网上搜索ios tab会有很多例子。本文我写一篇，自定义的tab，主要和其他不同：1.文本会适应；2.右上角有可定制的提示框。
屏幕快照 2019-08-18 15.48.18.png
提供很多定制属性：
/**
水平方向两边的间距 默认为0
*/
@property (nonatomic,assign) float horizontalMargin;
/**
顶部的间距 默认为0
*/
@property (nonatomic,assign) float topMargin;
/**
底部的间距 默认为0
*/
@property (nonatomic,assign) float bottomMargin;
/**
文案的数组
*/
@property (nonatomic,strong) NSArray *titles;
/**
指定选中位置 默认为 0
*/
@property (nonatomic,assign) NSInteger selectIndex;
/**
* 单个item背景色,默认白色
*/
@property (nonatomic,strong)UIColor *itemBackColor;
/**
字体字号 默认14号
*/
@property (nonatomic,assign) float fontSize;
/**
* 底部移动线条颜色
*/
@property (nonatomic,strong)UIColor *lineColor;
/**
横线相对文字长度内缩举例 默认线为20
*/
@property (nonatomic,assign) float linePadding;
/**
* 默认字体颜色
*/
@property (nonatomic,strong)UIColor *itemColor;
/**
* 选中颜色
*/
@property (nonatomic,strong)UIColor *itemSelctedColor;
/**
选中位置后回调
*/
@property (nonatomic,copy) IndexChangeBlock indexChangeBlock;
/**
显示右上角图标提示
@param index 第几个tab，默认从0开始
@param title 显示的文案
@param badgeStyleDict 图标样式 非必传
{
@"backColor":@"#ffffff",默认橘黄色
@"textColor":@"#ccccc",默认白色
@"textSize":@(10) 默认10号
}
@
*/
- (void)showBadgeAtIndex:(NSInteger)index title:(NSString *)title badgeStyle:(NSDictionary *)badgeStyleDict;
调用方法也十分简单
self.tabBarView = [[ZHXTabBarView alloc]initWithFrame:CGRectMake(0, 170, screen_width, 50) titles:@[@"男装",@"女装",@"儿童服装"]];
[self.view addSubview:self.tabBarView];
self.tabBarView.horizontalMargin = 20;
self.tabBarView.fontSize = 15;
self.tabBarView.lineColor = [UIColor blueColor];
self.tabBarView.linePadding = 5;
self.tabBarView.itemColor = [UIColor blackColor];
self.tabBarView.itemSelctedColor = [UIColor blueColor];
[self.tabBarView showBadgeAtIndex:1 title:@"减80" badgeStyle:@{@"backColor":@"#cccccc",@"textColor":@"#ffffff"}];
[self.tabBarView setIndexChangeBlock:^(NSInteger index) {
NSLog(@"%ld位置",index);
}];
self.tabBarTwoView = [[ZHXTabBarView alloc]initWithFrame:CGRectMake(0, 300, screen_width, 50) titles:@[@"服务家电",@"电子商品"]];
[self.view addSubview:self.tabBarTwoView];
self.tabBarTwoView.backgroundColor = [UIColor grayColor];
self.tabBarTwoView.horizontalMargin = 0;
self.tabBarTwoView.fontSize = 15;
self.tabBarTwoView.lineColor = [UIColor redColor];
self.tabBarTwoView.linePadding = 5;
self.tabBarTwoView.itemColor = [UIColor blackColor];
self.tabBarTwoView.itemSelctedColor = [UIColor redColor];
[self.tabBarTwoView showBadgeAtIndex:0 title:@"大促销" badgeStyle:@{@"backColor":@"#cccccc",@"textColor":@"#ffffff"}];
[self.tabBarTwoView setIndexChangeBlock:^(NSInteger index) {
NSLog(@"%ld位置",index);
}];
self.tabBarThreeView = [[ZHXTabBarView alloc]initWithFrame:CGRectMake(0, 400, screen_width, 50) titles:@[@"机票",@"酒店",@"汽车/船票",@"火车票"]];
[self.view addSubview:self.tabBarThreeView];
self.tabBarThreeView.backgroundColor = [UIColor lightGrayColor];
self.tabBarThreeView.horizontalMargin = 0;
self.tabBarThreeView.fontSize = 15;
self.tabBarThreeView.lineColor = [UIColor cyanColor];
self.tabBarThreeView.linePadding = 5;
self.tabBarThreeView.selectIndex = 2;
self.tabBarThreeView.itemColor = [UIColor blackColor];
self.tabBarThreeView.itemSelctedColor = [UIColor cyanColor];
[self.tabBarThreeView setIndexChangeBlock:^(NSInteger index) {
NSLog(@"%ld位置",index);
}];
