public override View GetView(int position, View convertView, ViewGroup parent)
{
var view = convertView;
// Reuse an existing view, if one is available, otherwise create a new one
if (view == null)
{
view = context.LayoutInflater.Inflate(Resource.Layout.POIListItem, null, false);
}
PointOfInterest poi = this [position];
view.FindViewById <TextView>(Resource.Id.nameTextView).Text = poi.Name;
if (String.IsNullOrEmpty(poi.Address))
{
view.FindViewById <TextView>(Resource.Id.addrTextView).Visibility = ViewStates.Gone;
}
else
{
view.FindViewById <TextView>(Resource.Id.addrTextView).Text = poi.Address;
}
var imageView = view.FindViewById <ImageView>(Resource.Id.poiImageView);
if (!String.IsNullOrEmpty(poi.Address))
{
Koush.UrlImageViewHelper.SetUrlDrawable(imageView, poi.Image, Resource.Drawable.ic_placeholder);
}
var distanceTextView = view.FindViewById <TextView>(Resource.Id.distanceTextView);
if ((CurrentLocation != null) && (poi.Latitude.HasValue) && (poi.Longitude.HasValue))
{
Location poiLocation = new Location("");
poiLocation.Latitude = poi.Latitude.Value;
poiLocation.Longitude = poi.Longitude.Value;
float distance = CurrentLocation.DistanceTo(poiLocation) * 0.000621371F;
distanceTextView.Text = String.Format("{0:0,0.00} miles", distance);
}
else
{
distanceTextView.Text = "??";
}
return(view);
}
public override View GetView(int position, View convertView, ViewGroup parent)
{
View view = convertView;
if (view == null)
{
view = _context.LayoutInflater.Inflate(Resource.Layout.POIListItem, null);
}
PointOfInterest poi = POIData.Service.POIs [position];
//load image into image view
Bitmap poiImage = POIData.GetImageFile(poi.Id.Value);
view.FindViewById <ImageView> (Resource.Id.poiImageView).SetImageBitmap(poiImage);
if (poiImage != null)
{
poiImage.Dispose();
}
view.FindViewById <TextView> (Resource.Id.nameTextView).Text = poi.Name;
if (string.IsNullOrEmpty(poi.Address))
{
view.FindViewById <TextView> (Resource.Id.addrTextView).Visibility = ViewStates.Gone;
}
else
{
view.FindViewById <TextView> (Resource.Id.addrTextView).Text = poi.Address;
}
if ((CurrentLocation != null) && (poi.Latitude.HasValue) && (poi.Longitude.HasValue))
{
Location poiLocation = new Location("");
poiLocation.Latitude = poi.Latitude.Value;
poiLocation.Longitude = poi.Longitude.Value;
float distance = CurrentLocation.DistanceTo(poiLocation) / 1000; //原單位為公尺；若乘以 0.000621371F表以英哩顯示;
view.FindViewById <TextView> (Resource.Id.distanceTextView).Text =
String.Format("{0:0,0.00} 公里", distance);
}
else
{
view.FindViewById <TextView> (Resource.Id.distanceTextView).Text = "??";
}
return(view);
}
public override View GetView(int position, View convertView, ViewGroup parent)
{
var view = convertView;
if (view == null)
{
view = _context.LayoutInflater.Inflate(Resource.Layout.POIListItem, null);
}
var poi = POIData.Service.POIs[position];
view.FindViewById <TextView>(Resource.Id.nameTextView).Text = poi.Name;
if (string.IsNullOrWhiteSpace(poi.Address))
{
view.FindViewById <TextView>(Resource.Id.addressTextView).Visibility = ViewStates.Gone;
}
else
{
view.FindViewById <TextView>(Resource.Id.addressTextView).Text = poi.Address;
}
if (CurrentLocation != null && poi.Latitude.HasValue && poi.Longitude.HasValue)
{
var poiLocation = new Location(String.Empty);
poiLocation.Latitude = poi.Latitude.Value;
poiLocation.Longitude = poi.Longitude.Value;
float distance = CurrentLocation.DistanceTo(poiLocation) * 0.000621371F; // this magic number converts from meters to miles
view.FindViewById <TextView>(Resource.Id.distanceTextView).Text = String.Format("{0:0,0.00} miles", distance);
}
else
{
view.FindViewById <TextView>(Resource.Id.distanceTextView).Text = "??";
}
var poiImage = POIData.GetImageFile(poi.Id.Value);
view.FindViewById <ImageView>(Resource.Id.poiImageView).SetImageBitmap(poiImage);
if (poiImage != null)
{
poiImage.Dispose();
}
return(view);
}