![]() ![]() And what it gives us, is a great opportunity to prepare it for an initial drawing, make various calculation, set default values or whatever we need.īut to make our view easy to use and setup, there is useful AttributeSet interface. For some reason Google does not provide an official diagram of view lifecycle, it is quite a widespread misunderstanding between developers that leads to unexpected bugs and issues, so let's keep our eye on it!Įvery view starts it's life from a Constructor. The very first thing we need to do is jump into View lifecycle. It will show you the overall view structure, how to implement specific things, how to avoid common mistakes and even how to animate your view!Ĭheck our case study on developing Parrot AR.FreeFlight, drone control application for Android mobile platform. If you have not tried working out a custom view, then this article is a great opportunity to stay closer to drawing your own flat custom view. A complete custom view that requires manually drawing.A big view hierarchy that is complex to operate and support.If you have a lots of views in your layout and you want to optimize it by drawing a single custom view to make it lighter. Well, since most of custom views are more time consuming than the regular ones, you should only make it, if there is no easier way to implement a specific feature or you have the following issues that custom view could have resolved: If you have similar functionality and lack the time to implement it by yourself, then find it on github repo. Fortunately enough that view is quite reusable in projectsnowadays, so to save personal time and the time of other developers, we decided to make a public library based on that view. We spent a decent amount of time trying to implement it. ![]() Unlike iOS, Android does not provide such a view, so we had to implement it as a custom one. Recently we've got into a similar situation: my task was to create a page indicator for Android ViewPager. Read also Business Points for Choosing Native or Hybrid App Development.
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