First off, sorry if this has been asked but I cannot find it. I am downloading documents in my app from a remote resource. Once the document is downloaded, I want to open it for the user. What I want to know is how do I check if they have an application to handle Pdf or Tiff and launch it in the default application for them?
Thank you.
edit
here is part of the solution:
Intent viewDoc = new Intent(Intent.ACTION_VIEW);
viewDoc.setDataAndType(
Uri.fromFile(getFileStreamPath("test.pdf")),
"application/pdf");
PackageManager pm = getPackageManager();
List<ResolveInfo> apps =
pm.queryIntentActivities(viewDoc, PackageManager.MATCH_DEFAULT_ONLY);
if (apps.size() > 0)
startActivity(viewDoc);
Step #1: Create an
ACTION_VIEW
Intent
, usingsetDataAndType()
to provide aUri
to your downloaded file (e.g.,Uri.fromFile()
) and the MIME type of the content (e.g.,application/pdf
).From there, you have two options:
Step #2a: Use
PackageManager
andqueryIntentActivities()
with thatIntent
. If it returns a zero-length list, you know there are no candidates, and therefore can disable any buttons, menu choices, or whatever that would lead to callingstartActivity()
on thatIntent
.or
Step #2b: Just call
startActivity()
when the user wants to view it, and catch the exception that occurs when there are no supported apps installed. This is simpler than #2a above, but not quite as user-friendly.