blocks|key|1464444|text|我使用它来滚动到tableView的页脚视图：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1464445|[self.tableView+scrollRectToVisible:[self.tableView+convertRect:self.tableView.tableFooterView.bounds+fromView:self.tableView.tableFooterView]+animated:YES];|code-block|syntax|javascript|1464446|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I am using this to scroll to the footer view of a tableView:

<pre><code>[self.tableView scrollRectToVisible:[self.tableView convertRect:self.tableView.tableFooterView.bounds fromView:self.tableView.tableFooterView] animated:YES];
</code></pre>

blocks|key|1464347|text|将UITableView滚动到其footerView底部的最好方法是简单地设置内容偏移量。您可以使用contentSize和当前bounds来计算底部|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1464348|这就是我的做法。|1464349|CGPoint+newContentOffset+=+CGPointMake(0,+[self.instanceOfATableView+contentSize].height+-++self.instanceOfATableView.bounds.size.height);

[self.instanceOfATableView+setContentOffset:newContentOffset+animated:YES];+|code-block|syntax|javascript|1464350|entityMap^0|1|B|1E|B|1S|6|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|W|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|X|8|@]|D|@]|E|$]]]|N|$]]

The best way to scroll a <code>UITableView</code> to the bottom of it's footerView is to simply set the content offset. You can calculate the bottom using the <code>contentSize</code> and the current <code>bounds</code>

Here is the way I do it.

<pre><code>CGPoint newContentOffset = CGPointMake(0, [self.instanceOfATableView contentSize].height - self.instanceOfATableView.bounds.size.height);

[self.instanceOfATableView setContentOffset:newContentOffset animated:YES]; 
</code></pre>

blocks|key|1464401|text|感谢iphone_developer，下面是我所做的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1464402|[tableView+scrollToRowAtIndexPath:[NSIndexPath+indexPathForRow:[tableView+numberOfRowsInSection:0]-1+inSection:0]+atScrollPosition:UITableViewScrollPositionTop+animated:YES];|code-block|syntax|javascript|1464403|然后，当我添加行时，我调用了这个函数，我的tableView的页脚视图保持可见|1464404|Swift版本：|1464405|tableView.scrollToRow(at:+IndexPath(row:+self.tblview.numberOfRows(inSection:+0)+-+1,+section:+0),+at:+.top,+animated:+true)|1464406|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|D|7|S|8|@]|9|@]|A|$E|F]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Thanks to iphone_developer here is what I did :

<pre><code>[tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:[tableView numberOfRowsInSection:0]-1 inSection:0] atScrollPosition:UITableViewScrollPositionTop animated:YES];
</code></pre>

Then while I'm adding rows, I'm calling this and my tableView's footer view keeps being visible

Swift Version:

<pre><code>tableView.scrollToRow(at: IndexPath(row: self.tblview.numberOfRows(inSection: 0) - 1, section: 0), at: .top, animated: true)
</code></pre>

blocks|key|1249755|text|这么多糟糕的答案。:-)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1249756|最好的方法：|1249757|[self.tableView+scrollRectToVisible:
+++++self.tableView.tableFooterView.frame+animated:YES
];|code-block|syntax|javascript|1249758|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

So many poor answers. :-)

The BEST way:

<pre><code>[self.tableView scrollRectToVisible:
 self.tableView.tableFooterView.frame animated:YES
];
</code></pre>

blocks|key|1249403|text|可能是这样的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1249404|[tableView+setContentOffset:CGPointMake(0,+tableView.contentSize.height)+animated:YES];|code-block|syntax|javascript|1249405|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Maybe something like:

<pre><code>[tableView setContentOffset:CGPointMake(0, tableView.contentSize.height) animated:YES];
</code></pre>

blocks|key|1464537|text|我最近的回答是给开发人员的，他们需要在键盘显示时显示页脚。正确的解决方案是考虑contentInset属性(该属性可以在显示键盘后更改)，因此非常简单：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1464538|-+(void)scrollToFooter+{
++UIEdgeInsets+tableInsets+=+self.tableView.contentInset;
++CGFloat+tableHeight+=+self.tableView.frame.size.height+-+tableInsets.bottom+-+tableInsets.top;
++CGFloat+bottom+=+CGRectGetMaxY(self.tableView.tableFooterView.frame);
++CGFloat+offset+=+bottom+-+tableHeight;
++if(offset+>+0.f)+{
++++[self.tableView+setContentOffset:CGPointMake(0,++offset)+animated:YES];
++}
}|code-block|syntax|javascript|1464539|我必须注意，在我的例子中，tableView被添加到我自己的ViewController中，并且其中一个单元具有成为first+responder的UITextField。要在键盘显示时移动显示页脚，您需要注册键盘did显示通知，并(在iOS7上)在当前运行循环结束时执行此方法，因为在这种情况下，iOS7会在我们的方法和页脚不显示后自动执行scrollToRowAtIndexPath。|1464540|-(void)registerKeyboardNotification+{
++[[NSNotificationCenter+defaultCenter]+addObserver:self
+++++++++++++++++++++++++++++++++++++++++++selector:@selector(keyboardDidShown:)
+++++++++++++++++++++++++++++++++++++++++++++++name:UIKeyboardDidShowNotification+object:nil];
}

