image_pickers 2.0.5+2

image_pickers Support local picture or video multiple selection, support to save network pictures or vidoe to albums, support preview video or picture

example/lib/main.dart

import 'dart:io';
import 'dart:typed_data';

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'dart:async';

import 'package:flutter/services.dart';
import 'package:image_pickers/image_pickers.dart';
import 'dart:ui' as ui;

void main() => runApp(MyApp());

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  GlobalKey? globalKey;

  @override
  void initState() {
    super.initState();
    globalKey = GlobalKey();
  }

  List<Media> _listImagePaths = [];
  List<Media> _listVideoPaths = [];
  List<Media> _listImageVideoPaths = [];
  String? dataImagePath = "";

  @override
  Widget build(BuildContext context) {
    return RepaintBoundary(
      key: globalKey,
      child: MaterialApp(
        theme: ThemeData(
          primaryColor: Colors.white,
        ),
        home: Scaffold(
          appBar: AppBar(
            title: const Text('多图选择'),
          ),
          body: SingleChildScrollView(
            physics: BouncingScrollPhysics(),
            child: Column(
              children: <Widget>[
                GridView.builder(
                    physics: NeverScrollableScrollPhysics(),
                    itemCount: _listImagePaths.length,
                    shrinkWrap: true,
                    gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
                        crossAxisCount: 3,
                        mainAxisSpacing: 20.0,
                        crossAxisSpacing: 10.0,
                        childAspectRatio: 1.0),
                    itemBuilder: (BuildContext context, int index) {
                      return GestureDetector(
                        onTap: () {
//                        ImagePickers.previewImage(_listImagePaths[index].path);

//                      List<String> paths = [];
//                        _listImagePaths.forEach((media){
//                          paths.add(media.path);
//                        });
//
//                        ImagePickers.previewImages(paths,index);

                          ImagePickers.previewImagesByMedia(
                              _listImagePaths, index);
                        },
                        child: Image.file(
                          File(
                            _listImagePaths[index].path!,
                          ),
                          fit: BoxFit.cover,
                        ),
                      );
                    }),
                ElevatedButton(
                  onPressed: () async {
                    _listImagePaths = await ImagePickers.pickerPaths(
                      galleryMode: GalleryMode.image,
                      showGif: true,
                      selectCount: 5,
                      showCamera: true,
                      cropConfig:
                          CropConfig(enableCrop: true),
                      compressSize: 500,
                      uiConfig: UIConfig(
                        uiThemeColor: Color(0xffff0000),
                      ),
                    );
                    print(_listImagePaths);
                    if (_listImagePaths.length > 0) {
                      _listImagePaths.forEach((media) {
                        print(media);
                      });
                    }
                    setState(() {});
                  },
                  child: Text("选择图片"),
                ),
                ElevatedButton(
                  onPressed: () async {
                    ImagePickers.openCamera(
                            cropConfig: CropConfig(
                                enableCrop: true, width: 2, height: 3))
                        .then((Media? media) {
                      _listImagePaths.clear();
                      if (media != null) {
                        _listImagePaths.add(media);
                        print(media.toString());
                      }
                      setState(() {});
                    });
                  },
                  child: Text("拍照"),
                ),
                ElevatedButton(
                  onPressed: () {
                    ImagePickers.openCamera(
                            cameraMimeType: CameraMimeType.video,
                            videoRecordMinSecond: 3,
                            videoRecordMaxSecond: 10)
                        .then((media) {
                      _listVideoPaths.clear();
                      if (media != null) {
                        print(media.toString());
                        _listVideoPaths.add(media);
                      }
                      setState(() {});
                    });
                  },
                  child: Text("拍视频"),
                ),
                GridView.builder(
                    physics: NeverScrollableScrollPhysics(),
                    itemCount: _listVideoPaths.length,
                    shrinkWrap: true,
                    gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
                        crossAxisCount: 3,
                        mainAxisSpacing: 20.0,
                        crossAxisSpacing: 10.0,
                        childAspectRatio: 1.0),
                    itemBuilder: (BuildContext context, int index) {
                      return GestureDetector(
                        onTap: () {
                          ImagePickers.previewVideo(
                            _listVideoPaths[index].path!,
                          );
                        },
                        child: Image.file(
                          File(
                            _listVideoPaths[index].thumbPath!,
                          ),
                          fit: BoxFit.cover,
                        ),
                      );
                    }),
                ElevatedButton(
                  onPressed: () async {
                    _listVideoPaths = await ImagePickers.pickerPaths(
                      galleryMode: GalleryMode.video,
                      videoRecordMinSecond: 3,
                      videoRecordMaxSecond: 10,
                      // videoSelectMaxSecond: 300,
                      videoSelectMinSecond: 5,
                      selectCount: 2,
                      showCamera: true,
                    );
                    setState(() {});
                    print(_listVideoPaths);
                  },
                  child: Text("选择视频"),
                ),
                GridView.builder(
                    physics: NeverScrollableScrollPhysics(),
                    itemCount: _listImageVideoPaths.length,
                    shrinkWrap: true,
                    gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
                        crossAxisCount: 3,
                        mainAxisSpacing: 20.0,
                        crossAxisSpacing: 10.0,
                        childAspectRatio: 1.0),
                    itemBuilder: (BuildContext context, int index) {
                      Media media = _listImageVideoPaths[index];
                      return GestureDetector(
                        onTap: () {
                       ImagePickers.previewImagesByMedia(
                              _listImageVideoPaths, index);
                          // if (media.galleryMode == GalleryMode.image) {
                          //   ImagePickers.previewImage(media.path!);
                          // } else {
                          //   ImagePickers.previewVideo(
                          //     media.path!,
                          //   );
                          // }
                        },
                        child: Image.file(
                          File(
                            _listImageVideoPaths[index].thumbPath!,
                          ),
                          fit: BoxFit.cover,
                        ),
                      );
                    }),
                ElevatedButton(
                  onPressed: () async {
                    _listImageVideoPaths = await ImagePickers.pickerPaths(
                      galleryMode: GalleryMode.all,
                      selectCount: 8,
                      showCamera: true,
                      videoRecordMinSecond: 3,
                      videoRecordMaxSecond: 10,
                      videoSelectMaxSecond: 300,
                      videoSelectMinSecond: 5,
                    );

