first working version

Author: alinz

android/src/main/java/com/github/alinz/reactnativewebviewbridge/JavascriptBridge.java

@@ -0,0 +1,24 @@
+package com.github.alinz.reactnativewebviewbridge;
+
+import android.webkit.JavascriptInterface;
+
+import com.facebook.react.bridge.Arguments;
+import com.facebook.react.bridge.ReactContext;
+import com.facebook.react.bridge.WritableMap;
+import com.facebook.react.modules.core.DeviceEventManagerModule;
+
+class JavascriptBridge {
+  private ReactContext context;
+
+  public JavascriptBridge(ReactContext context) {
+    this.context = context;
+  }
+
+  @JavascriptInterface
+  public void send(String message) {
+    WritableMap params = Arguments.createMap();
+    params.putString("message", message);
+    context.getJSModule(DeviceEventManagerModule.RCTDeviceEventEmitter.class)
+            .emit("webViewBridgeMessage", params);
+  }
+}