naxmister.blogg.se - Android studio app running very slow

How often is the framework re-rendering components?Īs we will see, even when following best practices, sometimes they’re not enough to prevent slow performance.

How much is the app actually rendering?.

This is not to say it can’t happen, but I would start questioning two other possible issues first:

“How long did it take to sort ”?īut when you’re developing an application, these optimizations may count much less than you think.

“How much did it take to find an item in this list ?.

The first thing people look at when trying to find the reason why they’re experiencing poor performance is to debug every function call: The ones above are all very valid points if you are coding performance-critical applications, frameworks or libraries. I always thought there was something else going on.

“Let’s use a dictionary for accessing data faster!”.

“We’re using too much reduce, map and filter, let’s replace them all with for loops!”.

Whenever I’ve had to deal with performance issues, many colleagues were pointing out at code that could have been causing these issues, which very often happened to be micro-optimizations that would only save a few milliseconds. In my experience, this is a very misunderstood topic among developers. It’s a good way to guarantee high quality, scalable and maintainable code.Įxample: searching for shared components in bit.dev Micro Optimizations: Do they Matter?

This way you and your team can easily find them, import them to any project and develop them further if needed. Use tools like Bit ( Github) to “harvest” reusable components from your codebase and share them on bit.dev. Tip: as we all know, rewriting code is a recipe for bad code.

What we will see is that it doesn’t really matter the framework used - these tips will be valid for any framework. In this article, I want to show some of the most important reasons why Angular apps become slow at scale. While most of it is totally good and valid advice, what I have personally found while mitigating performance issues is not often talked about. There are loads of resources and popular advice out there about improving performance with Angular apps. With that said, some difficulties will eventually arise when we are writing either performance-critical apps, apps with large and complex content, or apps updated extremely frequently. While it leaves ample space for improvement by opting out some of its magic, we almost never have to do anything special to write extremely performant code for the average app. Photo by Chris Liverani on Unsplash IntroductionĪngular is, by default, a fast and performant framework.