How to add small red dot in UITabBarItem

Question

How to add red dot on the top right side of the UITabBarItem.

I h

Answer 1

i test this question's answer. but not work on iPad. now i found that, when u add this on iPhone, tabBarItem left and right margin is 2, and each items margin is 4. Code as below:

    NSInteger barItemCount = self.tabBar.items.count;

    UITabBarItem *barItem = (UITabBarItem *)self.tabBar.items[index];
    CGFloat imageHalfWidth = barItem.image.size.width / 2.0;

    CGFloat barItemWidth = (BXS_WINDOW_WIDTH - barItemCount * 4) / barItemCount;
    CGFloat barItemMargin = 4;
    CGFloat redDotXOffset = barItemMargin / 2 + barItemMargin * index + barItemWidth * (index + 0.5);

and iPad as below:

    barItemWidth = 76;
    barItemMargin = 34;
    redDotXOffset = (BXS_WINDOW_WIDTH - 76 * barItemCount - 34 * (barItemCount - 1)) / 2.0 + 76 * (index + 0.5) + 34 * index;

Hope this is useful.