滚动到选定的表格单元格
我实现了一个 TableView 以在选择特定行时显示 PickerView。但这有时会阻止选定的单元格。所以，我希望当 pickerView 显示时我的scrollView 滚动到选定的单元格。
有没有办法获取所选行的当前位置？这样我就可以实现像
//---scroll to the current text field---
CGRect textFieldRect = [currentTextField frame];
[scrollView scrollRectToVisible:textFieldRect animated:YES];
“谢谢”这样的东西。
I implemented a TableView to show up a PickerView when a particular row is selected. But that would sometime block the selected cell. So, I want my scrollView to scroll to the selected cell when the pickerView shows up.
Is there anyway to get the current location of the selected row? Such that I can implement something like
//---scroll to the current text field---
CGRect textFieldRect = [currentTextField frame];
[scrollView scrollRectToVisible:textFieldRect animated:YES];
Thanks.
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如果你想解决pickerView或者键盘隐藏屏幕的问题，可以尝试这种方法。实现
heightForFooterInSection并设置一个高度值，tableView 将向上滚动到您指定的相同值。如果您只想让 tableView 滚动，只需实现
scrollToRowAtIndexPath:atScrollPosition:animated:Edit:
由于您使用的是
UIScrollView，您可以使用编程方式滚动到某个区域另请阅读此参考：http://www.aaron.griffith.name/ weblog/2011/02/23/scrolling-a-uiscrollview-programmatically/
If you want to solve the pickerView or the keyboard hiding the screen, you can try this approach. Implement the
heightForFooterInSectionand set a height value, and the tableView will scroll up to the same value as you specify there.If you just want the tableView to scroll , just implement the
scrollToRowAtIndexPath:atScrollPosition:animated:Edit:
Since you are using a
UIScrollView, you can programmatically scroll to a certain region usingAlso read through this reference: http://www.aaron.griffith.name/weblog/2011/02/23/scrolling-a-uiscrollview-programmatically/