IOS鍵盤擋住UITextView的解決方案

IOS鍵盤擋住UITextView的解決方案

- (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的父控制項的frame

_inputDiaryView就是UITextView的父控制項