We have the following code:
PackageManager packageManager = context.getPackageManager();
Intent testIntent = new Intent(Intent.ACTION_VIEW);
testIntent.setType("application/pdf");
List<ResolveInfo> list =
packageManager.queryIntentActivities(testIntent,
PackageManager.MATCH_DEFAULT_ONLY);
int pdfViewerCount = list.size();
if (pdfViewerCount == 0) {
<print nasty message>
}
For some reason, on an HTC Evo, this code returns zero for
pdfViewerCount when only the default PDF viewer is installed. Here is
the default viewer:
Activity Resolver Table:
Full MIME Types:
application/pdf:
45f9e688 com.htc.pdfreader/.ActPDFReader filter 45f819f0
Base MIME Types:
application:
45f9e688 com.htc.pdfreader/.ActPDFReader filter 45f819f0
Schemes:
file:
45f9e688 com.htc.pdfreader/.ActPDFReader filter 45f819f0
content:
45f9e688 com.htc.pdfreader/.ActPDFReader filter 45f819f0
Non-Data Actions:
android.intent.action.SEARCH:
45f9e688 com.htc.pdfreader/.ActPDFReader filter 45f76eb0
android.intent.action.MAIN:
45f9e688 com.htc.pdfreader/.ActPDFReader filter 45f952c0
45f696f8 com.htc.pdfreader/.MyFilePickerActivity filter
45f64d50
MIME Typed Actions:
android.intent.action.VIEW:
45f9e688 com.htc.pdfreader/.ActPDFReader filter 45f819f0
Receiver Resolver Table:
Schemes:
file:
45f3ef78 com.htc.pdfreader/.MediaBroadcastReceiver filter
45f3d1b0
Packages:
Package [com.htc.pdfreader] (45fab438):
userId=10077 gids=[]
sharedUser=null
pkg=Package{46275e58 com.htc.pdfreader}
codePath=/system/app/PDFViewer.apk
resourcePath=/system/app/PDFViewer.apk
dataDir=/data/data/com.htc.pdfreader
targetSdk=8
supportsScreens=[medium, large, small, resizeable, anyDensity]
timeStamp=1281017266000
signatures=PackageSignatures{45fb6710 [45fb1780]}
permissionsFixed=false haveGids=true
pkgFlags=0x1 installStatus=1 enabled=0
grantedPermissions:
android.permission.MOUNT_UNMOUNT_FILESYSTEMS
Registered ContentProviders:
[com.htc.pdfreader.PdfSuggestionProvider]: Provider{45f47660
com.htc.pdfreader.PdfSuggestionProvider}
Why would this viewer not be found???
(The meaning of MATCH_DEFAULT_ONLY is unclear to me, but it appears to
imply that only apps that would respond to a vanilla "click" on the
file in a file list should be selected. Surely the default PDF viewer
would respond to this, no?)
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