How to Read PDF in Android?

How to Read PDF in Android stored in SDCard 开发者_开发问答??

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Here's some code showing how to open a pdf file to read:

private void openBook() {
     File file = new File(mRealPath);
     Uri path = Uri.fromFile(file);
     Intent intent = new Intent(Intent.ACTION_VIEW);
     intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
     intent.setDataAndType(path, getString(R.string.application_type));
     try {
         startActivity(intent);
     } catch (ActivityNotFoundException e) {
         Toast.makeText(FirstTab.this, 
         getString(R.string.no_application_found), 
         Toast.LENGTH_SHORT).show();
     }
}