JsBridge

inspired and modified from this and wechat jsBridge file, with some bugs fix and feature enhancement.

This project make a bridge between Java and JavaScript.

It provides safe and convenient way to call Java code from js and call js code from java.

Use it in Java

add com.github.lzyzsd.jsbridge.BridgeWebView to your layout, it is inherited from WebView.

Register a Java handler function so that js can call

    webView.registerHandler("Toast", new BridgeHandler() {
            @Override
            public void handler(String data, CallBackFunction function) {
                Toast.makeText(MainActivity.this,"收到H5请求数据："+data,Toast.LENGTH_SHORT).show();
            //    function.onCallBackError("");
            //    function.onCallBackSuccess("调用onError方法:"+data);
                function.onCallBackCompleted("app返回h5参数:"+data);
            }
        });

js can call this Java handler method by My.js

   function My() {
    function sendToNative(key, message, obj) {
        //call native method
        window.WebViewJavascriptBridge.callHandler(key, message, obj);
    }
    function buildBlueMessage(key, value) {
        var message = { "key": key, "value": value };
        return JSON.stringify(message);
    };
    this.Toast = function Toast(message,obj) {
        sendToNative("Toast", buildBlueMessage("1", message), obj);
    };
}
my = new My();

then you can use my.js to call Java

    my.Toast("你好", {
            success: (res) => {
                alert("success:"+res);
            },
            fail: (res) => {
            alert("fail:"+res);
            },
            complete: (res) => {
             alert("complete:"+res);
            }
        });

Register a JavaScript handler function so that Java can call

    WebViewJavascriptBridge.registerHandler("functionInJs", function(data, responseCallback) {
        document.getElementById("show").innerHTML = ("data from Java: = " + data);
        var responseData = "Javascript Says Right back aka!";
        responseCallback(responseData);
    });

License

This project is licensed under the terms of the MIT license.