OC与JS的交互

关于oc与js的交互，本人用的是原生类

JSExport

实现。

本人不擅长文字描述，故直接上代码

1，首先创建一个继承 NSObject的类，创建代理，实现代理方法，.h文件

#import <Foundation/Foundation.h>
#import <JavaScriptCore/JavaScriptCore.h>
@protocol JSObjcDelegate1 <JSExport>
- (void)getUser:(NSString *)callString;
- (void)startNewWeb:(NSString *)callString;
- (void)getCall:(NSString *)callString;
-(void)goTojifenVC;
-(void)startMyGife;
-(void)showDialog:(NSString *)jsonString;
//多参数的时候，第二个参数外部名首字母都要大写-(void)showDialog:(NSString *)imgUrl Second:(NSString *)shareUrl Thrid:(NSString *)title Contenxt:(NSString *)contenct;
-(void)call;
@end

@interface JSObjcDelegate_VC : NSObject<JSObjcDelegate1,UMSocialUIDelegate>
@property(nonatomic,strong)UIViewController *vcs;
@property(nonatomic,strong)FenXaing_Vc *shareView;;
@property(nonatomic,assign)int a;
@end

在.m文件中实现代理方法，此中以自己的方法为例

#import "JSObjcDelegate_VC.h"
#import "QianDao_jilu_VC.h"
#import "LoginGetMsgNumResult.h"
#import "MY_FreeUse_VC.h"
#import "Mine_jifenduihuan_VC.h"
#import "Json_Model.h"
@implementation JSObjcDelegate_VC

- (void)getUser:(NSString *)callString{
    
        NSLog(@"id%@",callString);
        //注册成功，保存用户个人信息。
        NSData *jsonData = [callString dataUsingEncoding:NSUTF8StringEncoding];
        NSError *err;
        NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:&err];
        LoginGetMsgNumResult *result = [LoginGetMsgNumResult mj_objectWithKeyValues:dic];
        VGAccount *account = [[VGAccount alloc] init];
        VGUser *user = result.data;
        account.user_id = user.user_id;
        account.user_phone = user.user_phone;
        account.user_nickname = user.user_nickname;
        account.user_autograph = user.user_autograph;
        account.user_image = user.user_image;
        account.user_sex = user.user_sex;
        account.user_vip = user.user_vip;
        account.user_harvest = user.user_harvest;
        account.is_order = user.is_order;
        account.card_status = user.card_status;
        account.address_status = user.address_status;
        account.user_birthdate = user.user_birthdate;
        [VGAccountTool save:account];
        appDelegate.account = account;
}

//签到记录
- (void)startNewWeb:(NSString *)callString{
    //[_vcs stopLoading];
    NSLog(@"%@",callString);
    QianDao_jilu_VC *vc=[[QianDao_jilu_VC alloc]init];
    vc.url=callString;
    if (self.a==1) {
        [_vcs.navigationController presentViewController:vc animated:YES completion:nil];
    }else{
        [_vcs.navigationController pushViewController:vc animated:YES];
    }

}


- (void)getCall:(NSString *)callString{
    NSLog(@"id:%@", callString);
    //跳转页面
    Prodetail_VC *vc=[[Prodetail_VC alloc]init];
    vc.ids=callString;
    [CommonTool setTabBarHiden:YES];
    
    [_vcs.navigationController pushViewController:vc animated:YES];
}


-(void)goTojifenVC{
    Mine_jifenduihuan_VC *vc=[[Mine_jifenduihuan_VC alloc]init];
    [CommonTool setTabBarHiden:YES];
    [_vcs.navigationController pushViewController:vc animated:YES];

}

-(void)startMyGife{
    MY_FreeUse_VC *vc=[[MY_FreeUse_VC alloc]init];
    [CommonTool setTabBarHiden:YES];
    [_vcs.navigationController pushViewController:vc animated:YES];
}

//分享
-(void)showDialog:(NSString *)jsonString{
    NSLog(@"%@",jsonString);
    NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
    NSError *err;
    NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:&err];
    
    Json_Model *model=[Json_Model mj_objectWithKeyValues:dic];
    NSLog(@"%@",model.title);
    
    [_shareView setShareVC:_vcs content:model.contenxt image:[UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:model.imgUrl]]] url:model.url price:nil title:model.title];
    
    [_shareView show];
    
    
    /*
    
    [UMSocialData defaultData].extConfig.qqData.title =model.title;
    [UMSocialData defaultData].extConfig.qqData.url = model.url;
    [UMSocialData defaultData].extConfig.qzoneData.title =model.title;
    [UMSocialData defaultData].extConfig.qzoneData.url = model.url;
    
    [UMSocialData defaultData].extConfig.wechatTimelineData.title =model.title;
       [UMSocialData defaultData].extConfig.wechatTimelineData.url = model.url;
    [UMSocialData defaultData].extConfig.wechatSessionData.title =model.title;
    [UMSocialData defaultData].extConfig.wechatSessionData.url = model.url;

    [UMSocialSnsService presentSnsIconSheetView:_vcs appKey:nil shareText:model.contenxt shareImage:[UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:model.imgUrl]]] shareToSnsNames:@[UMShareToQQ, UMShareToQzone, UMShareToWechatSession, UMShareToWechatTimeline,UMShareToSina] delegate:self];
  
     */
}


-(void)call{
    NSLog(@"sssssssss");
}
@end

3.在需要的webView中，我们这可以这样写

#import "QianDaoViewController.h"
#import "QianDao_jilu_VC.h"
#import "LoginGetMsgNumResult.h"
#import "JSObjcDelegate_VC.h"
@interface QianDaoViewController ()
@property(nonatomic,strong) NSURLRequest* request1;
@end

@implementation QianDaoViewController
-(void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    [MobClick beginLogPageView:@"首页 - 签到"];
    
    
}

-(void)viewWillDisappear:(BOOL)animated{
    [super viewWillDisappear:animated];
    [MobClick endLogPageView:@"首页 - 签到"];
}

- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor=[UIColor whiteColor];
    
    self.webView = [[UIWebView alloc]initWithFrame:CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height-64)];
    self.webView.delegate = self;
    NSString *str1;
    if (appDelegate.account.user_id.length>0) {
        str1=appDelegate.account.user_id;
    }else{
        str1=@"";
    }
    NSString *str=[NSString stringWithFormat:@"%@&sign=%@",self.URLString,str1];
    NSLog(@"%@",str);
    NSURLRequest* request = [NSURLRequest requestWithURL:[NSURL URLWithString:str]];
    
    self.request1=request;
    [self.webView loadRequest:request];
    
    [self.view addSubview:self.webView];

}



#pragma mark - UIWebViewDelegate
- (void)webViewDidFinishLoad:(UIWebView *)webView {
    [self.view hideHUD];
    // js的弹窗是阻塞式的！
    //    [webView stringByEvaluatingJavaScriptFromString:@"clickme();"];
    
    NSString *title = [webView stringByEvaluatingJavaScriptFromString:@"document.title"];
    self.title=title;
   // NSLog(@"%@", title);
    
    JSContext *jsContext = [webView valueForKeyPath:@"documentView.webView.mainFrame.javaScriptContext"];
    JSObjcDelegate_VC *jsHandler = [JSObjcDelegate_VC new];
    jsHandler.vcs=self;
    //jsHandler.delegate=self;
    //使jsContext可以识别javascript这个类的方法
    jsContext[@"tianbai"] = jsHandler;
    //NSString *jsStr2=@"tianbai.startNewWeb('参数1')";
   // [jsContext evaluateScript:jsStr2];
    /*
    self.jsContext = [webView valueForKeyPath:@"documentView.webView.mainFrame.javaScriptContext"];
    self.jsContext[@"tianbai"] = self;
    self.jsContext.exceptionHandler = ^(JSContext *context, JSValue *exceptionValue) {
        context.exception = exceptionValue;
        NSLog(@"异常信息：%@", exceptionValue);
    };
    */
}


-(void)webViewDidStartLoad:(UIWebView *)webView
{
    [self.view showHUD];
}
@end