在main.xml中：
<?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"
android:background="#3399ff">
<ImageView
android:id="@+id/img"
android:gravity="center_horizontal"
android:layout_marginTop="20dp"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
在MyWebDemo.java中：
package com.e.webproject;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.widget.ImageView;
public class MyWebDemo extends Activity {
private ImageView img = null;
private static final String PATH = "http://www.diyifanwen.com/images/guangxi/
0872402543275431.jpg"; // 请求地址
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.setContentView(R.layout.main);
this.img = (ImageView) super.findViewById(R.id.img);
try {
byte data [] = this.getUrlData() ;
Bitmap bm = BitmapFactory.decodeByteArray(data, 0, data.length); // 把二进制变为图片
this.img.setImageBitmap(bm) ;
} catch (Exception e) {
}
}
public byte[] getUrlData() throws Exception { // 通过此操作读取指定地址上的信息
ByteArrayOutputStream bos = null ; // 内存操作流完成
try {
URL url = new URL(PATH) ;
bos = new ByteArrayOutputStream() ;
byte data [] = new byte[1024] ;
HttpURLConnection conn = (HttpURLConnection) url.openConnection() ;
InputStream input = conn.getInputStream() ;
int len = 0 ;
while ((len = input.read(data)) != -1) {
bos.write(data, 0, len);
}
return bos.toByteArray() ;
} catch (Exception e) {
throw e ;
} finally {
if(bos != null) {
bos.close() ;
}
}
}
}
在AndroidManifest.xml中修改权限：
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.e.webproject"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<uses-permission android:name="android.permission.INTERNET" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MyWebDemo"
android:label="@string/title_activity_my_web_demo" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>