android用WebView显示包含文字和图片的本地网页(支持放大缩小)

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前言

在android的实际开发中有时候我们需要将文字和图片一起显示,可以用TextView和ImageView的组合来实现,其实用网页显示更容易,本文介绍android显示含有图片和文字的本地网页html,hml的方法,并支持放大缩小。

注:本文demo源码下载地址:http://download.csdn.net/detail/dxzysk/5788093

 

一、效果图

Demo制作的网页显示效果如下图所示:

界面不是很漂亮,大家按照需要修改一下

二、部分代码

 

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;@Overridepublic 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 blocke.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");}}

 

布局文件

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:orientation="vertical"android:layout_width="fill_parent"android:layout_height="fill_parent"><WebViewandroid:id="@+id/show"  android:layout_width="fill_parent" android:layout_height="fill_parent" /></LinearLayout>


 

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