yinmeng-ios/xplan-ios/Main/Login/View/CustomView/LoginVerifCodeView.m

//
//  LoginVerifCodeView.m
//  xplan-ios
//
//  Created by 冯硕 on 2021/9/8.
//

#import "LoginVerifCodeView.h"
///第三方
#import <Masonry/Masonry.h>
#import <ReactiveObjC/ReactiveObjC.h>
///Tool
#import "ThemeColor.h"

@interface LoginVerifCodeView ()
///输入框的占位符
@property (nonatomic,strong) UITextField *textField;
///显示label的数组
@property (nonatomic,strong) NSMutableArray<UILabel *> *lableArray;
@end


@implementation LoginVerifCodeView

- (instancetype)initWithFrame:(CGRect)frame
{
	self = [super initWithFrame:frame];
	if (self) {
		[self initSubViews];
		[self initSubViewConstraints];
		[self initEvents];
	}
	return self;
}

#pragma mark - Private Method
- (void)initSubViews {
	[self addSubview:self.textField];
}

- (void)initSubViewConstraints {
	[self.textField mas_makeConstraints:^(MASConstraintMaker *make) {
		make.edges.mas_equalTo(self);
	}];
}

- (void)initEvents {
	@weakify(self);
	[[self.textField rac_signalForControlEvents:UIControlEventEditingChanged] subscribeNext:^(__kindof UITextField *textField) {
		@strongify(self);
		[self updateLablesWithText:textField];
	}];
}

- (void)updateLablesWithText:(UITextField *)textField {
	if (textField.text.length > self.lableArray.count) {
		textField.text = [textField.text substringToIndex:self.lableArray.count];
	}
	if (textField.text.length >= self.number) {
		[textField resignFirstResponder];
		if (_textFieldChangeBlock) {
			_textFieldChangeBlock(textField.text);
		}
	}
	
	for (UILabel *pwLab in self.lableArray) {
		if (pwLab.tag < (100 + textField.text.length)) {
			NSRange range = NSMakeRange(pwLab.tag-100, 1);
			pwLab.text = [textField.text substringWithRange:range];
		}else{
			pwLab.text = @"";
		}
	}
}

- (void)configLabelArray {
	CGFloat itemWidth = 45;
	CGFloat itemHeight = 45;
	CGFloat itemSpace = 11;
	for (int i = 0; i < _number; i++) {
		UILabel * label = [[UILabel alloc] init];
		label.textColor = [ThemeColor mainTextColor];
		label.font = [UIFont fontWithName:@"PingFang-SC-Medium" size:18];
		label.textAlignment = NSTextAlignmentCenter;
		label.backgroundColor = [ThemeColor appCellBackgroundColor];
		label.layer.masksToBounds = YES;
		label.layer.cornerRadius = 10;
		label.tag = 100 + i;
		[self addSubview:label];
		[label mas_makeConstraints:^(MASConstraintMaker *make) {
			make.size.mas_equalTo(CGSizeMake(itemWidth, itemHeight));
			make.centerY.mas_equalTo(self);
			make.left.mas_equalTo(self).offset((itemWidth  + itemSpace)* i);
		}];
		[self.lableArray addObject:label];
	}
	
	UILabel * label = [self.lableArray lastObject];
	if (label) {
		[self mas_makeConstraints:^(MASConstraintMaker *make) {
			make.right.mas_equalTo(label.mas_right);
			make.height.mas_equalTo(itemHeight);
		}];
	}
}

#pragma mark - Getters And Setters
- (void)setNumber:(int)number {
	_number = number;
	if (_number > 0) {
		[self configLabelArray];
	}
}

- (UITextField *)textField {
	if (!_textField) {
		_textField = [[UITextField alloc] init];
		_textField.tintColor = [UIColor clearColor];
        _textField.textColor = [UIColor clearColor];
		_textField.keyboardType = UIKeyboardTypeNumberPad;
		[_textField becomeFirstResponder];
	}
	return _textField;
}

- (NSMutableArray<UILabel *> *)lableArray {
	if (!_lableArray) {
		_lableArray = [NSMutableArray array];
	}
	return _lableArray;
}

@end