import android.content.Context;
import android.os.Build;
import android.os.Handler;
import android.os.Looper;
import android.support.annotation.RequiresApi;
import android.util.Log;
import android.webkit.JavascriptInterface;
import android.webkit.ValueCallback;
import android.widget.Toast;
import com.just.agentweb.AgentWeb;
import com.yidumedical.ui.activity.PAWebActivity;

/**
 * Created by shiby on 2018/1/24.
 */

public class AndroidInterfaceForJS {

 private Handler deliver = new Handler(Looper.getMainLooper());
 private AgentWeb agent;
 private Context context;

 public AndroidInterfaceForJS(AgentWeb agent, Context context) {
  this.agent = agent;
  this.context = context;
 }

 @JavascriptInterface
 public void callAndroid(final String msg) {
  deliver.post(new Runnable() {
   @Override
   public void run() {
    Log.i("Info", "main Thread:" + Thread.currentThread());
    Toast.makeText(context.getApplicationContext(), "" + msg, Toast.LENGTH_LONG).show();
   }
  });
  Log.i("Info", "Thread:" + Thread.currentThread());

 }

}

private void init(){
 mAgentWeb = AgentWeb
   .with(this)//传入Activity or Fragment
   .setAgentWebParent(mLinearLayout, new LinearLayout.LayoutParams(-1, -1))//传入AgentWeb 的父控件 ，如果父控件为 RelativeLayout ， 那么第二参数需要传入 RelativeLayout.LayoutParams ,第一个参数和第二个参数应该对应。
   .useDefaultIndicator()// 使用默认进度条
   .defaultProgressBarColor() // 使用默认进度条颜色
   .createAgentWeb()//
   .ready()
   .go(baseURL);
 //注入对象
 mAgentWeb.getJsInterfaceHolder().addJavaObject("android",new AndroidInterfaceForJS(mAgentWeb,this.getApplicationContext()));
 AgentWebSettings agentWebSettings = mAgentWeb.getAgentWebSettings();
 agentWebSettings.getWebSettings().setDomStorageEnabled(true);
}
注入对象：
 //注入对象
 mAgentWeb.getJsInterfaceHolder().addJavaObject("android",new AndroidInterfaceForJS(mAgentWeb,this.getApplicationContext()));

import {android} from '../app'
try {
android.callAndroid('调用成功，耶！！！')
} catch (e) {
console.log('出现错误, 如果在非android环境下访问, 出现该警告是正常的.')
}

 methods:{
  goPublish(){
   //将vue项目引入至安卓代码中，安卓方法暴露在window中，vue中可以直接用window去调取方法。
   window.android.callAndroidMethod('1','2')
  }
 }

 created(){
 //需要在created钩子中将方法添加到window对象中
  window.setFun = this.setFun;
 },
 methods:{
  setFun(arg) {
   //arg: 原生调用Vue时传值（arg）给Vue
   console.log("获取到android的传参:" + arg);
  },
 }