                    setState(() {});
                    print(_listImageVideoPaths);
                  },
                  child: Text("选择图片和视频"),
                ),
                InkWell(
                    onTap: () {
                      ImagePickers.previewImage(
                          "http://i1.sinaimg.cn/ent/d/2008-06-04/U105P28T3D2048907F326DT20080604225106.jpg");
                    },
                    child: Image.network(
                      "http://i1.sinaimg.cn/ent/d/2008-06-04/U105P28T3D2048907F326DT20080604225106.jpg",
                      fit: BoxFit.cover,
                      width: 100,
                      height: 100,
                    )),
                ElevatedButton(
                  onPressed: () {
                    Future<String?> future = ImagePickers.saveImageToGallery(
                        "http://i1.sinaimg.cn/ent/d/2008-06-04/U105P28T3D2048907F326DT20080604225106.jpg");
                    future.then((path) {
                      print("保存图片路径：" + path!);
                    });
                  },
                  child: Text("保存网络图片"),
                ),
                dataImagePath == ""
                    ? Container()
                    : GestureDetector(
                        onTap: () {
                          ImagePickers.previewImage(dataImagePath!);
                        },
                        child: Image.file(
                          File(dataImagePath!),
                          fit: BoxFit.cover,
                          width: 100,
                          height: 100,
                        )),
                ElevatedButton(
                  onPressed: () async {
                    RenderRepaintBoundary boundary = globalKey!.currentContext!
                        .findRenderObject() as RenderRepaintBoundary;
                    ui.Image image = await boundary.toImage(pixelRatio: 3);
                    ByteData byteData = await image.toByteData(
                        format: ui.ImageByteFormat.png) as ByteData;
                    Uint8List data = byteData.buffer.asUint8List();

                    dataImagePath =
                        await ImagePickers.saveByteDataImageToGallery(
                      data,
                    );

                    print("保存截屏图片 = " + dataImagePath!);
                    setState(() {});
                  },
                  child: Text("保存截屏图片"),
                ),
                ElevatedButton(
                  onPressed: () {
                    Future<String?> future = ImagePickers.saveVideoToGallery(
                        "http://vd4.bdstatic.com/mda-jbmn50510sid5yx5/sc/mda-jbmn50510sid5yx5.mp4");
                    future.then((path) {
                      print("视频保存成功" + path!);
                    });
                  },
                  child: Text("保存视频"),
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }

}