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feat(mobile): auto close memories on scrolling beyond first / last memory (#3476)

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* feat(mobile): Close on scroll beyond first / last memory

* fix(mobile): close memory only on the last asset
This commit is contained in:
shalong-tanwen
2023-07-31 18:14:17 +00:00
committed by GitHub
parent c587fb1df8
commit e0a3e5a200
1 changed files with 47 additions and 3 deletions
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50
mobile/lib/modules/memories/views/memory_page.dart
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@@ -64,6 +64,11 @@ class MemoryPage extends HookConsumerWidget {
return;
}
// Context might be removed due to popping out of Memory Lane during Scroll handling
if (!context.mounted) {
return;
}
late Asset asset;
if (index < currentMemory.value.assets.length) {
// Uses the next asset in this current memory
@@ -160,18 +165,51 @@ class MemoryPage extends HookConsumerWidget {
*/
return NotificationListener<ScrollNotification>(
onNotification: (ScrollNotification notification) {
// Calculate OverScroll manually using the number of pixels away from maxScrollExtent
// maxScrollExtend contains the sum of horizontal pixels of all assets for depth = 1
// or sum of vertical pixels of all memories for depth = 0
if (notification is ScrollUpdateNotification) {
final offset = notification.metrics.pixels;
final isLastMemory =
(memories.indexOf(currentMemory.value) + 1) >= memories.length;
if (isLastMemory) {
// Vertical scroll handling only at the last asset.
// Tapping on the last asset instead of swiping will trigger the scroll
// implicitly which will trigger the below handling and thereby closes the
// memory lane as well
if (notification.depth == 0) {
final isLastAsset = (currentAssetPage.value + 1) ==
currentMemory.value.assets.length;
if (isLastAsset &&
(offset > notification.metrics.maxScrollExtent + 150)) {
AutoRouter.of(context).pop();
return true;
}
}
// Horizontal scroll handling
if (notification.depth == 1 &&
(offset > notification.metrics.maxScrollExtent + 100)) {
AutoRouter.of(context).pop();
return true;
}
}
}
if (notification.depth == 0) {
var currentPageNumber = memoryPageController.page!.toInt();
currentMemory.value = memories[currentPageNumber];
if (notification is ScrollStartNotification) {
assetProgress.value = "";
} else if (notification is ScrollEndNotification) {
return true;
}
var currentPageNumber = memoryPageController.page!.toInt();
currentMemory.value = memories[currentPageNumber];
if (notification is ScrollEndNotification) {
HapticFeedback.mediumImpact();
if (currentPageNumber != previousMemoryIndex.value) {
currentAssetPage.value = 0;
previousMemoryIndex.value = currentPageNumber;
}
updateProgressText();
return true;
}
}
return false;
@@ -180,6 +218,9 @@ class MemoryPage extends HookConsumerWidget {
backgroundColor: bgColor,
body: SafeArea(
child: PageView.builder(
physics: const BouncingScrollPhysics(
parent: AlwaysScrollableScrollPhysics(),
),
scrollDirection: Axis.vertical,
controller: memoryPageController,
itemCount: memories.length,
@@ -189,6 +230,9 @@ class MemoryPage extends HookConsumerWidget {
children: [
Expanded(
child: PageView.builder(
physics: const BouncingScrollPhysics(
parent: AlwaysScrollableScrollPhysics(),
),
controller: memoryAssetPageController,
onPageChanged: onAssetChanged,
scrollDirection: Axis.horizontal,