There are various points that android builders have to concentrate to when constructing an app. Android, as a platform, may be very large and highly regarded largely as a result of it’s free, simply customizable and likewise out there throughout varied gadgets. With the evolution of android persevering with fixed updates and the platform turning into extra mature compared to the primary AOSP launch, the expectation from the customers have continued to extend as properly.
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Nevertheless, with the large enhancements on this platform, many app builders nonetheless make many avoidable errors. Many of those errors are resulting from logistics however they’re errors that may be prevented by simply sticking to the fundamentals.
Earlier than you begin to develop an app, there are issues you need to know which is able to information you and show you how to construct a glitch-free app. With out this primary information, you make foundational errors. And listed below are seven widespread errors app builders make.
1. Growing An Android App For Apple iOS
There was a time when the app growth commonplace was iOS and builders need to construct an iOS clone. However that’s not the case as Apple is not the usual for app growth. It’s subsequently seen as absurd and completely pointless when a developer nonetheless builds an iOS clone. That is at the moment one of many worst methods for android app growth. However there are nonetheless builders right here and there that make this error.
The Android platform has been round for therefore lengthy and has grown a lot that the iOS design is now thought of to be a really horrible technique that may have an effect on the person expertise of the app.
2. Growing With out Intents
There are a selection of android builders who create apps with out utilizing Intents. However Intents is a key part of android and is crucial in the course of the app constructing course of. Intents are used to move information or info between the quite a few elements of the app or between the apps on the system. Add a selected command earlier than beginning your SMS Intent.
Though these instructions are fairly necessary for a lot of causes, you need to use SMS Intents as a result of it helps with plenty of capabilities and makes the operation on the system easy whereas it additionally carries out many different duties corresponding to; sharing content material, utilizing native apps to open hyperlinks recording video, including occasions, taking footage, and selecting contacts.
3. Blocking The Predominant Thread
The aim of the primary thread is to make it possible for the app has a person interface that’s responsive. And this is essential to the person expertise. The widespread rule of thumb is that, when you have got lower than 24fps and a delay of greater than 100ms, the person interface might be perceived as much less responsive and never easy.
This may carry a couple of delay within the suggestions for the person’s motion and also will trigger the android app to cease responding. This could typically result in frustration for the person and so they can provide damaging suggestions for the app.
To make sure that the primary thread is just not blocked, use background thread for database querying, picture processing, SD writing/studying, bitmap loading, and community calls.
4. Writing Your Personal New Codes
Keep in mind how we mentioned that android has been in existence for therefore lengthy and the way it’s improved drastically over time? This additionally implies that a lot of the primary codes that you’ll want to construct an android app have been written already. So, it’s completely pointless so that you can even consider writing your individual new codes particularly for widespread issues corresponding to database entry, community calls, social login, picture loading, and JSON parsing. These are the widespread issues that each one android apps do.
You shouldn’t write new codes for these items, there are codes already written which were examined and tried and have been used numerous instances. Follow this norm. Use:
- Picasso for picture loading.
- Gradle for the construct system.
- Gson/Jackson for JSON Parsing.
- Retrofit / Volley for community calls
- Frequent implementation for social login.
5. Failure to Use fragments
They function inside a selected exercise however fragments are particular person constructing blocks and every of them has their very own lifecycle.
You should use father or mother exercise to manage fragments and this makes it a robust instrument to optimize your content material and make sure that it matches into completely different display screen parameters. One of many benefits of fragments is the truth that they’re versatile and may be re-used repeatedly. It is usually simple to reposition them and they’re efficient in combining with different operations.
6. Inefficient Bitmaps Show
In the event you show your pictures correctly, it is not going to take up as a lot reminiscence as pictures take up usually. However many builders have no idea how you can handle disk caching and reminiscence strategically as they load the reminiscence with a number of bitmaps and this is likely to be a motive for the person interface to turn into much less responsive.
Frequent methods to be environment friendly with bitmaps in your app are:
- Scale or crop massive pictures.
- Present what the app can current.
- Measure the show displaying the photographs.
You might additionally use a instrument corresponding to Glide to show, decode and fetch bitmaps within the app.
7. Growing An App For One Machine
There are numbers of android gadgets round now and a precedence for the developer needs to be to make the app pretty much as good as they are often on each system, despite the fact that that’s extremely unlikely. Nevertheless, there are some programming methods that you need to use to enhance the looks of your app on these gadgets:
- Don’t use Regular Pixels. Use density-independent pixels as a substitute.
- Incorporate sources a number of instances so it covers completely different orientations and densities.
- Resize the 9-patch drawables to suit the display screen.
- Replicate android gadgets utilizing Genymotion or Android Emulator.
All of those errors are very avoidable. By merely doing the suitable factor and following the fundamentals, these fails will avoid you.