iOS中UIMenuController基本使用

我这里用了一个按钮，点击按钮的时候给弹出UIMenuController控件

下面的代码是按钮触发事件：

-(void)showPopupView:(UIButton *)button

{

button.selected = !button.selected;

//必须要有，如果要UIMenuController显示

[self
becomeFirstResponder];

_menuController = [UIMenuController
sharedMenuController];

UIMenuItem *menuitem_01 = [[UIMenuItem
alloc] initWithTitle:@"delete"
action:@selector(deleteAction)];

UIMenuItem *menuitem_02 = [[UIMenuItem
alloc] initWithTitle:@"copy"
action:@selector(copyAction)];

UIMenuItem *menuitem_03 = [[UIMenuItem
alloc] initWithTitle:@"cancel"
action:@selector(cancelAction)];

_menuController.menuItems = [NSArray
arrayWithObjects:menuitem_01, menuitem_02, menuitem_03,
nil];

[_menuController
setTargetRect:CGRectMake(button.frame.origin.x, button.frame.origin.y,
button.frame.size.width,
30) inView:self.view];

[_menuController
setMenuVisible:YES
animated:YES];

}

//必须要有，如果要UIMenuController显示

-(BOOL)canBecomeFirstResponder

{

return
true;

}

//监听自己的定义事件，是 return YES；
否 return NO
即移除系统；

-(BOOL)canPerformAction:(SEL)action withSender:(id)sender

{

if (action ==
@selector(deleteAction) || action == @selector(copyAction) || action ==
@selector(cancelAction)) {

return YES;

}

return
NO;

}



我想改变下UIMenuController的背景色，默认是黑色的，但是不知道怎么改动，如果你有办法请给我留言，谢谢！