密码输入框
https://gitee.com/cityleaf/LYPaymentField
//
// LYSecurityField.h
// PaymentSecurityField
//
// Created by 刘宇 on 2017/8/2.
// Copyright © 2017年 刘宇. All rights reserved.
//
#import
NS_ASSUME_NONNULL_BEGIN
typedef NS_ENUM(NSUInteger, SecurityCharacterType) {
SecurityCharacterTypeSecurityDot, /// SecurityCharacterTypePlainText, /// SecurityCharacterTypeCustomImage, /// SecurityCharacterTypeHorizontalLine,/// }; typedef NS_ENUM(NSUInteger, BorderType) { BorderTypeHaveRoundedCorner,/// BorderTypeNoRoundedCorner, /// BorderTypeSeparateBox, /// BorderTypeNoBorder, /// }; @class LYSecurityField; @protocol LYPaymentFieldDelegate @required /** 输入完成 end editing @param paymentField 支付框 */ - (void)lYPaymentFieldDidFinishedEditing:(LYSecurityField *)paymentField; @optional /** 开始输入 begin editing @param paymentField 支付框 */ - (void)lYPaymentFieldDidBeginEditing:(LYSecurityField *)paymentField; /** 删除一个字符 delete a character @param paymentField 支付框 */ - (void)lYPaymentFieldDidDelete:(LYSecurityField *)paymentField; /** 清除完成 clear all characters @param paymentField 支付框 */ - (void)lYPaymentFieldDidClear:(LYSecurityField *)paymentField; @end @interface LYSecurityField : UIControl @property (nonatomic, assign) id @property (nonatomic, assign) NSInteger numberOfCharacters; @property (nonatomic, assign) SecurityCharacterType securityCharacterType; @property (nonatomic, assign) BorderType borderType; @property (nonatomic, assign) CGFloat diameterOfDot; @property (nonatomic, assign) CGSize securityImageSize; @property (nonatomic, assign, readonly) NSInteger countOfVerification; @property (nonatomic, copy) NSString *text; @property (nonatomic, copy) void (^completion)(LYSecurityField *field, NSString *text); @property (nonatomic, strong) UIColor *tintColor; @property (nonatomic, strong) UIColor *colorOfCharacter; @property (nonatomic, strong) UIImage *securityImage; - (instancetype)initWithNumberOfCharacters:(NSInteger)numberOfCharacters securityCharacterType:(SecurityCharacterType)securityCharacterType borderType:(BorderType)borderType; - (void)clear; @end NS_ASSUME_NONNULL_END // // LYSecurityField.m // PaymentSecurityField // // Created by 刘宇 on 2017/8/2. // Copyright © 2017年 刘宇. All rights reserved. // #import "LYSecurityField.h" NS_ASSUME_NONNULL_BEGIN #define DEFAULT_COUNT_CHARACTERS 6; #define DEFAULT_RADIUS 6; #define DEFAULT_BODER_WIDTH 0.5; #define DEFAULT_HORIZONTALLINE_WIDTH 20 #define DEFAULT_CUSTOMIMAGE_WIDTH 20 void *KVOFrameContext; @interface LYSecurityField() { int completion_count; } @property (nonatomic, strong) UIView *contentView; @property (nonatomic, strong) NSMutableArray @property (nonatomic, strong) NSMutableArray /** An array of layers holding secure placeholders. */ @property (nonatomic, strong) NSMutableArray @property (nonatomic, strong) NSMutableArray @property (nonatomic, strong) NSMutableArray @property (nonatomic, strong) NSMutableArray @property (nonatomic, strong) NSMutableDictionary - (CAShapeLayer *)createSecurityDot; - (CALayer *)createSeparaterLine; - (CATextLayer *)createCharacter; - (CALayer *)createCustomImage; - (CALayer *)createHorizontalLine; @end @implementation LYSecurityField - (void)dealloc { [self removeObserver:self forKeyPath:@"frame" context:KVOFrameContext]; } - (instancetype)initWithNumberOfCharacters:(NSInteger)numberOfCharacters securityCharacterType:(SecurityCharacterType)securityCharacterType borderType:(BorderType)borderType { self = [super init]; if (self) { [self steup]; self.numberOfCharacters = numberOfCharacters; self.securityCharacterType = securityCharacterType; self.borderType = borderType; } return