Android Development | Best Practices

Android Development | Best Practices

Let’s examine some best practices to be followed whereas planning and developing android apps.


While building your career as Associate in Nursing android developer, there square measure a couple of vital things that you just should detain mind, if you would like to extend your probabilities of success. It doesn’t matter if you would like to create your own project or work for a recognized company, there square measure some essential aspects that ought to ne'er be neglected whereas developing Associate in Nursing app.

Always maintain the code quality. Quality matters loads. It’s not solely concerning most valuable player, MVC, MVVM etc., however additionally concerning every bit of code, in every a part of your app. Here’s a brief description for MVVM, MVC, and MVP.

MVC: 3 elements — read (your UI), Model (data — that read is displaying) & Controller (contains the logic that alters the model betting on the action triggered by UI).
It’s wide best-known that MVC could be a compound pattern (View and Controller have Strategy Implementation, read itself are often a Composite Implementation and, read and Model square measure synched through Observer). during this case, Controller doesn’t recognize something concerning read, and therefore the plan is that a read will switch Controllers (for instance, relying upon World Health Organization has logged to the system) Controller are often utilized by multiple Views.

MVP: once more 3 elements, however with modified dependencies (look at arrows within the diagram). up here we have a tendency to replace Controller with Presenter (one that presents the changes exhausted model back to view). the most distinction is that Presenter refers back to the read whereas Controller doesn’t. traditional pattern found here is to form Associate in Nursing abstraction of the read (in terms of properties/ events) & Presenter refers to that.

MVVM: Model-View-View-Model talks of making a brand new model (in addition to your domain model). This model unremarkably adds further properties from the angle of read (as we have a tendency to perceive that read has controls additionally to information that it’s displaying). as an example, if read had a property IsChecked and Presenter was set in classic most valuable player, in MVVM Presenter can have that IsChecked Property that read can correct up with. thus currently a Presenter becomes additional sort of a combination of — read Properties & Model properties which might be synchronic with read. thus why not rename Presenter to ViewModel? try this and you get MVVM.

Always embody unit tests. this can be the foremost vital a part of application development. i like to recommend running unit tests on JVM, as a result of it’s a lot of quicker than running it on Associate in Nursing android device itself or Associate in Nursing aper. If you need any android dependencies, use Robolectric. If you would like to mock some objects whereas testing, use Mockito.

Don’t Use Floating-Point. Floating-point is concerning 2x slower than whole number on Android-powered devices.

Beware of mistreatment libraries. make sure the external libraries you employ in application solely need required permissions and don't cause any performance degradation.Think twice before adding any third party library, it’s extremely a significant commitment.

Get eliminate memory leaks with Leak Canary. We’ve all been bitten by heart leaks that cause
OutOfMemoryError crashes in our apps at some purpose, typically even in production. Square’s Pierre-Yves Ricau has solved  this downside by building LeakCanary, a tool to find and facilitate fix memory leaks before they ship.

Use Proguard. this can take away all unused code, which can cut back APK size.

Use android correct info. It permits you to look at databases and shared preferences directly in your browser.

Perform file and network operations off the UI thread. They take time, and if done on the UI thread will build the app unresponsive, which may result in “App Not Responding” error. they must continually be performed on a employee thread, usually by mistreatment Associate in Nursing AsyncTask/Loader.

Build apps in record time with Flutter. Flutter is Google’s mobile UI framework for crafting high-quality native interfaces on android in record time. Flutter works with existing code and is employed by developers and organizations round the world. it's free and open supply.

Use StringBuffer or Stringbuilder categories once there's loads of modifications to string of characters.

And keep testing on totally different OS versions and devices.

Happy Learning

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