ios 6中带有文本字段和三个按钮的UIAlertView问题

Question

     UIAlertView* alert = [[UIAlertView alloc] initWithTitle:@"Enter Student Name"        message:nil delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"Save", @"Save and Add", nil];
                alert.tag = 1;
                alert.transform=CGAffineTransformMakeScale(1.0, 0.75);
                alert.alertViewStyle=UIAlertViewStylePlainTextInput;
                [alert show];

-(void)willPresentAlertView:(UIAlertView *)alertView {

    if (alertView.tag == 1) {


        for (UIView *view in alertView.subviews) {
            if ([view isKindOfClass:[UITextField class]]||
                [view isKindOfClass:[UIButton class]] || view.frame.size.height==31) {
                CGRect rect=view.frame;
                rect.origin.y += 65;
                view.frame = rect;
            }
        }

    }


}

当我显示带有文本字段和三个按钮的警报视图时，它在 ios 7 中工作正常，但在 ios 6 中却没有。 看看两个 ios 图片 -->

你们都可以看到 ios 6 的警报视图受到干扰......但我没有明白我在那里做错了什么。

Answer 1

试试这个代码

  UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Enter Student Name"
                                                message:@""
                                               delegate:self
                                      cancelButtonTitle:@"Cancel"
                                      otherButtonTitles:@"Save",@"Save & Add",nil];

alert.alertViewStyle = UIAlertViewStylePlainTextInput;
[alert show];



-(void)willPresentAlertView:(UIAlertView *)alertView {

if ([[[UIDevice currentDevice] systemVersion] floatValue] <7) 

   {
    [alertView setFrame:CGRectMake(17, 30, 286, 280)];
    NSArray *subviewArray = [alertView subviews];
    UILabel *message = (UILabel *)[subviewArray objectAtIndex:2];
    [message setFrame:CGRectMake(10, 46, 260, 20)];
    UIButton *cancelbutton = (UIButton *)[subviewArray objectAtIndex:3];
    [cancelbutton setFrame:CGRectMake(10, 125, 260, 42)];
    UIButton *savebutton = (UIButton *)[subviewArray objectAtIndex:4];
    [savebutton setFrame:CGRectMake(10, 170, 260, 42)];
    UIButton *saveAddbutton = (UIButton *)[subviewArray objectAtIndex:5];
    [saveAddbutton setFrame:CGRectMake(10, 220, 260, 42)];
    UITextField *textfield = (UITextField *)[subviewArray objectAtIndex:6];
    [textfield setFrame:CGRectMake(10, 80, 266, 50)];
    UITextField *placeTF = (UITextField *)[subviewArray objectAtIndex:7];
    [placeTF setFrame:CGRectMake(15, 70, 256, 50)];
   }

}

检查 ios 6 映像

编辑

对于旋转问题，请使用此代码

- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation{
if (UIInterfaceOrientationPortrait == UIInterfaceOrientationIsPortrait(fromInterfaceOrientation))
{
           [alert setFrame:CGRectMake(100, 10, 286, 320)];
    NSArray *subviewArray = [alert subviews];
    UILabel *messageLB = (UILabel *)[subviewArray objectAtIndex:2];
    [messageLB setFrame:CGRectMake(10, 46, 260, 20)];
    UIButton *cancelBT = (UIButton *)[subviewArray objectAtIndex:3];
    [cancelBT setFrame:CGRectMake(10, 125, 260, 42)];
    UIButton *okBT = (UIButton *)[subviewArray objectAtIndex:4];
    [okBT setFrame:CGRectMake(10, 170, 260, 42)];
    UIButton *searchBT = (UIButton *)[subviewArray objectAtIndex:5];
    [searchBT setFrame:CGRectMake(10, 220, 260, 42)];
    UITextField *plateTF = (UITextField *)[subviewArray objectAtIndex:6];
    [plateTF setFrame:CGRectMake(10, 80, 266, 50)];
    UITextField *placeTF = (UITextField *)[subviewArray objectAtIndex:7];
    [placeTF setFrame:CGRectMake(15, 70, 256, 50)];

  
}
else{
   
    [alert setFrame:CGRectMake(17, 30, 286, 280)];
    NSArray *subviewArray = [alert subviews];
    UILabel *messageLB = (UILabel *)[subviewArray objectAtIndex:2];
    [messageLB setFrame:CGRectMake(10, 46, 260, 20)];
    UIButton *cancelBT = (UIButton *)[subviewArray objectAtIndex:3];
    [cancelBT setFrame:CGRectMake(10, 125, 260, 42)];
    UIButton *okBT = (UIButton *)[subviewArray objectAtIndex:4];
    [okBT setFrame:CGRectMake(10, 170, 260, 42)];
    UIButton *searchBT = (UIButton *)[subviewArray objectAtIndex:5];
    [searchBT setFrame:CGRectMake(10, 220, 260, 42)];
    UITextField *plateTF = (UITextField *)[subviewArray objectAtIndex:6];
    [plateTF setFrame:CGRectMake(10, 80, 266, 50)];
    UITextField *placeTF = (UITextField *)[subviewArray objectAtIndex:7];
    [placeTF setFrame:CGRectMake(15, 70, 256, 50)];

}
}

Answer 2

我也在这里尝试过，似乎 UIAlertView 中的 3 个或更多按钮的样式“UIAlertViewStylePlainTextInput”不适合。

您的问题似乎与此直接相关：
iOS5: Has somebody managed to fix UIAlertView with three buttons and textfield (UIAlertViewStylePlainTextInput)?

---

不建议弄乱 UIAlertView 的视图层次结构（因为某些状态的 App Store 拒绝）
参考：如何Move buttons down in UIAlertView

您可以创建自己的自定义警报视图：
http://iosdevtricks.blogspot.in/2013/04/creating-custom-alert-view-for-iphone.html

或使用预制的，例如：
https://github.com/TomSwift/TSAlertView

如果你仍然想冒险，那么按照 Kalpesh 在这里的建议（但我不会推荐）

Answer 3

不要乱用UIAlertView，您应该使用自定义呈现（或模态）视图。 Apple 也不喜欢你搞砸UIAlertView。

所以，我（也是最好的）对您的建议是使用自定义呈现（或模态）视图，这在您的情况下也是正确的方法。

Answer 4

您做错了什么是您尝试自定义 UIAlertView 并将子视图放入其中。 苹果通常不喜欢并禁止这种方法。 您可以尝试执行以下操作：

1. 您可以尝试自定义警报视图“复制”like this one

2. 编写您自己的警报视图“复制”，以满足您的需求并在 iOS6/7 上同样工作。