-(void)initButton:(UIButton*)btn{
float spacing =3;//图片和文字的上下间距
CGSize imageSize = btn.imageView.frame.size;
CGSize titleSize = btn.titleLabel.frame.size;
CGSize textSize = [btn.titleLabel.text sizeWithAttributes:@{NSFontAttributeName : btn.titleLabel.font}];
CGSizeframeSize =CGSizeMake(ceilf(textSize.width),ceilf(textSize.height));
if(titleSize.width+0.5< frameSize.width) {
titleSize.width= frameSize.width;
}
CGFloattotalHeight = (imageSize.height+ titleSize.height+ spacing);
btn.imageEdgeInsets=UIEdgeInsetsMake(- (totalHeight - imageSize.height),0.0,0.0, - titleSize.width);
btn.titleEdgeInsets=UIEdgeInsetsMake(0, - imageSize.width, - (totalHeight - titleSize.height),0);
}
