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Fixes for search screen and for new "playlists" screen with search field

This commit is contained in:
kilowatt 2020-11-22 13:17:37 +03:00
parent abbd795a35
commit 79ad6992d9
3 changed files with 87 additions and 53 deletions
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4
android/app/build.gradle
View File

@ -32,7 +32,7 @@ apply plugin: 'com.android.application'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
android {
compileSdkVersion 28
compileSdkVersion 29
lintOptions {
disable 'InvalidPackage'
@ -42,7 +42,7 @@ android {
// TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
applicationId "f.f.freezer"
minSdkVersion 21
targetSdkVersion 28
targetSdkVersion 29
versionCode flutterVersionCode.toInteger()
versionName flutterVersionName
}

92
lib/main.dart
View File

@ -163,11 +163,12 @@ class MainScreen extends StatefulWidget {
_MainScreenState createState() => _MainScreenState();
}
class _MainScreenState extends State<MainScreen> with SingleTickerProviderStateMixin{
class _MainScreenState extends State<MainScreen> with SingleTickerProviderStateMixin, WidgetsBindingObserver {
List<Widget> _screens = [HomeScreen(), SearchScreen(), LibraryScreen()];
int _selected = 0;
StreamSubscription _urlLinkStream;
int _keyPressed = 0;
bool textFieldVisited = false;
@override
void initState() {
@ -184,6 +185,7 @@ class _MainScreenState extends State<MainScreen> with SingleTickerProviderStateM
});
super.initState();
WidgetsBinding.instance.addObserver(this);
}
void _prepareQuickActions() {
@ -226,9 +228,19 @@ class _MainScreenState extends State<MainScreen> with SingleTickerProviderStateM
void dispose() {
if (_urlLinkStream != null)
_urlLinkStream.cancel();
WidgetsBinding.instance.removeObserver(this);
super.dispose();
}
@override
void didChangeAppLifecycleState(AppLifecycleState state) {
if (state == AppLifecycleState.resumed) {
setState(() {
textFieldVisited = false;
});
}
}
void _setupUniLinks() async {
//Listen to URLs
_urlLinkStream = getUriLinksStream().listen((Uri uri) {
@ -242,20 +254,28 @@ class _MainScreenState extends State<MainScreen> with SingleTickerProviderStateM
} catch (e) {}
}
ValueChanged<RawKeyEvent> _handleKey(FocusScopeNode navigatorFocusNode, FocusNode rootFocusNode){
ValueChanged<RawKeyEvent> _handleKey(FocusScopeNode navigationBarFocusNode, FocusNode screenFocusNode){
return (event) {
if (event.runtimeType.toString() == 'RawKeyDownEvent') {
FocusNode primaryFocus = FocusManager.instance.primaryFocus;
// After visiting text field, something goes wrong and KeyDown events are not sent, only KeyUp-s.
// So, set this flag to indicate a transition to other "mode"
if (primaryFocus.context.widget.runtimeType.toString() == 'EditableText') {
setState(() {
textFieldVisited = true;
});
}
// Movement to navigation bar and back
if (event.runtimeType.toString() == (textFieldVisited ? 'RawKeyUpEvent' : 'RawKeyDownEvent')) {
int keyCode = (event.data as RawKeyEventDataAndroid).keyCode;
// Movement to navigation bar and back
switch (keyCode) {
case 127: // Menu on Android TV
case 327: // EPG on Hisense TV
focusToNavbar(navigatorFocusNode);
focusToNavbar(navigationBarFocusNode);
break;
case 22: // LEFT + RIGHT
case 21:
if (_keyPressed == 21 && keyCode == 22 || _keyPressed == 22 && keyCode == 21) {
focusToNavbar(navigatorFocusNode);
focusToNavbar(navigationBarFocusNode);
}
_keyPressed = keyCode;
Future.delayed(Duration(milliseconds: 100), () => {
@ -264,31 +284,36 @@ class _MainScreenState extends State<MainScreen> with SingleTickerProviderStateM
break;
case 20: // DOWN
// If it's bottom row, go to navigation bar
var row = FocusManager.instance.primaryFocus.parent;
var column = row.parent;
if (column.children.last == row) {
focusToNavbar(navigatorFocusNode);
var row = primaryFocus.parent;
if (row != null) {
var column = row.parent;
if (column.children.last == row) {
focusToNavbar(navigationBarFocusNode);
}
}
break;
case 19: // UP
if (navigatorFocusNode.hasFocus) {
rootFocusNode.focusInDirection(TraversalDirection.up);
}
if (navigatorFocusNode.parent.hasPrimaryFocus || navigatorFocusNode.parent.parent.hasPrimaryFocus) {
navigatorFocusNode.parent.children.first.children.first.requestFocus();
if (navigationBarFocusNode.hasFocus) {
screenFocusNode.parent.parent.children.last // children.last is used for handling "playlists" screen in library. Under CustomNavigator 2 screens appears.
.nextFocus(); // nextFocus is used instead of requestFocus because it focuses on last, bottom, non-visible tile of main page
}
break;
}
}
// WA for returning from search: focus on first child if parent is focused
if (event.runtimeType.toString() == 'RawKeyUpEvent') {
LogicalKeyboardKey key = event.data.logicalKey;
var modalFocusNode = navigatorFocusNode.parent.parent.children.first.children.first
.children.first;
if (key == LogicalKeyboardKey.arrowRight && modalFocusNode.hasPrimaryFocus) {
modalFocusNode.unfocus();
modalFocusNode.focusInDirection(TraversalDirection.right);
// After visiting text field, something goes wrong and KeyDown events are not sent, only KeyUp-s.
// Focus moving works only on KeyDown events, so here we simulate keys handling as it's done in Flutter
if (textFieldVisited && event.runtimeType.toString() == 'RawKeyUpEvent') {
Map<LogicalKeySet, Intent> shortcuts = Shortcuts.of(context).shortcuts;
final BuildContext primaryContext = primaryFocus?.context;
Intent intent = shortcuts[LogicalKeySet(event.logicalKey)];
if (intent != null) {
Actions.invoke(primaryContext, intent, nullOk: true);
}
// WA for "Search field -> navigator -> UP -> DOWN" case. Prevents focus hanging.
FocusNode newFocus = FocusManager.instance.primaryFocus;
if (newFocus is FocusScopeNode) {
navigationBarFocusNode.requestFocus();
}
}
};
@ -301,16 +326,16 @@ class _MainScreenState extends State<MainScreen> with SingleTickerProviderStateM
@override
Widget build(BuildContext context) {
FocusScopeNode navigatorFocusNode = FocusScopeNode(); // for bottom navigator
FocusNode rootFocusNode = FocusNode(); // for Scaffold
FocusScopeNode navigationBarFocusNode = FocusScopeNode(); // for bottom navigation bar
FocusNode screenFocusNode = FocusNode(); // for CustomNavigator
return RawKeyboardListener(
focusNode: rootFocusNode,
onKey: _handleKey(navigatorFocusNode, rootFocusNode),
focusNode: FocusNode(),
onKey: _handleKey(navigationBarFocusNode, screenFocusNode),
child: Scaffold(
bottomNavigationBar:
FocusScope(
node: navigatorFocusNode,
node: navigationBarFocusNode,
child: Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
@ -348,8 +373,13 @@ class _MainScreenState extends State<MainScreen> with SingleTickerProviderStateM
body: AudioServiceWidget(
child: CustomNavigator(
navigatorKey: navigatorKey,
home: _screens[_selected],
pageRoute: PageRoutes.materialPageRoute,
home: Focus(
focusNode: screenFocusNode,
skipTraversal: true,
canRequestFocus: false,
child: _screens[_selected]
),
pageRoute: PageRoutes.materialPageRoute
),
)));
}

