Question

Here is my code

            Uri fileUri = Uri.fromFile(file);
            Intent intent = new Intent();
            intent.setAction(Intent.ACTION_VIEW);
            intent.setData(fileUri);
            startActivity(intent);

So, it opens a file that I specify within my app. First few files I tested it on were – pdf ones and it worked just fine. And now, and I know it is complete bonkers, every time I choose anything different from pdf – it apparently tries to use a program for the pdf files to open the chosen file and gives me this message

The document cannot be opened because it is not a valid PDF document

Funny thing 🙂 Any ideas what is going on?

Answer 1

Use Intent.setType to set the mimetype of each file that you are trying to open. So that only app that can handle the particular mimetype will be opened

Edit: You can use MimeTypeMap.getMimeTypeFromExtension to get the Mimetype of the file.