Android-Code to Implement PDF Viewer

Question

Here i need to use Pdf-Viewer in my app.i took many API as a reference but still stucking up in viewing Pdf files from SDCARD. here my code

`First.java

public class First extends ListActivity {
String[] pdflist;
File[] imagelist;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    //setContentView(R.layout.main);

    File images = Environment.getExternalStorageDirectory();
    imagelist = images.listFiles(new FilenameFilter() {
        public boolean accept(File dir, String name) {
            return ((name.endsWith(".pdf")));
        }
    });
    pdflist = new String[imagelist.length];
    for (int i = 0; i < imagelist.length; i++) {
        pdflist[i] = imagelist[i].getName();
    }
    this.setListAdapter(new ArrayAdapter<String>(this,
            android.R.layout.simple_list_item_1, pdflist));
}
protected void onListItemClick(ListView l, View v, int position, long id) {
    super.onListItemClick(l, v, position, id);
    String path = imagelist[(int) id].getAbsolutePath();
    openPdfIntent(path);
}
private void openPdfIntent(String path) {
    try {
        final Intent intent = new Intent(First.this, Second.class);
        intent.putExtra(PdfViewerActivity.EXTRA_PDFFILENAME, path);
        startActivity(intent);
    } catch (Exception e) {
        e.printStackTrace();
    }
}}

Second.java

public class Second extends PdfViewerActivity {

@Override
public int getPreviousPageImageResource() {
    // TODO Auto-generated method stub
    return R.drawable.left_arrow;
}

@Override
public int getNextPageImageResource() {
    // TODO Auto-generated method stub
    return R.drawable.right_arrow;
}

@Override
public int getZoomInImageResource() {
    // TODO Auto-generated method stub
     return R.drawable.zoom_in;
}

@Override
public int getZoomOutImageResource() {
    // TODO Auto-generated method stub
    return R.drawable.zoom_out;
}

@Override
public int getPdfPasswordLayoutResource() {
    // TODO Auto-generated method stub
    return R.layout.pdf_file_password;  
    }

@Override
public int getPdfPageNumberResource() {
    // TODO Auto-generated method stub
     return R.layout.dialog_pagenumber;
}

@Override
public int getPdfPasswordEditField() {
    // TODO Auto-generated method stub
    return R.id.etPassword;
}

@Override
public int getPdfPasswordOkButton() {
    // TODO Auto-generated method stub
     return R.id.btOK;
}

@Override
public int getPdfPasswordExitButton() {
    // TODO Auto-generated method stub
     return R.id.btExit;
}

@Override
public int getPdfPageNumberEditField() {
    // TODO Auto-generated method stub
    return R.id.pagenum_edit;
}}

And i used Android-Pdf-Reader-Library project.in my emulator Dialogue as"Loading pdf file" is appearing after clicking on Pdf files. And Can you anyone tell me how to Change the Pdf pages by swiping with finger??

Did you find any solution for curl/flip pages with using this library?! — Dr.jacky, Jun 13 '15 at 07:13

score 0 · Answer 1 · answered Jul 16 '12 at 08:06

0

you can open pdf on google doc

    WebView webviewer = new WebView(this);
    webviewer.getSettings().setJavaScriptEnabled(true);
    webviewer.getSettings().setPluginsEnabled(true);
    setContentView(webviewer);

    webviewer.loadUrl("http://docs.google.com/gview?embedded=true&url=PDF_url/fileName.pdf");
    setContentView(webviewer);

To open the PDF in application like quick pdf or adobe pdf reader:

    Uri path = Uri.fromFile(file);
    Intent intent = new Intent(Intent.ACTION_VIEW);
    intent.setDataAndType(path, "application/pdf");
    intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    startActivity(intent);

answered Jul 16 '12 at 08:06

Furqi

2,403
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thanks for immediate reply.In my app i don't need to open PDF in WebView bro. Help me to open PDF in above Code. – Joseph Martin Jul 16 '12 at 08:23
if you dont want to open on webview simply open on readers using 2nd code which i gave u. – Furqi Jul 16 '12 at 09:30
I have tried that too.what shuld i want to give as a parameter(file) in Uri path? – Joseph Martin Jul 16 '12 at 10:34
You have to give path where your pdf file saved in your sd card. final File file = new File( Environment.getExternalStorageDirectory() +"mypdf.pdf"); – Furqi Jul 16 '12 at 10:39
@furqi...Thnks its working perfectly..is it will open the Hyperlink in the PDF pages?? – Joseph Martin Jul 17 '12 at 06:11

score 0 · Answer 2 · answered Apr 28 '20 at 07:59

You can use AndroidPdfViewer library.

Add this dependency in your Grade:

implementation 'com.github.barteksc:android-pdf-viewer:2.8.2'

Add PDFView in activity_main.xml

<com.github.barteksc.pdfviewer.PDFView
    android:id="@+id/pdfView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/>

Add Load a PDF file in MainActivity.java

pdfView.fromUri(Uri)

or

pdfView.fromFile(File)

or

pdfView.fromBytes(byte[])

or

pdfView.fromStream(InputStream) // stream is written to bytearray - native code cannot use Java Streams

or

pdfView.fromSource(DocumentSource)

or

pdfView.fromAsset(String)
    .pages(0, 2, 1, 3, 3, 3) // all pages are displayed by default
    .enableSwipe(true) // allows to block changing pages using swipe
    .swipeHorizontal(false)
    .enableDoubletap(true)
    .defaultPage(0)
    // allows to draw something on the current page, usually visible in the middle of the screen
    .onDraw(onDrawListener)
    // allows to draw something on all pages, separately for every page. Called only for visible pages
    .onDrawAll(onDrawListener)
    .onLoad(onLoadCompleteListener) // called after document is loaded and starts to be rendered
    .onPageChange(onPageChangeListener)
    .onPageScroll(onPageScrollListener)
    .onError(onErrorListener)
    .onPageError(onPageErrorListener)
    .onRender(onRenderListener) // called after document is rendered for the first time
    // called on single tap, return true if handled, false to toggle scroll handle visibility
    .onTap(onTapListener)
    .onLongPress(onLongPressListener)
    .enableAnnotationRendering(false) // render annotations (such as comments, colors or forms)
    .password(null)
    .scrollHandle(null)
    .enableAntialiasing(true) // improve rendering a little bit on low-res screens
    // spacing between pages in dp. To define spacing color, set view background
    .spacing(0)
    .autoSpacing(false) // add dynamic spacing to fit each page on its own on the screen
    .linkHandler(DefaultLinkHandler)
    .pageFitPolicy(FitPolicy.WIDTH) // mode to fit pages in the view
    .fitEachPage(false) // fit each page to the view, else smaller pages are scaled relative to largest page.
    .pageSnap(false) // snap pages to screen boundaries
    .pageFling(false) // make a fling change only a single page like ViewPager
    .nightMode(false) // toggle night mode
    .load();

If you are using ProGuard, don't forget to add below line:

-keep class com.shockwave.**

Android-Code to Implement PDF Viewer

2 Answers2

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