UIKeyboardDidShowNotification called multiple times, and sometimes with incorrect keyboard dimensions

Question

I am trying to move a UITextView above the keyboard whenever the keyboard appears/changes. Let\'s say I have the English keyboard displaying and then switch directly to the Chin

Answer 1

- (void)keyboardDidAppear:(NSNotification *)note {
    CGSize keyboardSize = [note.userInfo[UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;
    UIEdgeInsets contentInsets = UIEdgeInsetsMake(0.0, 0.0, keyboardSize.height, 0.0);
    textView.contentInset = contentInsets;
    textView.scrollIndicatorInsets = contentInsets;
}

- (void)keyboardWillBeHidden:(NSNotification *)note {
    UIEdgeInsets contentInsets = UIEdgeInsetsZero;
    textView.contentInset = contentInsets;
    textView.scrollIndicatorInsets = contentInsets;
}

The solution is from Apple's official solution here like 曹 said.