Android is one of the most preferred platforms for developing apps. 85% of smartphones are using Android OS. With such popularity comes high competition. There are a total of 2.8 Million apps in the Google Play Store which you should know if you are looking forward to developing and launch your Android app.
With such heavy competition, there is no room for making any mistake if you want to survive in the competition and be able to generate revenue out of it. An Android training institute must teach what to do while developing an app but it is equally important to teach what not to do at the same time. Here are some of the most common mistakes you should avoid while developing an Android app.
1) Rewrite Existing Code
It is one of the most basic mistakes in Android app development. Certain features like social login, JSON parsing, network calls, database access, image loading, etc are most probably used in the majority of the Android apps. Rewriting code for the above-mentioned features is a huge mistake. It consumes a lot of unnecessary time. These features already have ready-made codes that are written, tested, and used plenty of times to date. Now, rewriting already written code is a mistake you should not make as an Android developer. Instead, you should do some research about already available feature codes and which of them can be used in your app.
2) Using Improper Bitmaps
Smartphone users love accessing content through visuals and most probably the images. One of the issues with an app filled with images is higher memory consumption and loading time. The image has to be loaded in the memory before it loads on the screen which needs usage of bitmaps. Bitmaps are one of the most common techniques used by Android developers for this. However, it is extremely important to understand the concept of bitmaps and use it properly. Make sure to measure the view where you are going to display the image, scale it and show only what can be displayed.
3) Not Following List View Hierarchy
Developers are already using deep view hierarchy for a long time for the layout. The layout consists of an XML presentation in Android. For drawing the necessary content, XML has to be parsed, the screen size has to be measured and elements have to be placed appropriately. This entire process needs to be optimized and can be time-consuming with a whole lot of resources involved. By using the list view, the hierarchy can be flattened and make the entire process optimized. This is what makes the developers save their time and make the development fast.
4) High Waiting Time
Data packages are not sent on the instant. It takes time to get acknowledged, processed and get received. There is a mandatory time delay in the process which makes the users wait. There are cases where there might be network issues and the packages get high time to delivered or the worse gets destroyed in the way and it never gets completed. The probability of success calls is more as compared to the unsuccessful ones. However, a single occasion of failure or long waiting time will make the users abandon the app.
So, you will know what you should be doing in your Android classes but what you should not be doing can be learned from this blog. Stay tuned to Developers Academy blog for more interesting dos and donts for developers.