ios中oc的js的交互

1，js调用oc

#import <JavaScriptCore/JavaScriptCore.h>

在webview的代理方法里

JSContext *context =[webView valueForKeyPath:@"documentView.webView.mainFrame.javaScriptContext"];

// 打印异常

context.exceptionHandler =

    ^(JSContext *context, JSValue *exceptionValue)

    {

        context.exception = exceptionValue;

        NSLog(@"%@", exceptionValue);

    };

context[@"log"] =^(NSString * str){

   //点击html代码中log方法名控件时执行的oc代码

}

2，oc调用js

JSContext *context =[ [JSContext alloc]init];

NSString *path = [[NSBundle mainBundle] pathForResource:fileName ofType:@"js"];

NSString *jsScript = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:nil];

[context evaluateScript:jsScript];

//JS方法有返回参数就用JSValue

JSValue * result =[context[@"push"] callWithArguments:@[参数]] ;