AppScheme://path
//例如qq app:
mqq:// 
//支付宝:
支付宝alipay://

AppScheme://host/login

AppScheme://index/
AppScheme://goods/
AppScheme://discover/
AppScheme://user/

AppScheme://api-asycn/collections?action='insert'&value='***'&&userUoken='*******'&&source="https//***.***.com/collection.html"

#import <Foundation/Foundation.h>
@interface WLRRouteRequest : NSObject<NSCopying>
//外部调用的URL
@property (nonatomic, copy, readonly) NSURL *URL;
//URL表达式，比方说调用登录界面的表达式可以为：AppScheme://user/login/138********，那URL的匹配表达式可以是：/login/:phone([0-9]+),路径必须以/login开头，后面接0-9的电话号码数字，当然你也可以直接把电话号码的正则匹配写全
@property(nonatomic,copy)NSString * routeExpression;
//如果URL是AppScheme://user/login/138********?/callBack="",那么这个callBack就出现在这
@property (nonatomic, copy, readonly) NSDictionary *queryParameters;
//这里面会出现{@"phone":@"138********"}
@property (nonatomic, copy, readonly) NSDictionary *routeParameters;
//这里面存放的是内部调用传递的原生参数
@property (nonatomic, copy, readonly) NSDictionary *primitiveParams;
//自动检测窃取回调的callBack 的Url
@property (nonatomic, strong) NSURL *callbackURL;
//目标的viewcontrolller或者是组件可以通过这个
@property(nonatomic,copy)void(^targetCallBack)(NSError *error,id responseObject);
//用以表明该request是否被消费
@property(nonatomic)BOOL isConsumed;
//简便方法，用以下标法取参数
- (id)objectForKeyedSubscript:(NSString *)key;
//初始化方法
-(instancetype)initWithURL:(NSURL *)URL routeExpression:(NSString *)routeExpression routeParameters:(NSDictionary *)routeParameters primitiveParameters:(NSDictionary *)primitiveParameters targetCallBack:(void(^)(NSError * error,id responseObject))targetCallBack;
-(instancetype)initWithURL:(NSURL *)URL;
//默认完成目标的回调
-(void)defaultFinishTargetCallBack;
@end

#import <Foundation/Foundation.h>
@class WLRRouteRequest;
@interface WLRRouteHandler : NSObject
//即将handle某一个请求
- (BOOL)shouldHandleWithRequest:(WLRRouteRequest *)request;
//根据request取出调用的目标视图控制器
-(UIViewController *)targetViewControllerWithRequest:(WLRRouteRequest *)request;
//根据request取出来源的视图控制器
-(UIViewController *)sourceViewControllerForTransitionWithRequest:(WLRRouteRequest *)request;
//开始进行转场
-(BOOL)transitionWithRequest:(WLRRouteRequest *)request error:(NSError *__autoreleasing *)error;
@end

-(BOOL)transitionWithRequest:(WLRRouteRequest *)request error:(NSError *__autoreleasing *)error{
    UIViewController * sourceViewController = [self sourceViewControllerForTransitionWithRequest:request];
    UIViewController * targetViewController = [self targetViewControllerWithRequest:request];
    if ((![sourceViewController isKindOfClass:[UIViewController class]])||(![targetViewController isKindOfClass:[UIViewController class]])) {
        *error = [NSError WLRTransitionError];
        return NO;
    }
    if (targetViewController != nil) {
        targetViewController.wlr_request = request;
    }
    if ([self preferModalPresentationWithRequest:request]||![sourceViewController isKindOfClass:[UINavigationController class]]) {
        [sourceViewController presentViewController:targetViewController animated:YES completion:nil];
    }
    else if ([sourceViewController isKindOfClass:[UINavigationController class]]){
        UINavigationController * nav = (UINavigationController *)sourceViewController;
        [nav pushViewController:targetViewController animated:YES];
    }
    return YES;
}
- (BOOL)preferModalPresentationWithRequest:(WLRRouteRequest *)request;{
    return NO;
}

#import <Foundation/Foundation.h>
@class WLRMatchResult;
@interface WLRRegularExpression : NSRegularExpression
//传入一个URL返回一个匹配结果
-(WLRMatchResult *)matchResultForString:(NSString *)string;
//根据一个URL的表达式创建一个WLRRegularExpression实例
+(WLRRegularExpression *)expressionWithPattern:(NSString *)pattern;
@end

