是否可以编辑UIAlertAction标题字体大小和样式？

Question

现在iOS8上的过时UIActionsheet和UIAlertview定制上iOS7工作不发生作用了.到目前为止,我所知道的唯一定制是色彩.我需要的是改变标题的字体大小和样式,我没有找到任何方式使用新的UIAlertAction.

已经提到了这个,但我仍然希望有一种方法可以至少改变标题大小和字体.

为您提供我的一些代码 UIAlertAction

UIAlertController * alertActionSheetController = [UIAlertController alertControllerWithTitle:@"Settings"
                                                                              message:@""
                                                                       preferredStyle:UIAlertControllerStyleActionSheet];
    UIAlertAction * aboutTheAppAction = [UIAlertAction actionWithTitle:@"About the App"
                                                                 style:UIAlertActionStyleDefault
                                                               handler:^(UIAlertAction * action){
                                                                   NSLog(@"About the app");
                                                                   [self openAbout];

                                                               }];


[alertActionSheetController addAction:aboutTheAppAction];
[self presentViewController:alertActionSheetController animated:YES completion:nil];

Answer 1

您可以更改UIAlertAction的字体和颜色.首先,您需要添加UILabel类别

@interface UILabel (FontAppearance)
@property (nonatomic, copy) UIFont * appearanceFont UI_APPEARANCE_SELECTOR;
@end

@implementation UILabel (FontAppearance)

-(void)setAppearanceFont:(UIFont *)font {
    if (font)
        [self setFont:font];
}

-(UIFont *)appearanceFont {
    return self.font;
}

@end

类别文件也在以下网址上传:https: //www.dropbox.com/s/em91fh00fv3ut4h/Archive.zip？dl = 0

导入该文件后您需要调用以下函数.

UILabel * appearanceLabel = [UILabel appearanceWhenContainedIn:UIAlertController.class, nil];
[appearanceLabel setAppearanceFont:yourDesireFont]]; 

上面的代码是在颜色和字体上测试的.这只适用于iOS8或更高版本.