UIAlertController创建修改title与message字体和颜色以符合要求，且在子视图（如cell）中展示alert；
/**
变更佩戴的守护微章
*/
- (void)changeGuardianMicoSeal{
// //修改title
// NSMutableAttributedString *alertControllerStr = [[NSMutableAttributedString alloc] initWithString:@"物品详情"];
// [alertControllerStr addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(0, 2)];
// [alertControllerStr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:17] range:NSMakeRange(0, 2)];
// [alertController setValue:alertControllerStr forKey:@"attributedTitle"];
UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"温馨提示" message:@"确定佩戴展示我是牛泡泡的初级微章么" preferredStyle:UIAlertControllerStyleAlert];
// 2.创建并添加按钮
UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"OK Action");
}];
UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"Cancel" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"Cancel Action");
}];
[alertController addAction:okAction]; // A
[alertController addAction:cancelAction]; // B
NSMutableAttributedString *alertControllerMessageStr = [[NSMutableAttributedString alloc] initWithString:@"确定佩戴展示我是牛泡泡的初级微章么"];
[alertControllerMessageStr addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(6, 5)];
[alertController setValue:alertControllerMessageStr forKey:@"attributedMessage"];
[[self topViewController] presentViewController:alertController animated:YES completion:nil];
}
- (UIViewController *)topViewController {
UIViewController *resultVC;
resultVC = [self _topViewController:[[UIApplication sharedApplication].keyWindow rootViewController]];
while (resultVC.presentedViewController) {
resultVC = [self _topViewController:resultVC.presentedViewController];
}
return resultVC;
}
- (UIViewController *)_topViewController:(UIViewController *)vc {
if ([vc isKindOfClass:[UINavigationController class]]) {
return [self _topViewController:[(UINavigationController *)vc topViewController]];
} else if ([vc isKindOfClass:[UITabBarController class]]) {
return [self _topViewController:[(UITabBarController *)vc selectedViewController]];
} else {
return vc;
}
return nil;
}
