可收放选择器
GitHub: https://github.com/Weizh2013/ZACExtensionPicker
ZACExtensionPicker的配置与UITableView类似，顶部每个标签相当于一个Section，下面展开的选择视图相当于每个Row，所以对它的配置大家也就很熟悉了。
// 屏幕宽高
#define kSCREEN_WIDTH [UIScreen mainScreen].bounds.size.width
#define kSCREEN_HEIGHT [UIScreen mainScreen].bounds.size.height
// RGB的颜色转换
#define kUIColorFromRGB(rgbValue) [UIColor \
colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 \
green:((float)((rgbValue & 0xFF00) >> 8))/255.0 \
blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0]
// 带透明度的颜色转换
#define kUIColorFromARGB(argbValue) [UIColor \
colorWithRed:((float)((argbValue & 0xFF0000) >> 16))/255.0 \
green:((float)((argbValue & 0xFF00) >> 8))/255.0 \
blue:((float)(argbValue & 0xFF))/255.0 \
alpha:((float)((argbValue & 0xFF000000) >> 24))/255.0]@protocol ZACExtensionPickerViewDataSource <NSObject>
@required
/**
标题数量
*/
- (NSInteger)numberOfSectionInExtensionPicker:(ZACExtensionPickerView *)extensionPickerView;
/**
标题Cell
*/
- (ZACExtensionTitleCell *)extensionPickerView:(ZACExtensionPickerView *)extensionPickerView titleOfSection:(NSInteger)section;
/**
内容数量
*/
- (NSInteger)extensionPickerView:(ZACExtensionPickerView *)extensionPickerView numberOfContentOfSection:(NSInteger)section;
/**
内容Cell
*/
- (ZACExtesionContentCell *)extensionPickerView:(ZACExtensionPickerView *)extensionPickerView cellOfIndexPath:(NSIndexPath *)indexPath;
@end@protocol ZACExtensionPickerViewDelegate <NSObject>
@optional
/**
选择了某个IndexPath
*/
- (void)extensionPickerView:(ZACExtensionPickerView *)extensionPickerView didSelectRowAtIndexPath:(NSIndexPath *)indexPath;
/**
取消选择了某个IndexPath
*/
- (void)extensionPickerView:(ZACExtensionPickerView *)extensionPickerView didDeSelectRowAtIndexPath:(NSIndexPath *)indexPath;
/**
将要展开某个Section
*/
- (void)extensionPickerView:(ZACExtensionPickerView *)extensionPickerView willExtensionSection:(NSInteger)section;
/**
已经展开某个Section
*/
- (void)extensionPickerView:(ZACExtensionPickerView *)extensionPickerView didExtensionSection:(NSInteger)section;
/**
将要收起某个Section
*/
- (void)extensionPickerView:(ZACExtensionPickerView *)extensionPickerView willCloseSection:(NSInteger)section;
/**
已经收起某个Section
*/
- (void)extensionPickerView:(ZACExtensionPickerView *)extensionPickerView didCloseSection:(NSInteger)section;
/**
高度开始变化
*/
- (void)extensionPickerView:(ZACExtensionPickerView *)extensionPickerView willChangeHeight:(CGFloat)height;
/**
高度结束变化
*/
- (void)extensionPickerView:(ZACExtensionPickerView *)extensionPickerView didChangeHeight:(CGFloat)height;
@end/**
标题栏颜色
*/
@property (nonatomic , strong) UIColor *titleBgColor;
/**
mask类型
*/
@property (nonatomic , assign) ZACExtensionPickerMaskType maskType;
/**
数据源
*/
@property (nonatomic , weak) id<ZACExtensionPickerViewDataSource> dataSource;
/**
代理
*/
@property (nonatomic , weak) id<ZACExtensionPickerViewDelegate> delegate;
/**
* 初始化方法
* @param superView 父视图
