UIAabel在UIActivityViewController中的UIAppearance

Question

我有这个代码,UILabel当它们出现在UIAlertControllers中时会改变s 的外观:

UILabel *appearanceLabel = [UILabel appearanceWhenContainedInInstancesOfClasses:@[[UIAlertController class]]];
    [appearanceLabel setAppearanceFont:kFontRegular(18)];

但这也会影响出现在UIActivityViewControllers中的UILabels .

如何排除UILabels UIActivityViewController？

Answer 1

根据您的情况,您可以将自己的UIAlertController子类化并使用,而不是尝试设置/取消设置外观

UILabel *appearanceLabel = [UILabel appearanceWhenContainedInInstancesOfClasses:@[[MyAlertController class]]];
    [appearanceLabel setAppearanceFont:kFontRegular(18)];

然后当操作表打开时,它将不是您的子类,因此该规则将不适用.