Share via WhatsApp for Android

WhatsAppShare.java

class WhatsAppShare extends ShareManager
{
    public WhatsAppShare(Context context)
    {
      super(context);
    }
    
    public void shareViaWhatsApp(String msg)
    {
        Intent whatsAppIntent = new Intent(Intent.ACTION_SEND);
        whatsAppIntent.setType("text/plain");
        whatsAppIntent.setPackage("com.whatsapp");
        if (whatsAppIntent != null) {
            whatsAppIntent.putExtra(Intent.EXTRA_TEXT, msg);//
            startActivity(Intent.createChooser(whatsAppIntent, "Share with"));
        } else {
            Toast.makeText(this, "WhatsApp not Installed", Toast.LENGTH_SHORT)
                    .show();
        }
    }

}