150 lines
6.5 KiB
Dart
150 lines
6.5 KiB
Dart
import 'package:carousel_slider/carousel_slider.dart';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:image/image.dart' as image_lib;
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import 'package:stadtbote/model/task_info.dart';
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import 'package:stadtbote/tools/util.dart';
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Future<void> showTakePhotosPopup(BuildContext context, TaskInfo taskInfo, Function(List<Uint8List>) onFinished) async {
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List<Uint8List> imageDataList = [];
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List<Widget> imageWidgetsList = [];
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int currentCarousselSliderIndex = 0;
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ValueNotifier<List<Widget>> imageWidgetsListNotifier = ValueNotifier<List<Widget>>([]);
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await showDialog(
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context: context,
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builder: (BuildContext context) {
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return PopScope(
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canPop: false,
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onPopInvokedWithResult: (bool didPop, dynamic result) async {
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if (!didPop) {
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final shouldPop = await taskDialogSecurityException(context);
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if (shouldPop && context.mounted) {
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Navigator.of(context).pop();
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}
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}
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},
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child: AlertDialog(
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contentPadding: EdgeInsets.zero,
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shadowColor: Colors.transparent,
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backgroundColor: Colors.white,
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content: StatefulBuilder(builder: (BuildContext context, StateSetter setState) {
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void capturePhoto() async {
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try {
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var photo = await Util.capturePhoto();
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if (photo != null) {
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var fullsizeImageData = await photo.readAsBytes();
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image_lib.Image? image = image_lib.decodeImage(fullsizeImageData);
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if (image != null) {
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var thumbnail = image_lib.copyResize(image, width: 800);
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var resizedImageData = image_lib.encodeJpg(thumbnail, quality: 75);
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photo.delete();
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imageDataList.add(resizedImageData);
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imageWidgetsList.add(GestureDetector(
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onTap: () {},
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child: GestureDetector(
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onTap: () async {
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await showQuestionDialog(context, "Achtung", "Wollen Sie das Bild wirklich löschen?", [
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TextButton(onPressed: () => {Navigator.of(context).pop(),
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imageDataList.removeAt(currentCarousselSliderIndex),
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imageWidgetsList.removeAt(currentCarousselSliderIndex),
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Util.logInfo("image deleted $currentCarousselSliderIndex"),
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currentCarousselSliderIndex = 0,
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setState(() {})
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}, child: const Text('Ja')),
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TextButton(onPressed: () => {Navigator.of(context).pop()}, child: const Text('Nein')),
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]);
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},
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child: Image.memory(resizedImageData),
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)
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));
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imageWidgetsListNotifier.value = imageWidgetsList;
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setState(() {});
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}
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}
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} catch (ex) {
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Util.logException(ex.toString());
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}
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}
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return SizedBox(
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key: GlobalKey(),
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height: 545,
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width: MediaQuery.of(context).size.width * 0.8,
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child: Container(
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height: 100,
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(10),
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color: Colors.white,
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border: Border.all(
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color: Colors.grey,
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width: 0.5,
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),
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),
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child: Padding(
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padding: const EdgeInsets.all(35.0),
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child: Column(
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children: [
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const Text('Aufgenommene Fotos'),
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const SizedBox(height: 20),
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Container(
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(10),
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color: Colors.white,
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border: Border.all(
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color: Colors.grey,
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width: 0.5,
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),
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),
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height: 300,
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child: ValueListenableBuilder<List<Widget>>(
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valueListenable: imageWidgetsListNotifier,
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builder: (context, value, child) {
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return CarouselSlider(
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options: CarouselOptions(
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disableCenter: false,
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enableInfiniteScroll: false,
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onPageChanged: (index, reason) {
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currentCarousselSliderIndex = index;
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},
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),
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items: imageWidgetsList.toList());
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},
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),
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),
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const SizedBox(height: 20),
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Visibility(
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visible: imageDataList.length < (taskInfo.task?.max ?? 999),
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child: getDefaultButton('Hinzufügen', buttonHeight: 50, () => {capturePhoto()})),
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const SizedBox(height: 12),
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getDefaultButton(
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'Übernehmen',
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buttonHeight: 50,
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() => {
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if (imageDataList.length >= (taskInfo.task?.min ?? 0) && imageDataList.length <= (taskInfo.task?.max ?? 999))
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{Navigator.of(context).pop(), onFinished(imageDataList)}
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else
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{showAlertDialog('Fehler', 'Es müssen mindestens ${taskInfo.task?.min ?? 0} Foto(s) aufgenommen werden')}
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})
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],
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),
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),
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));
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})));
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});
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}
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