-(instancetype)initWithPattern:(NSString *)pattern options:(NSRegularExpressionOptions)options error:(NSError * _Nullable __autoreleasing *)error{
//初始化方法中将URL匹配的表达式pattern转换为真正的正则表达式
    NSString *transformedPattern = [WLRRegularExpression transfromFromPattern:pattern];
//用转化后的结果初始化父类
    if (self = [super initWithPattern:transformedPattern options:options error:error]) {
//同时将需要提取的子串的值的Key保存到数组中
        self.routerParamNamesArr = [[self class] routeParamNamesFromPattern:pattern];
    }
    return self;
}
//转换为正则表达式
+(NSString*)transfromFromPattern:(NSString *)pattern{
//将pattern拷贝
    NSString * transfromedPattern = [NSString stringWithString:pattern];
//利用:[a-zA-Z0-9-_][^/]+这个正则表达式，将URL匹配的表达式的子串key提取出来，也就是像 /login/:phone([0-9]+)/:name[a-zA-Z-_]这样的pattern，需要将:phone([0-9]+)和:name[a-zA-Z-_]提取出来
    NSArray * paramPatternStrings = [self paramPatternStringsFromPattern:pattern];
    NSError * err;
//再根据:[a-zA-Z0-9-_]+这个正则表达式，将带有提取子串的key全部去除，比如将:phone([0-9]+)去除:phone改成([0-9]+)
    NSRegularExpression * paramNamePatternEx = [NSRegularExpression regularExpressionWithPattern:WLRRouteParamNamePattern options:NSRegularExpressionCaseInsensitive error:&err];
    for (NSString * paramPatternString in paramPatternStrings) {
        NSString * replaceParamPatternString = [paramPatternString copy];
        NSTextCheckingResult * foundParamNamePatternResult =[paramNamePatternEx matchesInString:paramPatternString options:NSMatchingReportProgress range:NSMakeRange(0, paramPatternString.length)].firstObject;
        if (foundParamNamePatternResult) {
            NSString *paramNamePatternString =[paramPatternString substringWithRange: foundParamNamePatternResult.range];
            replaceParamPatternString = [replaceParamPatternString stringByReplacingOccurrencesOfString:paramNamePatternString withString:@""];
        }
        if (replaceParamPatternString.length == 0) {
            replaceParamPatternString = WLPRouteParamMatchPattern;
        }
        transfromedPattern = [transfromedPattern stringByReplacingOccurrencesOfString:paramPatternString withString:replaceParamPatternString];
    }
    if (transfromedPattern.length && !([transfromedPattern characterAtIndex:0] == '/')) {
        transfromedPattern = [@"^" stringByAppendingString:transfromedPattern];
    }
//最后结尾要用$符号
    transfromedPattern = [transfromedPattern stringByAppendingString:@"$"];
//最后会将/login/:phone([0-9]+)转换为login/([0-9]+)$
    return transfromedPattern;
}

-(WLRMatchResult *)matchResultForString:(NSString *)string{
//首先通过自身方法将URL进行匹配得出NSTextCheckingResult结果的数组
    NSArray * array = [self matchesInString:string options:0 range:NSMakeRange(0, string.length)];
    WLRMatchResult * result = [[WLRMatchResult alloc]init];
    if (array.count == 0) {
        return result;
    }
    result.match = YES;
    NSMutableDictionary * paramDict = [NSMutableDictionary dictionary];
//遍历NSTextCheckingResult结果
    for (NSTextCheckingResult * paramResult in array) {
//再便利根据初始化的时候提取的子串的Key的数组
        for (int i = 1; i<paramResult.numberOfRanges&&i <= self.routerParamNamesArr.count;i++ ) {
            NSString * paramName = self.routerParamNamesArr[i-1];
//将值取出，然后将key和value放入到paramDict
            NSString * paramValue = [string substringWithRange:[paramResult rangeAtIndex:i]];
            [paramDict setObject:paramValue forKey:paramName];
        }
    }
//最后赋值给WLRMatchResult对象
    result.paramProperties = paramDict;
    return result;
}

