SmoothScroller implementation which uses a LinearInterpolator until the target position becomes a child of the RecyclerView and then uses a DecelerateInterpolator to slowly approach to target position. If the RecyclerView. LayoutManager you are using does not implement the RecyclerView. All the LayoutManagers bundled with the support library implement this interface. Decides if the child should be snapped from start or end, depending on where it currently is in relation to its parent.
Helper method for calculateDxToMakeVisible android. View, int and calculateDyToMakeVisible android. View, int. Calculates the horizontal scroll amount necessary to make the given view fully visible inside the RecyclerView.
Calculates the vertical scroll amount necessary to make the given view fully visible inside the RecyclerView. Calculates the time for deceleration so that transition from LinearInterpolator to DecelerateInterpolator looks smooth. When scrolling towards a child view, this method defines whether we should align the left or the right edge of the child with the parent RecyclerView. When scrolling towards a child view, this method defines whether we should align the top or the bottom edge of the child with the parent RecyclerView.
RecyclerView will call this method each time it scrolls until it can find the target position in the layout. When the target scroll position is not a child of the RecyclerView, this method calculates a direction vector towards that child and triggers a smooth scroll.
This method was deprecated in API level Use jumpTo int. Returns true if SmoothScroller has been started but has not received the first animation callback yet.
Fast Scrolling with RecyclerView
Constant Value: -1 0xffffffff Fields mDecelerateInterpolator added in version SmoothScroller should check dx, dy and if scroll should be changed, update the provided RecyclerView. Action to define the next scroll. Called when the target position is laid out. This is the last callback SmoothScroller will receive and it should update the provided RecyclerView. Action to define the scroll details towards the target view.
Content and code samples on this page are subject to the licenses described in the Content License. The second Android 11 Developer Preview is now available, test it out and share your feedback. Android Developers. State state, RecyclerView. Action action RecyclerView will call this method each time it scrolls until it can find the target position in the layout.
Action action Called when the target position is laid out. View, int calculateDyToMakeVisible android. LinearSmoothScroller added in version See also: calculateSpeedPerPixel android.Menu Menu. Search Everywhere Threads This forum This thread. Search titles only.
Make scrolling move faster in scrollRect?
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Its just not smooth. Hard to explain, but im used to the iphone 5 scrolling which is smooth as butter. Anyone that goes back and forth between ios and android should know what im talking about.
Jul 22, 3, 9 AustinInDallas said:. NikolaeVarius Lifer.In its early days, Android was a slow and buggy mobile platform. Even the most powerful smartphones that were released each year would experience stuttering and stammering while performing the simplest of tasks, like scrolling or opening apps. And if your Android flagship phone was actually doing some heavy lifting like playing a resource-intensive game, it was a total mess.
Modern Android flagship phones — and even some mid-range Android phones — are much smoother than they were even as recently as a few years ago. Top flagships are still powerhouses, and now the Android operating system no longer holds them back. Optimizations made by Google within Android are partially to thank, but manufacturers have fine-tuned their own software as well. Why is the iPhone so darn smooth? There are a few main reasons.
The transition animations that take place as you open, close, and switch apps in iOS are faster and smoother than their counterparts in Android.
Stop for a moment and think about what you actually do when you use your phone. Every time you do any of that, a transition animation is displayed, and the speed of that animation indeed has a big impact on your perception of smoothness and speed.
On Apple devices, those animations are lightning-fast and very smooth. Of course, Android is far more flexible than iOS in so many ways, and the ability to adjust the speed of those animations is among them. This is an awesome, important feature that has a profound impact on the overall user experience, and we want as many people as possible to be aware of it. Do you want to try it out? To speed up your transition animations, tap Developer options and scroll down until you see the following items note that you may need to open the Advanced settings depending on which phone you have :.
Give it a shot. Tags: AndroidgoogleSamsung. Zach Epstein has worked in and around ICT for more than a decade, first in marketing and business development with two private telcos, then as a writer and editor covering business news, consumer electronics and telecommunications.
Magazine's top Internet of Things experts.Joinsubscribers and get a daily digest of news, geek trivia, and our feature articles. Some stickier scroll wheels take all the strength you have to get down a notch or two, while others can be too loose and will have you hugging the bottom of the page with a light flick.
You can do this by either clicking on the scale and tapping left or right on your arrow keys, or holding the indicator down and dragging it to the number you want. Once the mouse dialog pops up, you should see a window that looks something like this. Every time you scroll a notch, the wheel will skip an entire page of content at once, rather than going through it line by line. Which scroll speed is right for you will be based on your mouse and your own personal preference.
Keep in mind that your mouse may also have its own additional sensitivity settings, either on the mouse itself or in the software that came with it.
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Skip to content. How-To Geek is where you turn when you want experts to explain technology. Since we launched inour articles have been read more than 1 billion times. Want to know more?Continuing with Support Library 26 features if you missed the one with downloadable fontsa much awaited feature was enabled : fast scrolling for RecyclerView. Of all the great advantages RecyclerView has over ListView, one feature that I miss a lot is fast scrolling where you could drag a thumb drawable and scroll around the list.
In ListView you could do the following :. But with RecyclerView, there is no easy way to have a thumb drawable like so :. So we would rely on libraries like this and this. With Support Library 26, we can easily enable fast scrolling for RecyclerView. The app build. This is what our layout file for the activity looks like :. I have setup a simple RecyclerView filled with mock data that shows US states and their state code.
It looks something like :. The updated xml file looks like :. This is what it looks like :. This is a basic example of enabling fast scrolling. It will be interesting to see how we can customize it to show letter initials like in the Contacts app.
Sign in. Archive About Submit your article. Fast Scrolling with RecyclerView. Shaishav Gandhi Follow. AndroidPub Follow. See responses 9. More From Medium. More from AndroidPub. Wajahat Karim in AndroidPub. Alistair Sykes in AndroidPub. Discover Medium. Make Medium yours. Become a member. About Help Legal.Posted by: admin November 24, Leave a comment. It works fine without reflection and is very flexible. Also there is no need for making custom ViewPager and putting it into android.
Here is an example:. As you can see in ViewPager sources, duration of fling controlled by mScroller object. In documantation we may read:. The duration of the scroll can be passed in the constructor and specifies the maximum time that the scrolling animation should take. It calculates the duration based on a few things. See anything we can control? OnPageChangeListener in our adapter. The following is Kotlin impl of this part of the adapter which turns the duration into If you have to support settling after a drag, then you need to do a bit more in your calculation.
One downside is that this depends on that hardcoded base duration value in ViewPager. If that changes, then your durations change with this approach.How to Speed Up Android for Better Performance!
I wanted to solve the same issue as all of you and this is my solution for the same problem, but I think this way the solution is more flexible as you can change the duration however you like and also change the interpolation of the values as desired to achieve different visual effects.
I think this is the most flexible solution for performing this task.
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Hello Andre, I appreciate your swift reply. I don't think that there is anything wrong with the scroll speed in Edge that needs to be repaired, I believe it is working as it is intended. However, the problem is that for me, the default speed seems slow. Specifically, I feel as if I need to scroll more than I would like in order to advance down the page. This is a brand new laptop, out of the box with only default apps installed.
I followed your instructions anyway and nothing has changed. April 14, Keep in touch and stay productive with Teams and Officeeven when you're working remotely. Site Feedback. Tell us about your experience with our site. How can I do this? I am using my Microsoft Surface Laptop's built-in track pad to scroll.
This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread. I have the same question Andre Da Costa Replied on May 26, Give this a try first Check the Store for updates. Thanks for marking this as the answer. How satisfied are you with this reply?