-+(void)keyboardDidShown:(id)notification+{
++//move+to+the+end+of+run+loop
++[self+performSelector:@selector(scrollToFooter)+withObject:nil+afterDelay:.0];
}|1464541|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

My late answer is for developer, who need to show footer when the keyboard is shown.
The right solution is to consider contentInset property (which can be changed after keyboard is shown), so it's super easy:

<pre><code>- (void)scrollToFooter {
 UIEdgeInsets tableInsets = self.tableView.contentInset;
 CGFloat tableHeight = self.tableView.frame.size.height - tableInsets.bottom - tableInsets.top;
 CGFloat bottom = CGRectGetMaxY(self.tableView.tableFooterView.frame);
 CGFloat offset = bottom - tableHeight;
 if(offset &gt; 0.f) {
 [self.tableView setContentOffset:CGPointMake(0, offset) animated:YES];
 }
}
</code></pre>

I must notice, that in my case tableView was added to my own ViewController and one of cells have UITextField which become first responder. To move show footer when keyboard is shown you need to register keyboard did shown notification and (on iOS7) perform this method in the end of current run loop, coz in this case iOS7 automatically perform scrollToRowAtIndexPath after our method and footer will not be shown.

<pre><code>-(void)registerKeyboardNotification {
 [[NSNotificationCenter defaultCenter] addObserver:self
 selector:@selector(keyboardDidShown:)
 name:UIKeyboardDidShowNotification object:nil];
}

- (void)keyboardDidShown:(id)notification {
 //move to the end of run loop
 [self performSelector:@selector(scrollToFooter) withObject:nil afterDelay:.0];
}
</code></pre>

blocks|key|1249454|text|最简单的方法是在最后一节的最后一行上使用UITableViewScrollPositionTop。这对我来说效果很好。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1249455|[tableView+scrollToRowAtIndexPath:[NSIndexPath+indexPathForRow:LAST_ROW+inSection:LAST_SECTION]+atScrollPosition:UITableViewScrollPositionTop+animated:YES];|code-block|syntax|javascript|1249456|确保你的表页脚视图在底部有很好的间隔，并且它应该在视图中有很好的动画效果。|1249457|希望这能帮到你。|1249458|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

The easiest way to do this is to use UITableViewScrollPositionTop on the LAST ROW in the LAST SECTION. This works very well for me...

<pre><code>[tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:LAST_ROW inSection:LAST_SECTION] atScrollPosition:UITableViewScrollPositionTop animated:YES];
</code></pre>

Make sure your Table Footer View is well spaced out at the bottom and it should sit nicely animated inside the view...

Hope this helps...

blocks|key|1249628|text|这对我来说是件好事！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1249629|CGRect+footerBounds+=+[addCommentContainer+bounds];
CGRect+footerRectInTable+=+[tableview+convertRect:footerBounds+fromView:addCommentContainer];
[tableview+scrollRectToVisible:footerRectInTable+animated:YES];|code-block|syntax|javascript|1249630|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This good work for me!

<pre><code>CGRect footerBounds = [addCommentContainer bounds];
CGRect footerRectInTable = [tableview convertRect:footerBounds fromView:addCommentContainer];
[tableview scrollRectToVisible:footerRectInTable animated:YES];
</code></pre>

blocks|key|1249842|text|这对我在Swift+4中很有效|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1249843|func+addRow()+{
++++tableView.beginUpdates()
++++tableView.insertRows(at:+[IndexPath(row:+array.count+-+1,+section:+0)],+with:+.automatic)
++++tableView.endUpdates()

++++DispatchQueue.main.async+{
++++++++self.scrollToBottom()
++++}
}

func+scrollToBottom()+{
++++let+footerBounds+=+tableView.tableFooterView?.bounds
++++let+footerRectInTable+=+tableView.convert(footerBounds!,+from:+tableView.tableFooterView!)
++++tableView.scrollRectToVisible(footerRectInTable,+animated:+true)
}|code-block|syntax|javascript|1249844|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This works for me in Swift 4

