[NUI] Fix dispose timing error for ImageUrl

Since we update ImageView lazy, ImageUrl's lifecycle might not matched
what user think.

```
ImageUrl imageUrl = ~~~.GenerateUrl();
ImageView imageView = new ImageView(imageUrl.ToString());
imageUrl.Dispose(); ///< We should allow this situation.
```

To make scene, We allow to call UpdateImage(); synchoronously
if we use GeneratedUrl().

Signed-off-by: Eunki Hong <eunkiki.hong@samsung.com>

diff --git a/src/Tizen.NUI/src/public/BaseComponents/ImageView.cs b/src/Tizen.NUI/src/public/BaseComponents/ImageView.cs
index 014ade7..295c04c 100755 (executable)
--- a/src/Tizen.NUI/src/public/BaseComponents/ImageView.cs
+++ b/src/Tizen.NUI/src/public/BaseComponents/ImageView.cs
@@ -1297,6 +1297,11 @@ namespace Tizen.NUI.BaseComponents
                     {
                         UpdateImage(ImageVisualProperty.URL, setValue);
                     }
+                    // Special case. If we set GeneratedUrl, Create ImageVisual synchronously.
+                    if(value.StartsWith("dali://") || value.StartsWith("enbuf://"))
+                    {
+                        UpdateImage();
+                    }
                 }
             }
         }

diff --git a/test/Tizen.NUI.Samples/Tizen.NUI.Samples/Samples/EncodedImageSample.cs b/test/Tizen.NUI.Samples/Tizen.NUI.Samples/Samples/EncodedImageSample.cs
index 4900772..45bc6ad 100755 (executable)
--- a/test/Tizen.NUI.Samples/Tizen.NUI.Samples/Samples/EncodedImageSample.cs
+++ b/test/Tizen.NUI.Samples/Tizen.NUI.Samples/Samples/EncodedImageSample.cs
@@ -30,6 +30,9 @@ namespace Tizen.NUI.Samples
                 ResourceUrl = imageUrl?.ToString(),
             };
 
+            imageUrl?.Dispose();
+            buffer?.Dispose();
+
             win.GetDefaultLayer().Add(imageView);
         }