在Button iOS中心对齐按钮

Question

I have a button whose size may vary as per requirement. But I need the image that is set on it, to always remain at its centre.

The code I'm using right now is:

[pAddButton setContentVerticalAlignment:UIControlContentVerticalAlignmentCenter];
    [pAddButton setContentHorizontalAlignment:UIControlContentHorizontalAlignmentCenter];
    [pAddButton setContentMode:UIViewContentModeCenter];

However, when I increase the width of the button, the images stretches automatically. That is what I'm trying to prevent.

Answer 1

将此代码图像框尝试到按钮

[image drawInRect:CGRectMake((self.frame.size.width/2) - (image.size.width/2), (self.frame.size.height / 2) - (image.size.height / 2), image.size.width, image.size.height)];

Answer 2

您是否尝试过将imageView的内容模式设置为居中，例如：

pAddButton.imageView.contentMode = UIViewContentModeCenter;

Answer 3

Set the image using setImage:forState: instead of setBackgroundImage:forState: .

If that doesn't help you could use imageEdgeInsets to reduce the image's width.

Answer 4

您可以使用setBackgroundImage的setImage instesd或在按钮[button addSubView：imageView]上将图像添加为subView。

Answer 5

您是否尝试通过以下方式简单地将图像居中：

myImageView.center = pAddButton.center;

Answer 6

Try this,

CGPoint centerImageView = imageView.center;

centerImageView = pAddButton.center;

ImageView.center = centerImageView;