* @param titleHeight 标题栏高度
* @param topConstraint 顶部约束
*/
- (instancetype)initWithSuperView:(__weak UIView *)superView
titleHeight:(CGFloat)titleHeight
topConstraint:(CGFloat)topConstraint NS_DESIGNATED_INITIALIZER;
- (instancetype)init NS_UNAVAILABLE;
- (instancetype)initWithFrame:(CGRect)frame NS_UNAVAILABLE;
- (instancetype)initWithCoder:(NSCoder *)aDecoder NS_UNAVAILABLE;
/**
重载View
*/
- (void)reloadData;
/**
收起View
*/
- (void)closeExtension;
/**
注册重用标识符
*/
- (void)registerNib:(UINib *)nib forTitleCellReuseIdentifier:(NSString *)reuseIdentifier;
- (void)registerClass:(nullable Class)class forTitleCellReuseIdentifier:(NSString *)reuseIdentifier;
- (void)registerNib:(UINib *)nib forContentCellReuseIdentifier:(NSString *)reuseIdentifier;
- (void)registerClass:(nullable Class)class forContentCellReuseIdentifier:(NSString *)reuseIdentifier;
/**
根据重用标识符获取相应的Cell
*/
- (ZACExtensionTitleCell *)dequeueReusableTitleCellWithIdentifier:(NSString *)reuseIdentifier forSection:(NSInteger)section;
- (ZACExtesionContentCell *)dequeueReusableContentCellWithIdentifier:(NSString *)reuseIdentifier;针对比较简单使用的ZACExtensionPickerView,我做了一个封装，先说明下其头文件，再给个示例代码
/**
常规图标
*/
@property (nonatomic , strong) UIImage *normalImage;
/**
常规字体
*/
@property (nonatomic , strong) UIFont *normalFont;
/**
常规字的颜色
*/
@property (nonatomic , strong) UIColor *normalColor;
/**
展开图标
*/
@property (nonatomic , strong) UIImage *extensionImage;
/**
展开字体
*/
@property (nonatomic , strong) UIFont *extensionFont;
/**
展开字的颜色
*/
@property (nonatomic , strong) UIColor *extensionColor;
/**
选择后图标
*/
@property (nonatomic , strong) UIImage *selectedImage;
/**
选择后字体
*/
@property (nonatomic , strong) UIFont *selectedFont;
/**
选择后字的颜色
*/
@property (nonatomic , strong) UIColor *selectedColor;
/**
被选中的IndexPath
*/
@property (nonatomic , strong, readonly) NSArray<NSIndexPath *> *selectedIndexPaths;
/**
* 重写 初始化方法
* @param superView 父视图
* @param topConstraint 顶部约束
*/
+ (instancetype)extensionViewWithSuperView:(__weak UIView *)superView
topConstrant:(CGFloat)topConstraint
completeHandler:(void(^)(NSIndexPath *indexPath))completeHandler;
/**
增加标题
*/
- (void)addTitle:(NSString *)title forContents:(NSArray *)contents;
/**
移除某个标题
*/
- (void)removeTitle:(NSString *)title;
/**
移除所有的标题
*/
- (void)removeAllTitles;ZACExtensionSimplePickerView *picker = [ZACExtensionSimplePickerView extensionViewWithSuperView:self.view topConstrant:64.0f completeHandler:^(NSIndexPath *indexPath) {
// 每次选中后，会调用该block
NSLog(@"选中了:(%ld,%ld)",indexPath.section,indexPath.row);
}];
[picker addTitle:@"城市" forContents:@[@"不限",@"北京",@"上海",@"广州"]];
[picker addTitle:@"行业" forContents:@[@"不限",@"计算机IT",@"金融",@"销售"]];
[picker addTitle:@"职位" forContents:@[@"不限",@"iOS工程师",@"安卓工程师",@"web前端"]];
[picker addTitle:@"排序" forContents:@[@"默认排序",@"按薪资由高到低",@"距离我远近"]];
...此处可以继续加，建议最多加四个，多了可能会影响视图效果
如果觉得对你还有些用，顺手点一下star吧 (｡♥‿♥｡) 你的支持是我继续的动力。