[Hybrid App]--Android混合开发,Android、Js的交互

AndroidJs通信

*:first-child {
margin-top: 0 !important;
}

body>*:last-child {
margin-bottom: 0 !important;
}

/* BLOCKS
=============================================================================*/

p, blockquote, ul, ol, dl, table, pre {
margin: 15px 0;
}

/* HEADERS
=============================================================================*/

h1, h2, h3, h4, h5, h6 {
margin: 20px 0 10px;
padding: 0;
font-weight: bold;
-webkit-font-smoothing: antialiased;
}

h1 tt, h1 code, h2 tt, h2 code, h3 tt, h3 code, h4 tt, h4 code, h5 tt, h5 code, h6 tt, h6 code {
font-size: inherit;
}

h1 {
font-size: 28px;
color: #000;
}

h2 {
font-size: 24px;
border-bottom: 1px solid #ccc;
color: #000;
}

h3 {
font-size: 18px;
}

h4 {
font-size: 16px;
}

h5 {
font-size: 14px;
}

h6 {
color: #777;
font-size: 14px;
}

body>h2:first-child, body>h1:first-child, body>h1:first-child+h2, body>h3:first-child, body>h4:first-child, body>h5:first-child, body>h6:first-child {
margin-top: 0;
padding-top: 0;
}

a:first-child h1, a:first-child h2, a:first-child h3, a:first-child h4, a:first-child h5, a:first-child h6 {
margin-top: 0;
padding-top: 0;
}

h1+p, h2+p, h3+p, h4+p, h5+p, h6+p {
margin-top: 10px;
}

/* LINKS
=============================================================================*/

a {
color: #4183C4;
text-decoration: none;
}

a:hover {
text-decoration: underline;
}

/* LISTS
=============================================================================*/

ul, ol {
padding-left: 30px;
}

ul li > :first-child,
ol li > :first-child,
ul li ul:first-of-type,
ol li ol:first-of-type,
ul li ol:first-of-type,
ol li ul:first-of-type {
margin-top: 0px;
}

ul ul, ul ol, ol ol, ol ul {
margin-bottom: 0;
}

dl {
padding: 0;
}

dl dt {
font-size: 14px;
font-weight: bold;
font-style: italic;
padding: 0;
margin: 15px 0 5px;
}

dl dt:first-child {
padding: 0;
}

dl dt>:first-child {
margin-top: 0px;
}

dl dt>:last-child {
margin-bottom: 0px;
}

dl dd {
margin: 0 0 15px;
padding: 0 15px;
}

dl dd>:first-child {
margin-top: 0px;
}

dl dd>:last-child {
margin-bottom: 0px;
}

/* CODE
=============================================================================*/

pre, code, tt {
font-size: 12px;
font-family: Consolas, "Liberation Mono", Courier, monospace;
}

code, tt {
margin: 0 0px;
padding: 0px 0px;
white-space: nowrap;
border: 1px solid #eaeaea;
background-color: #f8f8f8;
border-radius: 3px;
}

pre>code {
margin: 0;
padding: 0;
white-space: pre;
border: none;
background: transparent;
}

pre {
background-color: #f8f8f8;
border: 1px solid #ccc;
font-size: 13px;
line-height: 19px;
overflow: auto;
padding: 6px 10px;
border-radius: 3px;
}

pre code, pre tt {
background-color: transparent;
border: none;
}

kbd {
-moz-border-bottom-colors: none;
-moz-border-left-colors: none;
-moz-border-right-colors: none;
-moz-border-top-colors: none;
background-color: #DDDDDD;
background-image: linear-gradient(#F1F1F1, #DDDDDD);
background-repeat: repeat-x;
border-color: #DDDDDD #CCCCCC #CCCCCC #DDDDDD;
border-image: none;
border-radius: 2px 2px 2px 2px;
border-style: solid;
border-width: 1px;
font-family: "Helvetica Neue",Helvetica,Arial,sans-serif;
line-height: 10px;
padding: 1px 4px;
}

/* QUOTES
=============================================================================*/

blockquote {
border-left: 4px solid #DDD;
padding: 0 15px;
color: #777;
}

blockquote>:first-child {
margin-top: 0px;
}

blockquote>:last-child {
margin-bottom: 0px;
}

/* HORIZONTAL RULES
=============================================================================*/

hr {
clear: both;
margin: 15px 0;
height: 0px;
overflow: hidden;
border: none;
background: transparent;
border-bottom: 4px solid #ddd;
padding: 0;
}

