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import 'dart:io';
import 'dart:convert';
import 'package:flutter/material.dart';
import 'package:jovial_svg/jovial_svg.dart';
import 'package:flutter_homescreen/layout_size_helper.dart';
import 'package:flutter_homescreen/generated/applauncher.pb.dart';
// The Applications page.
class AppsPage extends StatefulWidget {
final Future<List<AppInfo>> Function() getApps;
final Function(String id) startApp;
const AppsPage({Key? key, required this.getApps, required this.startApp})
: super(key: key);
@override
_AppsPageState createState() => _AppsPageState();
}
class _AppsPageState extends State<AppsPage> {
List<AppInfo> apps = [];
@override
initState() {
widget.getApps().then((val) => setState(() {
apps = val;
}));
super.initState();
}
@override
Widget build(BuildContext context) {
var sizeHelper = LayoutSizeHelper(context);
return Container(
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topRight,
end: Alignment.bottomLeft,
colors: [Colors.blueGrey.shade800, Colors.grey.shade900])),
constraints: BoxConstraints.expand(),
alignment: Alignment.center,
child: Column(children: [
SizedBox(height: 160.0),
GridView.builder(
scrollDirection: Axis.vertical,
shrinkWrap: true,
itemCount: apps.length,
gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: 3),
itemBuilder: (context, index) {
return GridTile(
child: Container(
alignment: Alignment.center,
child: _AppsPageEntry(
id: apps[index].id,
label: apps[index].name,
iconPath: apps[index].iconPath,
appSelected: widget.startApp,
)));
})
]),
);
}
}
// Each one of the items on the Home page.
class _AppsPageEntry extends StatefulWidget {
final String id;
final String label;
final String iconPath;
final void Function(String id) appSelected;
const _AppsPageEntry(
{Key? key,
required this.id,
required this.label,
required this.iconPath,
required this.appSelected})
: super(key: key);
@override
_AppsPageEntryState createState() => _AppsPageEntryState();
}
class _AppsPageEntryState extends State<_AppsPageEntry> {
late ScalableImage svgIcon;
bool svgIconLoaded = false;
final iconColor = const Color(0xff4ee6f5);
@override
void initState() {
if (widget.iconPath.endsWith(".svg")) {
readSvgIcon().then((val) => setState(() {
svgIconLoaded = val;
}));
}
super.initState();
}
Future<bool> readSvgIcon() async {
if (widget.iconPath.endsWith(".svg")) {
var iconFile = File(widget.iconPath);
if (await iconFile.exists()) {
svgIcon = await ScalableImage.fromSvgStream(
iconFile.openRead().transform(utf8.decoder));
return true;
}
}
return false;
}
Widget buildIcon() {
if (svgIconLoaded) {
return GestureDetector(
onTap: () {
widget.appSelected(widget.id);
},
child: SizedBox.expand(child: ScalableImageWidget(si: svgIcon)));
} else {
return OutlinedButton(
style: ElevatedButton.styleFrom(
shape: CircleBorder(),
padding: EdgeInsets.all(8),
side: BorderSide(width: 4, color: iconColor),
),
onPressed: () {
widget.appSelected(widget.id);
},
child: Icon(Icons.question_mark, color: iconColor, size: 160.0));
}
}
@override
Widget build(BuildContext context) {
return Padding(
padding: const EdgeInsets.symmetric(vertical: 32.0),
child: Column(
children: [
Expanded(child: buildIcon()),
Padding(
padding: EdgeInsets.all(4),
child: Text(
widget.label,
style: DefaultTextStyle.of(context).style.copyWith(
fontSize: 28,
color: iconColor,
),
),
),
],
));
}
}
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