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View PDFs on Android

Irritatingly, my G1 won't show me PDFs so I've made the Google Docs PDF viewer which will load PDFs on the web up in Google Docs. Google Docs has the useful ability to display PDFs in web browsers without any Adobe software and works (mostly) on Android.

This was very easy to put together as an Android activity. First its necessary to register the application as handling PDFs from the web. This is done via the intent-filter declaration in the manifest:

   intent-filter
      action android:name="android.intent.action.VIEW"/
      data android:scheme="http" android:mimeType="application/pdf"/
      category android:name="android.intent.category.DEFAULT"/
      category android:name="android.intent.category.BROWSABLE"/
   /intent-filter

Second, the activity opens up the browser to Google Docs pointing to the PDF.

   Intent intent = new Intent();
   intent.setAction(getIntent().getAction());
   intent.setData(Uri.parse(
    "http://docs.google.com/gview?embedded=true&url=" + 
    percentEncodeForQuery(getIntent().getData().toString())));

   startActivity(intent);

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