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How To Open WhatsApp App When User Click Mobile Number Button In Objective C

Open WhatsApp App When User Click Mobile Number Button

- (IBAction)TapCallWhatsApp:(UIButton *)sender
{
        NSURL *whatsappURL = [NSURL URLWithString:[NSString                                                                        stringWithFormat:@"https://api.whatsapp.com/send?phone=%@",Your Number]];

        if ([[UIApplication sharedApplication] canOpenURL: whatsappURL]) 
          {
                 [[UIApplication sharedApplication] openURL: whatsappURL];
          }
     else 
         {
                //Use form simulator...
                DisplayAlertWithParam(@"", @"WhatsApp App Not Available Please Install WhatsApp                                                             App.");
         }
}


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