Just as it happens, I struggled with almost an identical problem: I needed to share a video file. The problem is: There is now way to share an internal file. Never.
You either need a ContentProvider, or since it's a bit simpler with it, it's extension FileProvider.
First: you need to update you AndroidManifest.xml:
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="my.package.fileprovider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/file_paths" />
</provider>
This needs to be added into the <application>tag.
Then you need the XML file file_paths.xml in the Android sub-directory res/xml/
It should something like this:
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<files-path name="objects" path="objects/"/>
</paths>
And to finally trigger it, I needed to call it like this:
Uri uri = Uri.parse("content://my.package.fileprovider/" + fn);
Intent intent = new Intent(Intent.ACTION_VIEW, uri); // or parse uri each time
intent.setDataAndType(uri, "video/*"); // all video type == * - alternative: mp4, ...
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_GRANT_READ_URI_PERMISSION);
List<ResolveInfo> resInfoList = FXActivity.getInstance().getPackageManager().queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
for (ResolveInfo resolveInfo : resInfoList) {
String packageName = resolveInfo.activityInfo.packageName;
FXActivity.getInstance().grantUriPermission(packageName, uri, Intent.FLAG_GRANT_READ_URI_PERMISSION);
}
FXActivity.getInstance().startActivity(intent);
But what I needed to do prior to be able to use it like this: I needed to copy all assets to the private files dir, because the FileProvider itself has no option to access your assets (I guess you could achieve this with a custom ContentProvider, but I found way to complicated and didn't have that much time).
See this Android Developer reference on FileProvider for mor information.
My simple solution for this looks like this:
public boolean copyAssetsToStorage() throws NativeServiceException {
try {
String[] assets = getContext().getAssets().list(DIR_NAME);
if (assets == null || assets.length == 0) {
LOG.warning("No assets found in '" + DIR_NAME + "'!");
return false;
}
File filesDir = getContext().getFilesDir();
File targetDir = new File(filesDir, DIR_NAME);
if (!targetDir.isDirectory()) {
boolean b = targetDir.mkdir();
if (!b) {
LOG.warning("could not create private directory with the name '" + DIR_NAME + "'!");
return false;
}
}
for (String asset : assets) {
File targetFile = new File(targetDir, asset);
if (targetFile.isFile()) {
LOG.info("Asset " + asset + " already present. Nothing to do.");
continue;
} else {
LOG.info("Copying asset " + asset + " to private files.");
}
InputStream is = null;
OutputStream os = null;
try {
is = getContext().getAssets().open(DIR_NAME + "/" + asset);
os = new FileOutputStream(targetFile.getAbsolutePath());
byte[] buff = new byte[1024];
int len;
while ((len = is.read(buff)) > 0)
os.write(buff, 0, len);
} catch (IOException e) {
LOG.log(Level.SEVERE, e.getMessage(), e);
continue;
}
if (os != null) {
os.flush();
os.close();
}
if (is != null)
is.close();
}
return true;
} catch (IOException e) {
LOG.log(Level.SEVERE, e.getMessage(), e);
return false;
}
}
As you can see, I only support a flat hierarchy for now...
This at least did the trick for me.
Regards,
Daniel
ADDIDIONAL QUESTION: Why are you sending an Intent and not implement a simple JavaFX audio player control? This is what I did prior to the Video stuff.
