Свой собственный стор v0.0.1

 1void download(String url, {Function? success, Function? error}) async {
 2    var name = basename(url);
 3    var request = http.Request('GET', Uri.parse(url));
 4    var response = client.send(request);
 5    String dir = (await getApplicationDocumentsDirectory()).path;
 6
 7    List<List<int>> chunks = [];
 8    int downloaded = 0;
 9
10    response.asStream().listen((http.StreamedResponse r) {
11        r.stream.listen((List<int> chunk) {
12                print('downloaded: ${downloaded * Megabyte}');
13
14                chunks.add(chunk);
15                downloaded += chunk.length;
16            }, onDone: () async {
17                print('downloaded: ${downloaded * Megabyte}');
18
19                var path = '$dir/$name';
20
21                File file = new File(path);
22                final Uint8List bytes = Uint8List(downloaded);
23                int offset = 0;
24                for (List<int> chunk in chunks) {
25                    bytes.setRange(offset, offset + chunk.length, chunk);
26                    offset += chunk.length;
27                }
28
29                await file.writeAsBytes(bytes);
30
31                if (success != null) {
32                    success(path);
33                }
34
35                return;
36            }, onError: (err) async {
37                if (error != null) {
38                    error();
39                }
40        });
41    });
42}

 1import 'package:pigeon/pigeon.dart';
 2
 3
 4class InstallRequest {
 5  String? file;
 6}
 7
 8class InstallResponse {
 9  bool? status;
10}
11
12@HostApi()
13abstract class InstallApk {
14  @async
15  InstallResponse install(InstallRequest request);
16}

1flutter pub run pigeon \
2  --input pigeons/install/apk.dart \
3  --dart_out lib/pigeons/install/apk.dart \
4  --java_out ./android/app/src/main/java/ru/kovardin/getapp/pigeons/install/Apk.java \
5  --java_package "ru.kovardin.getapp.pigeons.install"

 1package ru.kovardin.getapp.install
 2
 3import android.app.Activity
 4import android.content.Intent
 5import android.content.pm.PackageManager
 6import android.content.pm.ResolveInfo
 7import android.net.Uri
 8import android.os.Build
 9import android.util.Log
10import androidx.core.content.FileProvider
11import ru.kovardin.getapp.pigeons.install.Apk
12import java.io.File
13
14
15open class Apk(val context: Activity): Apk.InstallApk {
16    override fun install(request: Apk.InstallRequest, result: Apk.Result<Apk.InstallResponse>?) {
17        Log.d("APK", "install apk ${request.file}")
18
19        try {
20            val file = File(request.file ?: "")
21            val intent = Intent(Intent.ACTION_VIEW)
22            val authority =  context.getApplicationContext().getPackageName().toString() + ".provider"
23            val type = "application/vnd.android.package-archive"
24
25            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
26                val apk: Uri = FileProvider.getUriForFile(
27                        context,
28                        authority,
29                        file
30                )
31
32                intent.setDataAndType(apk, type)
33                val infos: List<ResolveInfo> = context.getPackageManager().queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY)
34                for (info in infos) {
35                    context.grantUriPermission(authority, apk, Intent.FLAG_GRANT_WRITE_URI_PERMISSION or Intent.FLAG_GRANT_READ_URI_PERMISSION)
36                }
37                intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_GRANT_WRITE_URI_PERMISSION or Intent.FLAG_GRANT_READ_URI_PERMISSION)
38                intent.putExtra(Intent.EXTRA_NOT_UNKNOWN_SOURCE, true)
39
40            } else {
41                intent.setAction(Intent.ACTION_VIEW)
42                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_ACTIVITY_NEW_TASK)
43                intent.putExtra(Intent.EXTRA_NOT_UNKNOWN_SOURCE, true)
44                intent.setDataAndType(Uri.fromFile(file), type)
45            }
46            context.startActivity(intent)
47        } catch (e: Exception) {
48            e.printStackTrace()
49        }
50
51        val response = Apk.InstallResponse();
52        response.status = true;
53        result?.success(response)
54    }
55}

1intent.setAction(Intent.ACTION_VIEW)
2intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_ACTIVITY_NEW_TASK)
3intent.putExtra(Intent.EXTRA_NOT_UNKNOWN_SOURCE, true)
4intent.setDataAndType(Uri.fromFile(file), type)

 1<application
 2        android:allowBackup="true"
 3        android:label="@string/app_name">
 4        <provider
 5            android:name="android.support.v4.content.FileProvider"
 6            android:authorities="${applicationId}.authorityStr"
 7            android:exported="false"
 8            android:grantUriPermissions="true">
 9            <meta-data
10                android:name="android.support.FILE_PROVIDER_PATHS"
11                android:resource="@xml/paths"/>
12        </provider>
13</application>

 1<?xml version="1.0" encoding="utf-8"?>
 2<paths xmlns:android="http://schemas.android.com/apk/res/android">
 3    <external-path
 4            name="files_root"
 5            path="Android/data/${applicationId}" />
 6    <external-path
 7            name="external_files"
 8            path="." />
 9    <root-path name="root" path="/data/" />
10</paths>

1final apk = InstallApk();
2final response = await apk.install(InstallRequest(
3    file: apk,
4));

1Permission.storage.request().then((value) {
2    print(value);
3
4    Permission.requestInstallPackages.request().then((value) {
5        print(value);
6    });
7});

 1func (a *Api) Route(r chi.Router) {
 2	r.Route("/v1", func(r chi.Router) {
 3
 4		r.Route("/apps", func(r chi.Router) {
 5			r.Route("/{bundle}", func(r chi.Router) {
 6				r.Get("/", a.apps.One)
 7				r.Get("/download", a.apps.Download)
 8			})
 9			r.Get("/search", a.apps.Search)
10			r.Post("/updates", a.apps.Updates)
11		})
12
13        r.Get("/file/*", a.static.File)
14
15		// ...
16
17	})
18}

 1func (h Static) File(w http.ResponseWriter, r *http.Request) {
 2	headers := http.Header{}
 3
 4	ext := path.Ext(r.URL.Path)
 5	if ext == ".apk" {
 6		headers.Set("Content-Type", "application/vnd.android.package-archive")
 7	}
 8
 9	proxy := httputil.ReverseProxy{
10		Director:  func(r *http.Request) {},
11		Transport: responseHeadersTransport(headers),
12	}
13
14	target := h.config.Scheme + path.Join(h.config.Cloud, strings.Replace(r.URL.Path, "file/", "", 1))
15	req, _ := http.NewRequest("GET", target, nil)
16	proxy.ServeHTTP(w, req)
17}