当用户单击文本字段时，将UITextField移到键盘上方

Question

I want to move UITextField up above keyboard when user clicks UITextField .

I searched about this and some suggestion are to move whole view up and some suggestion are add scrollview.

But I don't want to use scrollview.

How can I do this?

Answer 1

Give your UITextField bottom Constant and when you found keyboard height in keyboardWillShow increase your UITextField bottom constraint to KeyboardHeight .

Just Put below code in ViewWillAppear.

[[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWillShow:)
                                                 name:UIKeyboardWillShowNotification
                                               object:nil];

And put below code in ViewWillDisappear.

[[NSNotificationCenter defaultCenter] removeObserver:self
                                                    name:UIKeyboardWillShowNotification
                                                  object:nil];

Method

- (void)keyboardWillShow:(NSNotification *)notification
{
    // Get the size of the keyboard.
    CGSize keyboardSize = [[[notification userInfo] objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;

    int keyboardHeight = MIN(keyboardSize.height,keyboardSize.width);

    textBottom.constant = 0.0f;

    for (UIView *vw in commentView.subviews) {
        if ([vw isKindOfClass:[UITextField class]]) {
            txtComment = (UITextField *)vw;
            textBottom.constant = keyboardHeight;
        }
    }
}

Answer 2

Here is one awesome solution: https://github.com/hackiftekhar/IQKeyboardManager

It easy to integrate and effortless.

You won't have to use a UIScrollView in each of your UIViewControllers.