<!--訪問網絡的權限--> <uses-permission android:name="android.permission.INTERNET"/> 

/**    * 獲取網絡圖片的數據    * @param path 網絡圖片路徑    * @return    * @throws Exception    */   public static byte[] getImage(String path) throws Exception {     URL url=new URL(path);     HttpURLConnection conn=(HttpURLConnection)url.openConnection();//得到基于HTTP協議的連接對象     conn.setConnectTimeout(5000);//設置超時時間     conn.setRequestMethod("GET");//請求方式     if(conn.getResponseCode()==200){//判斷是否請求成功       InputStream inputStream=conn.getInputStream();       return read(inputStream);     }     return null;   }   /**    * 讀取流中的數據    */   public static byte[] read(InputStream inputStream) throws IOException {     ByteArrayOutputStream outputStream=new ByteArrayOutputStream();     byte[] b=new byte[1024];     int len=0;     while((len=inputStream.read(b))!=-1){       outputStream.write(b);     }     inputStream.close();     return outputStream.toByteArray();   } 

public class NetimageActivity extends Activity {   private EditText pathText;   private ImageView imageView;   @Override   public void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.main);          pathText=(EditText)this.findViewById(R.id.imagepath);//圖片路徑     imageView=(ImageView)this.findViewById(R.id.imageView);//顯示圖片控件     Button button=(Button)this.findViewById(R.id.button);//查看圖片按鈕     button.setOnClickListener(new ButtonClickListener());//注冊查看圖片按鈕事件   }   /**    * 處理查看圖片按鈕事件    */   private final class ButtonClickListener implements View.OnClickListener{     @Override     public void onClick(View v) {       //取得圖片路徑       String path=pathText.getText().toString();       try {         //獲取圖片數據         byte[] data=ImageService.getImage(path);         //使用數組的所有數據構建位圖對象         Bitmap bitmap=BitmapFactory.decodeByteArray(data, 0, data.length);         imageView.setImageBitmap(bitmap);//顯示圖片       } catch (Exception e) {         e.printStackTrace();         Toast.makeText(getApplicationContext(), R.string.error, 1).show();       }     }   } }