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- (void)centerImageAndTitle:(float)spacing
{
// get the size of the elements here for readability
CGSize imageSize = self.imageBtn.imageView.frame.size;
CGSize titleSize = self.imageBtn.titleLabel.frame.size;
// get the height they will take up as a unit
CGFloat totalHeight = (imageSize.height + titleSize.height + spacing);
// raise the image and push it right to center it
self.imageBtn.imageEdgeInsets = UIEdgeInsetsMake(
- (totalHeight - imageSize.height), 0.0, 0.0, - titleSize.width);
// lower the text and push it left to center it
self.imageBtn.titleEdgeInsets = UIEdgeInsetsMake(
0.0, - imageSize.width, - (totalHeight - titleSize.height), 0.0);
}
- (void)centerImageAndTitle
{
const int DEFAULT_SPACING = 6.0f;
[self centerImageAndTitle:DEFAULT_SPACING];
}
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原文地址：http://www.cnblogs.com/jiackyan/p/4431328.html
