Question

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController<UIPopoverControllerDelegate>
@property (strong, nonatomic) UIButton *Button;

@property (nonatomic, retain) IBOutlet UIPopoverController *poc;


@end

这是我在接口文件

中声明的内容

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.Button=[UIButton buttonWithType:UIButtonTypeCustom];
    [_Button addTarget:self
                  action:@selector(showPop:)
        forControlEvents:UIControlEventTouchUpInside];
    self.Button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0);
    self.Button.backgroundColor=[UIColor redColor];

   [self.view addSubview:self.Button];

   // Do any additional setup after loading the view, typically from a nib.
}

-(void)showPop:(UIButton *)button {
    UIViewController *detailsViewController =[[UIViewController alloc] init];

    self.poc = [[UIPopoverController alloc] initWithContentViewController:detailsViewController];
    [self.poc setDelegate:self];
    [self.poc presentPopoverFromRect:_Button.frame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionLeft animated:YES];

在[self.poc setdelegate:self]上崩溃了 errorlibc ++ abi.dylib：以NSException类型的未捕获异常终止

  @autoreleasepool {
    return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
}

带有线程SIGABRT的这行代码上的

绿色。我已经在ipad中运行了这个，但仍然有应用程序崩溃同样的错误。 `

Popover与NSException类型的未捕获异常崩溃

0 个答案: