TSMenuLabel 给 Label 加 menuController 的控件 项目简介
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:添加事件在枚举中添加一个枚举,比如TSMneuLabelTypeDemotypedef 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];
}
}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;
}
}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);
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:添加事件在枚举中添加一个枚举,比如TSMneuLabelTypeDemotypedef 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];
}
}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;
}
}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);