//
//  YTUnclickableTextField.m
//  分时租赁
//
//  Created by chips on 17/3/27.
//  Copyright © 2017年 柯其谱. All rights reserved.
//#import "YTUnclickableTextField.h"NSString * const YTUnclickableTextFieldSpace = @" ";@implementation YTUnclickableTextField- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event {return nil;
}- (BOOL)becomeFirstResponder {self.text = YTUnclickableTextFieldSpace;return [super becomeFirstResponder];
}@end

//
//  PicVerifyCodeView.m
//  分时租赁
//
//  Created by chips on 17/3/24.
//  Copyright © 2017年 柯其谱. All rights reserved.
//#import "PicVerifyCodeView.h"
#import "YTUnclickableTextField.h"
#import "YTHttpTool.h"
#import "Masonry.h"static NSInteger const kPicVerifyCodeNumber = 4;@interface PicVerifyCodeView () <UITextFieldDelegate>/** 请求图形验证码图片的url字符串 */
@property (nonatomic, copy) NSString *imageUrlString;
/** 验证码错误label */
@property (nonatomic, strong) UILabel *errorLabel;
/** 图形验证码imageView */
@property (nonatomic, strong) UIImageView *verifyCodeImageView;
/** 再生成图形验证码button */
@property (nonatomic, strong) UIButton *regenerateButton;@end@implementation PicVerifyCodeView#pragma mark - setter and getter
- (NSMutableArray<YTUnclickableTextField *> *)textFields {if (_textFields == nil) {_textFields = [NSMutableArray array];}return _textFields;
}#pragma mark - Construction method
- (instancetype)initWithFrame:(CGRect)frame tel:(NSString *)tel delegate:(id<PicVerifyCodeViewDelegate>)delegate {if (self = [super initWithFrame:frame]) {self.backgroundColor = [UIColor colorWithRed:0.2 green:0.2 blue:0.2 alpha:0.8];[self setupSubviews];self.imageUrlString = [NSString stringWithFormat:@"%@:%@/Account/ValidateCode?Tel=%@", YTHttpToolURLString, YTHttpToolPort, tel];[self generateVerCode];self.tel = tel;self.delegate = delegate;}return self;
}#pragma mark - Setup
- (void)setupSubviews {UIView *view = [[UIView alloc]init];[self addSubview:view];view.backgroundColor = [UIColor whiteColor];view.layer.cornerRadius = 10;CGFloat cancelImageViewW = 16;CGFloat margin = 16;UIImageView *cancelImageView = [[UIImageView alloc]init];[view addSubview:cancelImageView];cancelImageView.image = [UIImage imageNamed:@"chacha"];cancelImageView.userInteractionEnabled = YES;UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapCancelImageView:)];[cancelImageView addGestureRecognizer:tap];CGFloat labelH = 30;UILabel *label = [[UILabel alloc]init];[view addSubview:label];label.text = @"请输入图形验证码";label.textAlignment = NSTextAlignmentCenter;label.font = [UIFont systemFontOfSize:18];UILabel *errorLabel = [[UILabel alloc]init];[view addSubview:errorLabel];self.errorLabel = errorLabel;errorLabel.textColor = [UIColor redColor];errorLabel.textAlignment = NSTextAlignmentCenter;errorLabel.font = [UIFont systemFontOfSize:12];UIView *picView = [[UIView alloc]init];[view addSubview:picView];UIButton *button = [[UIButton alloc]init];self.regenerateButton = button;[view addSubview:button];button.backgroundColor = AppStyleColor;[button setImage:[UIImage imageNamed:@"sx"] forState:UIControlStateNormal];[button addTarget:self action:@selector(clickRegenerateButton) forControlEvents:UIControlEventTouchUpInside];UIImageView *picImageView = [[UIImageView alloc]init];self.verifyCodeImageView = picImageView;[picView addSubview:picImageView];UIView *textFieldsView = [[UIView alloc]init];[view addSubview:textFieldsView];for (int i = 0; i < kPicVerifyCodeNumber; i++) {YTUnclickableTextField *textField = [[YTUnclickableTextField alloc]init];[self.textFields addObject:textField];[textFieldsView addSubview:textField];textField.textAlignment = NSTextAlignmentCenter;textField.keyboardType = UIKeyboardTypeNumberPad;textField.tintColor = [UIColor clearColor];[[self class]setupBorderColor:textField];textField.layer.cornerRadius = 5;textField.layer.borderWidth = 1;textField.delegate = self;[textField addTarget:self action:@selector(editingChangedWith:) forControlEvents:UIControlEventEditingChanged];if (i == 0) {[textField becomeFirstResponder];textField.layer.borderColor = AppStyleColor.CGColor;}}[view mas_makeConstraints:^(MASConstraintMaker *make) {make.leading.equalTo(super.mas_leading).with.offset(40);make.top.equalTo(super.mas_top).with.offset(130);make.centerX.equalTo(super.mas_centerX);make.height.equalTo(view.mas_width).with.dividedBy(1.3);}];[cancelImageView mas_makeConstraints:^(MASConstraintMaker *make) {make.top.equalTo(view.mas_top).with.offset(margin);make.trailing.equalTo(view.mas_trailing).with.offset(-margin);make.width.mas_equalTo(cancelImageViewW);make.height.equalTo(cancelImageView.mas_width);}];[label