สอบถามเพื่อเป็นความรู้ครับ....เป็นไปได้ไหมครับที่จะเขียน android ด้วย .net c#

public class MainActivity extends Activity {
	  
    List <String> ImageList;
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        /*** Get Images from SDCard ***/
        ImageList = getSD();
        
        // listView1
        final ListView LView1 = (ListView)findViewById(R.id.listView1); 
        	
        LView1.setAdapter(new ImageAdapter(this,ImageList));
               
        final AlertDialog.Builder imageDialog = new AlertDialog.Builder(this);
        final LayoutInflater inflater = (LayoutInflater) this.getSystemService(LAYOUT_INFLATER_SERVICE);
        
        // OnClick
        LView1.setOnItemClickListener(new OnItemClickListener() {
			public void onItemClick(AdapterView<?> parent, View v,
				int position, long id) {
				
                View layout = inflater.inflate(R.layout.custom_fullimage_dialog,
                        (ViewGroup) findViewById(R.id.layout_root));
                ImageView image = (ImageView) layout.findViewById(R.id.fullimage);
                
                String strPath = ImageList.get(position).toString();
				Bitmap bm = BitmapFactory.decodeFile(strPath);
				int width=200;
			    int height=200;
			    Bitmap resizedbitmap = Bitmap.createScaledBitmap(bm, width, height, true);
				image.setImageBitmap(resizedbitmap);
				
                imageDialog.setIcon(android.R.drawable.btn_star_big_on);	
        		imageDialog.setTitle("View : " + ImageList.get(position).toString());
                imageDialog.setView(layout);
                imageDialog.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener(){

                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                    }

                });


                imageDialog.create();
                imageDialog.show(); 
		    	
			}
		});
    
      
    }

    private List <String> getSD()
    {
	    List <String> it = new ArrayList <String>();
	    File f = new File ("/mnt/sdcard/picture");
	    File[] files = f.listFiles ();
	    
	    for (int i = 0; i <files.length; i++)
	    {
	    	File  file = files[i];
	    	Log.d("Count",file.getPath());
		    it.add (file.getPath());
	    }
	    return it;
    }
}