IOS键盘挡住UITextView的解决方案
- (void)registerForKeyboardNotifications { [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWasShown:) name:UIKeyboardDidShowNotification object:nil]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillBeHidden:) name:UIKeyboardWillHideNotification object:nil]; } - (void)unregisterForKeyboardNotifications { [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillShowNotification object:nil]; [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillHideNotification object:nil]; } - (void)viewWillAppear:(BOOL)animated { [self registerForKeyboardNotifications]; _viewFrame = _inputDiaryView.frame; } - (void)viewDidDisappear:(BOOL)animated { [self unregisterForKeyboardNotifications]; } - (void)keyboardWasShown:(NSNotification *)aNotification { CGRect keyboardRect = [[[aNotification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue]; NSTimeInterval animationDuration = [[[aNotification userInfo] objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue]; [UIView beginAnimations:TEXTVIEW_KEYBOARD context:nil]; [UIView setAnimationDuration:animationDuration]; _inputDiaryView.frame = CGRectMake(0, _viewFrame.origin.y - keyboardRect.size.height, _viewFrame.size.width, _viewFrame.size.height); [UIView commitAnimations]; } - (void)keyboardWillBeHidden:(NSNotification *)aNotification{ NSTimeInterval animationDuration = [[[aNotification userInfo] objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue]; [UIView beginAnimations:TEXTVIEW_KEYBOARD context:nil]; [UIView setAnimationDuration:animationDuration]; _inputDiaryView.frame = _viewFrame; [UIView commitAnimations]; }
_viewFrame:是UITextView的父控件的frame
_inputDiaryView就是UITextView的父控件
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