textView中自定义选择内容后的菜单

首先通过storyboard创建textView,然后设置属性

接下来看如下代码

#import "ViewController.h"

@interface ViewController ()<UITextViewDelegate>

@property (strong, nonatomic) IBOutlet UITextView *textView;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    //创建两个菜单项
    UIMenuItem *weibo = [[UIMenuItem alloc]initWithTitle:@"微博分享" action:@selector(weoboshare:)];
    UIMenuItem *weixin = [[UIMenuItem alloc]initWithTitle:@"微信分享" action:@selector(weixinShare:)];
    //创建UIMenuController控制器添加两个菜单项
    UIMenuController *menu = [[UIMenuController alloc]init];
    [menu setMenuItems:[NSArray arrayWithObjects:weibo,weixin, nil]];
}
// 重写UIResponder的cancanPerformAction:(SEL)action withSender:(id)sender的方法
//当该方法返回YES时，该界面将会显示该Action对应的控件
-(BOOL)canPerformAction:(SEL)action withSender:(id)sender
{
//    如果Action显示的是weoboshare：或weixinShare：的方法
    if (action == @selector(weoboshare:)||action == @selector(weixinShare:)) {
        //若果textView选中的长度大于0，返回YES
        //当该方法返回YES时，该Action对应的控件就会显示出来
        if (self.textView.selectedRange.length>0) {
            return YES;
        }
    }
    return NO;
    
}
-(void)weoboshare:(id)sender
{
    NSLog(@"这是在模拟微博分享");
}
-(void)weixinShare:(id)sender
{
    NSLog(@"这是在模拟通过微信分享");
}


@end
           

最终效果图：