Add image to UITextField in Xcode?

UITextField has a rightView property, if you have image like this- then You can easly set ImageView object to rightView:

UITextField *myTextField = [[UITextField alloc] init];

myTextField.rightViewMode = UITextFieldViewModeAlways;
myTextField.rightView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"downArrow.png"]];