UIButton 是否有等效的填充,就像在 CSS 中一样?
我似乎对小按钮有疑问,所以我想扩大按钮的大小,以便于点击。
我围绕代码做了一个工作来调整 UIButton 的大小并让内容保持原样:
- (void)adjustButtonView:(UIButton *)button toSize:(CGSize)size
{
CGRect previousFrame = button.frame;
CGRect newFrame = button.frame;
newFrame.size = size;
CGFloat adjustX = (size.width - previousFrame.size.width)/2;
CGFloat adjustY = (size.height - previousFrame.size.height)/2;
newFrame.origin.x = previousFrame.origin.x - adjustX;
newFrame.origin.y = previousFrame.origin.y - adjustY;
button.frame = newFrame;
UIEdgeInsets edgeInsets = UIEdgeInsetsMake(adjustY, adjustX, adjustY, adjustX);
button.contentEdgeInsets = edgeInsets;
}
我只是想知道是否有更简单的方法来扩展 UIButton。
最佳答案
我认为没有比您所做的更简单的方法了。但是我们可以通过将方法移至 UIButton 类别来改进您的代码。
UIButton+Resize.h
@interface UIButton (Resize)
- (void)adjustToSize:(CGSize)size;
@end
UIButton+Resize.m
@implementation UIButton (Resize)
- (void)adjustToSize:(CGSize)size
{
CGRect previousFrame = self.frame;
CGRect newFrame = self.frame;
newFrame.size = size;
CGFloat adjustX = (size.width - previousFrame.size.width)/2;
CGFloat adjustY = (size.height - previousFrame.size.height)/2;
newFrame.origin.x = previousFrame.origin.x - adjustX;
newFrame.origin.y = previousFrame.origin.y - adjustY;
self.frame = newFrame;
UIEdgeInsets edgeInsets = UIEdgeInsetsMake(adjustY, adjustX, adjustY, adjustX);
self.contentEdgeInsets = edgeInsets;
}
@end
关于ios - UIButton 填充,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/20237535/