How can I Add TextField & CheckBox into the same AlertView - ios

Question

I've added CheckBox into AlertView now I'd like to add TextField too into the same AlertView.
UIAlertView *alertForExistingCredit = [[UIAlertView alloc] init];
rememberButton = [[UIButton alloc] init];
UIView *v = [[UIView alloc] init];
[rememberButton setImage:[UIImage imageNamed:#"PortraitPhoto_Checkbox-Normal.png"]
forState:UIControlStateNormal];
[rememberButton setTitle:#"Save Code" forState:UIControlStateNormal];
[rememberButton addTarget:self action:#selector(toggleRememberMethod) forControlEvents:UIControlEventTouchUpInside];
alertForExistingCredit = [[UIAlertView alloc] initWithTitle:#"PrePay Code"
message:#""
delegate:self
cancelButtonTitle:kCancelMessage
otherButtonTitles:kAlertOkMessage, nil];
[v addSubview:rememberButton];
If I use:
//plain text part
// alertForExistingCredit.alertViewStyle = UIAlertViewStylePlainTextInput;
// [[alertForExistingCredit textFieldAtIndex:0] setPlaceholder:#"PrePay Code"]; this lines of code it is not showing on the screen
if (floor(NSFoundationVersionNumber) > NSFoundationVersionNumber_iOS_6_1) {
v.frame = CGRectMake(0, 0, 250, 40);
rememberButton.frame = CGRectMake(0.0, 0, 250, 50.0);
[rememberButton setTitleColor:[UIColor blackColor]
forState:UIControlStateNormal];
alertForExistingCredit.message = #"Please insert your PrePay code";
[alertForExistingCredit setValue:v forKey:#"accessoryView"]
}else {
v.frame = CGRectMake(0, 80, 250, 40);
rememberButton.frame = CGRectMake(0.0, 0, 250, 40.0);
alertForExistingCredit.message = #"Please insert your PrePay code";
[alertForExistingCredit addSubview:v];
}
alertForExistingCredit.tag = 0;
[alertForExistingCredit show];
}

Answer 1

Try to add this UITextField to your v (UIView), and try to adjust frame size and location.
UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(10, 50, 250, 50)];
textField.borderStyle = UITextBorderStyleRoundedRect;
textField.font = [UIFont systemFontOfSize:15];
textField.placeholder = #"enter text";
textField.autocorrectionType = UITextAutocorrectionTypeNo;
textField.keyboardType = UIKeyboardTypeDefault;
textField.returnKeyType = UIReturnKeyDone;
textField.clearButtonMode = UITextFieldViewModeWhileEditing;
textField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
textField.delegate = self;
[v addSubview:textField];

Answer 2

Add add a subview into your UIAlertView and put your buttons into that view, see the code to add a UIView into your UIAlertView
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"TEST" message:#"subview" delegate:nil cancelButtonTitle:#"NO" otherButtonTitles:#"YES", nil];
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 80, 40)];
[alert setValue:view forKey:#"accessoryView"];
// add your button in *view*.
[alert show];