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feat: pinch-to-zoom gestures for PDF reader & post editing for admins and authors
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Nizz05
2026-09-18 12:05:18 +02:00
parent a228392dc6
commit f10d5ad5ed
8 changed files with 884 additions and 203 deletions
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lib/screens/pdf_viewer_screen.dart
+58 -50
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@@ -191,61 +191,69 @@ class _PdfViewerScreenState extends State<PdfViewerScreen>
),
),
pagesBuilder: (context, pages) {
return GestureDetector(
behavior: HitTestBehavior.translucent,
onDoubleTapDown: (details) => _doubleTapDetails = details,
onDoubleTap: _handleDoubleTap,
child: InteractiveViewer(
transformationController: _transformationController,
minScale: 1.0,
maxScale: 5.0,
panEnabled: true,
scaleEnabled: true,
child: SingleChildScrollView(
physics: const BouncingScrollPhysics(),
padding: const EdgeInsets.symmetric(
horizontal: 8.0, vertical: 16.0),
child: Center(
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
for (int i = 0; i < pages.length; i++) ...[
Container(
margin: const EdgeInsets.only(bottom: 16),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(4),
boxShadow: [
BoxShadow(
color: Colors.black.withValues(alpha: 0.15),
blurRadius: 10,
offset: const Offset(0, 3),
return LayoutBuilder(
builder: (context, constraints) {
final viewportWidth = constraints.maxWidth;
return GestureDetector(
behavior: HitTestBehavior.translucent,
onDoubleTapDown: (details) => _doubleTapDetails = details,
onDoubleTap: _handleDoubleTap,
child: InteractiveViewer(
transformationController: _transformationController,
minScale: 1.0,
maxScale: 5.0,
panEnabled: true,
scaleEnabled: true,
constrained: false,
alignment: Alignment.topCenter,
child: SizedBox(
width: viewportWidth,
child: Padding(
padding: const EdgeInsets.symmetric(
horizontal: 8.0, vertical: 16.0),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
for (int i = 0; i < pages.length; i++) ...[
Container(
margin: const EdgeInsets.only(bottom: 16),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(4),
boxShadow: [
BoxShadow(
color:
Colors.black.withValues(alpha: 0.15),
blurRadius: 10,
offset: const Offset(0, 3),
),
],
),
],
),
child: Image(
image: pages[i].image,
fit: BoxFit.contain,
),
),
if (pages.length > 1)
Padding(
padding: const EdgeInsets.only(bottom: 12.0),
child: Text(
'Seite ${i + 1} von ${pages.length}',
style: TextStyle(
fontSize: 12,
fontWeight: FontWeight.w500,
color: Colors.grey.shade700,
child: Image(
image: pages[i].image,
fit: BoxFit.contain,
),
),
),
],
],
if (pages.length > 1)
Padding(
padding: const EdgeInsets.only(bottom: 12.0),
child: Text(
'Seite ${i + 1} von ${pages.length}',
style: TextStyle(
fontSize: 12,
fontWeight: FontWeight.w500,
color: Colors.grey.shade700,
),
),
),
],
],
),
),
),
),
),
),
);
},
);
},
),