ANDROID STUDIO SET SPEED OF SMOOTHSCROLL TO POSITION HOW TO
ANDROID STUDIO SET SPEED OF SMOOTHSCROLL TO POSITION ANDROID

ANDROID STUDIO SET SPEED OF SMOOTHSCROLL TO POSITION ANDROID

For further details go to the official developerвЂ™s Android site WhatвЂ™s new with ViewPager2ДЄs I mentioned above, the most important point is that ViewPager2 is built on RecyclerView component. To migrate to AndroidX you can do it with Android Studio easily by clicking Refactor menu and then select Migrate to AndroidX. In this article, I wonвЂ™t go into AndroidX migration too deeply but just to say/mention I didnвЂ™t encounter any big issue s during migration even in the big scale project. First of all, you need to migrate to AndroidX because ViewPager2 is not supported in the android.support library. The biggest change in the ViewPager2 API is that it now uses the RecyclerView. ViewPager2 is the replacement of ViewPager and is much better. So, what we can do is that we can create a single ViewPool and pass it to all the inner RecyclerViews so that it gets shared like below: class OuterRecyclerViewAdapter() : RecyclerView.Earlier this year, Google announced ViewPager2 alpha-04 in Google IO/19. The pool does not get shared between two RecyclerViews having the same types of views. OuterRecyclerViewД«ut by default, the optimization works for that particular RecyclerView because that particular RecyclerView has its own View Pool. If we have the use-case of Nested RecyclerView. tHasFixedSize(true) Use setRecycledViewPool for Optimizing Nested RecyclerViewДЄs we know that the RecyclerView works on the principle of 'Reuse View Using Pool' wherever possible.Д¬heck How does RecyclerView work internally? We should use this method if the height of all the items is equal. Nesting reduces RecyclerView performance. If possible, we should avoid a nested view and try to create a flat view wherever possible. It indicates whether each item in the data set can be represented with a unique identifier of type Long.Д®ven if we call the notifyDataSetChanged(), it does not have to handle the complete re-ordering of the whole adapter because it can find if the item at a position is the same as before and do less work. In case, we are forced to use notifyDataSetChanged() based on our use-case, we can try the setHasStableIds(true). adapter.notifyItemRemoved(position)ДЄdapter.notifyItemRangeInserted(start, end) Whenever we have the use-case of the removal, the updation, the addition of item, use the Notify Item API. We can see the improvement in our RecyclerView by doing so.

We should check our onBindViewHolder method and optimize it. Our onBindViewHolder method should do very less work. Problem Solved! Do less in onBindViewHolder method Then, we will be able to set the width and height prior only. So, we should ask our backend developer to send the image size or the aspect ratio, accordingly, we can calculate the required width and height of the ImageView. If we do not set the correct image width and height prior, the UI will flicker during the transition of loading(downloading of image) and setting of the image into the ImageView(actually making it visible when downloading completes). If our image width and height are dynamic(not fixed), and we are getting the imageUrl from the server.

If you are curious to know: How The Android Image Loading Library Glide and Fresco Works? Read here. So, always use Image-Loading libraries.Дelegate all the image-related tasks to these libraries. The best part is that Image-Loading libraries like Glide, Fresco uses this bitmap pool concept. By using the bitmap pool concept, we can avoid it. Let's get started Use Image-Loading LibraryДЄs the Garbage Collection(GC) runs on the main thread, one of the reasons for unresponsive UI is the continuous allocation and deallocation of memory, which leads to the very frequent GC run. Let's see what are the things which we can do to improve the performance of the RecyclerView and hence, we get the smooth scrolling. It leads to bad user experience as it seems that our Android App is laggy.

When we implement RecyclerView in our Android Application, sometimes, we face problems like: The RecyclerView items are not scrolling smoothly. With these optimizations, we can make the RecyclerView scrolling smooth.

ANDROID STUDIO SET SPEED OF SMOOTHSCROLL TO POSITION HOW TO

In this blog, we are going to learn how to optimize the RecyclerView performance in Android.

Android studio set speed of smoothscroll to position