更新 PickerModule.java

@@ -344,6 +344,7 @@ class PickerModule extends ReactContextBaseJavaModule implements ActivityEventLi
 
             if (cropping || mediaType.equals("photo")) {
                 final Intent libraryIntent = new Intent(Intent.ACTION_PICK,MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
+                libraryIntent.setType("image/*");
                 activity.startActivityForResult(libraryIntent, IMAGE_PICKER_REQUEST);
                 return;
             }