44
lib/ui/search.dart
View File

@ -125,7 +125,8 @@ class _SearchScreenState extends State<SearchScreen> {
var textFielFocusNode = FocusNode();
return Scaffold(
appBar: FreezerAppBar('Search'.i18n),
body: ListView(
body: FocusScope(
child: ListView(
children: <Widget>[
Container(height: 4.0),
Padding(
@ -167,30 +168,32 @@ class _SearchScreenState extends State<SearchScreen> {
onSubmitted: (String s) => _submit(context, query: s),
)
),
Row(
mainAxisSize: MainAxisSize.min,
children: [
Container(
width: 40.0,
child: IconButton(
splashRadius: 20.0,
icon: Icon(Icons.clear),
onPressed: () {
setState(() {
_suggestions = [];
_query = '';
});
_controller.clear();
},
Focus(
canRequestFocus: false, // Focus is moving to cross, and hangs out there,
descendantsAreFocusable: false, // so we disable focusing on it at all
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
Container(
width: 40.0,
child: IconButton(
splashRadius: 20.0,
icon: Icon(Icons.clear),
onPressed: () {
setState(() {
_suggestions = [];
_query = '';
});
_controller.clear();
},
),
),
),
],
],
)
)
],
)
),
],
),
),
@ -299,6 +302,7 @@ class _SearchScreenState extends State<SearchScreen> {
},
))
],
)
),
);
}