/* TABLES
=============================================================================*/

table th {
font-weight: bold;
}

table th, table td {
border: 1px solid #ccc;
padding: 6px 13px;
}

table tr {
border-top: 1px solid #ccc;
background-color: #fff;
}

table tr:nth-child(2n) {
background-color: #f8f8f8;
}

/* IMAGES
=============================================================================*/

img {
max-width: 100%
}
-->

Hybird App

Hybrid 开发：JsBridge - Web 和客户端的桥

Hybrid开发中，web页面往往会跟native进行交互，而JSBridge就是web页面和native进行通信的桥梁，通过JSBridge可以实现web调用native的方法，native可以通过webview.loadUrl之类的方法，将javascript:xxx代码放在页面执行，这有点类似在浏览器地址栏直接输入：javascript:xxx

web和native进行通信，JsBridge的多种形式

①JavaScriptInterface

// Android java代码
mWebView.addJavascriptInterface(new Class(), 'android');  

public class Class(){
@JavascriptInterface
public void method(){

}
} 

// js 代码
window.android.method();

②改写浏览器原有对象

通过修改原来浏览器的window某些方法，然后拦截固定规则的参数，然后分发给Java对应的方法去处理。这里常用的是以下四个方法：

• alert，可以被webview的onJsAlert监听
• confirm，可以被webview的onJsConfirm监听
• console.log，可以被webview的onConsoleMessage监听
• prompt，可以被webview的onJsPrompt监听

AgentWeb开源框架的基本使用

Android

if(mAgentWeb!=null){
        //注入对象
        mAgentWeb.getJsInterfaceHolder().addJavaObject("android",new AndroidInterface(mAgentWeb,this.getActivity()));
    }

mAgentWeb.getJsAccessEntrace().quickCallJs("callByAndroidParam","Hello ! Agentweb");

mAgentWeb.getJsAccessEntrace().quickCallJs("callByAndroidMoreParams", new ValueCallback<String>() {
                    @Override
                    public void onReceiveValue(String value) {
                        Log.i("Info","value:"+value);
                    }
                },getJson(),"say:", " Hello! Agentweb");

private String getJson(){

    String result="";
    try {

        JSONObject mJSONObject=new JSONObject();
        mJSONObject.put("id",1);
        mJSONObject.put("name","Agentweb");
        mJSONObject.put("age",18);
        result= mJSONObject.toString();
    }catch (Exception e){

    }

    return result;
}

JsBridge

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;

import com.github.lzyzsd.jsbridge.BridgeHandler;
import com.github.lzyzsd.jsbridge.BridgeWebView;
import com.github.lzyzsd.jsbridge.BridgeWebViewClient;
import com.github.lzyzsd.jsbridge.CallBackFunction;
import com.google.gson.Gson;
import com.just.agentweb.AgentWeb;

/**
* Created by cenxiaozhong on 2017/7/1.
* source code  https://github.com/Justson/AgentWeb
*/

public class JsbridgeWebFragment extends    AgentWebFragment {

    public static JsbridgeWebFragment getInstance(Bundle bundle){

    JsbridgeWebFragment mJsbridgeWebFragment =new JsbridgeWebFragment();
    if(mJsbridgeWebFragment !=null){
        mJsbridgeWebFragment.setArguments(bundle);
    }

    return mJsbridgeWebFragment;
}

private BridgeWebView mBridgeWebView;

@Override
public String getUrl() {
    return super.getUrl();
}

@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {

    mBridgeWebView=new BridgeWebView(getActivity());
    mAgentWeb = AgentWeb.with(this)//
            .setAgentWebParent((ViewGroup) view, new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT))//
            .useDefaultIndicator(-1, 2)//
            .setAgentWebWebSettings(getSettings())//
            .setWebViewClient(new BridgeWebViewClient(mBridgeWebView))
            .setWebChromeClient(mWebChromeClient)
            .setWebView(mBridgeWebView)
            .setSecurityType(AgentWeb.SecurityType.STRICT_CHECK)
//          .setDownloadListener    (mDownloadListener) 4.0.0 删除该API
            .createAgentWeb()//
            .ready()//
            .go(getUrl());

    initView(view);

    mBridgeWebView.registerHandler("submitFromWeb", new BridgeHandler() {

        @Override
        public void handler(String data, CallBackFunction function) {
            function.onCallBack("submitFromWeb exe, response data 中文 from Java");
        }

    });

    User user = new User();
    Location location = new Location();
    location.address = "SDU";
    user.location = location;
    user.name = "Agentweb --> Jsbridge";

    mBridgeWebView.callHandler("functionInJs", new Gson().toJson(user), new CallBackFunction() {
        @Override
        public void onCallBack(String data) {
            Log.i(TAG,"data:"+data);
        }
    });

    mBridgeWebView.send("hello");

}

static class Location {
    String address;
}

static class User {
    String name;
    Location location;
    String testStr;
}

}

推荐阅读

• Hybrid 开发：JsBridge - Web 和客户端的桥
• AgentWeb-Android-H5混合开发
• AgentWeb WebView 与 Android交互 JS调用 Android(推荐√)
• Android-使用JsBridge来优化js与本地webview的交互
• AgentWeb中JS交互开发
• 安卓与html混合开发之原生与js相互调用（推荐√）

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