Android使用互联网阅读的方法

using Android.App;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Widget;

namespace MyDemos.SrcDemos
{
  [Activity(Label = "【例12-3】读取图库图片")]
  public class ch1203ReadGallery : Activity
  {
    protected override void OnCreate(Bundle savedInstanceState)
    {
      base.OnCreate(savedInstanceState);
      SetContentView(Resource.Layout.ch1203_ReadGallery);
      var btn1 = FindViewById(Resource.Id.btn1);
      btn1.Click += delegate {
        var imageIntent = new Intent();
        imageIntent.SetType("image/*");
        imageIntent.SetAction(Intent.ActionGetContent);
        StartActivityForResult( Intent.CreateChooser(imageIntent, "选择的图片："), 0);
      };
    }

    protected override void OnActivityResult(int requestCode, [GeneratedEnum] Result resultCode, Intent data)
    {
      base.OnActivityResult(requestCode, resultCode, data);
      if (resultCode == Result.Ok)
      {
        var imageView = FindViewById(Resource.Id.myImageView);
        imageView.SetImageURI(data.Data);
      }
    }
  }
}