忘记密码/用户名 Xcode

Question

I am building login/signup pages and it's work so perfectly.

But I just want to know how I can add a label or a button for the "Forgot my password or username" on the login page.

• I'd like to have a pop up message or an alert that allows the user to enter their Email
  • so in case their Email doesn't exist in the database there will pop a message that says, that this email is not correct or something
  • in case the email already exists in the database I want to send the username and a new password to the user.

Please note that I am using parse.

Thank you,

Answer 1

First display an alert view with type UIAlertViewStylePlainTextInput

  UIAlertView * forgotPassword=[[UIAlertView alloc] initWithTitle:@"Forgot Password"      message:@"Please enter your email id" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"Ok", nil];
forgotPassword.alertViewStyle=UIAlertViewStylePlainTextInput;
[forgotPassword textFieldAtIndex:0].delegate=self;
[forgotPassword show];

and in your alert view delegate

 if(buttonIndex ==1){
    NSLog(@"ok button clicked in forgot password alert view");
NSString *femailId=[alertView textFieldAtIndex:0].text;
    if ([femailId isEqualToString:@""]) {
        UIAlertView *display;
        display=[[UIAlertView alloc] initWithTitle:@"Email" message:@"Please enter password for resetting password" delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles: nil];
        [display show];

    }else{
        [PFUser requestPasswordResetForEmailInBackground:femailId block:^(BOOL succeeded, NSError *error) {
            UIAlertView *display;
            if(succeeded){
                display=[[UIAlertView alloc] initWithTitle:@"Password email" message:@"Please check your email for resetting the password" delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles: nil];

            }else{
                display=[[UIAlertView alloc] initWithTitle:@"Email" message:@"Email doesn't exists in our database" delegate:nil cancelButtonTitle:@"Cancel" otherButtonTitles: nil];
            }
            [display show];
        }];

    }