Flutter : Release version create a problem - flutter

Question

Where is the problem in my code ?
My app works fine in debug mode. But when I go to release mode, Some widgets don't show which placed in stack.
I took internet permission also. <uses-permission android:name="android.permission.INTERNET"/>
Here is my Debug version output that I want.
And here is my release version output
Here is my code -
import 'package:boimarket/model/model.dart';
import 'package:boimarket/screen/pdfscreen.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
class BookDescription extends StatefulWidget {
BookDescription({Key key, #required this.storyBooksValue}) : super(key: key);
final storyBooksValue;
#override
_BookDescriptionState createState() => _BookDescriptionState();
}
class _BookDescriptionState extends State<BookDescription> {
#override
void initState() {
SystemChrome.setPreferredOrientations([
DeviceOrientation.portraitDown,
DeviceOrientation.portraitUp,
]);
super.initState();
}
#override
void dispose() {
SystemChrome.setPreferredOrientations([
DeviceOrientation.portraitDown,
DeviceOrientation.portraitUp,
]);
}
#override
Widget build(BuildContext context) {
var _boxHeight = MediaQuery.of(context).size.height;
var _boxWidth = MediaQuery.of(context).size.width;
final Color _whiteCream = Color.fromRGBO(250, 245, 228, .8);
final Color _darkBlue = Color.fromRGBO(0, 68, 69, 1);
final Color _lightBlue = Color.fromRGBO(44, 120, 108, 1);
return Scaffold(
appBar: null,
body: Stack(
children: <Widget>[
Container(
color: _lightBlue,
child: Stack(
children: <Widget>[
Card(
elevation: 10,
child: Container(
height: _boxHeight,
width: _boxWidth,
child: FadeInImage.assetNetwork(
fadeOutCurve: Curves.easeInCubic,
placeholder: 'assets/images/cover.jpg',
image: widget.storyBooksValue.imgUrl == null
? "https://firebasestorage.googleapis.com/v0/b/boi-market.appspot.com/o/images%2Fcover.jpg?alt=media&token=f8070b25-533c-454b-9d2e-80702d72371e"
: widget.storyBooksValue.imgUrl,
height: _boxHeight,
width: _boxWidth,
fit: BoxFit.cover,
),
),
),
Container(
height: _boxHeight,
width: _boxWidth,
color: Colors.black54,
),
Align(
alignment: Alignment.bottomCenter,
child: SingleChildScrollView(
child: Column(
children: [
Container(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Container(
padding: EdgeInsets.only(left: 20, top: 60.0),
child: Expanded(
child: Text(
"এই লেখকের আরও কিছু বই",
style: TextStyle(
fontSize: 30,
fontWeight: FontWeight.bold,
color: Colors.white),
overflow: TextOverflow.clip,
),
),
),
Container(
padding: EdgeInsets.only(top: 10, bottom: 10),
height: 250.0,
child: FutureBuilder(
future: fetchBooks(),
builder: (context,
AsyncSnapshot<List<Book>> snapshot) {
if (!snapshot.hasData) {
return Column(
mainAxisAlignment:
MainAxisAlignment.center,
crossAxisAlignment:
CrossAxisAlignment.center,
children: <Widget>[
CircularProgressIndicator(
backgroundColor: _whiteCream,
),
Text("Loading"),
],
);
} else {
var writterBooks = snapshot.data
.where((b) =>
b.author ==
widget.storyBooksValue.author)
.toList();
print(writterBooks.length);
return ListView.builder(
scrollDirection: Axis.horizontal,
itemCount: writterBooks.length,
itemBuilder: (context, index) {
return GestureDetector(
onTap: () {
Route route = MaterialPageRoute(
builder: (context) =>
BookDescription(
storyBooksValue:
writterBooks[
index]),
);
Navigator.push(context, route);
},
child: Container(
padding: EdgeInsets.all(10),
child: Column(
children: [
Container(
width: 100,
height: 140.0,
child: ClipRRect(
borderRadius:
BorderRadius
.circular(5.0),
child: FadeInImage
.assetNetwork(
fadeOutCurve:
Curves.linear,
placeholder:
'assets/images/cover.jpg',
image: writterBooks[
index]
.imgUrl ==
null
? "https://firebasestorage.googleapis.com/v0/b/boi-market.appspot.com/o/images%2Fcover.jpg?alt=media&token=f8070b25-533c-454b-9d2e-80702d72371e"
: writterBooks[
index]
.imgUrl,
width: 90,
height: 120.0,
fit: BoxFit.cover,
),
),
),
Flexible(
