Question

我使用循环将多个视图添加到视图中。

float contactsContainerX = 6.0f;

UIView *contactsContainer=[[UIView alloc] initWithFrame:CGRectMake(0.0f,4.0f,110.0f,22.0f)];
            contactsContainer.backgroundColor=[UIColor  colorWithRed:213.0f/255.0f green:213.0f/255.0f blue:213.0f/255.0f alpha:1.0f];

UIButton *closeButton = [[UIButton alloc] initWithFrame:CGRectMake(90.0f, 2.0f, 18.0f, 18.0f)];
closeButton.backgroundColor = [UIColor yellowColor];

[closeButton addTarget:self action:@selector(removeFavouriteContact:) forControlEvents:UIControlEventTouchUpInside];
[contactsContainer addSubview:closeButton];

for(int x=0; x<3;x++)
{
   contactsContainer.frame = CGRectMake(contactsContainerX, contactsContainer.frame.origin.y, contactsContainer.frame.size.width, contactsContainer.frame.size.height);
   [self.contactsViewSuperContainers addSubview:contactsContainer];
    contactsContainerX = contactsContainer.frame.origin.x + contactsContainer.frame.size.width+6.0f;
    self.contactsScroller.contentSize =CGSizeMake(contactsContainerX,self.contactsViewSuperContainers.frame.size.height);
}

现在每当我点击按钮。该操作应该删除我点击的特定子视图。我的意思是什么是代码？请帮帮我。

-(void) removeFavouriteContact: (UIButton *) sender
{

    for(UIView *subview in self.contactsScroller.subviews)
        if (self.contactsScroller.subviews) 
        {
            //<#statements#>
            //[self.view removeFromSuperview];

        }

}

Answer 1

考虑到您的Button被直接添加到您正在循环添加的View，您可以使用

轻松访问您的SuperView行动

-(void) removeFavouriteContact :(id)sender {
    [[sender superview] removeFromSuperView];
}

以上代码仅在您的按钮被直接添加到视图中时才有效，如果没有检查添加它的按钮级别，则在深层次中您只需追加superview并获得如下所示的精确超级视图

[[[[sender superview] superview] superview] removeFromSuperView];

希望它有所帮助。

干杯。

Answer 2

使用tag和viewWithTag属性。为tag＆amp;组view设置button view并使用tag获取-(void) removeFavouriteContact :(id)sender { NSInteger tag = sender.tag; UIView *view = [contactsContainer viewWithTag:tag]; [view removeFromSuperView]; }，然后将其删除。

{{1}}

Answer 3

只使用一行

[[someUIView subviews] makeObjectsPerformSelector：@selector（removeFromSuperview）];

如何从iview中具有多个子视图的superview中删除特定子视图

3 个答案: