UIButton图像调整大小/缩放以适应 [英] UIButton image resize/scale to fit

问题描述

我有一个非常有线的问题，我不知道如何解决它。我正在设置UIButtons框架的动画，当我为它设置动画时，我希望按钮中的图像缩放到与按钮相同的大小。它可以在我的iPhone模拟器上无需任何操作。但是当我在iPad模拟器上运行它时，它不会改变图像大小。我在几个地方添加了[[gissaImg1 imageView] setContentMode：UIViewContentModeScaleToFill]代码，但它没有帮助。

I have a really wired problem and i don’t know how to solve it. I’m animating a UIButtons frame and when i animate it, i want the image in the button to scale to the same size as the button. It works without doing anything on my iPhone simulator. But when i run it on the iPad simulator it won’t change the image size. I have added [[gissaImg1 imageView] setContentMode:UIViewContentModeScaleToFill] code on several places but it did not help.

有谁知道什么是错的以及如何解决这个问题？

Do anyone know what is wrong and how to fix this problem?

//Code to set the image
UIImage *image = [UIImage imageNamed:[NSString stringWithFormat:@"%@_small", 
                                              [[itemsForRound objectAtIndex:[[guessItems objectAtIndex:0] intValue]] valueForKey:@"Name"]]];

[self.gissaImg1 setImage:image forState:UIControlStateNormal];
[self.gissaImg1 setImage:image forState:UIControlStateHighlighted];

//Code to animate button
CGRect animateToSpot = (isIphone) ? CGRectMake(0, 0, 480, 320) : CGRectMake(0, 0, 1024, 768);
    [self performSelector:@selector(PlayCorrectSound:) withObject:nil afterDelay:1];
    [[gissaImg1 imageView] setContentMode:UIViewContentModeScaleToFill];
    [UIView animateWithDuration:1.5 delay:0 options:(UIViewAnimationOptionAllowUserInteraction | UIViewAnimationCurveLinear) animations:^{
        switch (index) {
            case 0:
                [[gissaImg1 imageView] setContentMode:UIViewContentModeScaleToFill];
                [self.gissaImg1 setFrame:animateToSpot];
                [self.view bringSubviewToFront:gissaImg1];
                break;
.......

推荐答案

尝试 setBackgroundImage 而不是 setImage ，并对图像不执行任何操作。 （resize或setContentMode）
希望这有助于

Try setBackgroundImage instead of setImage, and do nothing to the image. (resize or setContentMode) Hope this helps

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