键盘 应用

第一个 监听键盘弹出高度 避免遮挡页面

网上找的 存起来

viewDidLoad里

//    监听键盘通知

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

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

 

-(void)keyboardWillShow:(NSNotification *)showNot{

    //    1.取出键盘frame

    CGRect keyboardFrame= [showNot.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];

    CGFloat upRectFrame = keyboardFrame.size.height /2;

    

    //    2.键盘弹出的时间

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

    //    3.执行动画

    [UIView animateWithDuration:duration animations:^{

        

        self.view.transform=CGAffineTransformMakeTranslation(0,-upRectFrame);

       

    }];

    

}

 

-(void)keyboardWillHide:(NSNotification *)hideNot{

    //    2.键盘弹出的时间

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

    //    3.执行动画

    [UIView animateWithDuration:duration animations:^{

        self.view.transform=CGAffineTransformIdentity;

    }];

}

 

//释放通知

-(void)delete:(id)sender{

    [[NSNotificationCenter defaultCenter] removeObserver:self];

}

点击空白 滑动 收起键盘

 self.view.userInteractionEnabled = YES;

    UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(fingerTapped:)];

    [self.view addGestureRecognizer:singleTap];

-(void)fingerTapped:(UITapGestureRecognizer *)gestureRecognizer

{  

    [self.view endEditing:YES];   

}

-(void)scrollViewDidScroll:(UIScrollView *)scrollView{

  [self.view endEditing:YES];

}