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Pods/CRBoxInputView/PodCode/Classes/CRBoxInputView.m

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+//
+//  CRBoxInputView.m
+//  CRBoxInputView
+//
+//  Created by Chobits on 2019/1/3.
+//  Copyright © 2019 Chobits. All rights reserved.
+//
+
+#import "CRBoxInputView.h"
+#import <Masonry/Masonry.h>
+#import "CRBoxTextView.h"
+
+typedef NS_ENUM(NSInteger, CRBoxTextChangeType) {
+    CRBoxTextChangeType_NoChange,
+    CRBoxTextChangeType_Insert,
+    CRBoxTextChangeType_Delete,
+};
+
+@interface CRBoxInputView () <UICollectionViewDataSource, UICollectionViewDelegate, UITextFieldDelegate>
+{
+    NSInteger _oldLength;
+    BOOL _ifNeedBeginEdit;
+}
+
+@property (nonatomic, strong) CRBoxTextView *textView;
+@property (nonatomic, strong) UICollectionView *mainCollectionView;
+@property (nonatomic, strong) NSMutableArray <NSString *> *valueArr;
+@property (nonatomic, strong) NSMutableArray <CRBoxInputCellProperty *> *cellPropertyArr;
+
+@end
+
+@implementation CRBoxInputView
+
+- (instancetype)initWithFrame:(CGRect)frame{
+    self = [super initWithFrame:frame];
+    if (self) {
+        [self initDefaultValue];
+        [self addNotificationObserver];
+    }
+    return self;
+}
+
+- (instancetype)init
+{
+    self = [super init];
+    if (self) {
+        [self initDefaultValue];
+        [self addNotificationObserver];
+    }
+    
+    return self;
+}
+
+#pragma mark - Notification Observer
+- (void)addNotificationObserver
+{
+    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationWillResignActive:) name:UIApplicationWillResignActiveNotification object:nil];
+    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationDidBecomeActive:) name:UIApplicationDidBecomeActiveNotification object:nil];
+}
+
+- (void)applicationWillResignActive:(NSNotification *)notification
+{
+    // 触发home按下，光标动画移除
+}
+
+- (void)applicationDidBecomeActive:(NSNotification *)notification
+{
+    // 重新进来后响应，光标动画重新开始
+    [_mainCollectionView reloadData];
+}
+
+#pragma mark - You can inherit
+- (void)initDefaultValue
+{
+    _oldLength = 0;
+    self.ifNeedSecurity = NO;
+    self.securityDelay = 0.3;
+    self.codeLength = 4;
+    self.ifNeedCursor = YES;
+    self.keyBoardType = UIKeyboardTypeNumberPad;
+    self.backgroundColor = [UIColor clearColor];
+    _valueArr = [NSMutableArray new];
+    _ifNeedBeginEdit = NO;
+}
+
+- (void)loadAndPrepareView
+{
+    [self loadAndPrepareViewWithBeginEdit:YES];
+}
+
+- (void)loadAndPrepareViewWithBeginEdit:(BOOL)beginEdit
+{
+    if (_codeLength<=0) {
+        NSAssert(NO, @"请输入大于0的验证码位数");
+        return;
+    }
+    
+    [self generateCellPropertyArr];
+    
+    // mainCollectionView
+    [self addSubview:self.mainCollectionView];
+    [self.mainCollectionView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.edges.mas_equalTo(UIEdgeInsetsZero);
+    }];
+    
+    // textView
+    [self addSubview:self.textView];
+    [self.textView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.edges.mas_equalTo(UIEdgeInsetsZero);
+    }];
+    
+    if (beginEdit) {
+        [self beginEdit];
+    }
+}
+
+- (void)generateCellPropertyArr
+{
+    [self.cellPropertyArr removeAllObjects];
+    for (int i = 0; i < self.codeLength; i++) {
+        [self.cellPropertyArr addObject:[self.customCellProperty copy]];
+    }
+}
+
+#pragma mark - UITextFieldDelegate
+- (void)textFieldDidBeginEditing:(UITextField *)textField
+{
+    _ifNeedBeginEdit = YES;
+    [self.mainCollectionView reloadData];
+}
+
+- (void)textFieldDidEndEditing:(UITextField *)textField
+{
+    _ifNeedBeginEdit = NO;
+    [self.mainCollectionView reloadData];
+}
+
+#pragma mark - TextViewEdit
+- (void)beginEdit{
+    [self.textView becomeFirstResponder];
+}
+
+- (void)endEdit{
+    [self.textView resignFirstResponder];
+}
+
+- (void)clearAll
+{
+    [self clearAllWithBeginEdit:YES];
+}
+
+- (void)clearAllWithBeginEdit:(BOOL)beginEdit
+{
+    _oldLength = 0;
+    [_valueArr removeAllObjects];
+    self.textView.text = @"";
+    [self closeAllSecurityShow];
+    [self.mainCollectionView reloadData];
+    [self triggerBlock];
