Iphone 通过单击键盘上的“发送”按钮保存数据并转到上一个视图

我有一个注册页面，在注册中输入详细信息后，我想单击键盘上的发送按钮（代替返回键）。它应该保存注册页面中的所有数据，并将我带到上一个登录页面

对于用户名和电子邮件文本字段，我使用了下一步按钮，以便在我处理完每个文本字段后切换选项卡。它工作得很好

因此，当我单击电子邮件文本字段键盘上的“下一步”按钮时，它会将我带到密码文本字段，一旦我输入完密码，键盘上的“发送”按钮就会显示出来。但当我尝试单击它时，不会执行任何操作

因此，如果我点击发送按钮，它应该保存我在注册页面中输入的所有数据，并将我带到上一个登录页面。就像一个普通的提交按钮一样，我希望键盘上的发送按钮执行操作，而不是其他普通按钮

这是我在注册页面中发送和下一个键盘按钮的代码

-(IBAction)send
{

    NSUserDefaults *stringDefault = [NSUserDefaults standardUserDefaults];

    [stringDefault setValue:@"" forKey:@"stringKey"];
    [stringDefault setValue:name.text forKey:@"Username"];
    [stringDefault setValue:email.text forKey:@"EmailID"];
    [stringDefault setValue:password.text forKey:@"password"];
    [stringDefault synchronize];
    NSLog(@"%@",name.text);
    //   NSLog(@"%@",email.text);`
    // NSLog(@"%@",password.text);
    NSString *emailRegEx = @"[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegEx];
    //Valid email address
    if ([emailTest evaluateWithObject:email.text] == NO) 
    {
        UIAlertView *Alt = [[UIAlertView alloc] initWithTitle:@"Incorrect" message:@"Enter a valid email id" delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil];
        [Alt show];
        [Alt release];
        NSLog(@"email not in proper format");

    }
    NSString *passwordd = @"[A-Za-z]{8,12}";
    NSPredicate *passtest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", passwordd];
    //Valid email address
    if ([passtest evaluateWithObject:password.text] == NO) 
    {   
        UIAlertView *Alt = [[UIAlertView alloc] initWithTitle:@"Incorrect" message:@"Enter a valid password" delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil];
        [Alt show];
        [Alt release];
        //  NSLog(@"email not in proper format");

    }

    login *l=[[login alloc]initWithNibName:@"login" bundle:nil];

    [self presentModalViewController:l animated:YES];

   }


-(IBAction)next:(UITextField *)ras{
        if (ras == name) {
            [ras resignFirstResponder];
            [email becomeFirstResponder];
        } 
        else if (ras == email) {
            [ras resignFirstResponder];
            [password becomeFirstResponder];
        }
        else if (ras == password) {
            [ras resignFirstResponder];
        }
        //return YES;
    }

---

有解决方案吗？

将属性UIReturnType发送到UIExtField的UIReturnTypeSend并设置委托

[usernameTextField setReturnType:UIReturnTypeSend];
[usernameTextField setDelegate:self];
[passwordTextField setReturnType:UIReturnTypeSend];
[passwordTextField setDelegate:self];

然后使用然后textFieldDelegateMethod ShouldReturn

-(BOOL)validationSuccess{

    NSString *emailRegEx = @"[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";

    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegEx];

    //Valid email address
    if ([emailTest evaluateWithObject:email.text] == NO)
    {
        UIAlertView *Alt = [[UIAlertView alloc] initWithTitle:@"Incorrect" message:@"Enter a valid email id" delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil];
        [Alt show];
        [Alt release];
        NSLog(@"email not in proper format");

        return NO;

    }
    NSString *passwordd = @"[A-Za-z]{8,12}";
    NSPredicate *passtest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", passwordd];
    //Valid email address
    if ([passtest evaluateWithObject:password.text] == NO)
    {
        UIAlertView *Alt = [[UIAlertView alloc] initWithTitle:@"Incorrect" message:@"Enter a valid password" delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil];
        [Alt show];
        [Alt release];
        //  NSLog(@"email not in proper format");

        return NO;

     }

    return YES;

}

-(BOOL)textFieldShouldReturn:(UITextField *)textField{

    if([self validationSuccess])
    {
        //Save your data here

        [self saveData];

        //If you have pushed from loginviewcontroller then you can go back directly

        [[self navigationController] popToRootViewControllerAnimated:YES];

        //Or if you have presented from loginviewcontroller

         [self dismissViewControllerAnimated:YES completion:NULL];

    }

    return YES;
}

-(void)saveData{

    NSUserDefaults *stringDefault = [NSUserDefaults standardUserDefaults];
    [stringDefault setValue:@"" forKey:@"stringKey"];
    [stringDefault setValue:name.text forKey:@"Username"];
    [stringDefault setValue:email.text forKey:@"EmailID"];
    [stringDefault setValue:password.text forKey:@"password"];
    [stringDefault synchronize];

}

---

您想只存储一个用户数据还是多个用户数据…？注册期间一次只存储一个用户。但如果多个用户在我的应用程序中注册，他们将拥有各自的帐户。对于单个用户，您可以使用NSuserDefoult进行管理，但如果您为多用户创建帐户，则必须使用Sqlitedatabase@NitinGohel：你能再帮我解决一个关于重新安排照片的问题吗？@Nitinghel:你能把你的邮件id发给我吗？我的是阿吉特。wl07@gmail.comHi，你能告诉我你建议的前4行代码应该写在哪里吗？在viewdidload中“将属性UIReturnType发送到UIReturnTypeSend of UITextField并设置委托”，或者您可以通过接口生成器更改属性。因此，如果我在接口生成器中更改了返回类型键，我不需要正确编写这些代码？代码是正确的。但是如何对发送按钮进行操作呢？当我点击发送时，即使使用您的代码，它也不起作用。您不需要为发送按钮操作创建另一个操作。您可以将您的发送按钮代码写入textFieldShouldReturn中，正如我所提到的（当您点击发送按钮时，textFieldShouldReturn方法将调用）