self; } - (instancetype)init { self = [super init]; if (self) { [self steup]; } return self; } - (void)steup { self.contentView = ({ UIView *contentView = [[UIView alloc] init]; contentView.backgroundColor = UIColor.clearColor; contentView.userInteractionEnabled = NO; contentView; }); [self addSubview:self.contentView]; self.diameterOfDot = 15; self.colorOfCharacter = UIColor.blackColor; self.text = @""; self.placeholderDic = [NSMutableDictionary dictionary]; self.lines = [NSMutableArray array]; [self addTarget:self action:@selector(hangdleAction:) forControlEvents:UIControlEventTouchUpInside]; [self addObserver:self forKeyPath:@"frame" options:NSKeyValueObservingOptionNew|NSKeyValueObservingOptionOld context:KVOFrameContext]; } - (void)layoutSubviews { [super layoutSubviews]; self.contentView.frame = self.bounds; CGFloat width = CGRectGetWidth(self.frame); CGFloat height = CGRectGetHeight(self.frame); CGFloat pieceWidth = width / self.numberOfCharacters; !self.placeholderDic[@(self.securityCharacterType)]?:[self.placeholderDic[@(self.securityCharacterType)] enumerateObjectsUsingBlock:^(CALayer * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) { obj.position = CGPointMake(pieceWidth / 2.f + (pieceWidth * idx), height / 2.f); }]; if (self.borderType != BorderTypeNoBorder) { [self.lines enumerateObjectsUsingBlock:^(CALayer * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) { [self.contentView.layer addSublayer:obj]; obj.frame = CGRectMake(pieceWidth * (idx + 1) - self.layer.borderWidth / 2.f, 0, self.layer.borderWidth, height); }]; } } #pragma mark - createPlaceholderCharacter /** Create a black dot. @return dot */ - (CAShapeLayer *)createSecurityDot { CAShapeLayer *layer = [[CAShapeLayer alloc] init]; layer.bounds = CGRectMake(0, 0, self.diameterOfDot, self.diameterOfDot); layer.path = [UIBezierPath bezierPathWithRoundedRect:layer.bounds cornerRadius:self.diameterOfDot / 2.f].CGPath; layer.opacity = 0; [self.contentView.layer addSublayer:layer]; return layer; } /** Create a split line. @return line */ - (CALayer *)createSeparaterLine { CALayer *layer = [[CALayer alloc] init]; layer.backgroundColor = self.tintColor.CGColor?:self.layer.borderColor; return layer; } /** Create an unencrypted character. @return character */ - (CATextLayer *)createCharacter { CATextLayer *layer = [[CATextLayer alloc] init]; layer.bounds = CGRectMake(0, 0, self.diameterOfDot*3, self.diameterOfDot*3); layer.foregroundColor = UIColor.blackColor.CGColor; layer.contentsScale = [UIScreen mainScreen].scale; layer.alignmentMode = kCAAlignmentCenter; layer.wrapped = YES; layer.opacity = 0; [self.contentView.layer addSublayer:layer]; return layer; } /** Customize a picture that represents security. @return layer */ - (CALayer *)createCustomImage { CALayer *layer = [[CALayer alloc] init]; layer.opacity = 0; [self.contentView.layer addSublayer:layer]; return layer; } - (CALayer *)createHorizontalLine { CALayer *layer = [[CALayer alloc] init]; layer.bounds = CGRectMake(0, 0, DEFAULT_HORIZONTALLINE_WIDTH, 5); layer.backgroundColor = UIColor.blackColor.CGColor; layer.opacity = 0; [self.contentView.layer addSublayer:layer]; return layer; } #pragma mark - set - (void)setNumberOfCharacters:(NSInteger)numberOfCharacters { if (numberOfCharacters != _numberOfCharacters) { _numberOfCharacters = numberOfCharacters; for (int i = 0; i < self.numberOfCharacters-1; i++) { [self.lines addObject:[self createSeparaterLine]]; } } } - (void)setDiameterOfDot:(CGFloat)diameterOfDot { _diameterOfDot = diameterOfDot; if (self.placeholderDic[@(SecurityCharacterTypeSecurityDot)]) { [self.dots