我有一些代码，它只是在单击按钮时显示 UIActionSheet。
但是当我在 iPad 中使用 XCode5.1 + iOS8beta 构建它时它会崩溃。
下面是我用来显示 UIActionSheet 的代码。
UIActionSheet *tmpActionSheet = [[UIActionSheet alloc] initWithTitle:nil
delegate:self
cancelButtonTitle:@"Cancel"
destructiveButtonTitle:nil
otherButtonTitles:
@"Ok",
nil];
[tmpActionSheet showInView:self.view];
笔记:
- 完美兼容 XCode6beta + iOS8beta(iPhone/iPad)
- 完美兼容 XCode5.1 + iOS8beta(仅限 iPhone)
出现异常时的日志如下。
2014-06-23 15:54:04.860 ActionSheetDemo[680:191598] Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. (Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)
(
"<NSLayoutConstraint:0x14e60ef0 V:|-(0)-[UIView:0x14d419a0] (Names: '|':UIView:0x14d3a8b0 )>",
"<NSLayoutConstraint:0x14e60880 _UIDimmingKnockoutBackdropView:0x14d2ca80.top == UIView:0x14d419a0.top>",
"<NSLayoutConstraint:0x14e61600 V:[_UIDimmingKnockoutBackdropView:0x14d2ca80(>=44)]>",
"<NSLayoutConstraint:0x14e66240 _UIDimmingKnockoutBackdropView:0x14d2ca80.bottom ==>"
)
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x14e66240 _UIDimmingKnockoutBackdropView:0x14d2ca80.bottom ==>
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful.
2014-06-23 15:54:04.872 ActionSheetDemo[680:191598] Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. (Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)
(
"<NSLayoutConstraint:0x14e60ef0 V:|-(0)-[UIView:0x14d419a0] (Names: '|':UIView:0x14d3a8b0 )>",
"<NSLayoutConstraint:0x14e60880 _UIDimmingKnockoutBackdropView:0x14d2ca80.top == UIView:0x14d419a0.top>",
"<NSLayoutConstraint:0x14e61600 V:[_UIDimmingKnockoutBackdropView:0x14d2ca80(>=44)]>",
"<NSLayoutConstraint:0x14d25f80 _UIDimmingKnockoutBackdropView:0x14d2ca80.bottom ==>"
)
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x14d25f80 _UIDimmingKnockoutBackdropView:0x14d2ca80.bottom ==>
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful.
2014-06-23 15:54:04.878 ActionSheetDemo[680:191598] Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. (Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)
(
"<NSLayoutConstraint:0x14e60ef0 V:|-(0)-[UIView:0x14d419a0] (Names: '|':UIView:0x14d3a8b0 )>",
"<NSLayoutConstraint:0x14e60880 _UIDimmingKnockoutBackdropView:0x14d2ca80.top == UIView:0x14d419a0.top>",
"<NSLayoutConstraint:0x14e61600 V:[_UIDimmingKnockoutBackdropView:0x14d2ca80(>=44)]>",
"<NSLayoutConstraint:0x14e67740 _UIDimmingKnockoutBackdropView:0x14d2ca80.bottom ==>"
)
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x14e67740 _UIDimmingKnockoutBackdropView:0x14d2ca80.bottom ==>
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful.
2014-06-23 15:54:04.885 ActionSheetDemo[680:191598] Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. (Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)
(
"<NSLayoutConstraint:0x14e60ef0 V:|-(0)-[UIView:0x14d419a0] (Names: '|':UIView:0x14d3a8b0 )>",
"<NSLayoutConstraint:0x14e60880 _UIDimmingKnockoutBackdropView:0x14d2ca80.top == UIView:0x14d419a0.top>",
"<NSLayoutConstraint:0x14e61600 V:[_UIDimmingKnockoutBackdropView:0x14d2ca80(>=44)]>",
"<NSLayoutConstraint:0x14d38a30 _UIDimmingKnockoutBackdropView:0x14d2ca80.bottom ==>"
)
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x14d38a30 _UIDimmingKnockoutBackdropView:0x14d2ca80.bottom ==>
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful.
