Objective-c – Get keyboard input without a text field/view

Word-wrapping is not available on UITextField because UITextField only supports single-line text.

Use a UITextView. Make textView.backgroundColor = [UIColor clearColor]. Add the UIImage first, then the UITextView on top of it. Make sure the sizes are correct, and you should be fine.

As for changing the size of the UITextView, in your UITextViewDelegate, do something like this:

- (void)textViewDidChange:(UITextView *)textView
{
    NSString *s = textView.text;
    CGSize testSize = CGSizeMake(textView.frame.size.width, NSIntegerMax);
    CGSize neededSize = [s sizeWithFont: textView.font constrainedToSize: testSize     lineBreakMode: UILineBreakModeWordWrap]; // or UILineBreakModeCharacterWrap?

    if (neededSize.height > testSize.height)
    {
        // grow textView
        textView.frame = CGRectMake(textView.frame.origin.x, textView.frame.origin.y, neededSize.width, neededSize.height);

        // then adjust the image size -- something like this
        imageView.frame = textView.frame 
    }

}

You can prevent Safari from automatically zooming in on text fields during user input without disabling the user’s ability to pinch zoom. Just add maximum-scale=1 but leave out the user-scale attribute suggested in other answers.

It is a worthwhile option if you have a form in a layer that “floats” around if zoomed, which can cause important UI elements to move off screen.

<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">