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问题类似于iOS 8 UIActivityViewController和UIAlertController按钮文本颜色使用窗口的tintColor但在iOS 9中.

我有一个UIAlertController,即使我试图设置,解除按钮也会保持白色

[[UIView appearanceWhenContainedIn:[UIAlertController class], nil] setTintColor:[UIColor blackColor]];

UIAlertController *strongController = [UIAlertController alertControllerWithTitle:title
                                                             message:message
                                                      preferredStyle:preferredStyle];
strongController.view.tintColor = [UIColor black];