为什么分配图像后我的UIButton更改大小和位置？ 如何保持相同？

Question

我给它分配图像后，UIButton的大小和位置会发生变化。 我不知道为什么。 有人知道吗？

我尝试将按钮重新定位到其原始位置，但是它不起作用。

CGRect buttonFrame = _subscribeButton.frame;
CGAffineTransform transform = _subscribeButton.transform;

[_subscribeButton setTitle:@"Subscribe" forState:UIControlStateNormal];

[_subscribeButton setImage:[UIImage imageNamed:@"bigButton.png"] forState:UIControlStateNormal];

[_subscribeButton setFrame:buttonFrame];
[_subscribeButton setTransform:transform];

Answer 1

我应该设置backgroundImage而不是image。 这一直是问题所在。 宽高比填充仅会影响背景图像，因为它会按框架缩放。

答案：[按钮setBackgroundImage：[UIImage imageNamed：@“ blah.png”]]；

Answer 2

change this

CGAffineTransform transform = _subscribeButton.transform;

to

CGAffineTransform transform = CGAffineTransformIdentity;

更新：

CGRect buttonFrame = _subscribeButton.frame;

CGAffineTransform transform = CGAffineTransformIdentity;

[_subscribeButton setTitle:@"Subscribe" forState:UIControlStateNormal];

[_subscribeButton setImage:[UIImage imageNamed:@"bigButton.png"] forState:UIControlStateNormal];

[_subscribeButton setContentMode:UIViewContentModeScaleToFill];

_subscribeButton.autoresizingMask = UIViewAutoresizingNone;

_subscribeButton.autoresizesSubviews = NO;



[_subscribeButton setFrame:buttonFrame];

[_subscribeButton setTransform:transform];

Answer 3

尝试这个

 CGRect buttonFrame = _subscribeButton.frame;
    CGAffineTransform transform = CGAffineTransformIdentity;

    [_subscribeButton setTitle:@"Subscribe" forState:UIControlStateNormal];

    [_subscribeButton setImage:[UIImage imageNamed:@"bigButton.png"] forState:UIControlStateNormal];

    [_subscribeButton setFrame:buttonFrame];
    [_subscribeButton setTransform:transform];