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App performance to drive app excellence


Posted by Maru Ahues Bouza, Director Android Developer Relations

hand drawing shapes on a tablet

In our earlier weblog publish on this sequence, we outlined app excellence as “creating an app that gives constant, easy, and seamless app consumer experiences. It’s excessive performing and gives a terrific expertise, regardless of the gadget getting used.” Let’s concentrate on the idea of app efficiency — what are the options of excessive performing apps, and the way do you obtain app excellence by way of robust efficiency?

From a consumer’s perspective, high-performing apps “simply work.” Nonetheless, the method of making a excessive performing app is just not at all times easy. To interrupt issues down, listed here are the primary dimensions of excessive efficiency:


An app ought to be sturdy and dependable. It mustn’t freeze (software not responding, or “ANR”) or crash. Earlier than you launch your app, try Google Play’s pre-launch report to determine potential stability points. After deployment, take note of the Android Vitals web page within the Google Play developer console. Particularly, ANRs are brought on by threading points. The ANR troubleshooting information might help you diagnose and resolve any ANRs that exist in your app.

Fast loading

Think about the primary expertise a consumer has of your app is…..ready. Sooner or later, they’re going to get distracted or bored, and you’ve got misplaced a brand new consumer. Your app ought to both load rapidly or present some form of suggestions onscreen equivalent to a progress indicator. You should use knowledge from Android vitals to quantify any points you will have with begin up instances. Android vitals considers extreme begin up instances as:

  • Chilly startup takes 5 seconds or longer.
  • Heat startup takes 2 seconds or longer.
  • Sizzling startup takes 1.5 seconds or longer.

Nonetheless, these are comparatively conservative numbers. We advocate you goal for decrease. Listed here are some nice ideas on the right way to take a look at begin up efficiency.

Quick rendering

Prime quality body rendering is not only for video games. Easy visible experiences that don’t stall or act sluggish are additionally vital for apps. At a minimal goal to render frames each 16ms to realize 60 frames per second, however keep in mind there are gadgets out there with quicker refresh charges. To watch efficiency as you take a look at, use the Profile HWUI rendering possibility. Right here are instruments to assist diagnose rendering points.

Economical with battery utilization

As quickly as a consumer realizes your app is draining their battery, they’re going to think about uninstalling. Your app can drain battery by way of caught partial wake locks, extreme wakeups, background Wifi scans, or background community utilization. Use the Android Studio vitality profiler mixed with deliberate background work, to diagnose sudden battery use. For apps that have to execute background duties that require a assure that the system will run them even when the app exits, WorkManager is a battery pleasant Android Jetpack library that runs deferrable, assured background work when the work’s constraints are glad.

Utilizing up-to-date SDKs

For each safety and efficiency, it’s vital that any Google or third-party SDKs used are up-to-date. Enhancements to those SDKs, equivalent to stability, compatibility, or safety, ought to be out there to customers in a well timed method. You’re accountable for the complete code base, together with any third celebration SDKs chances are you’ll make the most of. For Google SDKs, think about using SDKs powered by Google Play companies, when out there. These SDKs are backward appropriate, obtain computerized updates, cut back your app bundle dimension, and make environment friendly use of on-device sources.

To study extra, please go to the Android app excellence webpage, the place you can see case research, sensible ideas, and the chance to join our App Excellence summit..

In our subsequent weblog posts, we are going to speak about seamless consumer experiences throughout gadgets. Signal as much as the Android developer e-newsletter right here to be notified of the subsequent installment and get information and insights from the Android workforce.

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