// 监听键盘

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShowAction:) name:UIKeyboardWillShowNotification object:nil];

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHideAction:) name:UIKeyboardWillHideNotification object:nil];

#pragma mark - 键盘处理

/**

 *  键盘即将隐藏

 */

- (void)keyboardWillHideAction:(NSNotification *)note

{

    // 1.键盘弹出需要的时间

    CGFloat duration = [note.userInfo[UIKeyboardAnimationDurationUserInfoKey] doubleValue];

    // 2.动画

    [UIView animateWithDuration:duration animations:^{

        self.view.transform = CGAffineTransformIdentity;

    }];

}

/**

 *  键盘即将弹出

 */

- (void)keyboardWillShowAction:(NSNotification *)note

{

    // 1.键盘弹出需要的时间

    CGFloat duration = [note.userInfo[UIKeyboardAnimationDurationUserInfoKey] doubleValue];

    // 2.动画

    [UIView animateWithDuration:duration animations:^{

        // 取出键盘高度

        CGRect keyboardF = [note.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];

        CGFloat keyboardH = keyboardF.size.height - ;

        if (_ThreeInch) {

            self.view.transform = CGAffineTransformMakeTranslation(, - keyboardH);

        } else {

            self.view.transform = CGAffineTransformMakeTranslation(, - );

        }

    }];

}