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 { 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: [ SliverAppBar( floating: true, snap: false, pinned: false, expandedHeight: 50, title: const Text('Notes, MarkDown Supported'), ), SliverToBoxAdapter( child: Column( crossAxisAlignment: CrossAxisAlignment.stretch, children: [ Container( margin: EdgeInsets.symmetric( horizontal: 10.0, ), child: MarkdownBody( data: widget.notes, ), ), Row( children: [ 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 _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: [ 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(); }), ), ), ], ), ); }); } } }), ), ), ], ), ); }); } }), ), ), ], ), ], ), ), ], ), ); } }