ios - 如何更改 objective-c 中的字体样式和颜色或操作表？

Question

我有一个操作表“selectedActionSheet”。我使用 actionsheet

创建了一个 alertcontroller

UIAlertController *alertController = [selectedActionSheet valueForKey:@"_alertController"];    

现在，我按如下方式更改色调颜色:

if ([alertController isKindOfClass:[UIAlertController class]])
{
   alertController.view.tintColor = [UIColor colorWithRed:0.0/255.0 green:99.0/255.0 blue:65.0/255.0 alpha:1.0];
}    

这会改变色调的颜色，但是当我单击操作表时，我再次看到默认的蓝色。有人可以帮我解决这个问题吗？我是 Objective c 的新手。

Answer 1

只需在 presentViewController 之后设置 alertController tintColor 即

[self presentViewController:alertController animated:YES completion:nil];

alertController.view.tintColor = [UIColor colorWithRed:0.0/255.0 green:99.0/255.0 blue:65.0/255.0 alpha:1.0];

这将更改默认值和突出显示的颜色。希望这能解决您的问题。

如果你只是想呈现 actionSheet，那么请尝试下面的代码-

UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"Hello Dear" message:@"I'm an actionSheet!" preferredStyle:UIAlertControllerStyleActionSheet];


UIAlertAction *ok = [UIAlertAction actionWithTitle:@"OK"
                                                 style:UIAlertActionStyleDefault
                                               handler:^(UIAlertAction *action){
                                                   //add code to make something happen once tapped
                                               }];

[alertController addAction: ok];

UIAlertAction *Cancel = [UIAlertAction actionWithTitle:@"Cancel"
                                             style:UIAlertActionStyleDestructive
                                           handler:^(UIAlertAction *action){
                                               //add code to make something happen once tapped
                                           }];

[alertController addAction: Cancel];

[self presentViewController:alertController animated:YES completion:nil];

alertController.view.tintColor = [UIColor colorWithRed:0.0/255.0 green:99.0/255.0 blue:65.0/255.0 alpha:1.0];

actionSheet 看起来像这样-