更好用的仿微信、QQ弹框控件

本文来自简书，原文地址:http://www.jianshu.com/p/f057a2250c68

先上效果图

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前些时间在项目开发中用到这个带箭头的弹出框功能，为了开发进度，就随便在gitHub上找了个轮子使用了，也能实现我想要的功能，但是就是感觉不是想要的那种封装方式，使用起来比较麻烦，能不能像使用系统框架UIMenuController那样方便的使用这一控件呢？抱着这个想法，闲暇时间开始了HHPopController的探索

首先这个自定义控件使用起来非常简单方便，且可定制性很高，你只需要像下面这样使用

    HHPopItem *item1 = [HHPopItem itemWithImage:[UIImage imageNamed:@"ic_addvoucher_qrcode"] title:@"创建群聊"];    HHPopItem *item2 = [HHPopItem itemWithImage:[UIImage imageNamed:@"ic_addvoucher_cinema"] title:@"加好友/群"];    HHPopItem *item3 = [HHPopItem itemWithImage:[UIImage imageNamed:@"ic_addvoucher_input"] title:@"面对面快传"];    [HHPopController applyPopStyle:^(HHPopStyle *style) {        style.borderColor = [UIColor cyanColor];        style.borderWidth = 1.0f;        style.itemTextColor = [UIColor whiteColor];        style.dimColor = [UIColor colorWithWhite:0.1 alpha:0.3];        style.itemBgColor = [UIColor colorWithWhite:0.3 alpha:1.0];//        HHPopSupplementaryStyle *header = [HHPopSupplementaryStyle defaultStyle];//        header.bgColor = style.itemBgColor;//        header.title = @"header";//        header.titleColor = [UIColor whiteColor];//        style.header = header;//        //        HHPopSupplementaryStyle *footer = [HHPopSupplementaryStyle defaultStyle];//        footer.bgColor = style.itemBgColor;//        footer.title = @"footer";//        footer.titleColor = [UIColor whiteColor];//        style.footer = footer;    }];    [HHPopController popSourceView:btn popItems:@[item1, item2, item3] selectionHandler:^(NSInteger idx, HHPopItem *item) {        NSLog(@"%@", item.title);    }];

先来看下类HHPopItem的定义

/// 弹出视图数据模型@interface HHPopItem : NSObject+ (instancetype)itemWithTitle:(NSString *)title;+ (instancetype)itemWithImage:(UIImage *)image title:(NSString *)title;@property (nonatomic, strong)UIImage *image;@property (nonatomic, strong)NSString *title;- (void)setHandler:(void (^)(NSInteger idx, HHPopItem *item))handler;@end

这里你可以创建只含有标题或者含有图片和标题两种样式，并且可以通过block配置点击的回调

方法+ (void)applyPopStyle:(void (^)(HHPopStyle *style))maker;通过block传进一个模型来配置该控件所有的样式，可定制的属性如下

/// 弹出视图样式模型@interface HHPopStyle : NSObject/// 弹出视图的宽度@property (nonatomic, assign)CGFloat popWidth;/// 边框颜色@property (nonatomic, strong)UIColor *borderColor;/// 边框宽度@property (nonatomic, assign)CGFloat borderWidth;/// 行高@property (nonatomic, assign)CGFloat rowHeight;/// 圆角尺寸@property (nonatomic, assign)CGFloat cornerRadius;/// 蒙版颜色@property (nonatomic, strong)UIColor *dimColor;/// 箭头方向@property (nonatomic, assign)HHArrowStyle arrowStyle;/// 箭头离矩形边框的距离大小@property (nonatomic, assign)CGFloat arrowDistanceFromTargetRectBorder;/// 箭头尺寸, 对应三角形的宽高 default {15, 8}@property (nonatomic, assign)CGSize arrowSize;/// 弹框显现的区域限制@property (nonatomic, assign)UIEdgeInsets popAreaEdgeLimits;/// 出现的动画时间 default 0.25@property (nonatomic, assign)CGFloat animationIn;/// 小时的动画时间 default 0.25@property (nonatomic, assign)CGFloat animationOut;/// 是否能滚动 当弹框范围能够容纳的下为NO, 否则为YES@property (nonatomic, assign)BOOL bounces;/// 分割线颜色@property (nonatomic, strong)UIColor *separatorColor;/// 分割线内边距@property (nonatomic, assign)UIEdgeInsets separatorInset;/// 选项的背景颜色@property (nonatomic, strong)UIColor *itemBgColor;/// 选项的图片内容模式@property (nonatomic, assign)UIViewContentMode itemImageContentMode;/// 选项文字对齐方式@property (nonatomic, assign)NSTextAlignment itemTextAligment;/// 选项文字字体@property (nonatomic, strong)UIFont *itemTextFont;/// 选项文字颜色@property (nonatomic, strong)UIColor *itemTextColor;/// 头部样式@property (nonatomic, strong)HHPopSupplementaryStyle *header;/// 尾部样式@property (nonatomic, strong)HHPopSupplementaryStyle *footer;+ (instancetype)defaultStyle;@end

