我正在使用permission_handler包来请求我的应用程序中存储的读取权限，在调试模式下一切都工作正常，当我使用“flutter run --release”运行我的代码时，但是当我将代码导出为apk时，问题就出现了不出现权限对话框。
我不知道我在这里做错了什么，请帮助我！
这是 androidManifest.xml
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.edithautotech.edithdisplayrelease">
<!-- io.flutter.app.FlutterApplication is an android.app.Application that
calls FlutterMain.startInitialization(this); in its onCreate method.
In most cases you can leave this as-is, but you if you want to provide
additional functionality it is fine to subclass or reimplement
FlutterApplication and put your custom class here. -->
<!-- Permissions options for the 'storage' group-->
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="com.android.vending.BILLING" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<application
android:name="io.flutter.app.FlutterApplication"
android:label="Edith Display"
android:icon="@mipmap/ic_launcher">
<activity
android:name=".MainActivity"
android:launchMode="singleTop"
android:theme="@style/LaunchTheme"
android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
android:hardwareAccelerated="true"
android:windowSoftInputMode="adjustResize">
<!-- Specifies an Android theme to apply to this Activity as soon as
the Android process has started. This theme is visible to the user
while the Flutter UI initializes. After that, this theme continues
to determine the Window background behind the Flutter UI. -->
<meta-data
android:name="io.flutter.embedding.android.NormalTheme"
android:resource="@style/NormalTheme"
/>
<!-- Displays an Android View that continues showing the launch screen
Drawable until Flutter paints its first frame, then this splash
screen fades out. A splash screen is useful to avoid any visual
gap between the end of Android's launch screen and the painting of
Flutter's first frame. -->
<meta-data
android:name="io.flutter.embedding.android.SplashScreenDrawable"
android:resource="@drawable/launch_background"
/>
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<!-- Don't delete the meta-data below.
This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
<meta-data
android:name="flutterEmbedding"
android:value="2" />
</application>
</manifest>
这是飞镖代码
import 'package:fluttertoast/fluttertoast.dart';
import 'package:permission_handler/permission_handler.dart';
class HomeScreen extends StatefulWidget {
static const routeName = "/gallery";
@override
_HomeScreenState createState() => _HomeScreenState();
}
class _HomeScreenState extends State<HomeScreen>
with SingleTickerProviderStateMixin {
PermissionStatus _storageStatus = PermissionStatus.restricted;
@override
void initState() {
super.initState();
_initPermission();
}
void _initPermission() async {
final PermissionStatus status = await _permission.request();
setState(() {
_storageStatus = status;
});
}
void _checkPermission({Function handler}) async {
switch (_storageStatus) {
case PermissionStatus.granted:
handler();
break;
case PermissionStatus.denied:
Fluttertoast.showToast(msg: "Storage permission denied");
break;
case PermissionStatus.restricted:
Fluttertoast.showToast(msg: "Storage permission restricted");
break;
case PermissionStatus.permanentlyDenied:
Fluttertoast.showToast(msg: "Storage permission permanently denied");
break;
case PermissionStatus.undetermined:
Fluttertoast.showToast(msg: "Storage permission undermined");
break;
}
}
Void onUploadButtonClick(){
// showing media from device here
}
@override
Widget build(BuildContext context) {
final ThemeData theme = Theme.of(context);
return Scaffold(
appBar: AppBar(
title: Text(
widget.restaurantName,
style: theme.appBarTheme.textTheme.headline1,
),),
body: Container(color: Colors.Green),
floatingActionButton: FloatingActionButton.extended(
onPressed: () {
Fluttertoast.showToast(msg: "Upload Pressed");
_checkPermission(
handler: () =>
onUploadButtonClick(context, user: widget.user),
);
},
label: Text(
'Upload',
style: theme.textTheme.button,
),
icon: Icon(
Icons.cloud_upload,
size: 30,
),
)
);
}
}
