android - Android - PSPDFKit is there a way to know the current Zoom on the page?

Question

I am wondering if there is a way to know the zoom in the current document in order to navigate through documents but maintaining the zoom.

thanks,

Answer 1

您可以使用PSPDFKit#getZoomScale获取当前页面的缩放比例：

 fragment.getZoomScale(fragment.getPage());

然后，在加载新文档后，您可以像这样设置所需的缩放比例PSPDFFragment#zoomTo()：

 PSPDFDocument document = fragment.getDocument();
 fragment.zoomTo((int) document.getPageSize(pageToDisplay).width / 2,
                 (int) document.getPageSize(pageToDisplay).height / 2,
                 pageToDisplay, zoomScale, animationTime);   

哪里animationTime可以为 0 立即缩放而不进行动画处理。