properly remove all listeners in lazy_loading_gallery.dart
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@ -65,19 +65,7 @@ class _LazyLoadingGalleryState extends State<LazyLoadingGallery> {
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@override
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void initState() {
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//this is for removing the 'select all from day' icon on unselecting all files with 'cancel'
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widget.selectedFiles.addListener(() {
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if (widget.selectedFiles.files.isEmpty) {
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_shouldSelectAll.value = false;
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_showSelectAllButton.value = false;
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//Needs rebuilding for removing the 'select all from day' button on canceling all
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//selections after scrolling considerably down
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if (mounted) {
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setState(() {});
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}
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} else {
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_showSelectAllButton.value = true;
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}
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});
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widget.selectedFiles.addListener(_selectedFilesListener);
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super.initState();
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_init();
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}
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@ -149,8 +137,7 @@ class _LazyLoadingGalleryState extends State<LazyLoadingGallery> {
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void dispose() {
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_reloadEventSubscription.cancel();
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_currentIndexSubscription.cancel();
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widget.selectedFiles.removeListener(() {});
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_shouldSelectAll.removeListener(() {});
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widget.selectedFiles.removeListener(_selectedFilesListener);
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super.dispose();
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}
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@ -239,6 +226,20 @@ class _LazyLoadingGalleryState extends State<LazyLoadingGallery> {
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children: childGalleries,
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);
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}
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void _selectedFilesListener() {
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if (widget.selectedFiles.files.isEmpty) {
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_shouldSelectAll.value = false;
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_showSelectAllButton.value = false;
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//Needs rebuilding for removing the 'select all from day' button on canceling all
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//selections after scrolling considerably down
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if (mounted) {
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setState(() {});
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}
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} else {
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_showSelectAllButton.value = true;
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}
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}
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}
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class LazyLoadingGridView extends StatefulWidget {
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@ -287,20 +288,16 @@ class _LazyLoadingGridViewState extends State<LazyLoadingGridView> {
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}
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});
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widget.selectedFiles.addListener(() {
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bool shouldRefresh = false;
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for (final file in widget.files) {
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if (widget.selectedFiles.isPartOfLastSection(file)) {
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shouldRefresh = true;
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}
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}
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if (shouldRefresh && mounted) {
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setState(() {});
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}
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});
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widget.selectedFiles.addListener(_selectedFilesListener);
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super.initState();
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}
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@override
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void dispose() {
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widget.selectedFiles.removeListener(_selectedFilesListener);
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super.dispose();
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}
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@override
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void didUpdateWidget(LazyLoadingGridView oldWidget) {
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super.didUpdateWidget(oldWidget);
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@ -443,4 +440,16 @@ class _LazyLoadingGridViewState extends State<LazyLoadingGridView> {
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);
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routeToPage(context, page, forceCustomPageRoute: true);
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}
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void _selectedFilesListener() {
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bool shouldRefresh = false;
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for (final file in widget.files) {
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if (widget.selectedFiles.isPartOfLastSection(file)) {
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shouldRefresh = true;
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}
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}
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if (shouldRefresh && mounted) {
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setState(() {});
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}
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}
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}
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