自定义Tabbar的badgeView

2019-11-07 23:26:22

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来源：转载

供稿：网友

UITabBar类别.h文件

#import <UIKit/UIKit.h>@interface UITabBar (Badge)- (void)showBadgeOnItemIndex:(int)index; //显示小红点- (void)hideBadgeOnItemIndex:(int)index; //隐藏小红点@end

UITabBar类别.m文件

#import "UITabBar+Badge.h"#define TABBARCount 4 //tabbar个数@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 CGRect tabFrame = self.frame; //确定小红点的位置 float percentX = (index +0.7)/TABBARCount ; CGFloat x = ceilf(percentX * tabFrame.size.width); CGFloat y = ceilf(0.1 * tabFrame.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]; } }}@end

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