#import <Foundation/Foundation.h>
@class WLRRouteRequest;
@interface WLRRouteMatcher : NSObject
//传入URL匹配的表达式，获取一个matcher实例
+(instancetype)matcherWithRouteExpression:(NSString *)expression;
//传入URL，如果能匹配上，则生成WLRRouteRequest对象，同时将各种参数解析好交由WLRRouteRequest携带
-(WLRRouteRequest *)createRequestWithURL:(NSURL *)URL primitiveParameters:(NSDictionary *)primitiveParameters targetCallBack:(void(^)(NSError *, id responseObject))targetCallBack;
@end

//scheme
@property(nonatomic,copy) NSString * scheme;
//WLRRegularExpression的实例 
@property(nonatomic,strong)WLRRegularExpression * regexMatcher;
//匹配的表达式
@property(nonatomic,copy)NSString * routeExpressionPattern;

-(instancetype)initWithRouteExpression:(NSString *)routeExpression{
    if (![routeExpression length]) {
        return nil;
    }
    if (self = [super init]) {
//将scheme与path部分分别取出
        NSArray * parts = [routeExpression componentsSeparatedByString:@"://"];
        _scheme = parts.count>1?[parts firstObject]:nil;
        _routeExpressionPattern =[parts lastObject];
//将path部分当做URL匹配表达式生成WLRRegularExpression实例
        _regexMatcher = [WLRRegularExpression expressionWithPattern:_routeExpressionPattern];
    }
    return self;
}

-(WLRRouteRequest *)createRequestWithURL:(NSURL *)URL primitiveParameters:(NSDictionary *)primitiveParameters targetCallBack:(void (^)(NSError *, id))targetCallBack{
    NSString * urlString = [NSString stringWithFormat:@"%@%@",URL.host,URL.path];
    if (self.scheme.length && ![self.scheme isEqualToString:URL.scheme]) {
        return nil;
    }
//调用self.regexMatcher将URL传入，获取WLRMatchResult结果，看是否匹配
    WLRMatchResult * result = [self.regexMatcher matchResultForString:urlString];
    if (!result.isMatch) {
        return nil;
    }
//如果匹配，则将result.paramProperties路径参数传入，初始化一个WLRRouteRequest实例
    WLRRouteRequest * request = [[WLRRouteRequest alloc]initWithURL:URL routeExpression:self.routeExpressionPattern routeParameters:result.paramProperties primitiveParameters:primitiveParameters targetCallBack:targetCallBack];
    return request;
}

@class WLRRouteRequest;
@class WLRRouteHandler;
@interface WLRRouter : NSObject
//注册block回调的URL匹配表达式，可用作内部调用
-(void)registerBlock:(WLRRouteRequest *(^)(WLRRouteRequest * request))routeHandlerBlock forRoute:(NSString *)route;
//注册一个WLRRouteHandler对应的URL匹配表达式route
-(void)registerHandler:(WLRRouteHandler *)handler forRoute:(NSString *)route;
//判断url是否可以被handle
-(BOOL)canHandleWithURL:(NSURL *)url;
-(void)setObject:(id)obj forKeyedSubscript:(NSString *)key;
-(id)objectForKeyedSubscript:(NSString *)key;
//调用handleURL方法，传入URL、原生参数和targetCallBack和完成匹配的completionBlock
-(BOOL)handleURL:(NSURL *)URL primitiveParameters:(NSDictionary *)primitiveParameters targetCallBack:(void(^)(NSError *, id responseObject))targetCallBack withCompletionBlock:(void(^)(BOOL handled, NSError *error))completionBlock;

//每一个URL的匹配表达式route对应一个matcher实例，放在字典中
@property(nonatomic,strong)NSMutableDictionary * routeMatchers;
//每一个URL匹配表达式route对应一个WLRRouteHandler实例
@property(nonatomic,strong)NSMutableDictionary * routeHandles;
//每一个URL匹配表达式route对应一个回调的block
@property(nonatomic,strong)NSMutableDictionary * routeblocks;

-(void)registerBlock:(WLRRouteRequest *(^)(WLRRouteRequest *))routeHandlerBlock forRoute:(NSString *)route{
    if (routeHandlerBlock && [route length]) {
//首先添加一个WLRRouteMatcher实例
        [self.routeMatchers setObject:[WLRRouteMatcher matcherWithRouteExpression:route] forKey:route];
//删除route对应的handler对象
        [self.routeHandles removeObjectForKey:route];
//将routeHandlerBlock和route存入对应关系的字典中
        self.routeblocks[route] = routeHandlerBlock;
    }
}
-(void)registerHandler:(WLRRouteHandler *)handler forRoute:(NSString *)route{
    if (handler && [route length]) {
//首先生成route对应的WLRRouteMatcher实例
        [self.routeMatchers setObject:[WLRRouteMatcher matcherWithRouteExpression:route] forKey:route];
//删除route对应的block回调
        [self.routeblocks removeObjectForKey:route];
//设置route对应的handler
        self.routeHandles[route] = handler;
    }
}