<pre><code>func addRow() {
 tableView.beginUpdates()
 tableView.insertRows(at: [IndexPath(row: array.count - 1, section: 0)], with: .automatic)
 tableView.endUpdates()

 DispatchQueue.main.async {
 self.scrollToBottom()
 }
}

func scrollToBottom() {
 let footerBounds = tableView.tableFooterView?.bounds
 let footerRectInTable = tableView.convert(footerBounds!, from: tableView.tableFooterView!)
 tableView.scrollRectToVisible(footerRectInTable, animated: true)
}
</code></pre>

blocks|key|1249530|text|我使用的是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1249531|-+(void)scrollToBottom{
+++[self.myTable+scrollToRowAtIndexPath:[NSIndexPath+indexPathForRow:[self.fetchedResultsController.fetchedObjects+count]+-1+inSection:0]+atScrollPosition:UITableViewScrollPositionTop+animated:YES];|code-block|syntax|javascript|1249532|}|1249533|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I'm using this:

<pre><code>- (void)scrollToBottom{
 [self.myTable scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:[self.fetchedResultsController.fetchedObjects count] -1 inSection:0] atScrollPosition:UITableViewScrollPositionTop animated:YES];
</code></pre>

}

blocks|key|1464631|text|这项工作对我来说：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1464632|-+(void)tableViewScrollToBottomAnimated:(BOOL)animated+{
++++NSInteger+numberOfRows+=+[self.tableView+numberOfRowsInSection:0];
++++if+(numberOfRows)+{
++++++++if+(self.tableView.tableFooterView)+{
++++++++++++[self.tableView+scrollRectToVisible:
+++++++++++++self.tableView.tableFooterView.frame+animated:YES
+++++++++++++];
++++++++}+else+{
++++++++++++[self.tableView+scrollToRowAtIndexPath:
+++++++++++++[NSIndexPath+indexPathForRow:numberOfRows-1+inSection:0]
++++++++++++++++++++++++++++++++++atScrollPosition:UITableViewScrollPositionBottom
++++++++++++++++++++++++++++++++++++++++++animated:animated
+++++++++++++];
++++++++}
++++}
}|code-block|syntax|javascript|1464633|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This work to me:

<pre><code>- (void)tableViewScrollToBottomAnimated:(BOOL)animated {
 NSInteger numberOfRows = [self.tableView numberOfRowsInSection:0];
 if (numberOfRows) {
 if (self.tableView.tableFooterView) {
 [self.tableView scrollRectToVisible:
 self.tableView.tableFooterView.frame animated:YES
 ];
 } else {
 [self.tableView scrollToRowAtIndexPath:
 [NSIndexPath indexPathForRow:numberOfRows-1 inSection:0]
 atScrollPosition:UITableViewScrollPositionBottom
 animated:animated
 ];
 }
 }
}
</code></pre>

blocks|key|1464196|text|我还没有试过，但是当你滚动到最后一个row%2B1时会发生什么呢？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1464197|另一个想法是总是在末尾添加一个虚拟条目，并使其具有不同的外观，以便它被视为页脚。然后，您可以随时滚动到该位置。|1464198|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I haven't tried, but what happens when you scroll to the last row+1?

Another idea would be to always add a dummy entry at the end and make it have a different look so it's seen as a footer. Then you can always scroll to that.

I have a UITableView whose contents are dynamically changing, like a FIFO stack. Cells are added to the bottom and removed from the top.

This works beautifully, and I can scroll to the indexPath so that the newest message always scrolls down to the bottom (Like a chat application).

Now.. I want to add a footer to that table section. Instead of using

SrollToRowAtIndexPath

I would like to be able to scroll to the tableFooterView.

Any ideas how I can do that would be appreciated.

How to scroll a UITableView to the tableFooterView

Swift

我有一个UITableView，它的内容是动态变化的，就像一个先进先出堆栈。单元格将添加到底部，并从顶部删除。这非常好用，我可以滚动到indexPath，这样最新的消息总是向下滚动到底部(就像聊天应用程序一样)。现在.。我想在该表部分添加一个页脚。不是使用SrollToRowAtIndexPath我希望能够滚动到tableFooterView。任何想法，我可以做到这一点，将不胜感激。

问如何将UITableView滚动到tableFooterView
EN

回答 12

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何将UITableView滚动到tableFooterViewEN

回答 12

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何将UITableView滚动到tableFooterView
EN