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SweetParty/第三方库/JXCategoryView/TitleImage/JXCategoryTitleImageCell.h

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+//
+//  JXCategoryImageCell.h
+//  JXCategoryView
+//
+//  Created by jiaxin on 2018/8/8.
+//  Copyright © 2018年 jiaxin. All rights reserved.
+//
+
+#import "JXCategoryTitleCell.h"
+
+@interface JXCategoryTitleImageCell : JXCategoryTitleCell
+
+@property (nonatomic, strong) UIImageView *imageView;
+
+@end

SweetParty/第三方库/JXCategoryView/TitleImage/JXCategoryTitleImageCell.m

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+//
+//  JXCategoryImageCell.m
+//  JXCategoryView
+//
+//  Created by jiaxin on 2018/8/8.
+//  Copyright © 2018年 jiaxin. All rights reserved.
+//
+
+#import "JXCategoryTitleImageCell.h"
+#import "JXCategoryTitleImageCellModel.h"
+
+@interface JXCategoryTitleImageCell()
+@property (nonatomic, strong) id currentImageInfo;
+@property (nonatomic, strong) NSString *currentImageName;
+@property (nonatomic, strong) NSURL *currentImageURL;
+@property (nonatomic, strong) UIStackView *stackView;
+@property (nonatomic, strong) NSLayoutConstraint *imageViewWidthConstraint;
+@property (nonatomic, strong) NSLayoutConstraint *imageViewHeightConstraint;
+@end
+
+@implementation JXCategoryTitleImageCell
+
+- (void)prepareForReuse {
+    [super prepareForReuse];
+
+    self.currentImageName = nil;
+    self.currentImageURL = nil;
+}
+
+- (void)initializeViews {
+    [super initializeViews];
+
+    [self.titleLabel removeFromSuperview];
+
+    _imageView = [[UIImageView alloc] init];
+    self.imageView.translatesAutoresizingMaskIntoConstraints = NO;
+    self.imageView.contentMode = UIViewContentModeScaleAspectFit;
+    self.imageViewWidthConstraint = [self.imageView.widthAnchor constraintEqualToConstant:0];
+    self.imageViewWidthConstraint.active = YES;
+    self.imageViewHeightConstraint = [self.imageView.heightAnchor constraintEqualToConstant:0];
+    self.imageViewHeightConstraint.active = YES;
+
+    _stackView = [[UIStackView alloc] init];
+    self.stackView.alignment = UIStackViewAlignmentCenter;
+    [self.contentView addSubview:self.stackView];
+    self.stackView.translatesAutoresizingMaskIntoConstraints = NO;
+    [self.stackView.centerXAnchor constraintEqualToAnchor:self.contentView.centerXAnchor].active = YES;
+    [self.stackView.centerYAnchor constraintEqualToAnchor:self.contentView.centerYAnchor].active = YES;
+}
+
+- (void)reloadData:(JXCategoryBaseCellModel *)cellModel {
+    [super reloadData:cellModel];
+
+    JXCategoryTitleImageCellModel *myCellModel = (JXCategoryTitleImageCellModel *)cellModel;
+
+    self.titleLabel.hidden = NO;
+    self.imageView.hidden = NO;
+    [self.stackView removeArrangedSubview:self.titleLabel];
+    [self.stackView removeArrangedSubview:self.imageView];
+    CGSize imageSize = myCellModel.imageSize;
+    self.imageViewWidthConstraint.constant = imageSize.width;
+    self.imageViewHeightConstraint.constant = imageSize.height;
+    self.stackView.spacing = myCellModel.titleImageSpacing;
+    
+    switch (myCellModel.imageType) {
+        case JXCategoryTitleImageType_TopImage: {
+            self.stackView.axis = UILayoutConstraintAxisVertical;
+            [self.stackView addArrangedSubview:self.imageView];
+            [self.stackView addArrangedSubview:self.titleLabel];
+            break;
+        }
+        case JXCategoryTitleImageType_LeftImage: {
+            self.stackView.axis = UILayoutConstraintAxisHorizontal;
+            [self.stackView addArrangedSubview:self.imageView];
+            [self.stackView addArrangedSubview:self.titleLabel];
+            break;
+        }
+        case JXCategoryTitleImageType_BottomImage: {
+            self.stackView.axis = UILayoutConstraintAxisVertical;
+            [self.stackView addArrangedSubview:self.titleLabel];
+            [self.stackView addArrangedSubview:self.imageView];
+            break;
+        }
+        case JXCategoryTitleImageType_RightImage: {
+            self.stackView.axis = UILayoutConstraintAxisHorizontal;
+            [self.stackView addArrangedSubview:self.titleLabel];
+            [self.stackView addArrangedSubview:self.imageView];
+            break;
+        }
+        case JXCategoryTitleImageType_OnlyImage: {
+            self.titleLabel.hidden = YES;
+            [self.stackView addArrangedSubview:self.imageView];
+            break;
+        }
+        case JXCategoryTitleImageType_OnlyTitle: {
+            self.imageView.hidden = YES;
+            [self.stackView addArrangedSubview:self.titleLabel];
+            break;
+        }
+    }
+
+    //因为`- (void)reloadData:(JXCategoryBaseCellModel *)cellModel`方法会回调多次，尤其是左右滚动的时候会调用无数次，如果每次都触发图片加载，会非常消耗性能。所以只会在图片发生了变化的时候，才进行图片加载。
+    if (myCellModel.loadImageBlock != nil) {
+        id currentImageInfo = myCellModel.imageInfo;
+        if (myCellModel.isSelected) {
+            currentImageInfo = myCellModel.selectedImageInfo;
+        }
+        if (currentImageInfo && ![currentImageInfo isEqualToString:self.currentImageInfo]) {
+            if (myCellModel.loadImageBlock) {
+                myCellModel.loadImageBlock(self.imageView, currentImageInfo);
+            }
+        }
+    }else {
+        NSString *currentImageName;
+        NSURL *currentImageURL;
+        if (myCellModel.imageName) {
+            currentImageName = myCellModel.imageName;
+        } else if (myCellModel.imageURL) {
+            currentImageURL = myCellModel.imageURL;
+        }
+        if (myCellModel.isSelected) {
+            if (myCellModel.selectedImageName) {
+                currentImageName = myCellModel.selectedImageName;
+            } else if (myCellModel.selectedImageURL) {
+                currentImageURL = myCellModel.selectedImageURL;
+            }
+        }
+        if (currentImageName && ![currentImageName isEqualToString:self.currentImageName]) {
+            self.currentImageName = currentImageName;
+            self.imageView.image = [UIImage imageNamed:currentImageName];
+        } else if (currentImageURL && ![currentImageURL.absoluteString isEqualToString:self.currentImageURL.absoluteString]) {
+            self.currentImageURL = currentImageURL;
+            if (myCellModel.loadImageCallback) {
+                myCellModel.loadImageCallback(self.imageView, currentImageURL);
+            }
+        }
+    }
+
+    if (myCellModel.isImageZoomEnabled) {
+        self.imageView.transform = CGAffineTransformMakeScale(myCellModel.imageZoomScale, myCellModel.imageZoomScale);
+    } else {
+        self.imageView.transform = CGAffineTransformIdentity;
+    }
+}
+
+@end

