smooth-scrolling

Improving Scroll Smoothness in an Android ListView

由 |▌冷眼眸甩不掉的悲伤 提交于 2019-12-10 12:54:21
问题 I have a an Android ListView that has small (say, 1-5 frame) stutters as it is scrolling, about every second or so. I realize that many Android phones have these problems with animation smoothness, however, on my phone (Motorola A855 running Android 2.2), the native contact list scrolls quite smoothly. The item view in the contact list is more complex than the item view in my list, which is: <RelativeLayout> <TextView /> <TextView /> </RelativeLayout> I only want to achieve smoothness as good

How to Set Offsett for Smooth Scroll

由 …衆ロ難τιáo~ 提交于 2019-12-09 13:07:20
问题 I have implemented the CSS Tricks Smooth Page Scroll on my site and it's working pretty nicely. However, because I have a fixed nav at the top of the page, when the page scrolls to the appropriate anchor div, the top of the div disappears behind the nav. How can I offset the scroll (about 70px) so that the whole div is shown? I tried doing this: var targetOffset = $target.offset().top - 70; But that doesn't quite work. The page scrolls to the appropriate spot but then it immediately jumps

Change Android smooth scroll behaviour on click

由 爷，独闯天下 提交于 2019-12-08 12:33:04
问题 I have a ListView and with a Timer I control the scroll movement of this list by calling smoothScrollToPositionFromTop(position, offset, duration) . The ListView has a listener for OnItemClickListener . If an item is clicked while the smooth scroll is happening, the scroll stops but the onItemClick event is not triggered. In order to do so you need to click again on the item. I want to know how to override this behaviour. I mean, if I click on an item while the smooth scroll is happening ,

scrollTo after focus/onClick event works only after second click

由 若如初见. 提交于 2019-12-08 12:17:23
问题 I try to scroll to specific point when the user click on edittext, so added the following code to listen to click and focus on this edittext: et_email = (EditText) view.findViewById(R.id.editEmail); //bring to center of screen when clicked / focused et_email.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { ScrollView scrollView = (ScrollView)getView().findViewById(R.id.ScrollViewSendDetails); scrollView.smoothScrollTo(0, 500); } }); et_email

How to UITableView keep Scrolling to bottom [Auto Scrolling]?

由 十年热恋 提交于 2019-12-08 09:12:37
问题 I spend lot of time to figure out this bug. in beginning scrolling looks good but time to time scrolling increasing automatic that is make unreadable for human. how to keep scrolling same as like as beginning. var start_index = 0 var dest_index = 0 //approximately 300 var timer = Timer() var falagisTrue : Bool? override func viewWillAppear(_ animated: Bool) { super.viewWillAppear(animated) dest_index = newsViewModels.count timer = Timer.scheduledTimer(timeInterval: 0.1, target: self, selector

using jquery scroll on ie11 issues with jittery elements

由 二次信任 提交于 2019-12-07 19:46:26
问题 I just encountered a strange issue on ie11. I am trying to create a fixed element that will scroll along with window scroll. $(window).scroll(function() { var scrollY=$(this).scrollTop(); $('.myelem').css('transform', 'translateY(' + scrollY + 'px)'); }); I have also created a fiddle of this: https://jsfiddle.net/fyngwnz6/1/ (This is for replicating the issue, I know this particular case could be solved with a fixed element) The code works flawlessly with no performance issues on every

using jquery scroll on ie11 issues with jittery elements

由 折月煮酒 提交于 2019-12-06 13:43:59
I just encountered a strange issue on ie11. I am trying to create a fixed element that will scroll along with window scroll. $(window).scroll(function() { var scrollY=$(this).scrollTop(); $('.myelem').css('transform', 'translateY(' + scrollY + 'px)'); }); I have also created a fiddle of this: https://jsfiddle.net/fyngwnz6/1/ (This is for replicating the issue, I know this particular case could be solved with a fixed element) The code works flawlessly with no performance issues on every browser, except ie11. When using the scrollbar 'myelem' element scrolls with just a small jitter which

Ipad/Iphone like scrolling

由 大兔子大兔子 提交于 2019-12-05 05:03:01
Have any of you seen like a javascript library that allows fluid div scrolling. I kind of want to do something like the scroll bars in google wave...but maybe less annoying. I happen to love them but it doesn't seem like they're getting that good of a review. donohoe I believe iScroll might be of help. It provides a way to scroll content inside a fixed width/height element. You can find more information on it here: http://cubiq.org/iscroll-4 来源： https://stackoverflow.com/questions/2962082/ipad-iphone-like-scrolling

iOS UITableViewCell Optimization

由 旧巷老猫 提交于 2019-12-05 02:57:10
问题 In my app I have a UITableView that contains custom UITableViewCells. Scrolling is very sluggish and laggy, and I need to resolve this. Each cell contains 5-6 labels, a few buttons, and an image. I have a xib for the cell, where I place the buttons, labels, and image view, but I set all of the images in cellForRowAtIndexPath. To load the images I use [UIImage imageNamed:@""], which I read is better for optimization. I am also the reusing cells. I also found that even if I comment out and do

ListView scrolling using UniversalImageDownloader not smooth

由 送分小仙女□ 提交于 2019-12-04 14:27:32
问题 I am using a ListView containing images. These images are loaded from the Internet inside the adapter. Therefore I am using the UniversalImageDownloader . Unfortunately the scrolling of the ListView "lags" for a short time as soon as I scroll down where new content has to be downloaded. I acutally expected behaviour like the ListView scrolls perfectly smooth, but the loading of the Image can of course take some more time - which should not effect the smoothness of scrolling. Furthermore, as I
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