xcode 如何从单元格中的按钮操作获取表格视图中的 indexPath？
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How to get indexPath in a tableview from a button action in a cell?
提问by Sylvain Bessot
I have a tableview with two actions in it, for the first on i use the delegate didSelectRowAtIndexPath, for the second one i would like to use an action on a button on my cell to do something else. My problem is that i don't succeed to get the indexpath ? What is the best practice to do that.
我有一个包含两个操作的 tableview，第一个我使用委托 didSelectRowAtIndexPath，第二个我想在我的单元格上的按钮上使用一个操作来做其他事情。我的问题是我没有成功获得索引路径？这样做的最佳做法是什么。
回答by EmptyStack
If you have added the button to the cell as,
如果您已将按钮添加到单元格中，
[cell.contentView addSubview:button];
then, you can get the index path as,
然后，您可以获得索引路径，
- (void)onButtonTapped:(UIButton *)button {
UITableViewCell *cell = (UITableViewCell *)button.superview.superview;
NSIndexPath *indexPath = [tableView indexPathForCell:cell];
// Go ahead
}
回答by Yogesh Kumar
I'm using this solution -- getting index path of cell using points
我正在使用这个解决方案——使用点获取单元格的索引路径
CGPoint center= [sender center];
CGPoint rootViewPoint = [[sender superview] convertPoint:center toView:_tableView1];
NSIndexPath *indexPath = [_tableView1 indexPathForRowAtPoint:rootViewPoint];
NSLog(@"%@",indexPath);
Its work perfectly
它的工作完美
回答by user2014551
here is the full code for a custom button:
这是自定义按钮的完整代码：
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"Cell";
CustomCellFilter *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (!cell) {cell = [[CustomCellFilter alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];}
//configure your cell here
cell.titleLabel.text = @"some title";
//add button
UIButton *myButton = [UIButton buttonWithType:UIButtonTypeCustom];
resetButton.frame = CGRectMake(40, 10, 18, 18);
[resetButton addTarget:self action:@selector(onButtonTapped:) forControlEvents:UIControlEventTouchUpInside];
[resetButton setImage:[UIImage imageNamed:@"someimage.png"] forState:UIControlStateNormal];
[cell.contentView addSubview:myButton];
//afterwards return the cell
return cell;
- (void)onButtonTapped:(UIButton *)button {
UITableViewCell *cell = (UITableViewCell *)button.superview.superview;
NSIndexPath *indexPath = [filterTable indexPathForCell:cell];
NSLog(@"%@", indexPath);
//use indexPath here...
}
回答by Mario Jaramillo
In case you are using a collection view, you can use Yogesh method, but change indexPathForRowAtPoint for indexPathForItemAtPoint like this:
如果您使用的是集合视图，则可以使用 Yogesh 方法，但将 indexPathForRowAtPoint 更改为 indexPathForItemAtPoint，如下所示：
CGPoint center= [sender center];
CGPoint rootViewPoint = [[sender superview] convertPoint:center toView:_tableView1];
NSIndexPath *indexPath = [_tableView1 indexPathForRowAtPoint:rootViewPoint];
NSLog(@"%@",indexPath);
回答by mahboudz
In case that your button is moved or Apple changes the view hierarchy for accessory views, this method goes up the chain to look for a UITableViewCell:
如果您的按钮被移动或 Apple 更改了附件视图的视图层次结构，此方法将向上查找 UITableViewCell：
- (void)tapAccessoryButton:(UIButton *)sender {
UIView *parentView = sender.superview;
// the loop should take care of any changes in the view heirarchy, whether from
// changes we make or apple makes.
while (![parentView.class isSubclassOfClass:UITableViewCell.class])
parentView = parentView.superview;
if ([parentView.class isSubclassOfClass:UITableViewCell.class]) {
UITableViewCell *cell = (UITableViewCell *) parentView;
NSIndexPath *indexPath = [self.tableView indexPathForCell:cell];
[self tableView:self.tableView accessoryButtonTappedForRowWithIndexPath:indexPath];
}
}