看注释应该很明显了，其中这里还可以通过HHPopSupplementaryStyle模型来配置头部数据和尾部数据，其实就是UITableView的header和footer，HHPopSupplementaryStyle的定义如下

/// 弹出视图的追加视图模型 (header and footer)@interface HHPopSupplementaryStyle : NSObject/// 标题@property (nonatomic, copy)NSString *title;/// 标题高度@property (nonatomic, assign)CGFloat height;/// 标题文字对齐方式@property (nonatomic, assign)NSTextAlignment titleAligment;/// 标题文字颜色@property (nonatomic, strong)UIColor *titleColor;/// 标题背景颜色@property (nonatomic, assign)UIColor *bgColor;/// 标题文字字体@property (nonatomic, strong)UIFont *titleFont;/// 自定义头部视图@property (nonatomic, strong)UIView *customView;+ (instancetype)defaultStyle;@end

HHArrowStyle是个枚举类型

/// 箭头方式typedef NS_ENUM(NSInteger, HHArrowStyle) {    HHArrowStyleVerticalDefault = 0, ///< up or down based on source view location in window    HHArrowStyleHorizontalDefault, ///< left or right based on source view location in window    HHArrowStyleUp,///< up force    HHArrowStyleDown,/// < down force    HHArrowStyleLeft,///< left force    HHArrowStyleRight///< right force};

如果不需要显示箭头可以设置arrowSize为CGSizeZero。
最后我们在看下HHPopController的定义

/// 弹出视图控制器@interface HHPopController : NSObject+ (void)applyReturnPopStyle:(HHPopStyle *(^)(HHPopStyle *style))maker;+ (void)applyPopStyle:(void (^)(HHPopStyle *style))maker;+ (void)popSourceView:(UIView *)view popItems:(NSArray<HHPopItem *> *)items selectionHandler:(void (^)(NSInteger idx, HHPopItem *item))handler;+ (void)popTargetRect:(CGRect)rect soureceView:(UIView *)view popItems:(NSArray<HHPopItem *> *)items selectionHandler:(void (^)(NSInteger idx, HHPopItem *item))handler;+ (BOOL)isPopVisible;+ (void)dismiss;@end

配置回调有两种方式，可以通过模型，也可以通过handler参数，使用起来是不是简单明了？既然封装就要封装的彻底点，外界怎么用着舒服就怎么来，嘿嘿，通过模型来配置一些属性，避开了要写一堆的代理方法或者block，但还是有一些缺点的，比如动画支持不是很丰富等

另外还可以通过以下通知名监听对应的通知

FOUNDATION_EXTERN NSString *const HHPopControllerWillPopNotification;FOUNDATION_EXTERN NSString *const HHPopControllerDidPopNotification;FOUNDATION_EXTERN NSString *const HHPopControllerWillHidenNotification;FOUNDATION_EXTERN NSString *const HHPopControllerDidHidenNotification;

可以通过cocopods安装使用

pod 'HHPopController'

好了，功能就这么多，有兴趣的可以看下源码，也很好理解，有什么问题或建议欢迎留言，如果能在开发中帮助到你也算没有白忙活，谢谢大家，喜欢的麻烦给个赞呗！
gitHub传送门https://github.com/theSkyOfJune/HHPopController