一个简单强大的路由库 - CRRouter

2017-05-27      41      Objective-C
项目简介

CRRouter

CRRouter是什么

CRRouter是一个利用URL注册,通过URL获取对象或者打开一个页面的模块解耦框架。

CRRouter提供了哪些功能

  • 通过一个URL获取一个对象
  • 通过一个URL打开相应页面
  • 参数验证
  • 参数映射

安装

CocoaPods

  1. 在Podfile中添加 pod "CRRouter".
  2. 输入命令pod install或者pod update.
  3. Import <CRRouter/CRRouter.h>.

如何使用

注册

CRRouter提供了2种注册方式

//第一种注册方式
CRRouteNode *routeNode = [CRRouteNode routeNodeWithURLScheme:@"cr" URLHost:@"goods" URLPath:@"/goodsDetail"];
[CRRouter registRouteNode:routeNode];
//第二种注册方式
[CRRouter registURLPattern:@"cr://goods/goodsDetail"]

参数映射

有时候我们需要从第三方app中打开我们app,并且进入某个页面。我们需要给他们提供scheme、host、path以及所需的参数,比如cr://goods/goodsDetail?goodsId=12389,但是我们不想告诉第三方页面所需要的真正参数名,所以我们告诉他们通过cr://goods/goodsDetail?p1=12389来打开商品详情页面,而我们真正需要的参数名是goodsId, CRRouter 提供了下面的方式来映射参数。

CRRouteNode *routeNode = [CRRouteNode routeNodeWithURLScheme:@"cr" URLHost:@"goods" URLPath:@"/goodsDetail"];

[routeNode paramsMap:^NSDictionary *(NSDictionary *originParams) {
    NSMutableDictionary *temp = [[NSMutableDictionary alloc] init];
    if(originParams[@"p1"]){
        //说明是第三方调用
        temp[@"goodsId"] = originParams[@"p1"];
     }
    [temp addEntriesFromDictionary:originParams];
    return temp;
 }];

So,对于我们内部仍然可以通过cr://goods/goodsDetail?goodsId=12389来调用,而第三方通过cr://goods/goodsDetail?p1=12389也可以调用到相应的模块

参数验证

以上面为例,打开一个商品详情页,一个goodsId是必须的, CRRouter 提供相应的参数验证

CRRouteNode *routeNode = [CRRouteNode routeNodeWithURLScheme:@"cr" URLHost:@"goods" URLPath:@"/goodsDetail"];

[routeNode paramsValidate:^BOOL(NSDictionary *originParams, NSDictionary *routeParams) {
     NSString *goodsId = routeParams[@"goodsId"];
     return goodsId.length > 0;
 }];

如果参数验证失败,将不会继续执行下去。 如果实现了参数映射的block,那验证的是映射后的参数

实现注册的URL相应的获取实例操作

CRRouteNode *routeNode = [CRRouteNode routeNodeWithURLScheme:@"cr" URLHost:@"goods" URLPath:@"/goodsDetail"];

[routeNode objectHandler:^id(NSDictionary *routeParams) {
     CRGoodsViewController *goodsVC = [[CRGoodsViewController alloc] init];
     goodsVC.goodsId = routeParams[@"goodsId"];
     return goodsVC;
 }];

如果实现了参数验证,如果这个block被调用,那肯定是参数验证通过了。

实现注册的URL打开页面的操作

CRRouteNode *routeNode = [CRRouteNode routeNodeWithURLScheme:@"cr" URLHost:@"goods" URLPath:@"/goodsDetail"];

[routeNode openHandler:^(NSDictionary *routeParams) {
     CRGoodsViewController *goodsVC = [[CRGoodsViewController alloc] init];
     goodsVC.goodsId = routeParams[@"goodsId"];
     UINavigationController *navigationVC = (UINavigationController *)[UIApplication sharedApplication].keyWindow.rootViewController;
     [navigationVC pushViewController:goodsVC animated:YES];
 }];

如果实现了参数验证,如果这个block被调用,那肯定是参数验证通过了。

如何调用

通过URL获取一个实例

UIViewController *vc = [CRRouter objectForURL:@"cr://goods/goodsDetail?p1=1"];

如果一些参数不方便通过URL query传递(比如block)可以用下面的方式获取实例

dispatch_block_t completionHandler = ^{
        
};
UIViewController *vc = [CRRouter objectForURL:@"cr://goods/goodsDetail?goodsId=1" withParams:@{@"block" : completionHandler}];

通过URL打开一个页面

[CRRouter openURL:@"cr://goods/goodsDetail?p1=1"];

dispatch_block_t completionHandler = ^{
        
};
[CRRouter openURL:@"cr://goods/goodsDetail?goodsId=1" withParams:@{@"block" : completionHandler}];

支持链式语法

如果你不喜欢上面的调用方式, CRRouter 也提供类似 ReactiveCocoa 那样的调用方式

[[[[[CRRouter registURLPattern:@"cr://goods/goodsDetail"] paramsMap:^NSDictionary *(NSDictionary *originParams) {
        
    NSMutableDictionary *temp = [[NSMutableDictionary alloc] init];
    temp[@"goodsId"] = originParams[@"p1"];
    [temp addEntriesFromDictionary:originParams];
    return temp;
        
}] paramsValidate:^BOOL(NSDictionary *originParams, NSDictionary *routeParams) {
        
    NSString *goodsId = routeParams[@"goodsId"];
    return goodsId.length > 0;
        
}] objectHandler:^id(NSDictionary *routeParams) {
        
    CRGoodsViewController *goodsVC = [[CRGoodsViewController alloc] init];
    goodsVC.goodsId = routeParams[@"goodsId"];
    return goodsVC;
        
}] openHandler:^(NSDictionary *routeParams) {
        
    CRGoodsViewController *goodsVC = [[CRGoodsViewController alloc] init];
    goodsVC.goodsId = routeParams[@"goodsId"];
    UINavigationController *navigationVC = (UINavigationController *)[UIApplication sharedApplication].keyWindow.rootViewController;
    [navigationVC pushViewController:goodsVC animated:YES];
        
}];