add structure

2020-05-29 07:45:27 +06:30
parent 4c851d9971
commit bad27ba5c4
272 changed files with 36065 additions and 174 deletions
--- a/lib/widget/multi_img_file.dart
+++ b/lib/widget/multi_img_file.dart
@@ -0,0 +1,200 @@
+import 'dart:io';
+
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:font_awesome_flutter/font_awesome_flutter.dart';
+import 'package:image_picker/image_picker.dart';
+import 'package:fcs/widget/multi_img_controller.dart';
+import 'package:fcs/widget/show_img.dart';
+
+typedef OnFile = void Function(File);
+
+class MultiImageFile extends StatefulWidget {
+  final String title;
+  final bool enabled;
+  final ImageSource imageSource;
+  final MultiImgController controller;
+
+  const MultiImageFile(
+      {Key key,
+      this.title,
+      this.enabled = true,
+      this.controller,
+      this.imageSource = ImageSource.gallery})
+      : super(key: key);
+  @override
+  _MultiImageFileState createState() => _MultiImageFileState();
+}
+
+class _MultiImageFileState extends State<MultiImageFile> {
+  List<FileContainer> fileContainers = [];
+  @override
+  void initState() {
+    super.initState();
+    fileContainers = widget.controller.fileContainers;
+    widget.controller.onChange(() {
+      setState(() {
+        this.fileContainers = widget.controller.fileContainers;
+      });
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return new Column(
+      children: new List.generate(
+          widget.enabled ? fileContainers.length : fileContainers.length - 1,
+          (i) => getFile(fileContainers[i], i)).toList(),
+    );
+
+    // return Container(
+    //   height: 30,
+    //   width: 100,
+    //   child: ListView.builder(
+    //     itemCount: fileContainers.length,
+    //     itemBuilder: (context, i) {
+    //       return getFile(fileContainers[i]);
+    //     },
+    //   ),
+    // );
+  }
+
+  _fileAdded(FileContainer fileContainer, File selectedFile) {
+    fileContainer.file = selectedFile;
+    setState(() {
+      widget.controller.addFile = fileContainer;
+    });
+  }
+
+  _fileRemove(FileContainer fileContainer) {
+    setState(() {
+      widget.controller.removeFile = fileContainer;
+    });
+  }
+
+  Widget getFile(FileContainer fileContainer, int index) {
+    return Container(
+      height: 40,
+      padding: EdgeInsets.only(top: 5, bottom: 5),
+      child: fileContainer.file == null && fileContainer.url == null
+          ? IconButton(
+              padding: const EdgeInsets.all(3.0),
+              icon: Icon(Icons.attach_file),
+              onPressed: () async {
+                if (!widget.enabled) return;
+                bool camera = false, gallery = false;
+                await _dialog(
+                    context, () => camera = true, () => gallery = true);
+                if (camera || gallery) {
+                  var selectedFile = await ImagePicker.pickImage(
+                      source: camera ? ImageSource.camera : ImageSource.gallery,
+                      imageQuality: 80,
+                      maxWidth: 1000);
+                  if (selectedFile != null) {
+                    _fileAdded(fileContainer, selectedFile);
+                  }
+                }
+              },
+            )
+          : Padding(
+              padding: const EdgeInsets.only(left: 3.0),
+              child: InkWell(
+                onTap: () => {
+                  Navigator.push(
+                    context,
+                    MaterialPageRoute(
+                        builder: (context) => ShowImage(
+                            imageFile: fileContainer.file,
+                            url: fileContainer.file == null
+                                ? fileContainer.url
+                                : null,
+                            fileName: widget.title)),
+                  )
+                },
+                child: Chip(
+                  avatar: Icon(Icons.image),
+                  onDeleted: !widget.enabled
+                      ? null
+                      : () {
+                          _fileRemove(fileContainer);
+                        },
+                  deleteIcon: Icon(
+                    Icons.close,
+                  ),
+                  label: Text(widget.title + " - ${index + 1}"),
+                ),
+              ),
+            ),
+    );
+  }
+
+  Future<void> _dialog(BuildContext context, cameraPress(), photoPress()) {
+    return showDialog<void>(
+      context: context,
+      builder: (BuildContext context) {
+        return AlertDialog(
+          content: Container(
+            child: Padding(
+              padding: const EdgeInsets.all(8.0),
+              child: Row(
+                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+                children: <Widget>[
+                  Column(
+                    mainAxisSize: MainAxisSize.min,
+                    children: <Widget>[
+                      IconButton(
+                          icon: Icon(
+                            FontAwesomeIcons.camera,
+                            size: 30,
+                          ),
+                          onPressed: () {
+                            Navigator.pop(context);
+                            cameraPress();
+                          }),
+                      Text("Camera")
+                    ],
+                  ),
+                  Column(
+                    mainAxisSize: MainAxisSize.min,
+                    children: <Widget>[
+                      IconButton(
+                          icon: Icon(Icons.photo_library, size: 30),
+                          onPressed: () {
+                            Navigator.pop(context);
+                            photoPress();
+                          }),
+                      Text("Gallery")
+                    ],
+                  ),
+                ],
+              ),
+            ),
+          ),
+        );
+      },
+    );
+  }
+}
+
+class FileContainer {
+  String url;
+  File file;
+  FileContainer({this.url, this.file});
+
+  @override
+  bool operator ==(other) {
+    if (identical(this, other)) {
+      return true;
+    }
+    return (other.file == this.file &&
+            (other.file != null || this.file != null)) ||
+        (other.url == this.url && (other.url != null || this.url != null));
+  }
+
+  @override
+  int get hashCode {
+    int result = 17;
+    result = 37 * result + file.hashCode;
+    return result;
+  }
+}