-(BOOL)handleURL:(NSURL *)URL primitiveParameters:(NSDictionary *)primitiveParameters targetCallBack:(void(^)(NSError *error, id responseObject))targetCallBack withCompletionBlock:(void(^)(BOOL handled, NSError *error))completionBlock{
    if (!URL) {
        return NO;
    }
    NSError * error;
    WLRRouteRequest * request;
    __block BOOL isHandled = NO;
//遍历routeMatchers中的WLRRouteMatcher对象，将URL传入对象，看是否能得到WLRRouteRequest对象
    for (NSString * route in self.routeMatchers.allKeys) {
        WLRRouteMatcher * matcher = [self.routeMatchers objectForKey:route];
        WLRRouteRequest * request = [matcher createRequestWithURL:URL primitiveParameters:primitiveParameters targetCallBack:targetCallBack];
        if (request) {
//如果得到WLRRouteRequest对象，说明匹配成功，则进行handler的生命周期函数调用或是这block回调
            isHandled = [self handleRouteExpression:route withRequest:request error:&error];
            break;
        }
    }
    if (!request) {
        error = [NSError WLRNotFoundError];
    }
//在调用完毕block或者是handler的生命周期方法以后，回调完成的completionHandler
    [self completeRouteWithSuccess:isHandled error:error completionHandler:completionBlock];
    return isHandled;
}
//根据request进行handler的生命周期函数调用或者是block回调
-(BOOL)handleRouteExpression:(NSString *)routeExpression withRequest:(WLRRouteRequest *)request error:(NSError *__autoreleasing *)error {
    id handler = self[routeExpression];
//self.routeHandles和self.routeblocks拿到route对应的回调block或者是handler实例
    if ([handler isKindOfClass:NSClassFromString(@"NSBlock")]) {
        WLRRouteRequest *(^blcok)(WLRRouteRequest *) = handler;
//调用回调的block
        WLRRouteRequest * backRequest = blcok(request);
//判断block里面是否消费了此request，如果没有而目标设置了目标回调targetCallBack，那么在此进行默认回调
        if (backRequest.isConsumed==NO) {
            if (backRequest.targetCallBack) {
                dispatch_async(dispatch_get_main_queue(), ^{
                    backRequest.targetCallBack(nil,nil);
                });
            }
        }
        return YES;
    }
    else if ([handler isKindOfClass:[WLRRouteHandler class]]){
//拿到url对应的handler对象后，先调用handler的shouldHandleWithRequest方法，如果返回YES，则调用进行转场的transitionWithRequest方法
        WLRRouteHandler * rHandler = (WLRRouteHandler *)handler;
        if (![rHandler shouldHandleWithRequest:request]) {
            return NO;
        }
       return [rHandler transitionWithRequest:request error:error];
    }
    return YES;
}

-(UIViewController *)targetViewControllerWithRequest:(WLRRouteRequest *)request{
}
-(UIViewController *)sourceViewControllerForTransitionWithRequest:(WLRRouteRequest *)request{
}
-(BOOL)transitionWithRequest:(WLRRouteRequest *)request error:(NSError *__autoreleasing *)error{
}

- Middleware1
   - Middleware2
       - handler
    -Middleware2
- Middleware1

angular.module('app',[])
            .config('$routeProvider',function  ($routeProvider) {
                $routeProvider
                    .when('/',{
                        templateUrl:'view/home.html',
                        controller:'homeCtrl'
                        }
                        )
                    .when('/',{
                        templateUrl:'view/home.html',
                        controller:'homeCtrl'
                        }
                        )
                    .when('/',{
                        templateUrl:'view/home.html',
                        controller:'homeCtrl'
                        }
                        )
                    .ontherwise({
                        redirective:'/'
                    })
            })
    </script>

#import <Foundation/Foundation.h>
 #import <UIKit/UIKit.h>
@interface WXRouter : NSObject
+(id)sharedInstance;
-(UIViewController *)getViewController:(NSString *)stringVCName;
-(UIViewController *)getViewController:(NSString *)stringVCName withParam:(NSDictionary *)paramdic;
@end


