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IOS学习笔记37——UIPasteboard/UIMenuController(三)

这篇咱总结总结自定义剪贴板的使用

其实自定义剪贴板也非常简单,无非是放开响应时间,通过UIMenuController自定义剪贴板,然后就是最关键的实现你所用的copy方法拉。

为了方便实用,我给cell添加了长按事件,看代码---


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

    [cell addGestureRecognizer:recognizer];

好,事件加上了,剩下的点击就是实现自定义剪贴板了,上代码:


- (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];

      }

}

通过上面这段代码,自定义剪贴板成功搞定,运行,你猛然会发现,操,怎么剪贴板没有出来,我猜你已经想到为什么了,因为
- (BOOL)canBecomeFirstResponder{

    return YES;

}

这么重要的一句话没有加,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,这就是基本的剪贴板的自定义使用了,为了更直观,上述三篇文章均由下面相似的效果图一张

 

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补充:移动开发 , IOS ,
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