Limitations on opening pdf file in Android
It could be the file failed to be interpret by the Android PDF viewer app. Have you tried to copy/download the exact same file to your Android phone and open from there?
Also, I'd suggest to use IntentChooser for launching the PDF viewer, just to play safe on no PDF viewer installed / giving user option to choose app:
Intent intent = new Intent();
intent.setDataAndType(Uri.parse(url), "application/pdf");
Intent chooserIntent = Intent.createChooser(intent, "Open Report");
startActivity(chooserIntent);
I found a workaround to view my PDF on my Android application (but does not allow me to download it after show on the application). If I open my PDF using Google Docs I can open it with my Intent.
This is what I had to add before my url:
https://docs.google.com/gview?embedded=true&url=
so the final url will be like:
https://docs.google.com/gview?embedded=true&url=https://myUrl.pdf
Here is the whole code I am using right now:
String url= "https://docs.google.com/gview?embedded=true&url=https://url.pdf";
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
startActivity(intent);
But it is still not enough, because I would like to open it without need of using a third party application. Also, opening PDF with Google Docs is slow and I have to wait too much until the PDF is finally opened.
If anyone knows how to open it with native Android please let me know.
What happens if I do not open it with Google Docs?
With the same code, but just using my url, instead the added Google Docs url, Android let me choose between two applications: Adobe Acrobat Reader and Google Chrome.
If I open it with Google Chrome it download the PDF but it is not opened automatically.
If I open it with Adobe Acrobat Reader, it gives to me the following error:
The PDF cannot be shown (it cannot be opened)