縮放圖像以適應UIButton

Question

我有一個UIButtons的問題。我如何縮放圖像以適合其框架？

Answer 1

只是需要了setBackgroundImage結合起來，並設置填寫

Answer 2

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