imageviw.rb

Drawable = Android::Graphics::Drawable::Drawable
BitmapFactory = Android::Graphics::BitmapFactory
Toast = Android::Widget::Toast
Url = Java::Net::URL

class MyAsyncTask < Android::Os::AsyncTask
  attr :img
  def doInBackground(params)
    @img = params[1]
    puts "doInBackground #{params}"
    #self.publishProgress([1,2,3])
    url = Url.new(params[0])
    is = url.openStream()
    BitmapFactory.decodeStream(is);
  end

  def onPostExecute(result)
    puts "Result to Image"
    @img.setImageBitmap(result)
  end

end

class Imageviw < Android::App::Activity
  def onCreate(savedInstanceState)
    super
    #Android::Os::AsyncTask.execute(MyRunnable.new)
    setContentView(R::Layout::Image_viw)
    img = findViewById(R::Id::Imgfromurl)
    my_task = MyAsyncTask.new
    #url = "http://dcs.conac.cn/image/blue.png"
    url = "http://www.lwqzx.sdedu.net/ec/see/54518dcb444c2d4895010000"
    my_task.execute([url,img])
  end
end