UITextView自定义文字选择后的菜单

- (void)viewDidLoad {[super viewDidLoad];UIMenuItem *menuItem = [[UIMenuItem alloc] initWithTitle:@"分享到新浪微博" action:@selector(shareSina)];UIMenuController *menu = [UIMenuController sharedMenuController];[menu setMenuItems:[NSArray arrayWithObject:menuItem]];[menuItem release];}- (void) shareSina {NSLog(@"%@", [textview.text substringWithRange:textview.selectedRange]);}-(BOOL)canPerformAction:(SEL)action withSender:(id)sender {   if(action == @selector(shareSina)) {        if(textview.selectedRange.length > 0)return YES;   }   return NO;}

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