Fundamental of Developing With Android Studio While Creating an App

The cool features that appear along with an app are what draw the interests of users. Apps make phones ‘smart’ have acutely transformed the functioning of the present generation.

Skillful programmers are getting busy, designing and building apps of their own and embedding them with favorable features. If you’re one of those addicts, here are 5 fundamentals that you require to check before programming an Android App.

1. Ability over the language

Java and XML are the two main programming languages utilized in Mobile App Development . Knowledge and ability over these programming languages are, therefore, essentials to develop an Android app. Some of the fundamentals of the java programming language include:
  • Packages
  • Objects & classes
  • Inheritance & interfaces
  • Strings & numbers, generics
  • Collections
  • Concurrency
Proper understanding of Java and XML will assist you build/develop a more sturdy and classic android app.

2. Familiarity with the right development tools and environment

It is very essential that you familiarize yourself with the build automation tools as well as the integrated development environment before you begin developing your app. You can use Android app studio IDE or the Eclipse for the tools and they will assist you learn the basics and many other things that will assist improve your code. You can learn Apache Maven, Apache Ant and Gradle as they give a powerful set of tools to assist in managing your builds.

 3. Knowledge of the application parts

Application parts are the essential building blocks of an android app. Each of the components is a different point by which the system can enter your app. And although each one of them exists as its own entity and plays a particular role, there are some which depend on each other and not all of them are certain entry points.

There are 4 various types of app components each serving a specific purpose with a specific lifecycle which defines how it is created and destroyed. They include:

Activities: This is a part that represents a single screen with a user interface (for instance, an email app may have one activity displaying a list of new emails, another activity composing emails and another one reading emails). Activities work together to form a cohesive user experience in the app. However, each one of them is independent.

Services: This is a part which runs in the background to perform work for remote procedures or long-running operations. It does not give user interface (for instance it might play music in the background while the user is in a different app).

Content Providers: This is the part that manages a shared set of app data. Through this part, the data that you store either in the file system, on the web, a SQLite database can be queried or even modified (as long as the content provider permits it). This component is also helpful for writing and reading data that is not shared and is private to your app.

Broadcast Receivers: This is the component that responds to system-wide broadcast announcements. Most of the broadcast receivers derive 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 appears. Generally, it is a gateway to the other components and it only does minimum work.

Activating Parts: A synchronous message assigned to as intent activates 3 of the 4 parts (i.e. services, activities and broadcast receivers). Intents also bind personal parts to one another at runtime whether the parts belong to your app or not.

4. Awareness over fragmentations, android application, threads, loaders and tasks

Android is a fragmented market with many various devices and operating system versions. Note that, if your device supports more devices and/or versions it will definitely need more maintenance and testing as well as the related costs. The vice-versa is also true. You also require applicable fonts, assets and layouts that will assist in assuring that the best probable experiences in the different screen characteristics are given. You should also consider the array of android supported sensors or UI facilities. All android apps have an application class, one or more activities and one or more fragments.

Sometimes, you may have services for background tasks that should run progressively but other times you may not. If you want to deliver a great and smooth user interface, ever ensure that the thread is never blocked.

5. Making the right choice over needed tools

The easy tools that you need are just a Mac or Windows PC, any kind of Linux, and Eclipse, the ADT Plug in, and the Android SDK which are all free. You can go through the installation guide on Google so as to know how to set up your development environment. It has documentation of everything needed. Android has some unique parameters that you should consider when writing an android app. Some of them include:

Performance and responsiveness: You should ever respond to user input within five seconds otherwise the operating system will ANR you. (ANR-application not responding – the only option that you will have is to force close your app.)

Lag of more than 100ms will be noticed by the users: As mentioned above, the UI thread should never be blocked because it is only one.

Limited resources: Wake-locks (mechanism that forces the device to do a certain thing despite the suggestions to put the device to sleep by the battery manager) should be utilized sparingly. Do not unnecessarily poll hardware (e.g. GPS or accelerometer) because it will rapidly run down the battery.

Like any other product you build, good execution is only adequate if you’re working on a project that users actually find useful. Before you get began building any mobile application, take time to write down your hypothesis – who will use your app and what issue will it solve? Then wireframe your application utilizing a tool like Sketch, and display it to people in your target demographic.


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