Question

I created a form and the keypad (Numeric only) appears when entering data like your age.

I want the keyboard to disappear when the user taps the background and I want to add a “Done” button in the empty slot under the 7 (next to the zero). (im using the Number Pad keyboard)

I found this example but I have a few questions.

In

-(void)viewDidLoad
{
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self                                                                       action:@selector(dismissKeyboard)];  [self.view addGestureRecognizer:tap]; 
}

-(void)dismissKeyboard
{
[aTextField resignFirstResponder];
[aTextField1 resignFirstResponder];
[aTextField2 resignFirstResponder];
[aTextField3 resignFirstResponder];
}

If I have more than 1 text field in my form.
Will I need to write every textfield in the dismissKeyboard method?

Answer 1

You should only send dismissKeyboard to that textField that you are currently editing.

In your code you have got memory leak. Better use this one:

-(void)viewDidLoad
{
    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(dismissKeyboard)];
    [self.view addGestureRecognizer:tap]; 
    [tap release];
}

To check if UITextField is currently in edit mode you can check its property:

A Boolean value indicating whether the text field is currently in edit mode. (read-only)

@property(nonatomic, readonly, getter=isEditing) BOOL editing

For example, you have 3 text fields then dismissKeyboard will look something like this:

-(void)dismissKeyboard
{
    UITextField *activeTextField = nil;
    if ([textField1 isEditing]) activeTextField = textField1;
    else if ([textField2 isEditing]) activeTextField = textField2;
    else if ([textField3 isEditing]) activeTextField = textField3;
    if (activeTextField) [activeTextField resignFirstResponder];
}