enumerateObjectsUsingBlock:^(CAShapeLayer * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) { obj.bounds = CGRectMake(0, 0, diameterOfDot, diameterOfDot); obj.path = [UIBezierPath bezierPathWithRoundedRect:obj.bounds cornerRadius:diameterOfDot / 2.f].CGPath; }]; } } - (void)setSecurityImage:(UIImage *)securityImage { _securityImage = securityImage; !self.placeholderDic[@(self.securityCharacterType)]?:[self.placeholderDic[@(self.securityCharacterType)] enumerateObjectsUsingBlock:^(CALayer * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) { obj.contents = (id)securityImage.CGImage; }]; } - (void)setTintColor:(UIColor *)tintColor { _tintColor = tintColor; self.layer.borderColor = tintColor.CGColor; } - (void)setColorOfCharacter:(UIColor *)colorOfCharacter { _colorOfCharacter = colorOfCharacter; if (self.securityCharacterType == SecurityCharacterTypeSecurityDot) { [self.placeholderDic[@(self.securityCharacterType)] enumerateObjectsUsingBlock:^(CAShapeLayer * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) { obj.strokeColor = colorOfCharacter.CGColor; }]; } else if (self.securityCharacterType == SecurityCharacterTypePlainText) { [self.placeholderDic[@(self.securityCharacterType)] enumerateObjectsUsingBlock:^(CATextLayer * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) { obj.foregroundColor = colorOfCharacter.CGColor; }]; } else if (self.securityCharacterType == SecurityCharacterTypeHorizontalLine) { [self.placeholderDic[@(self.securityCharacterType)] enumerateObjectsUsingBlock:^(CATextLayer * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) { obj.backgroundColor = colorOfCharacter.CGColor; }]; } } - (void)setSecurityCharacterType:(SecurityCharacterType)securityCharacterType { _securityCharacterType = securityCharacterType; if (!self.placeholderDic[@(securityCharacterType)]) { if (securityCharacterType == SecurityCharacterTypeSecurityDot) { self.placeholderDic[@(securityCharacterType)] = self.dots; } else if (securityCharacterType == SecurityCharacterTypePlainText) { self.placeholderDic[@(securityCharacterType)] = self.plaintexts; } else if (securityCharacterType == SecurityCharacterTypeCustomImage) { self.placeholderDic[@(securityCharacterType)] = self.customImages; } else if (securityCharacterType == SecurityCharacterTypeHorizontalLine) { self.placeholderDic[@(securityCharacterType)] = self.horizontalLines; } } } - (void)setBorderType:(BorderType)borderType { _borderType = borderType; switch (borderType) { case BorderTypeHaveRoundedCorner: { self.layer.borderColor = self.tintColor.CGColor; self.layer.borderWidth = DEFAULT_BODER_WIDTH; self.layer.cornerRadius = DEFAULT_RADIUS; break; } case BorderTypeNoRoundedCorner: { self.layer.borderColor = self.tintColor.CGColor; self.layer.borderWidth = DEFAULT_BODER_WIDTH; self.layer.cornerRadius = 0; break; } case BorderTypeNoBorder: { self.layer.borderWidth = 0; break; } default: break; } } #pragma mark - get - (NSInteger)countOfVerification { return completion_count; } - (NSMutableArray { if (!_dots) { _dots = [NSMutableArray array]; for (int i = 0; i < self.numberOfCharacters; i++) { [_dots addObject:[self createSecurityDot]]; } } return _dots; } - (NSMutableArray { if (!_plaintexts) { _plaintexts = [NSMutableArray array]; for (int i = 0; i < self.numberOfCharacters; i++) { [_plaintexts addObject:[self createCharacter]]; } } return _plaintexts; } - (NSMutableArray { if (!_horizontalLines) { _horizontalLines = [NSMutableArray array]; for (int i = 0; i < self.numberOfCharacters; i++) { [_horizontalLines addObject:[self createHorizontalLine]]; } } return _horizontalLines; } - (NSMutableArray { if (!