UIButton 设置图片文字垂直居中排列

#pragma mark 按钮图片文字垂直居中排列
-(void)setButtonContentCenter:(UIButton *)button
{
CGSize imgViewSize,titleSize,btnSize;
UIEdgeInsets imageViewEdge,titleEdge;
CGFloat heightSpace = 10.0f;

//设置按钮内边距
imgViewSize = button.imageView.bounds.size;
titleSize = button.titleLabel.bounds.size;
btnSize = button.bounds.size;

imageViewEdge = UIEdgeInsetsMake(heightSpace,0.0, btnSize.height -imgViewSize.height - heightSpace, - titleSize.width);
[button setImageEdgeInsets:imageViewEdge];
titleEdge = UIEdgeInsetsMake(imgViewSize.height +heightSpace, - imgViewSize.width, 0.0, 0.0);
[button setTitleEdgeInsets:titleEdge];
}

[Btn setImage:[UIImage imageNamed:@"test.png"] forState:UIControlStateNormal];
[Btn setTitle:@"测试" forState:UIControlStateNormal];
[Btn setTitleColor:[UIColor lightGrayColor] forState:UIControlStateNormal];
[self setButtonContentCenter:Btn];