#import "WXRouter.h"
#import "webView.h"
#import "RouterError.h"
#import "PlistReadUtil.h"
#define SuppressPerformSelectorLeakWarning(Stuff) \
do {
_Pragma("clang diagnostic push") \
_Pragma("clang diagnostic ignored \"-Warc-performSelector-leaks\"") \
Stuff; \
_Pragma("clang diagnostic pop") \
}
while (0)
@implementation WXRouter
+(id)sharedInstance {
    static dispatch_once_t onceToken;
    static WXRouter * router;
    dispatch_once(&onceToken,^{
        router = [[WXRouter alloc] init];
});
return router;
}
-(UIViewController *)controller:(UIViewController *)controller withParam:(NSDictionary *)paramdic andVcname:(NSString *)vcName {
SEL selector = NSSelectorFromString(@"iniViewControllerParam:");
    if(![controller respondsToSelector: selector]){  //如果没定义初始化参数方法，直接返回，没必要在往下做设置参数的方法
        NSLog(@"目标类:%@未定义:%@方法",controller,@"iniViewControllerParam:");
return controller;
}
if(paramdic == nil) {
//如果参数为空 URLKEY 页面唯一路径标识别
        paramdic = [[NSMutableDictionary alloc] init];
        [paramdic setValue: vcName forKey:@"URLKEY"];
SuppressPerformSelectorLeakWarning([controller performSelector: selector withObject:paramdic]);
}
else {
[paramdic setValue: vcName forKey:@"URLKEY"];
}
SuppressPerformSelectorLeakWarning( [controller performSelector:selector withObject:paramdic]);
    return controller;
}
-(UIViewController *)getViewController:(NSString *)stringVCName {
NSString *viewControllerName = [PlistReadUtil plistValueForKey: stringVCName];
Class class = NSClassFromString(viewControllerName);
    UIViewController *controller = [[class alloc] init];
    if(controller == nil){  //此处可以跳转到一个错误提示页面
        NSLog(@"未定义此类:%@",viewControllerName);
        return nil;
}
return controller;
}
-(UIViewController *)getViewController:(NSString *)stringVCName withParam:(NSDictionary *)paramdic {
UIViewController *controller = [self getViewController: stringVCName];
if(controller != nil){
        controller = [self controller: controller withParam:paramdic andVcname:stringVCName];
}
else {
//异常处理  可以跳转指定的错误页面
        controller = [[RouterError sharedInstance] getErrorController];
}
return controller;
}
@end

#import <Foundation/Foundation.h>
@interface PlistReadUtil : NSObject
@property(nonatomic,strong) NSMutableDictionary *plistdata;
+(id)sharedInstanceWithFileName:(NSString *)plistfileName;
+(NSString *)plistValueForKey:(NSString *)key;
@end


#import "PlistReadUtil.h"
@implementation PlistReadUtil
+(id)sharedInstanceWithFileName:(NSString *)plistfileName {
    static dispatch_once_t onceToken;
    static PlistReadUtil * plistUtil;
    dispatch_once(&onceToken,^{
        plistUtil = [[PlistReadUtil alloc] init];
        NSString *plistPath = [[NSBundle mainBundle] pathForResource: plistfileName ofType:@"plist"];
    plistUtil.plistdata = [[NSMutableDictionary alloc] initWithContentsOfFile: plistPath];
});
return plistUtil;
}
+(NSString *)plistValueForKey:(NSString *)key {
PlistReadUtil *plist =  [PlistReadUtil sharedInstanceWithFileName: @"urlMap"];
return [plist.plistdata objectForKey: key];
}
@end

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
@interface RouterError : NSObject
+(id)sharedInstance;
-(UIViewController *)getErrorController;
@end


#import "RouterError.h"
#import "WXRouter.h"
@implementation RouterError
+(id)sharedInstance {
    static dispatch_once_t onceToken;
    static RouterError * routerError;
    dispatch_once(&onceToken,^{
        routerError = [[RouterError alloc] init];
});
return routerError;
}
#pragma mark  自定义错误页面 此页面一定确保能够找到，否则会进入死循环
-(UIViewController *)getErrorController {
NSDictionary *diction = [[NSMutableDictionary alloc] init];
    [diction setValue: @"https://themeforest.net/item/octopus-error-template/2562783" forKey:@"url"];
UIViewController *errorController = [[WXRouter sharedInstance] getViewController: @"MSG003" withParam:diction];
return errorController;
}
@end