child: Container(
width: 90,
child: Text(
"${writterBooks[index].name}",
style: TextStyle(
color:
Colors.white,
fontWeight:
FontWeight
.bold,
fontSize: 12.0),
overflow:
TextOverflow.clip,
),
),
),
],
),
),
);
});
}
},
),
),
],
),
),
Container(
width: _boxWidth,
decoration: BoxDecoration(
borderRadius: BorderRadius.only(
topLeft: Radius.circular(40.0),
topRight: Radius.circular(40.0)),
color: _whiteCream,
boxShadow: [
BoxShadow(
color: Colors.black45,
blurRadius: 5.0,
spreadRadius: 1.0)
],
),
child: Padding(
padding: EdgeInsets.all(20),
child: Column(
children: <Widget>[
SizedBox(
height: 30.0,
),
Row(
mainAxisAlignment:
MainAxisAlignment.spaceBetween,
children: [
Expanded(
child: Container(
child: Column(
crossAxisAlignment:
CrossAxisAlignment.start,
children: [
RichText(
overflow: TextOverflow.clip,
text: TextSpan(
style: TextStyle(
color: Colors.black),
children: [
TextSpan(
text: "বইয়ের নামঃ",
style: TextStyle(
fontWeight:
FontWeight.bold,
fontSize: 16.0)),
TextSpan(
text:
" ${widget.storyBooksValue.name}")
]),
),
SizedBox(
height: 5.0,
),
RichText(
overflow: TextOverflow.clip,
text: TextSpan(
style: TextStyle(
color: Colors.black),
children: [
TextSpan(
text: "লেখকঃ",
style: TextStyle(
fontWeight:
FontWeight.bold,
fontSize: 16.0)),
TextSpan(
text:
" ${widget.storyBooksValue.author}")
]),
),
SizedBox(
height: 5.0,
),
RichText(
overflow: TextOverflow.clip,
text: TextSpan(
style: TextStyle(
color: Colors.black),
children: [
TextSpan(
text: "বইয়ের ধরণঃ",
style: TextStyle(
fontWeight:
FontWeight.bold,
fontSize: 16.0)),
TextSpan(
text:
" ${widget.storyBooksValue.genreClass}")
]),
),
],
),
),
),
Card(
elevation: 5.0,
child: FadeInImage.assetNetwork(
fadeOutCurve: Curves.easeInCubic,
placeholder: 'assets/images/cover.jpg',
image: widget.storyBooksValue.imgUrl ==
null
? "https://firebasestorage.googleapis.com/v0/b/boi-market.appspot.com/o/images%2Fcover.jpg?alt=media&token=f8070b25-533c-454b-9d2e-80702d72371e"
: widget.storyBooksValue.imgUrl,
height: 100.0,
fit: BoxFit.cover,
),
),
],
),
Divider(),
widget.storyBooksValue.description == null
? Center(
child: Text(
'দুঃখিত, ${widget.storyBooksValue.name} বইটির বর্ণনা পাওয়া যায়নি'))
: SelectableText(
'${widget.storyBooksValue.description} \n',
),
Text(
'আমরা বইটির একটি ebook খুজে পেয়েছি । \n\n আপনি বইটি পড়তে চাইলে, " Read Now " বাটনে ক্লিক করুন । \n'),
SizedBox(
height: 75.0,
)
],
),
),
),
],
),
),
)
],
),
),
Padding(
padding: EdgeInsets.only(left: 10.0, top: 20.0),
child: IconButton(
icon: Icon(Icons.arrow_back),
color: _whiteCream,
onPressed: () {
Navigator.pop(context, false);
}),
),
Positioned(
bottom: 60.0,
right: 20.0,
child: RaisedButton(
onPressed: () {
print("clicked");
Navigator.push(
context,
MaterialPageRoute(
builder: (context) =>
PdfScreen(singleBookData: widget.storyBooksValue)),
);
},
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(30)),
color: _darkBlue,
child: Text(
"Read now",
style: TextStyle(color: _whiteCream),
),
),
),
],
),
);
}
}
How can I fix this problem? please someone help me.

Answer 1

I solve my problem by remove container of text. Just use text() without container()
Expanded(
child: Text("এই লেখকের আরও কিছু বই",
style: TextStyle(
fontSize: 30,
fontWeight: FontWeight.bold,
color: Colors.white),
overflow: TextOverflow.clip,
),
)

Answer 2

For creating a release version of APP you can use android studio,
I am currently working on a flutter project when I create a release version of the app then the app only shows a white blank screen and nothing else, I tried everything to solve this but nothing seems to work, after searching for 2 days I come to know that using android studio we can also create a release version of the app, release version of the app using android studio solved my problem.
My personal choice is the android studio for flutter projects.
Here is the link to the question which I used to create the release version.
How to build signed apk from Android Studio for Flutter