Custom position of elements

summertian4 commented 7 years ago

Can DZNEmptyDataSet support custom elements position if i don`t want EmptyView default in the middle.

Sometimes, our UI designer has such a requirements:

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Please add some interface.

summertian4 commented 7 years ago

I know I can use - (CGFloat)verticalOffsetForEmptyDataSet:(UIScrollView *)scrollView. But this need some calculation. How about give a simple interface like frameInSuperView.

DreamBuddy commented 7 years ago

最近遇到了同样的问题，origin.y 不易控制 ,看源码是原生AutoLayout布局的甚是纠结

DreamBuddy commented 7 years ago

@summertian4 找个了个笨方法，直接上代码吧是Masonry布局的.在View的子类中，重写layoutSubviews,这样纸以后 CustomView会充满全屏，然后里边的布局就自己弄哈

-(void)layoutSubviews{
    [super layoutSubviews];

    // 状态栏高度
    CGFloat statusHeight = [UIApplication sharedApplication].statusBarFrame.size.height;
    // 导航栏高度
    CGFloat naviHeight =  self.viewController.navigationController.navigationBar.frame.size.height;
    // tabbar高度
    CGFloat tabbarHeight = self.viewController.tabBarController.tabBar.frame.size.height;
    // view 高度
    CGFloat viewHeight = self.viewController.view.frame.size.height;

    CGFloat fullScreenHeight = viewHeight - naviHeight - statusHeight - tabbarHeight;
    if (self.height != fullScreenHeight) {
        [self mas_makeConstraints:^(MASConstraintMaker *make) {
            make.height.mas_equalTo(fullScreenHeight);
        }];
    }
}

今天又发现如果是包含了刷新控件，比如说 MJRefresh 需要 verticalOffsetForEmptyDataSet 加上 header造成的偏移量 self.scrollview.mj_header.height ，再就是如果是 UICollectionView的话再加 7.5的偏移量

summertian4 commented 7 years ago

我暂时给 DZNEmptyDataSet 加了一个 category，添加一个计算偏移量的方法。

gaokewei commented 7 years ago

我想问下如何在非首次刷新检测是否为空数据加载未完成显示占位图的情况

dzenbot / DZNEmptyDataSet

Custom position of elements #313