在js和native里都添加两个共同处理

WebViewJavascriptBridge/WebViewJavascriptBridgeBase.m

@@ -102,7 +102,20 @@ - (void)flushMessageQueue:(NSString *)messageQueueString{
 
             if (!handler) {
                 NSLog(@"WVJBNoHandlerException, No handler for message from JS: %@", message);
-                continue;
+                //continue;
+                if (responseCallback) {
+                    // 如果是获取所有method的方法列表
+                    if ([@"allNativeMethodsImplementationForJs" isEqualToString:message[@"handlerName"]]) {
+                        NSArray *handlerNames = self.messageHandlers.allKeys;
+                        if(handlerNames == nil){
+                            handlerNames = @[];
+                        }
+                        responseCallback(handlerNames);
+                    }else{
+                        responseCallback(@"NoMethodInNative");
+                    }
+
+                }
             }
 
             handler(message[@"data"], responseCallback);

WebViewJavascriptBridge/WebViewJavascriptBridge_JS.m

@@ -105,6 +105,18 @@ function _doDispatchMessageFromObjC() {
 				var handler = messageHandlers[message.handlerName];
 				if (!handler) {
 					console.log("WebViewJavascriptBridge: WARNING: no handler for message from ObjC:", message);
+                    if (responseCallback) {
+                        if ("AllMethodsImplementationInJs" == message.handlerName) {
+                            var keys = [];
+                            for (var handlerName in messageHandlers){
+                                keys.push(handlerName);
+                            }
+                            responseCallback(keys);
+                        }else{
+                            responseCallback("NoMethodInJs");
+                        }
+
+                    }
 				} else {
 					handler(message.data, responseCallback);
 				}