如何在警报视图IOS中创建两个文本字段

概述我想创建一个包含两个uitextfields的alertview. method://show alertview for file input- (IBAction)showAddFiles:(id)sender { UIAlertView *message = [[UIAlertView alloc] initWithTitle:@"Enter File Details" 我想创建一个包含两个uitextfIElds的alertvIEw.

method://show alertvIEw for file input- (IBAction)showAddfiles:(ID)sender {    UIAlertVIEw *message = [[UIAlertVIEw alloc] initWithTitle:@"Enter file Details"                                                      message:nil                                                     delegate:self                                            cancelbuttonTitle:@"Cancel"                                            otherbuttonTitles:@"Add",nil];    UITextFIEld *textFIEldDescription = [message textFIEldAtIndex:0];    textFIEldDescription.placeholder = @"file Description : Ex. Acat BrIEfing";    UITextFIEld *textFIEldfilename = [message textFIEldAtIndex:1];    textFIEldfilename.placeholder = @"Exact file name : Ex. acat.pdf";    [message show];}//make sure file description is long enoguh- (BOol)alertVIEwShouldEnableFirstOtherbutton:(UIAlertVIEw *)alertVIEw{    Nsstring *inputText = [[alertVIEw textFIEldAtIndex:0] text];    if( [inputText length] <= 15 && [inputText length] >= 4)    {        return YES;    }    else    {        return NO;    }}//handle add button- (voID)alertVIEw:(UIAlertVIEw *)alertVIEw clickedbuttonAtIndex:(NSInteger)buttonIndex{    Nsstring *Title = [alertVIEw buttonTitleAtIndex:buttonIndex];    if([Title isEqualToString:@"Add"])    {        UITextFIEld *fileDescription = [alertVIEw textFIEldAtIndex:0];        UITextFIEld *filename = [alertVIEw textFIEldAtIndex:1];        NSLog(@"Desc: %@\nname: %@",fileDescription.text,filename.text);    }}

错误：

*由于未捕获的异常’NSinvalidargumentexception’终止应用程序,原因：’textFIEldindex(0)超出了文本字段数组的范围’

为什么我会收到此错误,如何在警报视图中创建两个uitextfIEld？

=========工作解决方案===========
感谢下面的答案,当你只需要两个纯文本字段时

//show alertvIEw for file input- (IBAction)showAddfiles:(ID)sender {    UIAlertVIEw *message = [[UIAlertVIEw alloc] initWithTitle:@"Enter file Details"                                                      message:nil                                                     delegate:self                                            cancelbuttonTitle:@"Cancel"                                            otherbuttonTitles:@"Add",nil];    [message setAlertVIEwStyle:UIAlertVIEwStyleLoginAndPasswordinput];    UITextFIEld *fileDescription = [message textFIEldAtIndex:0];    fileDescription.placeholder=@"Ex. acat.pdf";    [[message textFIEldAtIndex:1] setSecureTextEntry:NO];    UITextFIEld *filename= [message textFIEldAtIndex:1];    filename.placeholder=@"Ex. Acat BrIEfing";    [message show];}

解决方法 分配“消息”警报视图后.将其添加到您的代码中：

[message setAlertVIEwStyle:UIAlertVIEwStyleLoginAndPasswordinput];[[message textFIEldAtIndex:1] setSecureTextEntry:NO];

这将使您的警报视图内部有两个文本字段.

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