多标签切换界面解耦,分散代码,避免一个类中代码成千上万行；

思路简单, 效果很好；

思路: 当前控制器添加其他控制器为子控制器, 根据标签切换显示子控制器的View, 关键是新建一个UIView做容器；

网上虽然有许多现成的轮子，但是建议自己亲手实现一次，彻底理解之后再使用现成的轮子。我们既要知道怎么用，又要知道为什么；造轮子才是程序员的核心能力。

OneViewController *viewController1 = [[OneViewController alloc] init];
[self addChildViewController:viewController1];

TwoViewController *viewController2 = [[TwoViewController alloc] init];
[self addChildViewController:viewController2];

ThreeViewController *viewController3 = [[ThreeViewController alloc] init];
[self addChildViewController:viewController3];

FourViewController *viewController4 = [[FourViewController alloc] init];
[self addChildViewController:viewController4];

FiveViewController *viewController5 = [[FiveViewController alloc] init];
[self addChildViewController:viewController5];


- (void)goChangeViewWithIndex:(NSInteger)index{

UIView *view = [[self.childViewControllers firstObject]view];
if ([self.typeCar isEqualToString:@"0"]) {
    view = [self.childViewControllers[index] view];
    
}else{
    switch (index) {
        case 0:
        {
            view = [self.childViewControllers[3] view];

        }
            break;
        case 1:
        {
            view = [self.childViewControllers[4] view];

        }
            break;
        default:
            break;
    }
}
  [self.containView addSubview:view];
  [self.containView bringSubviewToFront:view];
}

image

[图片上传中...(image-56e933-1510043511141-3)]

image

image

image