Android URl网络获取图片

1.获得url地址：http://169.254.202.149:8080/android/android.jpg   为本地地址资源   也可以使用网络上提供图片url地址
2.实例化URL:URL url=new URL(strUrl);
3.使用URL获得输入流:InputStream in=url.getInputStream();

4.通过BitmapFactory获得实例:Bitmap bm=BitmapFactory.decodeStream(in);

5.设置ImageView图片:image.setImageBitmap(bm);

 

声明文件中声明

 <uses-permission android:name="android.permission.INTERNET"/>

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

     <ImageView
         android:id="@+id/imageview"
         android:layout_width="fill_parent"
         android:layout_height="fill_parent"
         />

 </LinearLayout>

 

 

URLActivityActivity.java 

 package com.urlactivity;

 import java.io.InputStream;
 import java.net.URL;
 import java.net.URLConnection;

 import android.app.Activity;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.os.Bundle;
 import android.widget.ImageView;

 public class URLActivityActivity extends Activity {
     /** Called when the activity is first created. */
     private ImageView image=null;
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.main);
         image=(ImageView)findViewById(R.id.imageview);
         //网络提供图片Url  可以换网络任意图片url
         String strUrl="http://169.254.202.149:8080/android/android.jpg";
         try {
             //实例化url
             URL url=new URL(strUrl);
             //1.使用URL获得输入流
             InputStream in=url.openStream();
             //通过BitmapFactory获得实例
             Bitmap bm=BitmapFactory.decodeStream(in);
             image.setImageBitmap(bm);

         } catch (Exception e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
         }


     }
 }

结果：