2014-06-23 15:54:04.892 ActionSheetDemo[680:191598] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Application tried to present modally an active controller <_UIAlertShimPresentingViewController: 0x14d450c0>.'
*** First throw call stack:
(0x24702c2f 0x315cdd1f 0x27ffa6e7 0x27df9799 0x2838f3bd 0x2838e94d 0x6bfdd 0x27d4a6c7 0x27d4a669 0x27d34a4d 0x27d4a099 0x27d49d73 0x27d42ff1 0x27d198b1 0x27f8f13d 0x27d183c1 0x246ca597 0x246c99ab 0x246c8029 0x246145a1 0x246143b3 0x2b8cc1b9 0x27d78c41 0x6c239 0x31b67aaf)
libc++abi.dylib: terminating with uncaught exception of type NSException
问题 :
1] 为什么我的应用程序崩溃了？
2] 是 iOS8beta 错误吗？
补丁直到苹果解决这个问题
为
Objective-C categor 类创建 UIActionSheet代码:
#define SYSTEM_VERSION_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedSame)
#define SYSTEM_VERSION_GREATER_THAN(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedDescending)
#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedDescending)
@implementation UIActionSheet (simplyShowInViewAddition)
- (void) simplyShowInView:(UIView *) view
{
if(SYSTEM_VERSION_LESS_THAN(@"8.0"))
{
[self showInView:view];
}
else
{
// "Translating" UIActionSheet to UIAlertController for better compatibility with iOS 8
UIAlertController *alert = [UIAlertController alertControllerWithTitle:nil message:self.title preferredStyle:UIAlertControllerStyleActionSheet];
int nactions = [self numberOfButtons];
int i=0;
while(i<nactions)
{
NSString *button_title=[self buttonTitleAtIndex:i];
UIAlertActionStyle style=UIAlertActionStyleDefault;
if(i==[self cancelButtonIndex])
{
style = UIAlertActionStyleCancel;
}
else if(i==[self destructiveButtonIndex])
{
style = UIAlertActionStyleDestructive;
}
UIAlertAction *newAction = [UIAlertAction actionWithTitle:button_title style:style handler:^(UIAlertAction *action) {
NSLog(@"clicked action %d",i);
[self.delegate actionSheet:self clickedButtonAtIndex:i];
}];
[alert addAction:newAction];
i++;
}
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
{
[alert setModalPresentationStyle:UIModalPresentationPopover];
UIPopoverPresentationController *popPresenter = [alert
popoverPresentationController];
popPresenter.sourceView = view;
popPresenter.sourceRect = CGRectMake(view.frame.size.width/2-1, 0.45*view.frame.size.height, 2, 1);
popPresenter.permittedArrowDirections = 0;
}
UIViewController *sourceViewController;
if(self.delegate!=nil && [self.delegate respondsToSelector:@selector(presentViewController:animated:completion:)])
{
NSLog(@"presenting UIAlertController on source view controller");
sourceViewController=(UIViewController *)(self.delegate);
}
else
{
// When the actionsheet delegate is not a UIViewController
NSLog(@"presenting UIAlertController on displayed view controller");
sourceViewController = /* Set up a method here to obtain the view controller where you want to display it */
}
[sourceViewController presentViewController:alert animated:YES completion:nil];
}
}
引用 link
最佳答案
我也有同样的问题。我使用 ShowFromBarButtonItem 函数而不是 ShowInView 函数。
[organizeActionSheet showFromBarButtonItem:btnAction animated:NO];
如果使用 ShowFromRect 或 showFromBarButtonItem 运行时异常不会出现 。
我认为这是 IOS8 Beta 的一个错误，当我使用 ShowInView 运行时异常即将到来。
这个错误在 IOS Beta 4 中没有发生..
使用 Xcode 5.1 构建时，我确实在调试窗口中收到了一些警告消息，但确实会出现操作表。在 iOS 8 beta 4 中，它显示为 View 外部(侧面)的一个小弹出窗口，而在 iOS 7 中，它曾经显示为从 View 底部向上滑动的按钮。
关于ipad - iOS8beta 中的 UIActionSheet 崩溃，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/24363761/