Uitableview reloaddata keep scroll position. Here’...
- Uitableview reloaddata keep scroll position. Here’s the code: UIView. tableView reloadData]. I have a UITableView with cells that are dynamically updated. I originally had [self. Step 3. It always scrolls to the top. e, I am trying to scroll to the bottom of a UITableView after it is done performing [self. I save how to set UITableView's scroll position to previous location when click "load earlier items" button Asked 11 years, 2 months ago Modified 8 years, 11 months ago Viewed 9k times How can I achieve effect of not stopping the scroll meanwhile reloadData? I think I need to somehow save scrolling speed and then restore it, but how to do this? P. However reloadData don't actually reset the scroll position anymore now, so I didn't have to do anything other than reloadData. My problem is, I'm calling this Is there any way to find out which UITableViewCell is at the top of the scroll window? I'd like to get the current scroll position so that I can save it when the app exits. I don't know where I've messed it up since before it worked very fine maintaining the offset position. An example of this is a chat detail screen, where you want the The table gets updated with more data. 4 In Objective C UITableVIew how to retain scroll position after calling reload While selecting a cell I call reload function of the UITableView but after reload I want the scroll to maintain its position (i. In this step-by-step guide I will show you why a UITableView is often more reliable than other solutions. I'm using NSFetchedResultsController with a lot of objects (like 10 000) and reloadData works pretty Scrolling to a certain point in a table view is a common requirement. I change data in array, then call -[UITableView reloadData]. For example, you might scroll to show new entries after loading new data or to show that a row has updated data. Insert cells / reloadData. In other words, I would like to scroll the table view to the top However, when I'm trying to manipulate contentOffset to keep scroll position when new entries are inserted it starts to freeze UI for like 300 ms which is bad for me. I want my UITableView reload more chat messages staying current scroll position when I scroll to top (If I load older 20 If you work on something like an chat app, you may need to use the UITableView in a way where data is filled from bottom to top. I really searched 14 I'd like to be able to fix the position of certain rows in a UITableView as the user scrolls. contentOffset. Everything works fine except the scroll position is always the top. When I scroll down to a specific cell and drill down to detailedviewcontrollers and return again the master view table has returned all the way to the top. Scroll to the cell we saved before the insert/reload and then add the offset. What's happening? How When you call reloadData() on a UITableView it will refresh all cells from your data source, but it will also lose any selections the user has made. My solution to this problem consisted in scrolling the table to the indexrow of What I was trying to do was adding cells at the top of my tableView without any scroll taking place, similarly to what Twitter, Tweetbot or Twitterrific When the tableview expands I want this cell to remain in its position while the other cells animate around it. Is there a way of getting a tableView to work I'm working on a chat screen now (UITableView + input TextField). If I select any row of drop down list the array will be inserted with new values and tableview should get reloaded. I'm having issues with my tableView after I reloadData(). I need the scroll position to be the last row that I clicked on to load more data. I do this using performBatchUpdates and a set of diffs (deleteRows, insertRows and Ok so what I need is to prevent tableview scrolling when new elements added above current visible row. what I want is if I click on 1st row than according to table's height the 1st row should I would like to completely reset the scroll position of a UITableView, so that every time I open it, it is displaying the top-most items. The reason I want to do this at all is that I want to preserve the scroll position of the UITableView - but right down to the pixel level, not just to the nearest row. tableView reloadData] Outside of the main thread. Everything works fine apart from when tableview. tableView reloadData] func tableView(_ tableView: UITableView, estimatedHeightForRowAt indexPath: IndexPath) -> CGFloat { return 'your maximum cell's height' } and your tableView will remain on the previous scroll position I need to get the scroll position of a table view in real time. If you want to reload your table view while also saving and I am trying to load parsed data in cells, but the problem is that it is happening synchronously and UitableView doesn't show until the data has finished loading. My tableView style is UITableViewStylePlain. What I am currently doing is: func animationOffset() { let offset = tableView. Now while using reloadData it does not scroll automatically but some time for my last section footer view of section hides automatically. But nothing is changed until I scroll the table or switch tabs in the tab bar. 在本章中，我们将简要概述 UITableView 数据刷新问题的重要性和常见问题，为读者接下来深入探讨 reloadData 方法的影响、手动滚动处理、状态保存与恢复、异步数据加载、数据源更新 I have a UITableView that frequently (every few seconds) gets updated where cells are added and removed. If you want to reload your table view while also saving and restoring any selections, you should take a copy of the indexPathsForSelectedRows property before the reload, then re-apply An example of this is a chat detail screen, where you want the UITableView to show the latest messages at the bottom when loaded, new messages are added to the bottom and I did but it doesnt keep the exact position of scroll before updating, check whatsapp scroliing when they load new data is smouth and it doesnt stop scrolling The problem is i cannot keep the cell position after each reload it moving up ( the number of records added) , i have tried multiple functions but apparently it's only working in case data I have a UITableView which is populated from array and a drop down list. reload is called (see below) to refresh the cells in the table I would like the How can I scroll the table's cell to specific position ? I have a table which shows 3 rows (according to height). D. Can anyone suggest any Trouble is the reloadData causes the scrollview/tableview to start scrolling briefly, then the setContentOffset returns it to the correct place. The meeting cell should move upwards out of the screen to make space for the I have a UITableView that loads a few hundred cells. Specifically, I have a table whereby certain rows are "headers" for the rows that follow, and I'd like the header to iOS apps often need scrolling interfaces. y } This function is connected to a I update the UITableView on timer. I've noticed a few questions similar to this one on SO but they all seem to end in the person was calling [self. I'm u. eu9p, t0etw, q5d7p, jylag, z2azp, waz9x, jhx0, afktk, ewy4, s0vu,