SweetParty/第三方库/JXCategoryView/TitleImage/JXCategoryTitleImageCellModel.h

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+//
+//  JXCategoryTitleImageCellModel.h
+//  JXCategoryView
+//
+//  Created by jiaxin on 2018/8/8.
+//  Copyright © 2018年 jiaxin. All rights reserved.
+//
+
+#import "JXCategoryTitleCellModel.h"
+
+typedef NS_ENUM(NSUInteger, JXCategoryTitleImageType) {
+    JXCategoryTitleImageType_TopImage = 0,
+    JXCategoryTitleImageType_LeftImage,
+    JXCategoryTitleImageType_BottomImage,
+    JXCategoryTitleImageType_RightImage,
+    JXCategoryTitleImageType_OnlyImage,
+    JXCategoryTitleImageType_OnlyTitle,
+};
+
+@interface JXCategoryTitleImageCellModel : JXCategoryTitleCellModel
+
+@property (nonatomic, assign) JXCategoryTitleImageType imageType;
+
+@property (nonatomic, strong) id imageInfo;
+@property (nonatomic, strong) id selectedImageInfo;
+@property (nonatomic, copy) void(^loadImageBlock)(UIImageView *imageView, id info);
+
+@property (nonatomic, copy) void(^loadImageCallback)(UIImageView *imageView, NSURL *imageURL);
+
+@property (nonatomic, assign) CGSize imageSize;     //默认CGSizeMake(20, 20)
+
+@property (nonatomic, assign) CGFloat titleImageSpacing;    //titleLabel和ImageView的间距，默认5
+
+@property (nonatomic, assign, getter=isImageZoomEnabled) BOOL imageZoomEnabled;
+
+@property (nonatomic, assign) CGFloat imageZoomScale;
+
+@property (nonatomic, copy) NSString *imageName;    //加载bundle内的图片
+
+@property (nonatomic, strong) NSURL *imageURL;      //图片URL
+
+@property (nonatomic, copy) NSString *selectedImageName;
+
+@property (nonatomic, strong) NSURL *selectedImageURL;
+
+@end

