Sharing image and text though whatsapp

Sharing Android Gist

try{
     shareIntent.setAction(Intent.ACTION_SEND);
    //Target whatsapp:
    shareIntent.setPackage("com.whatsapp");
    //Add text and then Image URI
    shareIntent.putExtra(Intent.EXTRA_TEXT, picture_text);
    shareIntent.putExtra(Intent.EXTRA_STREAM, imageUri);
    shareIntent.setType("image/jpeg");
    shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
    startActivity(shareIntent);
    } catch (android.content.ActivityNotFoundException ex) {
        ToastHelper.MakeShortText("Whatsapp have not been installed.");
    }