选择文本字段时滚动 UITableView [英] Making a UITableView scroll when text field is selected
问题描述
经过多次反复试验,我放弃并提出问题.我见过很多人遇到类似的问题,但无法得到所有正确的答案.
After a lot of trial and error, I'm giving up and asking the question. I've seen a lot of people with similar problems but can't get all the answers to work right.
我有一个由自定义单元格组成的 UITableView
.这些单元格由 5 个彼此相邻的文本字段组成(有点像网格).
I have a UITableView
which is composed of custom cells. The cells are made of 5 text fields next to each other (sort of like a grid).
当我尝试滚动和编辑 UITableView
底部的单元格时,我无法将单元格正确放置在键盘上方.
When I try to scroll and edit the cells at the bottom of the UITableView
, I can't manage to get my cells properly positioned above the keyboard.
我已经看到很多关于改变视图大小等的答案......但到目前为止,它们都没有很好地工作.
I have seen many answers talking about changing view sizes,etc... but none of them has worked nicely so far.
有人可以通过具体的代码示例阐明执行此操作的正确"方法吗?
Could anybody clarify the "right" way to do this with a concrete code example?
推荐答案
进行滚动的函数可以简单得多:
The function that does the scrolling could be much simpler:
- (void) textFieldDidBeginEditing:(UITextField *)textField {
UITableViewCell *cell;
if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_6_1) {
// Load resources for iOS 6.1 or earlier
cell = (UITableViewCell *) textField.superview.superview;
} else {
// Load resources for iOS 7 or later
cell = (UITableViewCell *) textField.superview.superview.superview;
// TextField -> UITableVieCellContentView -> (in iOS 7!)ScrollView -> Cell!
}
[tView scrollToRowAtIndexPath:[tView indexPathForCell:cell] atScrollPosition:UITableViewScrollPositionTop animated:YES];
}
就是这样.根本没有计算.
That's it. No calculations at all.
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