Keyboard events called before UITextView delegate events

问题

I have a UITableView with UITextViews and UITextFields on it's cells. As obvious the keyboard overlaps the lower cells and you cannot see what you are typing. So I want to scroll the tableview to get the field visible. I wrote the code the iOS docs recommended: https://developer.apple.com/library/ios/documentation/StringsTextFonts/Conceptual/TextAndWebiPhoneOS/KeyboardManagement/KeyboardManagement.html

BUT the keyboard event callback keyboardWillShow: is called before the UITextView edit callback textViewDidBeginEditing:. So I cannot set the active textview when I try to calculate the scrolling I need to make the active textview visible.

Anyone knows a solution for this?

回答1:

Take the code out of keyboardWillShow: and add it into keyboardDidShow: This is obviously called after it has been presented ...

If you're using notifications you need to add:

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardDidShow:) name:UIKeyboardDidShowNotification object:nil];

来源：https://stackoverflow.com/questions/22389114/keyboard-events-called-before-uitextview-delegate-events