[image_picker] delete original file if scaled (flutter#1288)

fixed flutter/flutter#23500

packages/image_picker/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.5.0+6
+
+* Delete the original image if it was scaled.
+
 ## 0.5.0+5
 
 Remove unnecessary camera permmision.

packages/image_picker/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerDelegate.java

@@ -429,6 +429,11 @@ private void handleImageResult(String path) {
 
       String finalImagePath = imageResizer.resizeImageIfNeeded(path, maxWidth, maxHeight);
       finishWithSuccess(finalImagePath);
+
+      //delete original file if scaled
+      if (!finalImagePath.equals(path)) {
+        new File(path).delete();
+      }
     } else {
       throw new IllegalStateException("Received image from picker that was not requested");
     }

packages/image_picker/pubspec.yaml

@@ -5,7 +5,7 @@ authors:
   - Flutter Team <[email protected]>
   - Rhodes Davis Jr. <[email protected]>
 homepage: https://github.com/flutter/plugins/tree/master/packages/image_picker
-version: 0.5.0+5
+version: 0.5.0+6
 
 flutter:
   plugin: