Show PDF in Android

Question

In my onCreate() I do this check:

//
// check if we have a PDF viewer, else bad things happen
//
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setType(\         


        

Answer 1

Connect your phone to you PC, start Eclipse and open the LogCat. Then download a PDF file with the browser and open it. You should see a line such as (I used the HTC desire):

09-14 17:45:58.152: INFO/ActivityManager(79): Starting activity: Intent { act=android.intent.action.VIEW dat=file:///sdcard/download/FILENAME.pdf typ=application/pdf flg=0x4000000 cmp=com.htc.pdfreader/.ActPDFReader }

Have a go with an explicit intent using the component information. Docs say here:

> component -- Specifies an explicit name of a component class to use for the intent. Normally this is determined by looking at the other information in the intent (the action, data/type, and categories) and matching that with a component that can handle it. If this attribute is set then none of the evaluation is performed, and this component is used exactly as is. By specifying this attribute, all of the other Intent attributes become optional.

Downside is you will be bound to the htc reader. But you could try an implicit intent first and if that fails try the explicit intent as a fallback.

Answer 2

-Copy the following code in your activity. Call the function CopyReadAssets("File_name.pdf") from onCreate() function. Place the File_name.pdf file in assets folder.

private void CopyReadAssets(String pdfname)
{
    AssetManager assetManager = getAssets();
    InputStream in = null;
    OutputStream out = null;
    File file = new File(getFilesDir(), pdfname);
    try
    {
        in = assetManager.open(pdfname);
        out = openFileOutput(file.getName(), Context.MODE_WORLD_READABLE);
        copyFile(in, out);
        in.close();
        in = null;
        out.flush();
        out.close();
        out = null;
    } catch (Exception e)
    {
        Toast.makeText(getApplicationContext(), "Pdf Viewer not installed", Toast.LENGTH_SHORT).show();
    }
    try
    {
    Intent intent = new Intent(Intent.ACTION_VIEW);
    intent.setDataAndType(
            Uri.parse("file://" + getFilesDir() + "/"+pdfname),
            "application/pdf");

    startActivity(intent);
    }catch (Exception e) {
        // TODO: handle exception
        Toast.makeText(getApplicationContext(), "Pdf Viewer not installed" ,Toast.LENGTH_SHORT).show();
    }
}

private void copyFile(InputStream in, OutputStream out) throws IOException
{
    byte[] buffer = new byte[1024];
    int read;
    while ((read = in.read(buffer)) != -1)
    {
        out.write(buffer, 0, read);
    }
}