IOS键盘遮盖问题解决办法

来源：互联网发布：JAVA年龄正则表达式编辑：程序博客网时间：2024/06/14 13:50

1.添加键盘显示和隐藏通知事件响应

<pre name="code" class="objc">  // 添加键盘显示/隐藏的通知    [[NSNotificationCenter defaultCenter] addObserver:self                                                  selector:@selector(keyboardWillShow:)                                                      name:UIKeyboardDidShowNotification object:nil];            [[NSNotificationCenter defaultCenter] addObserver:self                                                  selector:@selector(keyboardWillHide:)                                                      name:UIKeyboardWillHideNotification object:nil];

2.事件响应

<pre name="code" class="objc">#pragma mark - Notification Method///键盘显示事件- (void) keyboardWillShow:(NSNotification *)notification {         //获取键盘高度，在不同设备上，以及中英文下是不同的    CGFloat kbHeight = [[notification.userInfo objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size.height;    // 取得键盘的动画时间，这样可以在视图上移的时候更连贯    double duration = [[notification.userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue];    CGFloat offset=输入框下边沿纵坐标-(self.view.frame.size.height-kbHeight);    //将视图上移计算好的偏移    if(offset > 0) {        [UIView animateWithDuration:duration animations:^{            self.view.frame = CGRectMake(0.0f, -offset, self.view.frame.size.width, self.view.frame.size.height);        }];    }}///键盘消失事件- (void) keyboardWillHide:(NSNotification *)notify {    // 键盘动画时间    double duration = [[notify.userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue];        //视图下沉恢复原状    [UIView animateWithDuration:duration animations:^{        self.view.frame = CGRectMake(0, 64, self.view.frame.size.width, self.view.frame.size.height);    }];}

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