SweetParty/第三方库/JXCategoryView/TitleImage/JXCategoryTitleImageCellModel.m

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+//
+//  JXCategoryTitleImageCellModel.m
+//  JXCategoryView
+//
+//  Created by jiaxin on 2018/8/8.
+//  Copyright © 2018年 jiaxin. All rights reserved.
+//
+
+#import "JXCategoryTitleImageCellModel.h"
+
+@implementation JXCategoryTitleImageCellModel
+
+@end

SweetParty/第三方库/JXCategoryView/TitleImage/JXCategoryTitleImageView.h

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+//
+//  JXCategoryTitleImageView.h
+//  JXCategoryView
+//
+//  Created by jiaxin on 2018/8/8.
+//  Copyright © 2018年 jiaxin. All rights reserved.
+//
+
+#import "JXCategoryTitleView.h"
+#import "JXCategoryTitleImageCell.h"
+#import "JXCategoryTitleImageCellModel.h"
+
+@interface JXCategoryTitleImageView : JXCategoryTitleView
+//imageInfo数组可以传入imageName字符串或者image的URL地址等，然后会通过loadImageBlock透传回来，把imageView对于图片的加载过程完全交给使用者决定。
+@property (nonatomic, strong) NSArray <id>*imageInfoArray;
+@property (nonatomic, strong) NSArray <id>*selectedImageInfoArray;
+@property (nonatomic, copy) void(^loadImageBlock)(UIImageView *imageView, id info);
+//图片尺寸。默认CGSizeMake(20, 20)
+@property (nonatomic, assign) CGSize imageSize;
+//titleLabel和ImageView的间距，默认5
+@property (nonatomic, assign) CGFloat titleImageSpacing;
+//图片是否缩放。默认为NO
+@property (nonatomic, assign, getter=isImageZoomEnabled) BOOL imageZoomEnabled;
+//图片缩放的最大scale。默认1.2，imageZoomEnabled为YES才生效
+@property (nonatomic, assign) CGFloat imageZoomScale;
+
+//下面的属性将会被弃用，请使用`imageInfoArray`、`selectedImageInfoArray`、`loadImageBlock`属性完成需求。
+//普通状态下的imageNames，通过[UIImage imageNamed:]方法加载
+@property (nonatomic, strong) NSArray <NSString *>*imageNames;
+//选中状态下的imageNames，通过[UIImage imageNamed:]方法加载。可选
+@property (nonatomic, strong) NSArray <NSString *>*selectedImageNames;
+//普通状态下的imageURLs，通过loadImageCallback回调加载
+@property (nonatomic, strong) NSArray <NSURL *>*imageURLs;
+//选中状态下的selectedImageURLs，通过loadImageCallback回调加载
+@property (nonatomic, strong) NSArray <NSURL *>*selectedImageURLs;
+//默认@[JXCategoryTitleImageType_LeftImage...]
+@property (nonatomic, strong) NSArray <NSNumber *> *imageTypes;
+//使用imageURL从远端下载图片进行加载，建议使用SDWebImage等第三方库进行下载。
+@property (nonatomic, copy) void(^loadImageCallback)(UIImageView *imageView, NSURL *imageURL);
+
+@end

