Question

我正在从图像中创建一个新帧，但是当新帧打开时，它就在屏幕上的其他所有内容之后。

有没有办法把它带到前线？

代码：

if ([touch view] == _imageOne)
{
    CGRect newFrame = _imageOne.frame;
    newFrame.size.width -= 280;
    newFrame.size.height -= 280;
    newFrame.origin.x += 3.2;
    newFrame.origin.y -= 100;
    _imageOne.frame = newFrame;
}
else if ([touch view] == _imageTwo)
{
    CGRect newFrame = _imageTwo.frame;
    newFrame.size.width -= 280;
    newFrame.size.height -= 280;
    newFrame.origin.x += 95;
    newFrame.origin.y -= 100;
    _imageTwo.frame = newFrame;
}

我尝试添加此

[_imageOne.superview bringSubviewToFront:_imageOne];

之后

_imageOne.frame = newFrame;

但这会使图像因某种原因而消失。感谢

Answer 1

您可以将图像放在前面，如下所示：

-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
   UITouch *touch = [touches anyObject];
   if ([touch view] == _imageOne)
   {
     CGRect newFrame = _imageOne.frame;
     newFrame.size.width += 280;
     newFrame.size.height += 280;
     newFrame.origin.x -= 3.2;
     newFrame.origin.y += 100;
     _imageOne.frame = newFrame;
     [_imageOne.superview bringSubviewToFront:_imageOne];
   }

Answer 2

我不确定你究竟需要什么，但为了将子视图放在前面（在自定义UIView类中）：

UIImageView * imgView = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"yourimage.png"]];
[self.superview bringSubviewToFront:imgView];

重新排序屏幕上的项目，将框架放在前面

2 个答案: