UITabBar小红点(适配iPad)
一、解决上面问题可以采取遍历UITabBarButton的方法获取item的宽度
CGFloat tabBarItemWidth = 0; for (UIView *view in [self subviews]) { if ([view isKindOfClass:NSClassFromString(@"UITabBarButton")]) { if (tabBarItemWidth == 0) { tabBarItemWidth = view.frame.origin.x; NSLog(@"----%f",tabBarItemWidth); } else { tabBarItemWidth = view.frame.origin.x - tabBarItemWidth; break; } } }
二、自定bageValue适配 iPhone和iPad(系统self.tabBarController.tabBarItem.badgeValue就可以)
1、UITabBar+badge.h
- (void)showBadgeOnItemIndex:(int)index; //显示小红点 - (void)hideBadgeOnItemIndex:(int)index; //隐藏小红点
2、UITabBar+badge.m
* *使用需要设置参数 tabbar的个数 */ #define TabbarItemNums 4 //tabbar的数量 如果是5个设置5 @implementation UITabBar (badge) //显示小红点 - (void)showBadgeOnItemIndex:(int)index{ //移除之前的小红点 [self removeBadgeOnItemIndex:index]; //新建小红点 UIView *badgeView = [[UIView alloc]init]; badgeView.tag = 888 + index; badgeView.layer.cornerRadius = 5;//圆形 badgeView.backgroundColor = [UIColor redColor];//颜色:红色 CGFloat tabBarItemWidth = 0; for (UIView *view in [self subviews]) { if ([view isKindOfClass:NSClassFromString(@"UITabBarButton")]) { if (tabBarItemWidth == 0) { tabBarItemWidth = view.frame.origin.x; NSLog(@"----%f",tabBarItemWidth); } else { tabBarItemWidth = view.frame.origin.x - tabBarItemWidth; break; } } } //计算iPad两边的宽度 CGFloat Padding = (kScreenWidth-tabBarItemWidth*TabbarItemNums)/2; //计算小红点的xy坐标 (0.6 0.1属于百分比可以自己定义) CGFloat x = Padding + index*tabBarItemWidth +tabBarItemWidth*0.6; CGFloat y = 0.1 * self.frame.size.height; badgeView.frame = CGRectMake(x, y, 10, 10);//圆形大小为10 [self addSubview:badgeView]; } //隐藏小红点 - (void)hideBadgeOnItemIndex:(int)index{ //移除小红点 [self removeBadgeOnItemIndex:index]; } //移除小红点 - (void)removeBadgeOnItemIndex:(int)index{ //按照tag值进行移除 for (UIView *subView in self.subviews) { if (subView.tag == 888+index) { [subView removeFromSuperview]; } } } /* *使用时: *显示 *[self.tabBarController.tabBar showBadgeOnItemIndex:2]; *隐藏 *[self.tabBarController.tabBar hideBadgeOnItemIndex:2] * */