I would like my android application to display a dialog that allows the user to open a file in another application or save the file much like the UIDocumentInteractionController for iOS that displays an "Open in..." dialog for a particular document. Does this not exist in the Android SDK?
After some trial and error, I managed to find a reasonable solution, but not the equivalent to the iOS UIDocumentInteractionController, that uses minimal custom activity code, which just uses an ACTION_VIEW intent.:
private void showDialogForFile(File file, String extension) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setType(MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension));
Uri uri = FileProvider.getUriForFile(getBaseContext(),
getApplicationContext().getPackageName() + ".provider", file);
intent.setData(uri);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
startActivity(intent);
}
I also needed to add the following to my Android manifest:
<provider
android:authorities="${applicationId}.fileprovider"
android:exported="false"
android:grantUriPermissions="true"
android:name="android.support.v4.content.FileProvider">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/file_paths" />
</provider>
And then add to the resource file res/xml/file_paths.xml
<?xml version='1.0' encoding='utf-8'?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<external-path name="external_files" path="." />
</paths>