iOS UIActionSheet 回调适用于模拟器，但不适用于手机

Posted 2023-03-16

【中文标题】iOS UIActionSheet 回调适用于模拟器，但不适用于手机

【英文标题】：iOS UIActionSheet callback works in simulator but not on phone

【发布时间】：2014-09-17 02:07:27

【问题描述】：

我有一个操作表，当在模拟器中运行时成功单击其中一个选项时调用 clickedButtonAtIndex，但在 iPhone（Xcode 6 中为 5s）上进行测试时，它不会到达回调。

标题...

@protocol SGETriggerToolBarDelegate
-(void)showCustomEditView;
@end

@interface SGETriggerToolBarController : UIViewController <UIActionSheetDelegate>

@property (nonatomic, assign) id <SGETriggerToolBarDelegate> delegate;
@property (nonatomic, strong) UIToolbar *toolbar;

在实施中...

// in xController.m
// ...
- (void)triggerButtonHandler

    UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:@"Select an event type"
                                                             delegate:self
                                                    cancelButtonTitle:nil
                                               destructiveButtonTitle:nil
                                                    otherButtonTitles:nil];
    for (SGETrigger *trigger in triggers)  
        [actionSheet addButtonWithTitle:trigger.name];
    

    [actionSheet addButtonWithTitle:@"Cancel"];
    actionSheet.cancelButtonIndex = triggers.count;

    [actionSheet showFromToolbar:self.toolbar];


- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex

    if (buttonIndex == [actionSheet cancelButtonIndex]) 
        return;
     else 
        selectedTrigger = triggers[buttonIndex];
        triggerButton.title = [NSString stringWithFormat:@"• %@ •", selectedTrigger.name];
        [delegate showCustomEditView];
    

// ...

【问题讨论】：

仅供参考 - 合并两个“取消”按钮行：actionSheet.cancelButtonIndex = [actionSheet addButtonWithTitle:@"Cancel"];。

【参考方案1】：

如果你得到“Prepresenting action sheet by its superview. Some controls may not respond to touches”

更换...

[actionSheet showFromToolbar:self.toolbar];

与

[actionSheet showInView:[UIApplication sharedApplication].keyWindow];

为我解决了这个问题。