mono for android 读取网络远程图片

布局

<?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"    >  <Button  android:id="@+id/btn"  android:layout_width="fill_parent"  android:layout_height="wrap_content"  android:text="查看" />  <ImageButton  android:id="@+id/imageView"  android:layout_width="fill_parent"  android:layout_height="200px" /></LinearLayout>

C#代码

        protected override void OnCreate(Bundle bundle)        {            base.OnCreate(bundle);            // Set our view from the "main" layout resource            SetContentView(Resource.Layout.Main);            Button btn = FindViewById<Button>(Resource.Id.btn);                       btn.Click += new EventHandler(btn_Click);                                }        void btn_Click(object sender, EventArgs e)        {            ImageView imgview = FindViewById<ImageView>(Resource.Id.imageView);            imgview.SetImageBitmap(getImage("http://hiphotos.baidu.com/baidu/pic/item/7d8aebfebf3f9e125c6008d8.jpg"));        }        public static Bitmap getImage(string imagepath) {                        URL url=null;            Bitmap bitmap = null;            try            {                url = new URL(imagepath);            }            catch (Exception e)            {            }             HttpURLConnection conn = (HttpURLConnection)url.OpenConnection();            conn.DoInput = true;            conn.Connect();            System.IO.Stream str = conn.InputStream;            bitmap = BitmapFactory.DecodeStream(str);            str.Close();            return bitmap;        }

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