How To Start Viber Call From An Android App?

I am developing an Android application, and besides other functionalities it has to be able to place a call using Viber. I tried to use solution for Skype but without success. Erro

Solution 1:

This problem was resolved with this piece of code:

publicvoidcall(String dialNumber) {
    try{
    IntentcallIntent=newIntent("android.intent.action.CALL_PRIVILEGED");
    callIntent.setData(Uri.parse("tel:" + dialNumber));
    startActivity(callIntent);
    }
    catch (Exception e) {
        IntentcallIntent=newIntent(Intent.ACTION_CALL);
        callIntent.setData(Uri.parse("tel:" + dialNumber));
        startActivity(callIntent);
    }
}

where this was crucial: "android.intent.action.CALL_PRIVILEGED"

After applying this, new window was opened offering for call to be made by all possible means for placing call - in this particular case, they were Dialer and Viber and Skype (or any other method added later).

Solution 2:

If you want to start Viber explicitly to call specific phone number:

IntentlocalIntent4=newIntent("com.viber.voip.action.CALL");
localIntent4.setType("vnd.android.cursor.item/vnd.com.viber.voip.call");
localIntent4.setData(Uri.parse("tel:" + phone_number_to_call));
localIntent4.putExtra("external_call", true);
localIntent4.putExtra("contact_id", -1L);
startActivity(localIntent4);

All you need to do is to initialize variable phone_number_to_call as you wish.