如何使 UIBarButtonItem 不是 scaleToFit？

Question

我正在创建一个带有自定义图像的 UIBarButtonItem：

UIButton *tempSpeedButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, buttonWidth, buttonHeight)];
        UIImage *speedImage = [[UIImage imageNamed:@"eye"] imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
        [tempSpeedButton setBackgroundImage:speedImage forState:UIControlStateNormal];
        [tempSpeedButton addTarget:self action:@selector(onSpeed) forControlEvents:UIControlEventTouchUpInside];
        tempSpeedButton.contentMode = UIViewContentModeScaleAspectFit;
        UIBarButtonItem* speedButton = [[UIBarButtonItem alloc] initWithCustomView:tempSpeedButton];

图片看起来被拉长了。我怎样才能让它正常适应？

谢谢！

Answer 1

我所要做的就是添加这个：

[tempSpeedButton sizeToFit];

如何使 UIBarButtonItem 不是 scaleToFit？

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