Android加载WebView

import android.content.Context;import android.net.Uri;import android.os.Bundle;import android.view.View;import android.webkit.WebSettings;import android.webkit.WebView;import android.webkit.WebViewClient;import android.widget.ImageView;import android.widget.TextView;import com.android.volley.RequestQueue;import com.android.volley.toolbox.Volley;import com.google.android.gms.appindexing.Action;import com.google.android.gms.appindexing.AppIndex;import com.google.android.gms.appindexing.Thing;import com.google.android.gms.common.api.GoogleApiClient;import org.apache.http.util.EncodingUtils;import java.util.Iterator;import java.util.Set;import java.util.TreeMap;public class WebBusinessActivity extends BaseActivity implements View.OnClickListener {    private String TAG = "WebBusinessActivity";    private Context mContext;    private SPUtil spUtil;    private RequestQueue requestQueue;    private WebView wv;    private GoogleApiClient client;    private String key_sort_url = "";    private String substring_url = "";    @Override    protected void initActivity() {        setContentView(R.layout.activity_web_business);        mContext = this;        spUtil = SPUtil.getInstance(mContext);        requestQueue = Volley.newRequestQueue(mContext);        initView();        initWebView();        API_Business_Center();    }    private void initWebView() {        WebSettings settings = wv.getSettings();        settings.setJavaScriptCanOpenWindowsAutomatically(true);//JS互调        settings.setJavaScriptEnabled(true);        settings.setDefaultTextEncodingName("utf-8");        settings.setBuiltInZoomControls(true);        settings.setSupportZoom(true);        settings.setUseWideViewPort(true);        settings.setLoadWithOverviewMode(true);        settings.setDomStorageEnabled(true); // 开启 DOM storage API 功能        settings.setDatabaseEnabled(true);        wv.setWebViewClient(webViewClient);    }    private void API_Business_Center() {        // 请求网络    }    // 请求到数据后的处理    VolleyRequest volleyRequest = new VolleyRequest() {        @Override        protected void onMyResponse(String response) {            _Return Re = new _Return(response);            if (Re.isSuccess(mContext)) {                _WebViewMortgage webViewMortgage = new _WebViewMortgage(Re.getData());                initUrl(wv, webViewMortgage.getUrl(), webViewMortgage.getApi());            }        }    };    private void initUrl(WebView webView, String countUrl, String countApi) {        TreeMap<String, String> params = geturl(countApi);        //        UtilsTools.Log_e(TAG, "要传的map里的数据" + params.toString());        Set<String> keySet = params.keySet();        Iterator<String> iter = keySet.iterator();        while (iter.hasNext()) {            String key = iter.next();            key_sort_url = key_sort_url + key + "=" + params.get(key) + "&";            //            UtilsTools.Log_e(TAG, "遍历map拿到所有KEY+vaule拼成字符串" + key_sort_url);            substring_url = key_sort_url.substring(0, key_sort_url.length() - 1);            //            UtilsTools.Log_e(TAG, "截取字符串:" + substring_url);        }        webView.postUrl(countUrl, EncodingUtils.getBytes(substring_url, "BASE64"));    }    private TreeMap<String, String> geturl(String countApi) {        TreeMap<String, String> map = new TreeMap();        map.put("xxx", "xxxxxxxxx");        return map;    }    private void initView() {        TextView tv_title_bar_title = (TextView) findViewById(R.id.tv_title_bar_title);        tv_title_bar_title.setVisibility(View.VISIBLE);        tv_title_bar_title.setText("标题");        ImageView iv_title_bar_left = (ImageView) findViewById(R.id.iv_title_bar_left);        iv_title_bar_left.setVisibility(View.VISIBLE);        iv_title_bar_left.setImageResource(R.mipmap.ic_back);        iv_title_bar_left.setOnClickListener(this);        wv = (WebView) findViewById(R.id.wv_main_mortgage);    }    WebViewClient webViewClient = new WebViewClient() {        @Override        public boolean shouldOverrideUrlLoading(WebView view, String request) {            view.loadUrl(request);            return true;        }    };    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        // ATTENTION: This was auto-generated to implement the App Indexing API.        // See https://g.co/AppIndexing/AndroidStudio for more information.        client = new GoogleApiClient.Builder(this).addApi(AppIndex.API).build();    }    /**     * ATTENTION: This was auto-generated to implement the App Indexing API.     * See https://g.co/AppIndexing/AndroidStudio for more information.     */    public Action getIndexApiAction() {        Thing object = new Thing.Builder()                .setName("WebViewMortgage Page") // TODO: Define a title for the content shown.                // TODO: Make sure this auto-generated URL is correct.                .setUrl(Uri.parse("http://[ENTER-YOUR-URL-HERE]"))                .build();        return new Action.Builder(Action.TYPE_VIEW)                .setObject(object)                .setActionStatus(Action.STATUS_TYPE_COMPLETED)                .build();    }    @Override    public void onStart() {        super.onStart();        client.connect();        AppIndex.AppIndexApi.start(client, getIndexApiAction());    }    @Override    public void onStop() {        super.onStop();        AppIndex.AppIndexApi.end(client, getIndexApiAction());        client.disconnect();    }    @Override    public void onClick(View view) {        switch (view.getId()) {            case R.id.iv_title_bar_left:                finish();                break;        }    }}

• 布局 :

<?xml version="1.0" encoding="utf-8"?><LinearLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    tools:context="com.yiban.caesar.Activity.Main.WebBusinessActivity">    <include layout="@layout/layout_title_bar"/>    <WebView        android:id="@+id/wv_main_mortgage"        android:layout_width="match_parent"        android:layout_height="match_parent"></WebView></LinearLayout>