Objective C：如何设置子视图在当前可见帧中显示？（UI表格视图）

发布于 2024-11-14 19:40:21 字数 448 浏览 1 评论 0原文

我有一个 UITableViewController 并打算在单击按钮（即刷新按钮）时向其添加子视图。我的代码如下：

//set up loading page
self.myLoadingPage = [[LoadingPageViewController alloc]init ];
self.myLoadingPage.view.frame = self.view.bounds;
self.myLoadingPage.view.hidden = NO;

[self.view addSubview:self.myLoadingPage.view];

我的问题是如何设置此子视图位于当前可见帧中？特别是对于 UITableviewcontroller，我可能会在向下滚动到第 100 个单元格后单击刷新按钮，对于本示例，我的子视图仍将添加到表视图的顶部（从单元格 1 开始）。有什么办法可以解决这个问题吗？

原文

I have a UITableViewController and intend to add a subview to it when I click a button i.e. refresh button. My code is as follows:

//set up loading page
self.myLoadingPage = [[LoadingPageViewController alloc]init ];
self.myLoadingPage.view.frame = self.view.bounds;
self.myLoadingPage.view.hidden = NO;

[self.view addSubview:self.myLoadingPage.view];

My question is how can I set this subview to be in the current visible frame? especially for a UITableviewcontroller where I might click on the refresh button after scrolling down to the 100th cell, for this example, my subview will still be added right at the top of the table view (starting from cell 1). Is there any way to resolve this?

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在你怀里撒娇 2024-11-21 19:40:21

只需移动线条，以便在将其设为子视图后设置框架

self.myLoadingPage = [[LoadingPageViewController alloc]init ];
self.myLoadingPage.view.hidden = NO;
[self.view addSubview:self.myLoadingPage.view];
self.myLoadingPage.view.frame = self.view.bounds;

Just move the lines around so that you set the frame after you made it a subview

self.myLoadingPage = [[LoadingPageViewController alloc]init ];
self.myLoadingPage.view.hidden = NO;
[self.view addSubview:self.myLoadingPage.view];
self.myLoadingPage.view.frame = self.view.bounds;

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