Question

我使用以下代码在UIAlertView中添加文本字段。它在Simulator（iOS SDK 5.0）中工作正常，但是当我在设备（iOS 4.0.1）中安装时，我收到“无法识别的选择器发送到实例错误”

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Enter your name" message:nil delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"OK", nil];

    alert.alertViewStyle = UIAlertViewStylePlainTextInput;

    alert.tag = 9001;

    [alert show];

    [alert release];

Answer 1

UIAlertView *myAlert = [[UIAlertView alloc] initWithTitle:@"My Test Alert" message:@"what do you want" delegate:nil cancelButtonTitle:@"tell me" otherButtonTitles:@"Cancel", nil];

[myAlert addTextFieldWithValue:@"nothing" label:@"say something"];

UITextField * aTextFld = [myAlert textFieldAtIndex: 0];
aTextFld.clearButtonMode = UITextFieldViewModeWhileEditing;
aTextFld.autocorrectionType = UITextAutocorrectionTypeNo;

[myAlert show];
[myAlert release];

Answer 2

从此处加入图书馆：http://iphonedevelopment.blogspot.com/2009/02/alert-view-with-prompt.html

尝试使用以下代码：

AlertPrompt *prompt = [AlertPrompt alloc]; 
    prompt.tag = 100;
    prompt = [prompt initWithTitle:@"Enter a name" message:@"                  " delegate:self cancelButtonTitle:@"Cancel" okButtonTitle:@"Save"];
    [prompt show];
    [prompt release];

Answer 3

 UIAlertView * alert = [[UIAlertView alloc] initWithTitle:@"Hello!" message:@"Please enter your name:" delegate:self cancelButtonTitle:@"Continue" otherButtonTitles:nil];
alert.alertViewStyle = UIAlertViewStylePlainTextInput;
UITextField * alertTextField = [alert textFieldAtIndex:0];
alertTextField.keyboardType = UIKeyboardTypeNumberPad;
alertTextField.placeholder = @"Enter your name";
[alert show];
[alert release];

iphone 4 UIAlertView setAlertViewStyle无法识别的选择器发送到实例

3 个答案: