A general UITextField category for input checking.

Whatever in which way your textField was created, just add the following methods:

For configuration: - configurationWithType:

For check: - inputCheckForceCorrect:

1. Download zip or clone the repo.
2. Drag the folder XCTextField into your project.
3. #import "UITextField+XCTextField.h"
4. Have fun.

/**
  some button action such as commit / login / register etc.
 */
- (void)checkButtonAction:(UIButton *)button {
    for (UIView *subview in self.view.subviews) {
        if ([subview isKindOfClass:[UITextField class]]) {
            [(UITextField *)subview inputCheckForceCorrect:YES];
        }
    }
}

- (void)inputCheckForceCorrect: param: flag if YES the first incorrect textField became first responder.

• XCTextFieldTypeDefault: Style None.
• XCTextFieldTypeCellphone: PRC mainland Cellphone number style. UIKeyboardTypePhonePad.
• XCTextFieldTypeEmail: Email format should be "[email protected]". UITextContentTypeEmailAddress.
• XCTextFieldTypePassword: Security text. UIKeyboardTypeASCIICapable.
• XCTextFieldTypeCAPTCHA: //@todo:
• XCTextFieldTypeCreditCard: //@todo: Luhn algorithm
• XCTextFieldTypeIDCard: 18 digital PRC resident ID card number verify. The last character was calculated base on "ISO 7064:1983.MOD 11-2" algorithm.