Question

我正在尝试链接弹出的UIAlertView中的一个按钮，以便它更改为另一个viewcontroller。基本上，取消已经有效，但是当单击Next时它没有，我不知道如何链接到另一个viewcontroller。请帮忙。

#import "ViewController.h"

@interface ViewController() <UIAlertViewDelegate>

@end

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}
- (IBAction)clickButton:(id)sender {
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle: @"Test" message: @"Message" delegate: self cancelButtonTitle:@"Cancel" otherButtonTitles:@"Redeem", nil];
    [alert show];
}

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
    if(buttonIndex == 1){ //Next
        UIViewController* newView = [[UIViewController alloc] init];
        [self presentViewController:newView animated:YES completion:nil];
    }
    }

@end

Answer 1

它正在工作......只需创建要呈现的viewcontroller对象而不是

UIViewController* newView = [[UIViewController alloc] init];

喜欢

SecondViewController * newView = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];

如果您使用的是xib。

或

SecondViewController * newView = [self.storyboard instantiateViewControllerWithIdentifier:@"SecondViewController"];

如果你正在使用故事板（如果你想通过编码）。

然后写

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

线。

xcode如何将UIAlertview动作链接到另一个viewcontroller？

1 个答案: