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Fixes local position late initialization (#2884)

pull/2893/head
martyfuhry 2023-06-20 20:58:17 +07:00 committed by GitHub
parent 6baeca654b
commit 26f58d3335
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1 changed files with 7 additions and 2 deletions
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9
mobile/lib/modules/asset_viewer/views/gallery_viewer.dart
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@ -52,7 +52,7 @@ class GalleryViewerPage extends HookConsumerWidget {
final showAppBar = useState<bool>(true); final showAppBar = useState<bool>(true);
final isPlayingMotionVideo = useState(false); final isPlayingMotionVideo = useState(false);
final isPlayingVideo = useState(false); final isPlayingVideo = useState(false);
late Offset localPosition; Offset? localPosition;
final authToken = 'Bearer ${Store.get(StoreKey.accessToken)}'; final authToken = 'Bearer ${Store.get(StoreKey.accessToken)}';
final currentIndex = useState(initialIndex); final currentIndex = useState(initialIndex);
final currentAsset = loadAsset(currentIndex.value); final currentAsset = loadAsset(currentIndex.value);
@ -246,8 +246,13 @@ class GalleryViewerPage extends HookConsumerWidget {
return; return;
} }
// Guard [localPosition] null
if (localPosition == null) {
return;
}
// Check for delta from initial down point // Check for delta from initial down point
final d = details.localPosition - localPosition; final d = details.localPosition - localPosition!;
// If the magnitude of the dx swipe is large, we probably didn't mean to go down // If the magnitude of the dx swipe is large, we probably didn't mean to go down
if (d.dx.abs() > dxThreshold) { if (d.dx.abs() > dxThreshold) {
return; return;