Simple input field in ios

gistfile1.txt

NSString *roboto_font = @"Roboto-Regular";
UITextField *input_login = [[UITextField alloc] initWithFrame:CGRectMake(0, 0, 320, 20)];
input_login.alpha = 0.1f;
input_login.textAlignment = NSTextAlignmentCenter;
input_login.textColor = [UIColor whiteColor];
input_login.layer.shadowColor = [[UIColor blackColor] CGColor];
input_login.layer.shadowOffset = CGSizeMake(1.0f, 1.0f);
input_login.layer.shadowOpacity = 1.0f;
input_login.layer.shadowRadius = 1.0f;
input_login.font = [UIFont fontWithName:roboto_font size:15];
input_login.attributedPlaceholder =
[[NSAttributedString alloc] initWithString:value
                                attributes:@{
                                             NSForegroundColorAttributeName: [UIColor whiteColor],
                                             NSFontAttributeName : [UIFont fontWithName:roboto_font size:15.0]
                                             }
 ];

[field addSubview:input_login];