parameters for an intent so that they can properly respond to it.
Activities are fundamental parts of any app, they provide cohesive navigation flow and they have two types: activities and fragments.
Android permissions are one of the most important aspects of the operating system. They are there to protect your privacy and security.
The three types of permissions are normal, dangerous, and signature. Normal permissions are required to use various applications on the phone. Dangerous permissions allow for more sensitive actions that may compromise your privacy or security. Signature permissions are used by apps that come from sources other than Google Play Store or Android Market.
Normal Permissions: The normal type of permission is required by any app that wants to access certain features on your device such as reading contact data, receiving text messages, or accessing the camera. These permissions can be denied by you at any time if you feel uncomfortable with them being granted automatically while installing an app.
The Android application is an open source software package that is used for mobile devices. It was created by Google and is also the world's most popular operating system. The Android operating system powers more than 2 billion devices worldwide, including phones, tablets, wearables, TVs, cars, and other gadgets.
The different components of the Android application are:
Android frameworks are used to simplify the development of Android apps. They provide a set of classes and tools that developers can use to build their own app.
Developers can use these frameworks to reduce the amount of time it takes to build an app, which is important when you have a tight deadline.
There are also some frameworks that offer more advanced features, such as navigation or data management, so developers don’t have to reinvent the wheel every time they start a new project.
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Very helpful videos lectures
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Very helpful in growing skill in making Android application