android用WebView显示包含文字和图片的本地网页（支持放大缩小）

package nishik.ncc.html; import java.io.InputStream; import nishik.ncc.html.R; import android.app.Activity; import android.os.Bundle; import android.webkit.WebSettings.LayoutAlgorithm; import android.webkit.WebView; /** * Description: * <br/>site: <a href="http://www.crazyit.org">crazyit.org</a> * <br/>Copyright (C), 2001-2012, Yeeku.H.Lee * <br/>This program is protected by copyright laws. * <br/>Program Name: * <br/>Date: * @author Yeeku.H.Lee kongyeeku@163.com * @version 1.0 */ public class ViewHtml extends Activity { WebView wvShow; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // 获取程序中的WebView组件 wvShow = (WebView) findViewById(R.id.show); try { // wvShow.loadDataWithBaseURL(null, readText() // , "text/html" , "utf-8", null); //wvShow.loadUrl("/assets/help/main1.htm"); wvShow.loadUrl("file:///android_asset/help/2008.htm"); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } wvShow.getSettings().setLayoutAlgorithm(LayoutAlgorithm.SINGLE_COLUMN); wvShow.getSettings().setSupportZoom(true); wvShow.getSettings().setBuiltInZoomControls(true); } public String readText() throws Exception { //InputStream is = this.getClass() // .getResourceAsStream("/assets/text.txt"); //InputStream is = getAssets().open("main1.htm"); //InputStream is = getAssets().open("main1001.htm"); InputStream is = this.getClass() .getResourceAsStream("/assets/help/main1.htm"); int index = is.available(); byte data[] = new byte[index]; is.read(data); return new String(data, "UTF-8"); } }