_customImages) { _customImages = [NSMutableArray array]; for (int i = 0; i < self.numberOfCharacters; i++) { [_customImages addObject:[self createCustomImage]]; } } return _customImages; } - (NSMutableArray { if (!_boxs) { _boxs = [NSMutableArray array]; } return _boxs; } #pragma mark - KVO - (void)observeValueForKeyPath:(nullable NSString *)keyPath ofObject:(nullable id)object change:(nullable NSDictionary { if ([keyPath isEqualToString:@"frame"]) { if (self.securityCharacterType == SecurityCharacterTypeSecurityDot || self.securityCharacterType == SecurityCharacterTypeHorizontalLine) { } else if (self.securityCharacterType == SecurityCharacterTypePlainText) { [self.placeholderDic[@(self.securityCharacterType)] enumerateObjectsUsingBlock:^(CALayer * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) { obj.bounds = CGRectMake(0, 0, CGRectGetWidth(self.frame)/self.numberOfCharacters, CGRectGetHeight(self.frame)); }]; } else { [self.placeholderDic[@(self.securityCharacterType)] enumerateObjectsUsingBlock:^(CALayer * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) { if (self.securityImageSize.width == 0) { obj.bounds = CGRectMake(0, 0, DEFAULT_CUSTOMIMAGE_WIDTH, DEFAULT_CUSTOMIMAGE_WIDTH); } else { obj.bounds = CGRectMake(0, 0, self.securityImageSize.width, self.securityImageSize.height); } }]; } } } #pragma mark - UITextInputTraits - (UIKeyboardType)keyboardType { return UIKeyboardTypeNumberPad; } #pragma mark - UIKeyInput - (BOOL)hasText { return self.text.length > 0; } - (void)insertText:(NSString *)text { if (self.text.length < self.numberOfCharacters) { NSInteger index = self.text.length; NSMutableArray placeholders[index].opacity = 1; if (self.securityCharacterType == SecurityCharacterTypePlainText) { CATextLayer *layer = (CATextLayer *)placeholders[index]; layer.string = text; } self.text = [self.text stringByAppendingString:text]; if (index == self.numberOfCharacters - 1) { completion_count++; if (@protocol(LYPaymentFieldDelegate) && [self.delegate respondsToSelector:@selector(lYPaymentFieldDidFinishedEditing:)]) { [self.delegate lYPaymentFieldDidFinishedEditing:self]; } !self.completion?:self.completion(self, self.text); } else { if (@protocol(LYPaymentFieldDelegate) && [self.delegate respondsToSelector:@selector(lYPaymentFieldDidBeginEditing:)]) { [self.delegate lYPaymentFieldDidBeginEditing:self]; } } [self setNeedsLayout]; } } - (void)deleteBackward { if (self.text.length > 0) { self.text = [self.text substringWithRange:NSMakeRange(0, self.text.length - 1)]; NSInteger index = self.text.length; NSMutableArray placeholders[index].opacity = 0; if (@protocol(LYPaymentFieldDelegate) && [self.delegate respondsToSelector:@selector(lYPaymentFieldDidDelete:)]) { [self.delegate lYPaymentFieldDidDelete:self]; } if (!self.text.length) { if (@protocol(LYPaymentFieldDelegate) && [self.delegate respondsToSelector:@selector(lYPaymentFieldDidClear:)]) { [self.delegate lYPaymentFieldDidClear:self]; } } else { if (@protocol(LYPaymentFieldDelegate) && [self.delegate respondsToSelector:@selector(lYPaymentFieldDidBeginEditing:)]) { [self.delegate lYPaymentFieldDidBeginEditing:self]; } } } } #pragma mark - firstReponder - (BOOL)canBecomeFirstResponder { return YES; } - (void)hangdleAction:(id)sender { [self becomeFirstResponder]; } #pragma mark - public methods - (void)clear { self.text = @""; [self.placeholderDic[@(self.securityCharacterType)] setValue:@0 forKeyPath:@"opacity"]; if (@protocol(LYPaymentFieldDelegate) && [self.delegate respondsToSelector:@selector(lYPaymentFieldDidClear:)]) { [self.delegate lYPaymentFieldDidClear:self]; } } @end NS_ASSUME_NONNULL_END