AlertController With Textfields to login Validate...

AlertController With Textfields to login Validate...

Storyboard:

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController

- (IBAction)loginButtonTapped:(id)sender;

@end

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

- (IBAction)loginButtonTapped:(id)sender {

    

    UIAlertController * alertController = [UIAlertController alertControllerWithTitle: @"Login"

                                                                              message: @"Input username and password"

                                                                       preferredStyle:UIAlertControllerStyleAlert];

  

    [alertController addTextFieldWithConfigurationHandler:^(UITextField *textField) {

        textField.placeholder = @"name";

        textField.textColor = [UIColor blueColor];

        textField.clearButtonMode = UITextFieldViewModeWhileEditing;

        textField.borderStyle = UITextBorderStyleRoundedRect;

    }];

    [alertController addTextFieldWithConfigurationHandler:^(UITextField *textField) {

        textField.placeholder = @"password";

        textField.textColor = [UIColor blueColor];

        textField.clearButtonMode = UITextFieldViewModeWhileEditing;

        textField.borderStyle = UITextBorderStyleRoundedRect;

        textField.secureTextEntry = YES;

    }];

    

    UIAlertAction *loginAction = [UIAlertAction actionWithTitle:@"LOGIN" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {

        NSArray * textfields = alertController.textFields;

        UITextField * namefield = textfields[0];

        UITextField * passwordfiled = textfields[1];

        NSLog(@"%@:%@",namefield.text,passwordfiled.text);

        

        if ([namefield.text  isEqual: @"ravindar"] & [passwordfiled.text  isEqual: @"ravindar"]) {

            [alertController dismissViewControllerAnimated:YES completion:nil];

            

            // Write Code here to do whatever after Succesfull Login.....

            

        }else{

            [self presentViewController:alertController animated:YES completion:nil];

        

//            [alertController setTitle:@"Invalid Login"];

//            [alertController setMessage:@"Enter Correct Username or Password"];

            

            /* Above default Title & message is Present bt Over it added a View of label */

            UILabel *alertLbl = [[UILabel alloc]initWithFrame:CGRectMake(8, 8, 250, 55)];

            alertLbl.backgroundColor = [UIColor whiteColor];

            alertLbl.numberOfLines = 0;

            alertLbl.textAlignment = 1; //From Left 0, middle 1, Rught 2

            alertLbl.text = @"Enter Correct Username or Password";

            alertLbl.textColor = [UIColor redColor];

            [alertController.view addSubview:alertLbl];

            

            alertController.view.tintColor = [UIColor redColor]; // Action Title Color

        }

        

    }];

     [alertController addAction:loginAction];

     [self presentViewController:alertController animated:YES completion:nil];

//     loginAction.enabled = NO;

}

@end

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