libre_gps_parser/lib/render_notes.dart

297 lines
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Dart
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2019-06-27 17:29:40 -07:00
import 'package:permission_handler/permission_handler.dart';
import 'package:flutter_markdown/flutter_markdown.dart';
import 'package:path_provider/path_provider.dart';
import 'package:flutter/material.dart';
import 'global_helper_functions.dart';
import 'dart:io';
class RenderNotes extends StatefulWidget {
final String notes;
RenderNotes({
Key key,
this.notes,
}) : super(key: key);
@override
_RenderNotesState createState() => _RenderNotesState();
}
class _RenderNotesState extends State<RenderNotes> {
final double textHeight = 1.5;
final _textEditingController = TextEditingController();
String _exportFileNameString = '';
String fileName = '';
@override
void initState() {
super.initState();
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: ivory,
body: CustomScrollView(
slivers: <Widget>[
SliverAppBar(
floating: true,
snap: false,
pinned: false,
expandedHeight: 50,
title: const Text('Notes, MarkDown Supported'),
),
SliverToBoxAdapter(
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget> [
Container(
margin: EdgeInsets.symmetric(
horizontal: 10.0,
),
child: MarkdownBody(
data: widget.notes,
),
),
Row(
children: <Widget> [
Expanded(
child: Container(),
),
Container(
margin: EdgeInsets.all(20.0),
child: ButtonTheme(
height: 55,
padding: EdgeInsets.only(
top: 5,
right: 12,
bottom: 12,
left: 10
),
child: RaisedButton(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.all(Radius.circular(6.0)),
),
color: peacockBlue,
child: Text(
'Export',
style: TextStyle(
height: textHeight,
color: Colors.white,
fontSize: 24,
),
),
onPressed: () async{
Map<PermissionGroup, PermissionStatus> _storagePermissions;
PermissionStatus _storagePermission = await PermissionHandler().checkPermissionStatus(PermissionGroup.storage);
if (_storagePermission == PermissionStatus.denied) {
_storagePermissions = await PermissionHandler().requestPermissions([PermissionGroup.storage]);
}
if ((_storagePermission == PermissionStatus.granted) || (_storagePermissions.toString() == PermissionStatus.granted.toString())) {
Directory sdcard = await getExternalStorageDirectory();
showDialog(
context: context,
builder: (BuildContext context) {
return AlertDialog(
backgroundColor: ivory,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.all(Radius.circular(6.0)),
),
title: Text(
'File Name To Save As?',
textAlign: TextAlign.center,
style: TextStyle(
color: candyApple,
),
),
content: Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
TextField(
controller: _textEditingController,
keyboardType: TextInputType.multiline,
maxLines: null,
decoration: InputDecoration(
hintText: 'i.e. timbuktu.md',
),
onChanged: (text) {
_exportFileNameString = text;
},
),
Container(
margin: EdgeInsets.only(
top: 40,
bottom: 10,
),
child: ButtonTheme(
height: 55,
padding: EdgeInsets.only(
top: 5,
right: 12,
bottom: 12,
left: 10
),
child: RaisedButton(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.all(Radius.circular(6.0)),
),
color: peacockBlue,
child: Text(
'Export',
style: TextStyle(
height: textHeight,
color: Colors.white,
fontSize: 24,
),
),
onPressed: () async{
if (this._exportFileNameString.length > 0) {
String _fileName = '${sdcard.path}/${this._exportFileNameString}';
File _file = File(_fileName);
File _result = await _file.writeAsString(widget.notes);
Navigator.of(context).pop();
if (_result == null) {
setState(() {
this.fileName = _fileName;
});
showDialog(
context: context,
builder: (BuildContext context) {
return AlertDialog(
backgroundColor: ivory,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.all(Radius.circular(6.0)),
),
title: Text(
'Writing To\n\'$fileName\'\n(sdcard) Failed!',
textAlign: TextAlign.center,
style: TextStyle(
color: candyApple,
),
),
content: Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Container(
margin: EdgeInsets.only(
top: 40,
bottom: 10,
),
child: ButtonTheme(
height: 55,
padding: EdgeInsets.only(
top: 5,
right: 12,
bottom: 12,
left: 10
),
child: RaisedButton(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.all(Radius.circular(6.0)),
),
color: peacockBlue,
child: Text(
'OK',
style: TextStyle(
height: textHeight,
color: Colors.white,
fontSize: 24,
),
),
onPressed: () async{
Navigator.of(context).pop();
}
),
),
),
],
),
);
}
);
} else {
setState(() {
this.fileName = _fileName;
});
showDialog(
context: context,
builder: (BuildContext context) {
return AlertDialog(
backgroundColor: ivory,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.all(Radius.circular(6.0)),
),
title: Text(
'Writing To\n\'$fileName\'\n(sdcard) Succeeded!',
textAlign: TextAlign.center,
style: TextStyle(
color: candyApple,
),
),
content: Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Container(
margin: EdgeInsets.only(
top: 40,
bottom: 10,
),
child: ButtonTheme(
height: 55,
padding: EdgeInsets.only(
top: 5,
right: 12,
bottom: 12,
left: 10
),
child: RaisedButton(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.all(Radius.circular(6.0)),
),
color: peacockBlue,
child: Text(
'OK',
style: TextStyle(
height: textHeight,
color: Colors.white,
fontSize: 24,
),
),
onPressed: () async{
Navigator.of(context).pop();
}
),
),
),
],
),
);
}
);
}
}
}
),
),
),
],
),
);
}
);
}
}
),
),
),
],
),
],
),
),
],
),
);
}
}