Ios 在目标C中点击“下一步”和“上一步”按钮时，ScrollView未正确移动 -（iAction）下一个按钮上限：（id）发送方{ if（moreItemsgridView.contentOffset.x=moreItemsgridView.frame.size.width）{ CGRect帧； frame.origin.x=moreItemsgridView.contentOffset.x-moreItemsgridView.frame.size.width； frame.origin.y=0； frame.size=moreimsgridview.frame.size； [moreItemsgridView scrollRectToVisible:帧动画：是]； } }

当我点击“下一步”按钮时，我的图像会正确滚动，但当我点击“上一步”按钮时，图像会正确滚动，但最后只显示了一半的视图…我做错了什么…请帮我解决这个问题….

调用

[self.view layoutifneed]更新帧后

-(IBAction)nextButtonTapped:(id)sender {
    if (moreItemsgridView.contentOffset.x<=moreItemsgridView.contentSize.width) {
        CGRect frame;
        frame.origin.x = moreItemsgridView.contentOffset.x + moreItemsgridView.frame.size.width;
        frame.origin.y = 0;
        frame.size  = moreItemsgridView.frame.size;
        [moreItemsgridView scrollRectToVisible:frame animated:YES];
        //[moreItemsgridView setContentOffset:CGPointMake(moreItemsgridView.contentOffset.x + moreItemsgridView.contentSize.width, 0) animated:NO];
    }
}

-(IBAction)previousButtonTapped:(id)sender {
    if (moreItemsgridView.contentOffset.x>=moreItemsgridView.frame.size.width) {
        CGRect frame;
        frame.origin.x = moreItemsgridView.contentOffset.x - moreItemsgridView.frame.size.width;
        frame.origin.y = 0;
        frame.size = moreItemsgridView.frame.size;
        [moreItemsgridView scrollRectToVisible:frame animated:YES];
    }
}

-（iAction）下一个按钮上限：（id）发送方{
if（moreItemsgridView.contentOffset.x=moreItemsgridView.frame.size.width）{
CGRect帧；
frame.origin.x=moreItemsgridView.contentOffset.x-moreItemsgridView.frame.size.width；
frame.origin.y=0；
frame.size=moreimsgridview.frame.size；
[moreItemsgridView scrollRectToVisible:帧动画：是]；
[需要自行查看布局]
}
}
确切位置@Vinay Kiran[moreItemsgridView scrollRectToVisible:frame animated:YES]；你的意思是说你在滚动视图上设置了
paginEnabled
？如果没有，您是否允许用户滚动部分路径，因此您的“网格”未对齐？如果是这样的话，点击按钮，你是想滚动到一个“网格”位置，还是仅仅滚动一个“宽度”距离？
-(IBAction)nextButtonTapped:(id)sender {
    if (moreItemsgridView.contentOffset.x<=moreItemsgridView.contentSize.width) {
        CGRect frame;
        frame.origin.x = moreItemsgridView.contentOffset.x + moreItemsgridView.frame.size.width;
        frame.origin.y = 0;
        frame.size  = moreItemsgridView.frame.size;
        [moreItemsgridView scrollRectToVisible:frame animated:YES];
        //[moreItemsgridView setContentOffset:CGPointMake(moreItemsgridView.contentOffset.x + moreItemsgridView.contentSize.width, 0) animated:NO];


 [self.view layoutIfNeeded]

    }
}

-(IBAction)previousButtonTapped:(id)sender {
    if (moreItemsgridView.contentOffset.x>=moreItemsgridView.frame.size.width) {
        CGRect frame;
        frame.origin.x = moreItemsgridView.contentOffset.x - moreItemsgridView.frame.size.width;
        frame.origin.y = 0;
        frame.size = moreItemsgridView.frame.size;
        [moreItemsgridView scrollRectToVisible:frame animated:YES];


        [self.view layoutIfNeeded]
    }
}