如何在UIBar按钮上添加徽章，如UITabBarController？

Question

我想知道如何为UIButton设置徽章，如UITabBarController Badge？

Answer 1

您只想将背景图像添加到按钮

    UIImage *image = [UIImage imageNamed:@"YourBadge.png"];
    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(200.0, 10.0, 20.0, 20.0); // or whatever dimensions you want
    [button setBackgroundImage:image forState:UIControlStateNormal];

Answer 2

您可以使用MKNumberBadgeView。