Question

我需要当两个NSStrings相等时它导航下一个ViewControl和两个NSStrings不等于只显示警告。

NSString* foo = @"Foo";
NSString* bar = [NSString stringWithFormat:@"%@",foo];
if([foo isEqualToString:bar])
    //it's redirect nextViewControl
else
     UIAlertView *alert=[[UIAlertView alloc]initWithTitle:@"Message!" message:@"NOt Valid" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];

所以请告诉我有关重定向到NextViewControl的任何想法。我知道Button被单击以重定向到NextViewControl。

 SecondViewController *second=[[SecondViewController alloc]initWithNibName:nil bundle:nil];
[second setModalTransitionStyle:UIModalTransitionStyleFlipHorizontal];
    [self presentViewController:second animated:YES completion:NULL ];

但我不知道如何根据条件重定向到ViewControl。谢谢高级。

Answer 1

试试这个

    NSString* foo = @"Foo";
    NSString* bar = [NSString stringWithFormat:@"%@",foo];
    if([foo isEqualToString:bar])
    {
        SecondViewController *second=[[SecondViewController alloc]initWithNibName:@"SecondViewController" bundle:nil]; 
        [second setModalTransitionStyle:UIModalTransitionStyleFlipHorizontal];
        [self presentViewController:second animated:YES completion:NULL ];
    }
    //it's redirect nextViewControl
    else
    {
        UIAlertView *alert=[[UIAlertView alloc]initWithTitle:@"Message!" message:@"NOt Valid" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
    }

我希望这对你有用。

Answer 2

试试这个

 NSString* foo = @"Foo";
    NSString* bar = [NSString stringWithFormat:@"%@",foo];
    if([foo isEqualToString:bar])
    {
        ViewController *second=[[ViewController alloc]initWithNibName:@"ViewController" bundle:nil];
        [second setModalTransitionStyle:UIModalTransitionStyleFlipHorizontal];

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

        NSLog(@"hie");
    }
    else
    {
        UIAlertView *alert=[[UIAlertView alloc]initWithTitle:@"Message!" message:@"NOt Valid" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
        [alert show];
    }

Answer 3

NSString * str1 = @“下一步”; NSString * str2 = [NSString stringWithFormat：@“％@”，str1];

if ([str1 isEqualToString:str2])
{
    SecondViewController *scrSecond = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];
    [self.navigationController pushViewController:scrSecond animated:YES];
}

当两个字符串相等时，如何重定向到下一页

3 个答案: