public class ProgressBarWebView extends WebView{}

public ProgressBarWebView(Context context) {
 super(context);
 }

public ProgressBarWebView(Context context, AttributeSet attrs) {
 super(context, attrs);
 }

public ProgressBarWebView(Context context, AttributeSet attrs,
  int defStyleAttr) {
 super(context, attrs, defStyleAttr);
 }

//首選創(chuàng)建一個(gè)進(jìn)度條，我們這里創(chuàng)建的是一個(gè)橫向的進(jìn)度條
progressBar = new ProgressBar(context, null, android.R.attr.progressBarStyleHorizontal); 
//設(shè)置該進(jìn)度條的位置參數(shù)
progressBar.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, 10, 0, 0)); 
//我們想要設(shè)置該進(jìn)度條的背景樣式 
Drawable drawable = context.getResources().getDrawable(R.drawable.progress_bar_states);
//設(shè)置背景樣式 
progressBar.setProgressDrawable(drawable); 
//調(diào)用本身的addView（其實(shí)是調(diào)用ViewManager里的方法，看源碼）方法講進(jìn)度條添加到當(dāng)前布局視圖中
addView(progressBar); 
//正常想獲取或這進(jìn)行交互一般要實(shí)現(xiàn)一下兩個(gè)方法，Myweblient()可以限制不用手機(jī)本身的瀏覽器，MyChromeClient（）可以獲得網(wǎng)頁加載的進(jìn)度，title等
setWebViewClient(new Myweblient()); 
setWebChromeClient(new MyChromeClient()); 
//是否可以縮放 
getSettings().setSupportZoom(true); 
getSettings().setBuiltInZoomControls(true); 

//需要自己設(shè)置要不會(huì)打開手機(jī)瀏覽器
 private class Myweblient extends WebViewClient{
 @Override
 public boolean shouldOverrideUrlLoading(WebView view, String url) {
  view.loadUrl(url);
  return true;
 }
 }

private class MyChromeClient extends WebChromeClient{
 @Override 
 public void onProgressChanged(WebView view, int newProgress) { 
  if (newProgress == 100) { //當(dāng)網(wǎng)頁全部加載完畢時(shí)
  progressBar.setVisibility(GONE); 
  } else { 
  if (progressBar.getVisibility() == GONE) 
   progressBar.setVisibility(VISIBLE); 
  progressBar.setProgress(newProgress); 
  } 
  super.onProgressChanged(view, newProgress); 
 } 

 }

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
 <!-- 進(jìn)度條背景 -->
 <item android:id="@android:id/background"> 
 <shape> 
  <corners android:radius="2dp" /> 

  <gradient 
  android:angle="270" 
  android:centerColor="#E3E3E3" 
  android:endColor="#E6E6E6" 
  android:startColor="#C8C8C8" /> 
 </shape> 
 </item> 
 <!-- 綠色的進(jìn)度值 -->
 <item android:id="@android:id/progress"> 
 <clip> 
  <shape> 
  <corners android:radius="2dp" /> 

  <gradient 
   android:centerColor="#4AEA2F" 
   android:endColor="#31CE15" 
   android:startColor="#5FEC46" /> 
  </shape> 
 </clip> 
 </item>

</layer-list>

//布局中
<com.example.videodemo.ProgressBarWebView 
 android:id="@+id/ss"
 android:layout_width="match_parent"
 android:layout_height="match_parent"/>

ProgressBarWebView webView=(ProgressBarWebView) findViewById(R.id.ss);
webView.loadUrl("http://www.baidu.com/");