如何划分在多个页面视图内容。 [英] How to divide the webview content in multiple pages
问题描述
我必须从Android上使用PdfDocument我web视图创建PDF。
的https://developer.android.com/intl/ru/reference/android/graphics/pdf/PdfDocument.html
在PDF创建很好,但它只有一个页文档。
I have to create PDF from my webView using PdfDocument on Android. https://developer.android.com/intl/ru/reference/android/graphics/pdf/PdfDocument.html The pdf is created well but it is only one page document.
// create a new document
PdfDocument document = new PdfDocument();
// create a page description
PageInfo pageInfo = new PageInfo.Builder(width,
height, 1).create();
// start 1st page
Page page = document.startPage(pageInfo);
// draw something on the page
View content = myWebview;
content.draw(page.getCanvas());
// finish 1st page
document.finishPage(page);
// start 2nd page
Page page = document.startPage(pageInfo);
// draw something on the page
View content = someOtherWebview;
content.draw(page.getCanvas());
// finish 2nd page
document.finishPage(page);
// and so on...
FileOutputStream out;
try {
out = new FileOutputStream(fileNameWithPath, false);
// write the document content
document.writeTo(out);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
// close the document
document.close();
我怎么可以把在网页视图内容?
How can I divide webview content in pages?
推荐答案
我创建一个Android应用程序,读起来就像一本书的文件,但不是砍它,同时显示一个网页,我隐藏所有,但一个该节,然后就显示整个文件。
I am creating an android app that reads a file like a book, but instead of chopping it up and displaying one page at a time, I hide all but one of the sections and then just display the entire file.
所以,也许你可以使用类似的技术是这样的:
结果
1 您可以隐藏所有的CSS结果的网页流量的
2。显示一个部分结果
3 的写入到PDF结果
4。隐藏previous部分结果
5。显示下一等结果。
So perhaps you could use a similar technique something like:
1. You can hide all of the webview with css
2. reveal one section
3. write to the PDF
4. hide the previous section
5. reveal the next etc.
在您的WebView阅读你text.html源文件,包裹每一页在这样的div标签:
In your text.html source file read by your webview, wrap each page in div tags like this:
<div id="page1" style="display:hidden;">
Page 1 text
</div>
<div id="page2" style="display:hidden;">
Page 2 text
</div>
<div id="page3" style="display:hidden;">
Page 3 text
</div>
在你的Java:
//First you have to enable Javascript
webView.getSettings().setJavaScriptEnabled(true);
//Then run this javascript which will find the first page and reveal it
webView.loadUrl("javascript:document.getElementById('page"+ 1 +"').style.display ='block';");
//reload Webview
webView.loadUrl("C:\Desktop\text.html");
//write to PDF
//repeat for page 2
希望这有助于!
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