What background do i need to become an app developer android#
All android apps have an application class, one or more activities, and one or more fragments. You should also consider the array of android supported sensors or UI facilities. You also require appropriate fonts, assets, and layouts that will help in ensuring that the best possible experiences in the various screen characteristics are given. Note that, if your device supports more devices and/or versions it will definitely require more maintenance and testing as well as the related costs. Awareness over Fragmentations, Android Application, Threads, Loaders, and TasksĪndroid is a fragmented market with many different devices and operating system versions. Intents also bind individual components to one another at runtime whether the component belongs to your app or not.Ĥ. services, activities, and broadcast receivers). Generally, it is a gateway to the other components and it only does minimal work.Ī synchronous message referred to as intent activates 3 of the 4 components (i.e. Most of the broadcast receivers originate from the system, and although they do not display a user interface, they can create a status bar notification that alerts the user when a broadcast event occurs. This is the component that responds to system-wide broadcast announcements. This component is also useful for writing and reading data that is not shared and is private to your app. Through this component, the data that you store either in the file system, on the web, an SQLite database can be queried or even modified (as long as the content provider allows it). This is the component that manages a shared set of app data. It does not provide a user interface (for instance it might play music in the background while the user is in a different app).
This is a component that runs in the background to perform work for remote processes or long-running operations. However, each one of them is independent. Activities work together to form a cohesive user experience in the app. This is a component that represents a single screen with a user interface (for instance, an email app may have one activity showing a list of new emails, another activity composing emails, and another one reading emails). There are five different types of app components each serving a distinct purpose with a distinct life cycle which defines how it is created and destroyed.
Although each one of them exists as its own entity and plays a specific role, there are some which depend on each other, and not all of them are actual entry points. Each of the components is a different point by which the system can enter your app. Knowledge of the Application ComponentsĪpplication components are the essential building blocks of Android app development. To understand the basic concepts and terms of how the platform operates, you can use the Git Pocket Guide.ģ. Learn git and then create a git-source repository (by creating an account on Bitbucket or GitHub). It is also important that you familiarize yourself with source control tools and concepts. You can learn Apache Maven, Apache Ant, and Gradle as they provide a powerful set of tools to help in managing your builds. You can use Android app studio IDE or Eclipse for the tools they will help you learn the basics and many other things that will help improve your code. If you are stepping into Android App development, it is very important that you familiarize yourself with the build automation tools as well as the integrated development environment before you start developing your app. Familiarity with the Right Application Development Tools and Environment Proper understanding of Java and XML will help you build/develop a more robust and elegant android app. Some of the fundamentals of the Java programming language include:
Knowledge and mastery over these programming languages are, therefore, prerequisites to developing an Android app. Java and XML are the two main programming languages used in Android App development.
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