第11月第31天 keyboardwillshow CGAffineTransformMakeTranslation

1.

- (void)dealloc
{
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}
 
- (void)registerNotification {
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(showKeyboard:) name:UIKeyboardWillShowNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self  selector:@selector(hideKeyboard:) name:UIKeyboardWillHideNotification object:nil];
}
 
#pragma mark - keyboard
- (void)showKeyboard:(NSNotification *)noti {
    NSDictionary *info=[noti userInfo];
 
    NSTimeInterval duration = [info[UIKeyboardAnimationDurationUserInfoKey] doubleValue];
    UIViewAnimationOptions options = [info[UIKeyboardAnimationCurveUserInfoKey] unsignedIntegerValue] << ;
 
    CGRect keyboardRect = [info[UIKeyboardFrameEndUserInfoKey] CGRectValue];
    CGFloat keyboardHeight = MIN(CGRectGetWidth(keyboardRect), CGRectGetHeight(keyboardRect));
 
    [UIView animateWithDuration:duration delay: options:options animations:^{
        CGFloat compareH = self.tableView.contentSize.height -(self.view.height -  -  - keyboardHeight);
        if (compareH >  ) {
            if (compareH < keyboardHeight) {
                self.tableView.transform = CGAffineTransformMakeTranslation(, -compareH);
            } else {
                self.tableView.transform = CGAffineTransformMakeTranslation(, -keyboardHeight);
            }
        }
 
        self.bottomView.transform = CGAffineTransformMakeTranslation(, -keyboardHeight);
 
    } completion:nil];
}
 
- (void)hideKeyboard:(NSNotification *)noti {
 
    NSDictionary *info=[noti userInfo];
 
    NSTimeInterval duration = [info[UIKeyboardAnimationDurationUserInfoKey] doubleValue];
    UIViewAnimationOptions options = [info[UIKeyboardAnimationCurveUserInfoKey] unsignedIntegerValue] << ;
 
    [UIView animateWithDuration:duration delay: options:options animations:^{
 
        self.tableView.transform = CGAffineTransformIdentity;
        self.bottomView.transform = CGAffineTransformIdentity;
 
    } completion:nil];
 
}