TSMenuLabel 给UILabel加menuController的控件

TSMenuLabel是一个给Label加menuController的控件

0. 需求分析

需要复制商品标题,需要在Label上加MenuController,但是UILabel是自己不带MenuController,所以自己写了一个

1. 效果

TSMenuLabel 是继承自UILabel的控件,给UILabel添加了手势,并添加了menuViewController,点击会有事件

效果查看:

2. 封装方法

/** 初始化方法 @param menuType 弹窗类型 @param gestureType 手势类型 @return 返回label */+ (instancetype)mneuLabelWithMenuType:(TSMneuLabelMenuType)menuType                       andGestureType:(TSMneuLabelGestureType)gestureType;

3. 原理

让UILabel能处理MenuControler,需要设置以下代码

- (BOOL)canBecomeFirstResponder{    return YES;}/** * label能执行哪些操作(比如copy, paste等等) * @return  YES:支持这种操作 *  由于这里需要实现自定义的中文菜单，而不是使用默认的，所以这里选择NO */- (BOOL)canPerformAction:(SEL)action withSender:(id)sender{    //这里也是间接影响显示在UIMenuController的控件    if (action == @selector(copy:)) {        return YES;//如果要去掉 拷贝 这里返回NO    }else if (action == @selector(flag:)){        return NO;//这里如果是no 就不允许操作和显示    }else if (action == @selector(approve:)){        return YES;    }else if (action == @selector(deny:)){        return YES;    }else{        return [super canPerformAction:action withSender:sender];    }}

4. 扩展

更多手势和事件需要自己添加,添加方法:
1. 添加事件

在枚举中添加一个枚举,比如TSMneuLabelTypeDemo

typedef NS_ENUM(NSInteger, TSMneuLabelMenuType) {    TSMneuLabelTypeDefault,//啥也没有    TSMneuLabelTypeCopy = 1,//只有复制    TSMneuLabelTypeDemo,//栗子};

在处理手势中添加menu

-(void)handleTap:(UIGestureRecognizer*) recognizer{        case TSMneuLabelTypeDemo:{            UIMenuItem *flag = [[UIMenuItem alloc] initWithTitle:@"abc" action:@selector(flag:)];            UIMenuItem *approve = [[UIMenuItem alloc] initWithTitle:@"Approve" action:@selector(approve:)];            UIMenuItem *deny = [[UIMenuItem alloc] initWithTitle:@"分享" action:@selector(deny:)];            [menu setMenuItems:@[approve,flag,deny]];        }            break;}

添加事件

- (void)approve:(id)sender {    NSLog(@"Approve");}

允许事件

- (BOOL)canPerformAction:(SEL)action withSender:(id)sender{    //这里也是间接影响显示在UIMenuController的控件    if (action == @selector(copy:)) {        return YES;//如果要去掉 拷贝 这里返回NO    }else if (action == @selector(flag:)){        return NO;//这里如果是no 就不允许操作和显示    }else if (action == @selector(approve:)){        return YES;    }else if (action == @selector(deny:)){        return YES;    }else{        return [super canPerformAction:action withSender:sender];    }}

1. 添加手势

首先添加一个枚举

typedef NS_ENUM(NSInteger, TSMneuLabelGestureType) {    TSMneuLabelGestureTypeNone,//强制不作处理    TSMneuLabelGestureTypeDefault = 0,//没赋值会走tap    TSMneuLabelGestureTypeTap,//默认单击    TSMneuLabelGestureTypeLongTap,//长按};

然后添加一个手势

- (void)setGestureType:(TSMneuLabelGestureType)gestureType{    //移除所有手势    for (UIGestureRecognizer *ges in self.gestureRecognizers) {        [self removeGestureRecognizer:ges];    }    switch (gestureType) {        case TSMneuLabelGestureTypeTap: {            UITapGestureRecognizer *touch = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTap:)];            touch.numberOfTapsRequired = 1;            [self addGestureRecognizer:touch];        }            break;        case TSMneuLabelGestureTypeLongTap: {            UILongPressGestureRecognizer *touch = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(handleTap:)];            [self addGestureRecognizer:touch];        }            break;        default:            break;    }}

1. 更多

   • 抛出事件可以利用已经定义好的Block来处理

typedef void(^TSMneuLabelHandler)(TSMneuLabel * menuLabel);

git地址->https://github.com/TsnumiDC/TSMenuLabel