JXCategoryView的使用总结

一、初始化

-(JXCategoryTitleView *)categoryView{if (!_categoryView) {_categoryView = [[JXCategoryTitleView alloc] init];_categoryView.delegate = self;_categoryView.titleDataSource = self;_categoryView.averageCellSpacingEnabled = NO; //是否平均分配项目之间的间距_categoryView.contentEdgeInsetLeft = 24; //靠左显示的边距_categoryView.titleLabelVerticalOffset = -5; //标题向上偏移_categoryView.cellSpacing = 32; //固定分类项之前的间距_categoryView.titles = @[];_categoryView.defaultSelectedIndex = 0; //默认选中_categoryView.titleColor = RGBA(119, 119, 119, 1);           //默认文字颜色_categoryView.titleSelectedColor = RGBA(51, 51, 51, 1);   //文字选择颜色_categoryView.backgroundColor = [UIColor clearColor];_categoryView.titleFont = AppFont(16);_categoryView.titleSelectedFont = AppBoldFont(16);//底部指示器JXCategoryIndicatorLineView *lineView = [[JXCategoryIndicatorLineView alloc] init];lineView.verticalMargin = 10; //默认底部，越大越向上偏移lineView.indicatorHeight = 3; //指示器高度lineView.indicatorCornerRadius = 0; //是否倒圆角lineView.indicatorColor = RGBA(72, 142, 255, 1); //指示器颜色lineView.indicatorWidth = 24; //指示器宽度lineView.scrollStyle = JXCategoryIndicatorScrollStyleSameAsUserScroll; //指示器滚动样式_categoryView.indicators = @[lineView]; }return _categoryView;
}

二、关联listContainerView

• listContainerView 创建

-(JXCategoryListContainerView *)listContainerView{if (!_listContainerView) {_listContainerView = [[JXCategoryListContainerView alloc] initWithType:JXCategoryListContainerType_ScrollView delegate:self];_listContainerView.scrollView.scrollEnabled = YES;}return _listContainerView;
}

• 与categoryView 建立关联

self.categoryView.listContainer = self.listContainerView;

• 实现listContainerView 代理

//子控制器数组
- (NSArray<__kindof UIViewController *> *)controllers{return @[self.VC1,self.VC2,];
}#pragma mark - JXCategoryListContainerViewDelegate -
- (id<JXCategoryListContentViewDelegate>)listContainerView:(JXCategoryListContainerView *)listContainerView initListForIndex:(NSInteger)index{__kindof UIViewController *vc  = self.controllers[index];return vc;
}
- (NSInteger)numberOfListsInlistContainerView:(JXCategoryListContainerView *)listContainerView {return self.controllers.count;
}//定义scrollerview处理手势冲突
- (Class)scrollViewClassInlistContainerView:(JXCategoryListContainerView *)listContainerView{return [ServiceScrollView class];
}

三、titles 重载

可以在初始化时指定titles属性赋值， 如果需要动态显示titles， 则可以在处理后，通过 reloadData 进行重载

• 初始化时指定

_categoryView.titles = @[@"项目1",@"项目2"];

• 动态处理

NSArray *titles;
if (xxx) {titles = @[@"项目1",@"项目2"];
}else {titles = @[@"礼物1",@"礼物2"];
}
_categoryView.titles = titles;
[_categoryView reloadData];

四、设置指定项被选中

[self.categoryView selectItemAtIndex:0];

五、代理方法

#pragma mark - JXCategoryViewDelegate -//点击选中的情况才会调用该方法
- (void)categoryView:(JXCategoryBaseView *)categoryView didClickSelectedItemAtIndex:(NSInteger)index {}

六、listContentView 需实现 listView 方法

@protocol JXCategoryListContentViewDelegate <NSObject>/**如果列表是VC，就返回VC.view如果列表是View，就返回View自己@return 返回列表视图*/
- (UIView *)listView;@optional/**可选实现，列表将要显示的时候调用*/
- (void)listWillAppear;/**可选实现，列表显示的时候调用*/
- (void)listDidAppear;/**可选实现，列表将要消失的时候调用*/
- (void)listWillDisappear;.....

根据协议声明来看， listView方法需要协议的实现者必须 实现才可以。 因为它是 @required (不指定，则为默认)声明的

#pragma mark - JXCategoryListContainerViewDelegate -
- (id<JXCategoryListContentViewDelegate>)listContainerView:(JXCategoryListContainerView *)listContainerView initListForIndex:(NSInteger)index{__kindof UIViewController *vc  = self.controllers[index];return vc;
}

- (id<JXCategoryListContentViewDelegate>)listContainerView:(JXCategoryListContainerView *)listContainerView initListForIndex:(NSInteger)index 这个回调需要返回实现了 JXCategoryListContentViewDelegate 的对象（一般是viewController）

@implementation MyContentViewController //实现 JXCategoryListContentViewDelegate 的代理方法
- (UIView *)listView{return self.view;
}@end