mas_makeConstraints:^(MASConstraintMaker *make) {make.top.equalTo(cancelImageView.mas_bottom);make.leading.equalTo(view.mas_leading);make.trailing.equalTo(view.mas_trailing);make.height.mas_equalTo(labelH);}];[errorLabel mas_makeConstraints:^(MASConstraintMaker *make) {make.top.equalTo(label.mas_bottom);make.height.mas_equalTo(30);make.leading.equalTo(label.mas_leading);make.trailing.equalTo(label.mas_trailing);}];CGFloat picMargin = 16;[picView mas_makeConstraints:^(MASConstraintMaker *make) {make.top.equalTo(errorLabel.mas_bottom).with.offset(8);make.leading.equalTo(view.mas_leading).with.offset(cancelImageViewW+margin);make.trailing.equalTo(cancelImageView.mas_leading);make.bottom.equalTo(textFieldsView.mas_top).offset(-picMargin);}];[button mas_makeConstraints:^(MASConstraintMaker *make) {make.top.equalTo(picView.mas_top);make.trailing.equalTo(picView.mas_trailing);make.bottom.equalTo(picView.mas_bottom);make.width.equalTo(button.mas_height);}];[picImageView mas_makeConstraints:^(MASConstraintMaker *make) {make.top.equalTo(picView.mas_top);make.leading.equalTo(picView.mas_leading);make.trailing.equalTo(button.mas_leading);make.bottom.equalTo(picView.mas_bottom);}];[textFieldsView mas_makeConstraints:^(MASConstraintMaker *make) {make.height.equalTo(picView.mas_height);make.leading.equalTo(picView.mas_leading);make.trailing.equalTo(picView.mas_trailing);make.bottom.equalTo(view.mas_bottom).with.offset(-picMargin);}];CGFloat textFieldInset = 10;WeakSelf[self.textFields enumerateObjectsUsingBlock:^(YTUnclickableTextField * _Nonnull textField, NSUInteger idx, BOOL * _Nonnull stop) {[textField mas_makeConstraints:^(MASConstraintMaker *make) {make.top.equalTo(textFieldsView.mas_top);make.height.equalTo(textField.mas_width);if (idx == 0) {make.leading.equalTo(textFieldsView.mas_leading);make.trailing.equalTo(weakSelf.textFields[idx+1].mas_leading).with.offset(-textFieldInset);} else if (idx == self.textFields.count-1) {make.width.equalTo(weakSelf.textFields.firstObject.mas_width);make.trailing.equalTo(textFieldsView.mas_trailing);} else {make.width.equalTo(weakSelf.textFields.firstObject.mas_width);make.trailing.equalTo(weakSelf.textFields[idx+1].mas_leading).with.offset(-textFieldInset);}}];}];
}#pragma mark - Event response
- (void)tapCancelImageView:(UITapGestureRecognizer *)sender {[self removeFromSuperview];
}- (void)clickRegenerateButton {[self generateVerCode];
}- (void)editingChangedWith:(UITextField *)sender {if (![sender isFirstResponder]) {return;}if (!sender.text.length) {sender.text = YTUnclickableTextFieldSpace;} else {[self.textFields enumerateObjectsUsingBlock:^(YTUnclickableTextField * _Nonnull textField, NSUInteger idx, BOOL * _Nonnull stop) {if (sender == textField) {//最后一个输入框获取焦点if (idx == self.textFields.count-1) {//获取完整的图形验证码NSMutableString *verCode = [NSMutableString string];for (UITextField *tf in self.textFields) {[verCode appendString:tf.text];}//将self和完整输入的验证码传入delegateif ([self.delegate respondsToSelector:@selector(textFieldsDidEndEditing:verCode:)]) {[self.delegate textFieldsDidEndEditing:self verCode:verCode];}} else {[self.textFields[idx+1] becomeFirstResponder];[[self class] setupBorderColor:textField];[[self class] setupBorderColor:self.textFields[idx+1]];}*stop = YES;}}];}
}#pragma mark - UITextFieldDelegate
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {if (!textField.isFirstResponder) {return NO;}if (string.length) {textField.text = nil;} else {[self.textFields enumerateObjectsUsingBlock:^(YTUnclickableTextField * _Nonnull iTextField, NSUInteger idx, BOOL * _Nonnull stop) {if (iTextField == textField) {if (idx > 0 && [iTextField.text isEqualToString:YTUnclickableTextFieldSpace]) {[self.textFields[idx-1] becomeFirstResponder];[[self class] setupBorderColor:textField];[[self class] setupBorderColor:self.textFields[idx-1]];}//消除错误label文字if (self.errorLabel.text) {[self showErrorCodeText:nil];}*stop = YES;}}];}return YES;
}#pragma mark - Private method
+ (void)setupBorderColor:(UITextField *)textField {textField.layer.borderColor = textField.isFirstResponder ? AppStyleColor.CGColor : [UIColor lightGrayColor].CGColor;
}- (void)generateVerCode {self.verifyCodeImageView.image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:self.imageUrlString]]];
}#pragma mark - Public method
- (void)showErrorCodeText:(NSString *)text {self.errorLabel.text = text;
}@end