缩放图像以适合UIButton

Question

我对UIButton有疑问。如何缩放图像以适合其框架？

Answer 1

UIButton *Btn = [UIButton buttonWithType:UIButtonTypeCustom];
    Btn.frame = //set frame using CGRectMake(x,y,width,height);     
    [Btn setBackgroundImage:[UIImage imageNamed:@"image name here"] forState:UIControlStateNormal];

Answer 2

只需要组合setbackgroundimage并设置为填充