安卓WebView

package com.ics.aop.activity;

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ProgressBar;

import com.ics.aop.ApiUrl;
import com.ics.aop.R;

public class WebIEactivity extends BaseActivity {

    // 进度条
    private ProgressBar load_pro;

    private WebView webview;

    private String homeUrl = ApiUrl.API_WEBIE;
    private String currentUrl;

    private Context mContext;

    @SuppressLint("SetJavaScriptEnabled")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_webie);
        mContext = getApplicationContext();
        setTitle("在线功能");

        load_pro = (ProgressBar) findViewById(R.id.load_pro);

        webview = (WebView) findViewById(R.id.webview);

        // 设置WebView属性，能够执行Javascript脚本

        WebSettings settings = webview.getSettings();
        settings.setJavaScriptEnabled(true);
        settings.setBuiltInZoomControls(true);

        // 设置显示完整网页
        settings.setUseWideViewPort(true);
        settings.setLoadWithOverviewMode(true);
        settings.setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK); 

        //settings.setSupportMultipleWindows(true);


        webview.setWebViewClient(new WebViewClient() {
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                if (TextUtils.equals(currentUrl, homeUrl)) {
                    view.loadUrl(url);
                } else {
                    Intent secondIntent = new Intent(mContext, SecondWebActivity.class);
                    secondIntent.putExtra("url", url);
                    startActivity(secondIntent);
                }
                return true;
            }
        });

        webview.loadUrl(homeUrl);

        // 显示加载进度条
        webview.setWebChromeClient(new WebChromeClient() {
            @Override
            public void onProgressChanged(WebView view, int newProgress) {
                if (newProgress == 100) {
                    load_pro.setVisibility(View.GONE);
                } else {
                    if (load_pro.getVisibility() == View.GONE)
                        load_pro.setVisibility(View.VISIBLE);
                    load_pro.setProgress(newProgress);
                }
            }

        });
    }

    /*@Override
    public void onBackPressed() {
        // TODO Auto-generated method stub
        if (!TextUtils.equals(currentUrl, homeUrl) && webview.canGoBack()) {
            webview.goBack();
        } else {
            super.onBackPressed();
        }
    }*/
}

xml文件：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >
    <LinearLayout
        android:id="@+id/about_layout3"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_marginBottom="40dip"
        android:background="@android:color/transparent"
        android:orientation="vertical" >

        <ProgressBar
            android:id="@+id/load_pro"
            style="?android:attr/progressBarStyleHorizontal"
            android:layout_width="fill_parent"
            android:layout_height="2dip"
            android:max="100"
            android:visibility="gone" />

        <WebView
            android:id="@+id/webview"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent" >
        </WebView>

    </LinearLayout>

</RelativeLayout>