ios-根据设备方向加载pdf并跳转到页面

Question

Here is the situation - my client has a pdf document, in two versions, portrait and landscape layout. He wanted me to write an application which would load the pdf based on device orientation, and when the orientation changes, the other corresponding version would get displayed.

Here is the use case

• start device in landscape mode - landscape.pdf is loaded

• device changes orientation to portrait - portrait.pdf is loaded and shown

• device changes orientation to landscape - landscape.pdf is shown

This is all easy to do, but the real culprit is the fact that pdf files have more than one page, and when device changes orientation while displaying some other page than first, it would need to jump directly to that page.

My question is whether this is possible in iOS? Can I load a PDF and jump directly to a specific page?

Answer 1

如果使用UIWebView加载PDF，并且有滚动视图，则可以指定位置。