Share the code UITextField (Validation) with a special restriction in the iOS input box)

Share the code UITextField (Validation) with a special restriction in the iOS input box)

// Personal summary. You are welcome to add or modify

# Import
 
  
Typedef enum {VALIDATION_TYPE_NUM_VALIDATED = 0, // number verification = 1, // ID card verification = 2, // mobile phone number verification = 3, // email} ValidationType; @ interface UITextField (Validation) -(void) setValidationType :( ValidationType) validationType;-(NSString *) errorMessage;-(void) limitTextLength :( int) length; @ end
 

# Import "UITextField + Validation. h" # import
 
  
# Import
  
   
Static NSString * identifier = @ "identifier"; static NSString * kLimitTextErrorMessageKey = @ "kLimitTextErrorMessageKey"; @ implementation UITextField (Validation)-(void) resetTextfieldValidation {identifier (self, (_ bridge const void *) (kLimitTextErrorMessageKey), nil, OBJC_ASSOCIATION_RETAIN_NONATOMIC);}-(void) setValidationType :( ValidationType) validationType {[self AddTarget: self action: @ selector (resetTextfieldValidation) forControlEvents: UIControlEventEditingDidBegin]; self. keyboardType = UIKeyboardTypeDefault; if (validationType = VALIDATION_TYPE_NUM_VALIDATED) {[self limitTextOnlyNumber]; self. keyboardType = UIKeyboardTypeNumberPad;} else if (validationType = VALIDATION_TYPE_EMAIL_VALIDATED) {[self limitTextOnlyEmail]; self. keyboardType = UIKeyboardTyp EEmailAddress;} else if (validationType = VALIDATION_TYPE_MOBILE_PHONE_VALIDATED) {[self limitTextOnlyPhone]; self. keyboardType = UIKeyboardTypePhonePad;} else if (validationType = VALIDATION_TYPE_ID_CARD_VALIDATED) {[self limitTextOnlyIDCard];} [self limitTextNoSpace];}-(NSString *) errorMessage {NSString * str = objc_getAssociatedObject (self, (_ bridge const void *) (kLimitTextErrorMessageKey); if (Str) {return str;} return nil;} # pragma mark-Limit Text Length-(void) limitTextLength :( int) length {objc_setAssociatedObject (self, (_ bridge const void *) (kLimitTextMaxLengthKey), [NSNumber numberWithInt: length], numeric); [self addTarget: self action: @ selector (operator :) forControlEvents: UIControlEventEditingChanged];} -(void) textFieldTextLengthLimit :( Id) sender {NSNumber * maxLengthNumber = objc_getAssociatedObject (self, (_ bridge const void *) (kLimitTextMaxLengthKey); int maxLength = [maxLengthNumber intValue]; if (self. text. length> maxLength) {self. text = [self. text substringToIndex: maxLength] ;}# pragma mark-Limit Text Only Number-(void) limitTextOnlyNumber {[self addTarget: self action: @ selector (textFieldTextNumberLimit :) forControlEvents: U IControlEventEditingChanged];}-(void) textFieldTextNumberLimit :( id) sender {if (! Self. text. length) {[self resetTextfieldValidation]; return;} NSString * regexNum = @ "^ \ d * $"; NSPredicate * regexNumPredicate = [NSPredicate predicateWithFormat: @ "self matches % @", regexNum]; if ([regexNumPredicate evaluateWithObject: self. text] = YES) {} else {self. text = [self. text substringFromIndex: self. text. length] ;}# pragma mark-Limit Text Only Phone-(void) limitTextOnlyPhone {[self addTarget: s Elf action: @ selector (textFieldTextPhoneLimit :) forControlEvents: limit]; [self limitTextLength: 11]; [self limitTextOnlyNumber];}-(void) handle :( id) sender {if (! Self. text. length) {[self resetTextfieldValidation]; return;} // NSString * regex = @ "^ (13 [0-9]) | (147) | (15 [^ 4, \ D]) | (18 [0, 5-9]) \ d {8} $ "; NSString * regex = @ "^ 1 \ d {10} $"; NSPredicate * regexPredicate = [NSPredicate predicateWithFormat: @ "self matches % @", regex]; if ([regexPredicate evaluateWithObject: self. text] = YES) {self. text = [self. text substringToIndex: self. text. length]; [self resetTextfieldValida Tion];} else {self. text = [self. text substringToIndex: self. text. length]; objc_setAssociatedObject (self, (_ bridge const void *) (kLimitTextErrorMessageKey), @ "enter the correct phone number", OBJC_ASSOCIATION_RETAIN_NONATOMIC );}} # pragma mark-Limit Text For Email-(void) limitTextOnlyEmail {[self addTarget: self action: @ selector (textFieldTextForEmailLimit :) forControlEvents: UIControlEventEditingDidEnd];}-(void) textField TextForEmailLimit :( id) sender {if (! Self. text. length) {[self resetTextfieldValidation]; return;} NSString * regex = @ "^ [a-zA-Z0-9] [\ w \\. -] * [a-zA-Z0-9] @ [a-zA-Z0-9] [\ w \\. -] * [a-zA-Z0-9] \. [a-zA-Z] [a-zA-Z \.] * [a-zA-Z] $ "; NSPredicate * regexPredicate = [NSPredicate predicateWithFormat: @" self matches % @ ", regex]; if ([regexPredicate encoding: self. text] = YES) {[self resetTextfieldValidation];} else {objc_setAssociatedObject (self, (_ Bridge const void *) (kLimitTextErrorMessageKey), @ "Mailbox format error", OBJC_ASSOCIATION_RETAIN_NONATOMIC) ;}# pragma mark-Limit Text For IDCard-(void) limitTextOnlyIDCard {[self addTarget: self action: @ selector (role :) forControlEvents: role]; [self limitTextLength: 18];}-(void) textFieldTextForIDCardLimit :( id) sender {if (! Self. text. length) {[self resetTextfieldValidation]; return;} // NSString * regex = @ "^ (4 \ d {12 }(?: \ D {3 })?) $ "; NSString * regex = @" ^ ([1-9] \ d {7} (0 \ d) | (1 [0-2]) ([0 | 1 | 2] \ d) | 3 [0-1]) \ d {3 }) | ([1-9] \ d {5} [1-9] \ d {3} (0 \ d) | (1 [0-2]) ([0 | 1 | 2] \ d) | 3 [0-1]) \ d {3} ([0-9] | X) $ "; NSPredicate * regexPredicate = [NSPredicate predicateWithFormat: @" self matches % @ ", regex]; if ([regexPredicate evaluateWithObject: self. text] = YES) {[self resetTextfieldValidation];} else {objc_setAssociatedObject (self, (_ bridge const void *) (kLimitTextErrorMessageKey), @ "Incorrect ID card format ", parameters) ;}# pragma mark-Limit Text NoSpace-(void) limitTextNoSpace {[self addTarget: self action: @ selector (textFieldTextNoSpaceLimit :) forControlEvents: parameters];}-(void) textFieldTextNoSpaceLimit :( id) sender {self. text = [self noSpaceString: self. text];}-(NSString *) noSpaceString :( NSString *) str {if (str. length) {return [str stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceCharacterSet];} return str ;}@ end