#import "ViewController.h"
#import "view2.h"
#import "WXRouter.h"
#import "PlistReadUtil.h"
@interface ViewController ()
@end
@implementation ViewController
-(void)viewDidLoad {
    [super viewDidLoad];
    UILabel *lable = [[UILabel alloc] initWithFrame: CGRectMake(0, 0, 100, 50)];
    lable.textColor = [UIColor blueColor];
    lable.text =@"hello word";
    [self.view addSubview: lable];
    UIButton *button = [[UIButton alloc] initWithFrame: CGRectMake(0, 50, 200, 50)];
    [button setTitle: @"访问view1" forState:UIControlStateNormal];
    [button setTitleColor: [UIColor blackColor] forState:UIControlStateNormal];
    button.tag = 1;
    [button addTarget: self action:@selector(back:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview: button];
    UIButton *button2 = [[UIButton alloc] initWithFrame: CGRectMake(0, 110, 200, 50)];
    [button2 setTitle: @"访问view3" forState:UIControlStateNormal];
    [button2 setTitleColor: [UIColor blackColor] forState:UIControlStateNormal];
    button2.tag = 2;
    [button2 addTarget: self action:@selector(back:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview: button2];
    UIButton *butto3 = [[UIButton alloc] initWithFrame: CGRectMake(0, 170, 200, 50)];
    [butto3 setTitle: @"访问webview" forState:UIControlStateNormal];
    [butto3 setTitleColor: [UIColor blackColor] forState:UIControlStateNormal];
    butto3.tag = 3;
    [butto3 addTarget: self action:@selector(back:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview: butto3];
    UIButton *button4 = [[UIButton alloc] initWithFrame: CGRectMake(0, 230, 200, 50)];
    [button4 setTitle: @"访问wei定义的页面" forState:UIControlStateNormal];
    [button4 setTitleColor: [UIColor blackColor] forState:UIControlStateNormal];
    button4.tag = 4;
    [button4 addTarget: self action:@selector(back:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview: button4];
}
-(void)back:(UIButton *)btn {
    switch (btn.tag) {
        case 1: {
            NSMutableDictionary *dic = [[NSMutableDictionary alloc] init];
    [dic setValue: @"nihao shijie" forKey:@"title"];
    UIViewController *controller = [[WXRouter sharedInstance] getViewController: @"MSG001" withParam:dic];
    [self presentViewController: controller animated:YES completion:nil];
}
break;
        case 2: {
    NSMutableDictionary *dic = [[NSMutableDictionary alloc] init];
            [dic setValue: @"nihao shijie" forKey:@"title"];
    UIViewController *controller = [[WXRouter sharedInstance] getViewController: @"MSG002"  withParam:dic];
    [self presentViewController: controller animated:YES completion:nil];
}
break;
        case 3: {
    NSMutableDictionary *dic = [[NSMutableDictionary alloc] init];
            [dic setValue: @"https://www.baidu.com" forKey:@"url"];
    UIViewController *controller = [[WXRouter sharedInstance] getViewController: @"MSG003" withParam:dic];
    [self presentViewController: controller animated:YES completion:nil];
}
break;
        case 4: {
    UIViewController *controller = [[WXRouter sharedInstance] getViewController: @"MSG005"  withParam:nil];
    [self presentViewController: controller animated:YES completion:nil];
}
default:
            break;
}
}
-(void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}
@end

#import "view3.h"
@interface view3 ()
@end
@implementation view3
- (void)viewDidLoad {
    [super viewDidLoad];
    UILabel *lable = [[UILabel alloc] initWithFrame: CGRectMake(0, 0, 100, 50)];
    lable.textColor = [UIColor blueColor];
    lable.text =@"我是view3";
    [self.view addSubview: lable];
    UIButton *button = [[UIButton alloc] initWithFrame: CGRectMake(200, 200, 200, 200)];
    [button setTitle: @"back" forState:UIControlStateNormal];
    [button setTitleColor: [UIColor blackColor] forState:UIControlStateNormal];
    [button addTarget: self action:@selector(back) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview: button];
}
-(void) back {
    [self dismissViewControllerAnimated: YES completion:nil];
}
-(void)iniViewControllerParam:(NSDictionary *)dic {
    self.title = [dic objectForKey: @"title"];
}

