Android Question Intent Google Hangouts Help !!

Uri imUri = new Uri.Builder().scheme("imto").authority("gtalk").appendPath("username(e.g.user@googlemail.com)").build();
Intent intent = new Intent(Intent.ACTION_SENDTO, imUri);

final PackageManager packageManager = context.getPackageManager();
final Intent intent = new Intent(Intent.ACTION_SENDTO);
List<ResolveInfo> resolveInfo =
        packageManager.queryIntentActivities(intent,
                PackageManager.MATCH_DEFAULT_ONLY);

Dim i As Intent
i.Initialize("android.intent.action.SENDTO", "imto://gtalk/username")
StartActivity(i)