使用Android-Pdf-Viewer-Library开源框架

下面的框架是Android-Pdf-Viewer-Library这个开源框架的使用方法，在github中找到的，是一些比较简单的英语，应该可以看懂。

This is a packaging of the project "Android PDF Viewer" (http://andpdf.sourceforge.net/) into a reusable library to make PDF viewing easier from within your Android application.

Consistent with the Android PDF Viewer project, the licensing for the PdfViewer project is LGPL

Quickstart incorporating a PDF viewing activity into your project:

1) Add PdfViewer.jar into your project's build path

2) Copy the following drawable resources from PdfViewer/res/drawable into YourProject/res/drawable
left_arrow.png
right_arrow.png
zoom_in.png
zoom_out.png

3) Copy the following layout resources from PdfViewer/res/layout into YourProject/res/layout
dialog_pagenumber.xml
pdf_file_password.xml

4) Derive your PDF activity from net.sf.andpdf.pdfviewer.PdfViewerActivity

5) Using the default drawables and layouts:
public int getPreviousPageImageResource() { return R.drawable.left_arrow; }
public int getNextPageImageResource() { return R.drawable.right_arrow; }
public int getZoomInImageResource() { return R.drawable.zoom_in; }
public int getZoomOutImageResource() { return R.drawable.zoom_out; }
public int getPdfPasswordLayoutResource() { return R.layout.pdf_file_password; }
public int getPdfPageNumberResource() { return R.layout.dialog_pagenumber; }
public int getPdfPasswordEditField() { return R.id.etPassword; }
public int getPdfPasswordOkButton() { return R.id.btOK; }
public int getPdfPasswordExitButton() { return R.id.btExit; }
public int getPdfPageNumberEditField() { return R.id.pagenum_edit; }

6) Invoke your PdfViewActivity derived with the following code:
Intent intent = new Intent(this, YourPdfViewerActivity.class);
intent.putExtra(PdfViewerActivity.EXTRA_PDFFILENAME, "PATH TO PDF GOES HERE");
startActivity(intent);