package com.example.mlxu.wxrouter;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import com.wx.router.Router;
public class MainActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
       Log.v("activity","activity:" + RouterUtil.getActivity(this, "MSG001"));
       Log.v("activity", "activity:" + RouterUtil.getActivity(this, "MSG002"));
       Log.v("activity", "activity:" + RouterUtil.getActivity(this, "MSG003"));
    }
    public void buttonClick(View v) {
        int id = v.getId();
        switch (id) {
            case R.id.btn1: {
                startActivity(Router.initIntentWithActivityKey(this, "MSG001"));
            }
            break;
            case R.id.btn2: {
                startActivity(Router.initIntentWithActivityKey(this, "MSG002"));
            }
            break;
            case R.id.btn3: {
                Intent intent = Router.initIntentWithActivityKey(this, "MSG003");
                intent.putExtra("url", "http://www.baidu.com");
                startActivity(intent);
            }
            break;
            case R.id.btn4: {
                Intent intent = Router.initIntentWithActivityKey(this, "MSG005");
                intent.putExtra("url", "http://www.baidu.com");
                startActivity(intent);
            }
            break;
        }
    }
}

package com.wx.router;
import android.content.Context;
import android.content.Intent;
public class Router {
    public static Class getActivityClassForName(Context context, String name) {
        Class clazz;
        try {
            clazz = Class.forName(name);
        } catch (ClassNotFoundException e) {
            throw new RuntimeException(e);
        }
        return clazz;
    }
    public static Intent initIntentWithActivityKey(Context context, String key) {
        Class clazz;
        String activityName = RouterUtil.getActivity(context, key);
        try {
            if ((activityName == "") || (activityName == null)) {
                clazz = RouterError.errorClass(context);
            } else {
                clazz = Class.forName(activityName);
            }
        } catch (ClassNotFoundException e) {
            //            throw new RuntimeException(e);
            clazz = RouterError.errorClass(context);
        }
        Intent intent = new Intent(context, clazz);
        intent.putExtra("URLKEY", key); //??key??????????
        return intent;
    }
}

package com.wx.router;
import android.content.Context;
import android.content.res.AssetManager;
import android.util.Log;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
public class RouterUtil {
    private final static String fileName = "urlmap.json";
    private static Map<String,String> maplist;
    public static  void initMaplistOfFile(Context context, String fileName)
    {
        if(maplist == null){
            synchronized (RouterUtil.class){
                if(maplist == null){
                    maplist = new HashMap<>();
                    StringBuffer sb = new StringBuffer();
                    AssetManager am = context.getAssets();
                    try {
                        BufferedReader bf = new BufferedReader(new InputStreamReader(am.open(fileName)));
                        String next = "";
                        while (null != (next = bf.readLine())){
                            sb.append(next);
                        }
                    }catch (IOException e){
                        e.printStackTrace();
                        sb.delete(0,sb.length());
                    }
                    try {
                        JSONArray jsonArray = new JSONArray(sb.toString().trim());
                        for(int i = 0; i < jsonArray.length(); i++){
                            JSONObject jsonObject = (JSONObject)jsonArray.get(i);
                            Iterator<String> keyIter= jsonObject.keys();
                            Map<String,String> map = new HashMap<String,String>();
                            String key;
                            Object value;
                            while (keyIter.hasNext()) {
                                key = keyIter.next();
                                value = jsonObject.get(key);
                                maplist.put(key, (String)value);
                            }
                        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                }
            }
        }
    }
    public static String getActivity(Context context,String urlkey){
        initMaplistOfFile(context, fileName);
        String value = "";
        try {
            value = maplist.get(urlkey);
        }catch (Exception e){
            value = "";
            Log.w("UrlError",urlkey+"值不存在");
        }
        return value;
    }
}

package com.wx.router;
import android.content.Context;
public class RouterError {
  public static Class errorClass(Context context){
      return Router.getActivityClassForName(context,RouterUtil.getActivity(context,"MSG003"));
  }
}

[  {"MSG001":"com.example.mlxu.wxrouter.View1"},  {"MSG002":"com.example.mlxu.wxrouter.View2"},  {"MSG003":"com.example.mlxu.wxrouter.webview"},  {"MSG004":"com.example.mlxu.wxrouter.webview1"}]