IOS學習筆記37——UIPasteboard/UIMenuController（三）

這篇咱總結總結自訂剪貼簿的使用

其實自訂剪貼簿也非常簡單，無非是放開回應時間，通過UIMenuController自訂剪貼簿，然後就是最關鍵的實現你所用的copy方法拉。

為了方便實用，我給cell添加了長按事件，看代碼---

UILongPressGestureRecognizer *recognizer = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPress:)];

    [cell addGestureRecognizer:recognizer];

好，事件加上了，剩下的點擊就是實現自訂剪貼簿了，上代碼：

- (void)longPress:(UILongPressGestureRecognizer *)recognizer{

       if (recognizer.state == UIGestureRecognizerStateBegan) {

             CopyCell *cell = (CopyCell *)recognizer.view;

             [cell becomeFirstResponder];

            UIMenuItem *flag = [[UIMenuItem alloc] initWithTitle:@"Flag"action:@selector(flag:)];

            UIMenuItem *approve = [[UIMenuItem alloc] initWithTitle:@"Approve"action:@selector(approve:)];

            UIMenuItem *deny = [[UIMenuItem alloc] initWithTitle:@"Deny"action:@selector(deny:)];

            UIMenuController *menu = [UIMenuController sharedMenuController];

 

        [menu setMenuItems:[NSArray arrayWithObjects:flag, approve, deny, nil]];

 

        NSLog(@".....%@",NSStringFromCGRect(cell.frame));

        [menu setTargetRect:cell.frame inView:cell.superview];

 

        [menu setMenuVisible:YES animated:YES];

      }

}

通過上面這段代碼，自訂剪貼簿成功搞定，運行，你猛然會發現，操，怎麼剪貼簿沒有出來，我猜你已經想到為什麼了，因為
- (BOOL)canBecomeFirstResponder{

    return YES;

}

這麼重要的一句話沒有加，OK，下面就是你所要使用的方法了

- (void)flag:(id)sender {

 

    NSLog(@"Cell was flagged");

 

}

- (void)approve:(id)sender {

 

    NSLog(@"Cell was approved");

}

 

- (void)deny:(id)sender {

 

    NSLog(@"Cell was denied");

 

}

好，這就是基本的剪貼簿的自訂使用了，為了更直觀，上述三篇文章均由下面相似的一張