Alertview警告

Question

可能重复：

warning: 'UIAlertView' may not respond to '-addTextFieldWithValue:label:'

我在AlertView中为put textfield使用下面的代码，它给出了一个警告，比如"UIAlertView可能不会响应- addTextFieldWithValue: label:“& "UIAlertView可能不会响应-textFieldAtIndex”。

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Email" message:@""
                                                   delegate:self cancelButtonTitle:@"Cancel"  otherButtonTitles:@"Submit", nil];

[alert addTextFieldWithValue:@"" label:@"Email"];
// Username
textfieldName = [alert textFieldAtIndex:0];
textfieldName.keyboardType = UIKeyboardTypeEmailAddress;
textfieldName.keyboardAppearance = UIKeyboardAppearanceAlert;
textfieldName.autocorrectionType = UITextAutocorrectionTypeNo;
[alert show];

请帮帮忙！

Answer 1

没有用于uialertview的"addTextFieldWithValue“方法。

如果您需要修改您的警报视图，请查看我的博客- http://www.makebetterthings.com/blogs/iphone/add-uitextfield-in-uialertview/

Answer 2

这些方法不像addTextFieldWithValue in UIAlertView那样。

Answer 3

[alert addTextFieldWithValue:@"" label:@"Email"];是一个私有api。我的应用程序因为使用这个而被拒绝了。

使用这个

UIAlertView *myAlert = [[UIAlertView alloc] initWithTitle:@"Twitter" 
                                                          message:@"\n\n\n\n"  
                                                         delegate:self 
                                                cancelButtonTitle:@"" 
                                                otherButtonTitles:@"", nil];


myAlert.frame = CGRectMake( 0, 0, 300, 260);
textfieldName = [[UITextField alloc] initWithFrame:CGRectMake(13, 95, 260, 25.0)];
[textfieldName setBackgroundColor:[UIColor whiteColor]];
textfieldName.placeholder = @"xyz";
textfieldName.keyboardType = UIKeyboardTypeAlphabet;
textfieldName.keyboardAppearance = UIKeyboardAppearanceAlert;
textfieldName.autocorrectionType = UITextAutocorrectionTypeNo;
textfieldName.delegate = self;
textfieldName.tag = 1;
[myAlert addSubview:textfieldName];