SweetParty/第三方库/JXCategoryView/TitleImage/JXCategoryTitleImageView.m

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+//
+//  JXCategoryTitleImageView.m
+//  JXCategoryView
+//
+//  Created by jiaxin on 2018/8/8.
+//  Copyright © 2018年 jiaxin. All rights reserved.
+//
+
+#import "JXCategoryTitleImageView.h"
+#import "JXCategoryTitleImageCell.h"
+#import "JXCategoryTitleImageCellModel.h"
+#import "JXCategoryFactory.h"
+
+@implementation JXCategoryTitleImageView
+
+- (void)dealloc {
+    self.loadImageCallback = nil;
+}
+
+- (void)initializeData {
+    [super initializeData];
+
+    _imageSize = CGSizeMake(20, 20);
+    _titleImageSpacing = 5;
+    _imageZoomEnabled = NO;
+    _imageZoomScale = 1.2;
+}
+
+- (Class)preferredCellClass {
+    return [JXCategoryTitleImageCell class];
+}
+
+- (void)refreshDataSource {
+    NSMutableArray *tempArray = [NSMutableArray arrayWithCapacity:self.titles.count];
+    for (int i = 0; i < self.titles.count; i++) {
+        JXCategoryTitleImageCellModel *cellModel = [[JXCategoryTitleImageCellModel alloc] init];
+        [tempArray addObject:cellModel];
+    }
+    self.dataSource = [NSArray arrayWithArray:tempArray];
+    
+    if (!self.imageTypes || (self.imageTypes.count == 0)) {
+        NSMutableArray *types = [NSMutableArray arrayWithCapacity:self.titles.count];
+        for (int i = 0; i< self.titles.count; i++) {
+            [types addObject:@(JXCategoryTitleImageType_LeftImage)];
+        }
+        self.imageTypes = [NSArray arrayWithArray:types];
+    }
+}
+
+- (void)refreshCellModel:(JXCategoryBaseCellModel *)cellModel index:(NSInteger)index {
+    [super refreshCellModel:cellModel index:index];
+
+    JXCategoryTitleImageCellModel *myCellModel = (JXCategoryTitleImageCellModel *)cellModel;
+    myCellModel.loadImageCallback = self.loadImageCallback;
+    myCellModel.imageType = [self.imageTypes[index] integerValue];
+    myCellModel.imageSize = self.imageSize;
+    myCellModel.titleImageSpacing = self.titleImageSpacing;
+    if (self.imageInfoArray && self.imageInfoArray.count != 0) {
+        myCellModel.imageInfo = self.imageInfoArray[index];
+    }else if (self.imageNames && self.imageNames.count != 0) {
+        myCellModel.imageName = self.imageNames[index];
+    }else if (self.imageURLs && self.imageURLs.count != 0) {
+        myCellModel.imageURL = self.imageURLs[index];
+    }
+    if (self.selectedImageInfoArray && self.selectedImageInfoArray.count != 0) {
+        myCellModel.selectedImageInfo = self.selectedImageInfoArray[index];
+    }else if (self.selectedImageNames && self.selectedImageNames.count != 0) {
+        myCellModel.selectedImageName = self.selectedImageNames[index];
+    }else if (self.selectedImageURLs && self.selectedImageURLs.count != 0) {
+        myCellModel.selectedImageURL = self.selectedImageURLs[index];
+    }
+    myCellModel.imageZoomEnabled = self.imageZoomEnabled;
+    myCellModel.imageZoomScale = ((index == self.selectedIndex) ? self.imageZoomScale : 1.0);
+}
+
+- (void)refreshSelectedCellModel:(JXCategoryBaseCellModel *)selectedCellModel unselectedCellModel:(JXCategoryBaseCellModel *)unselectedCellModel {
+    [super refreshSelectedCellModel:selectedCellModel unselectedCellModel:unselectedCellModel];
+
+    JXCategoryTitleImageCellModel *myUnselectedCellModel = (JXCategoryTitleImageCellModel *)unselectedCellModel;
+    myUnselectedCellModel.imageZoomScale = 1.0;
+
+    JXCategoryTitleImageCellModel *myselectedCellModel = (JXCategoryTitleImageCellModel *)selectedCellModel;
+    myselectedCellModel.imageZoomScale = self.imageZoomScale;
+}
+
+- (void)refreshLeftCellModel:(JXCategoryBaseCellModel *)leftCellModel rightCellModel:(JXCategoryBaseCellModel *)rightCellModel ratio:(CGFloat)ratio {
+    [super refreshLeftCellModel:leftCellModel rightCellModel:rightCellModel ratio:ratio];
+
+    JXCategoryTitleImageCellModel *leftModel = (JXCategoryTitleImageCellModel *)leftCellModel;
+    JXCategoryTitleImageCellModel *rightModel = (JXCategoryTitleImageCellModel *)rightCellModel;
+
+    if (self.isImageZoomEnabled) {
+        leftModel.imageZoomScale = [JXCategoryFactory interpolationFrom:self.imageZoomScale to:1.0 percent:ratio];
+        rightModel.imageZoomScale = [JXCategoryFactory interpolationFrom:1.0 to:self.imageZoomScale percent:ratio];
+    }
+}
+
+- (CGFloat)preferredCellWidthAtIndex:(NSInteger)index {
+    if (self.cellWidth == JXCategoryViewAutomaticDimension) {
+        CGFloat titleWidth = [super preferredCellWidthAtIndex:index];
+        JXCategoryTitleImageType type = [self.imageTypes[index] integerValue];
+        CGFloat cellWidth = 0;
+        switch (type) {
+            case JXCategoryTitleImageType_OnlyTitle:
+                cellWidth = titleWidth;
+                break;
+            case JXCategoryTitleImageType_OnlyImage:
+                cellWidth = self.imageSize.width;
+                break;
+            case JXCategoryTitleImageType_LeftImage:
+            case JXCategoryTitleImageType_RightImage:
+                cellWidth = titleWidth + self.titleImageSpacing + self.imageSize.width;
+                break;
+            case JXCategoryTitleImageType_TopImage:
+            case JXCategoryTitleImageType_BottomImage:
+                cellWidth = MAX(titleWidth, self.imageSize.width);
+                break;
+        }
+        return cellWidth;
+    }
+    return self.cellWidth;
+}
+
+@end