1、在viewDidLoad方法中加入监测键盘的通知。
- (void)viewDidLoad {
[superviewDidLoad];
// Do any additional setup after loading the view.
[[NSNotificationCenterdefaultCenter]addObserver:selfselector:@selector(keyboardWillShow:)name:UIKeyboardWillShowNotificationobject:nil];
[[NSNotificationCenterdefaultCenter]addObserver:selfselector:@selector(keyboardWillHidden:)name:UIKeyboardWillHideNotificationobject:nil];
}
2、实现通知的方法
/**
* 键盘将要显示
*
* @param notification 通知
*/
-(void)keyboardWillShow:(NSNotification *)notification
{
//这样就拿到了键盘的位置大小信息frame，然后根据frame进行高度处理之类的信息
CGRect frame = [[[notification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey]CGRectValue];
CGFloat endHeight =self.showScrollView.contentSize.height + frame.size.height;
self.showScrollView.contentSize =CGSizeMake(SCREEN_WIDTH, endHeight);
self.showScrollView.contentOffset =CGPointMake(0,self.bottomView.originY);
}
/**
* 键盘将要隐藏
*
* @param notification 通知
*/
-(void)keyboardWillHidden:(NSNotification *)notification
{
CGRect frame = [[[notification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey]CGRectValue];
CGFloat endHeight =self.showScrollView.contentSize.height - frame.size.height;
self.showScrollView.contentSize =CGSizeMake(SCREEN_WIDTH, endHeight);
}