將網頁嵌入到android應用中

package com.vimi8.app.activity;

import android.content.Context;
import android.os.Bundle;
import android.view.KeyEvent;
import android.webkit.JavascriptInterface;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;

import com.vimi8.app.R;
import com.vimi8.app.framework.ActivityBase;

/**
 * Created by vimi8 on 2017/4/18.
 */

public class YyxText extends ActivityBase {

    private WebView myWebView ;


    @Override
    protected void initVariables(Bundle savedInstanceState) {

    }

    @Override
    protected int initLayoutViews() {
        return R.layout.yyx_text;
    }

    @Override
    protected void initViewsAndStaticData() {
        //獲取webview控件
        myWebView = (WebView) findViewById(R.id.web_view);
        //加載服務器上的頁面
        myWebView.loadUrl("http://www.baidu.com");
        //加載本地中的html
        //myWebView.loadUrl("file:///android_asset/www/test2.html");
        //加上下面這段代碼可以使網頁中的鏈接不以瀏覽器的方式打開
        myWebView.setWebViewClient(new WebViewClient());
        //得到webview設置
        WebSettings webSettings = myWebView.getSettings();
        //允許使用javascript
        webSettings.setJavaScriptEnabled(true);
        //將WebAppInterface於javascript綁定
        myWebView.addJavascriptInterface(new WebAppInterface(this), "Android");
    }


    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if ((keyCode == KeyEvent.KEYCODE_BACK) && myWebView.canGoBack()) {
            myWebView.goBack();
            return true;
        }
        return super.onKeyDown(keyCode, event);
    }



    public class WebAppInterface {
        Context mContext;

        /** Instantiate the interface and set the context */
        WebAppInterface(Context c) {
            mContext = c;
        }

        /** Show a toast from the web page */
        @JavascriptInterface
        public void showToast(String toast) {
            Toast.makeText(mContext, toast, Toast.LENGTH_SHORT).show();
        }
    }

}

下面是HTML代碼

<input type="button" value="Say hello" onClick="showAndroidToast('Hello Android!')" />
這裏調用android中的方法
        <script type="text/javascript">
        function showAndroidToast(toast) {
    Android.showToast(toast);
}