Objective c checking whether text field is empty

Question

Here\'s the code:

- (IBAction) charlieInputText:(id)sender {
    //getting value from text field when entered
    charlieInputSelf = [sender stringValue];

           


        

Answer 1

-(void)insert{

    if ([_nameofView  isEqual: @""]) {
        UIAlertController* alert = [UIAlertController alertControllerWithTitle:@"Alert"
                                                                       message:@"Fill the Name Field First."
                                                                preferredStyle:UIAlertControllerStyleAlert];

        UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault
                                                              handler:^(UIAlertAction * action) {}];

        [alert addAction:defaultAction];
        [self presentViewController:alert animated:YES completion:nil];



    }
    else if ([_detailofview  isEqual: @""]){

        UIAlertController* alert = [UIAlertController alertControllerWithTitle:@"Alert"
                                                                       message:@"Fill the Details Field First."
                                                                preferredStyle:UIAlertControllerStyleAlert];

        UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault
                                                              handler:^(UIAlertAction * action) {}];

        [alert addAction:defaultAction];
        [self presentViewController:alert animated:YES completion:nil];

    }
    else{
        UIAlertController* alert = [UIAlertController alertControllerWithTitle:@"Alert"
                                                                       message:@"Data Inserted Successfully."
                                                                preferredStyle:UIAlertControllerStyleAlert];

        UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault
                                                              handler:^(UIAlertAction * action) {}];

        [alert addAction:defaultAction];
        [self presentViewController:alert animated:YES completion:nil];

    }
}