+    
+    if (beginEdit) {
+        [self beginEdit];
+    }
+}
+
+#pragma mark - UITextFieldDidChange
+- (void)textDidChange:(UITextField *)textField{
+    
+    __weak typeof(self) weakSelf = self;
+    
+    NSString *verStr = textField.text;
+    
+    //有空格去掉空格
+    verStr = [verStr stringByReplacingOccurrencesOfString:@" " withString:@""];
+    if (verStr.length >= _codeLength) {
+        verStr = [verStr substringToIndex:_codeLength];
+        [self endEdit];
+    }
+    textField.text = verStr;
+    
+    // 判断删除/增加
+    CRBoxTextChangeType boxTextChangeType = CRBoxTextChangeType_NoChange;
+    if (verStr.length > _oldLength) {
+        boxTextChangeType = CRBoxTextChangeType_Insert;
+    }else if (verStr.length < _oldLength){
+        boxTextChangeType = CRBoxTextChangeType_Delete;
+    }
+    
+    // _valueArr
+    if (boxTextChangeType == CRBoxTextChangeType_Delete) {
+        [self setSecurityShow:NO index:_valueArr.count-1];
+        [_valueArr removeLastObject];
+        
+    }else if (boxTextChangeType == CRBoxTextChangeType_Insert){
+        if (verStr.length > 0) {
+            if (_valueArr.count > 0) {
+                [self replaceValueArrToAsteriskWithIndex:_valueArr.count - 1 needEqualToCount:NO];
+            }
+//            NSString *subStr = [verStr substringWithRange:NSMakeRange(verStr.length - 1, 1)];
+//            [self->_valueArr addObject:subStr];
+            [_valueArr removeAllObjects];
+            
+            [verStr enumerateSubstringsInRange:NSMakeRange(0, verStr.length) options:NSStringEnumerationByComposedCharacterSequences usingBlock:^(NSString *substring, NSRange substringRange, NSRange enclosingRange, BOOL *stop) {
+                [weakSelf.valueArr addObject:substring];
+            }];
+            
+            [self delaySecurityProcess];
+        }
+    }
+    [_mainCollectionView reloadData];
+    
+    _oldLength = verStr.length;
+    [self triggerBlock];
+}
+
+#pragma mark - Control security show
+- (void)setSecurityShow:(BOOL)isShow index:(NSInteger)index
+{
+    if (index < 0) {
+        NSAssert(NO, @"index必须大于0");
+        return;
+    }
+    
+    CRBoxInputCellProperty *cellProperty = self.cellPropertyArr[index];
+    cellProperty.ifShowSecurity = isShow;
+}
+
+- (void)closeAllSecurityShow
+{
+    [self.cellPropertyArr enumerateObjectsUsingBlock:^(CRBoxInputCellProperty * _Nonnull cellProperty, NSUInteger idx, BOOL * _Nonnull stop) {
+        if (cellProperty.ifShowSecurity == YES) {
+            cellProperty.ifShowSecurity = NO;
+        }
+    }];
+}
+
+#pragma mark - Trigger block
+- (void)triggerBlock
+{
+    if (self.textDidChangeblock) {
+        BOOL isFinished = _valueArr.count == _codeLength ? YES : NO;
+        self.textDidChangeblock(_textView.text, isFinished);
+    }
+}
+
+#pragma mark - Asterisk
+// 替换密文
+- (void)replaceValueArrToAsteriskWithIndex:(NSInteger)index needEqualToCount:(BOOL)needEqualToCount
+{
+    if (!self.ifNeedSecurity) {
+        return;
+    }
+    
+    if (needEqualToCount && index != _valueArr.count - 1) {
+        return;
+    }
+    
+    [self setSecurityShow:YES index:index];
+}
+
+// 延时替换密文
+- (void)delaySecurityProcess
+{
+    if (!self.ifNeedSecurity) {
+        return;
+    }
+    
+    __weak typeof(self) weakSelf = self;
+    [self delayAfter:_securityDelay dealBlock:^{
+        if (self->_valueArr.count > 0) {
+            [weakSelf replaceValueArrToAsteriskWithIndex:self->_valueArr.count-1 needEqualToCount:YES];
+            dispatch_async(dispatch_get_main_queue(), ^{
+                [self->_mainCollectionView reloadData];
+            });
+        }
+    }];
+}
+
+#pragma mark - DelayBlock
+- (void)delayAfter:(CGFloat)delayTime dealBlock:(void (^)(void))dealBlock
+{
+    dispatch_time_t timer = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(delayTime *NSEC_PER_SEC));
+    dispatch_after(timer, dispatch_get_main_queue(), ^{
+        if (dealBlock) {
+            dealBlock();
+        }
+    });
+}
+
+#pragma mark - UICollectionViewDataSource
+- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
+{
+    return _codeLength;
+}
+
+- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
+{
+    id tempCell = [self customCollectionView:collectionView cellForItemAtIndexPath:indexPath];
+    
+    if ([tempCell isKindOfClass:[CRBoxInputCell class]]) {
+        
+        CRBoxInputCell *cell = (CRBoxInputCell *)tempCell;
+        cell.ifNeedCursor = self.ifNeedCursor;
+        
+        // CellProperty
+        CRBoxInputCellProperty *cellProperty = self.cellPropertyArr[indexPath.row];
+        cellProperty.index = indexPath.row;
+        
+        // setOriginValue
+        NSUInteger focusIndex = _valueArr.count;
+        if (_valueArr.count > 0 && indexPath.row <= focusIndex - 1) {
+            cellProperty.originValue = _valueArr[indexPath.row];
+        }else{
+            cellProperty.originValue = @"";
+        }
+        
+        cell.boxInputCellProperty = cellProperty;
+        
+        if (_ifNeedBeginEdit) {
+            cell.selected = indexPath.row == focusIndex ? YES : NO;
+        }else{
+            cell.selected = NO;
+        }
+    }
+    
+    return tempCell;
+}
+
+#pragma mark - Qiuck set
+- (void)quickSetSecuritySymbol:(NSString *)securitySymbol
+{
+    if (securitySymbol.length != 1) {
+        securitySymbol = @"✱";
+    }
+    
+    self.customCellProperty.securitySymbol = securitySymbol;
+}
+
+#pragma mark - You can rewrite
+- (UICollectionViewCell *)customCollectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
+{
+    CRBoxInputCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:CRBoxInputCellID forIndexPath:indexPath];
+    return cell;
+}
+
+#pragma mark - Setter & Getter
+- (UICollectionView *)mainCollectionView
+{
+    if (!_mainCollectionView) {
+        _mainCollectionView = [[UICollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:self.boxFlowLayout];
+        _mainCollectionView.showsHorizontalScrollIndicator = NO;
+        _mainCollectionView.backgroundColor = [UIColor clearColor];
+        _mainCollectionView.delegate = self;
+        _mainCollectionView.dataSource = self;
+        _mainCollectionView.layer.masksToBounds = NO;
+        _mainCollectionView.clipsToBounds = NO;
+        [_mainCollectionView registerClass:[CRBoxInputCell class] forCellWithReuseIdentifier:CRBoxInputCellID];
+    }
+    
+    return _mainCollectionView;
+}
+
+- (CRBoxFlowLayout *)boxFlowLayout
+{
+    if (!_boxFlowLayout) {
+        _boxFlowLayout = [CRBoxFlowLayout new];
+        _boxFlowLayout.itemSize = CGSizeMake(42, 47);
+    }
+    
+    return _boxFlowLayout;
+}
+
+- (void)setCodeLength:(NSInteger)codeLength
+{
+    _codeLength = codeLength;
+    self.boxFlowLayout.itemNum = codeLength;
+}
+
+- (void)setKeyBoardType:(UIKeyboardType)keyBoardType{
+    _keyBoardType = keyBoardType;
+    self.textView.keyboardType = keyBoardType;
+}
+
+- (CRBoxTextView *)textView{
+    if (!_textView) {
+        _textView = [CRBoxTextView new];
+        _textView.tintColor = [UIColor clearColor];
+        _textView.backgroundColor = [UIColor clearColor];
+        _textView.textColor = [UIColor clearColor];
+        _textView.delegate = self;
+        [_textView addTarget:self action:@selector(textDidChange:) forControlEvents:UIControlEventEditingChanged];
+    }
+    return _textView;
+}
+
+- (void)setTextContentType:(UITextContentType)textContentType
+{
+    _textContentType = textContentType;
+    
+    _textView.textContentType = textContentType;
+}
+
+- (CRBoxInputCellProperty *)customCellProperty
+{
+    if (!_customCellProperty) {
+        _customCellProperty = [CRBoxInputCellProperty new];
+    }
+    
+    return _customCellProperty;
+}
+
+- (NSMutableArray <CRBoxInputCellProperty *> *)cellPropertyArr
+{
+    if (!_cellPropertyArr) {
+        _cellPropertyArr = [NSMutableArray new];
+    }
+    
+    return _cellPropertyArr;
+}
+
+- (NSString *)textValue
+{
+    return _textView.text;
+}
+
+@synthesize inputAccessoryView = _inputAccessoryView;
+- (void)setInputAccessoryView:(UIView *)inputAccessoryView
+{
+    _inputAccessoryView = inputAccessoryView;
+    self.textView.inputAccessoryView = _inputAccessoryView;
+}
+
+- (UIView *)inputAccessoryView
+{
+    return _inputAccessoryView;
+}
+
+@end