mod: homePage开发、mainPage优化
This commit is contained in:
guozhigq
7
lib/common/constants.dart
Normal file
7
lib/common/constants.dart
Normal file
@ -0,0 +1,7 @@
|
||||
import 'package:flutter/material.dart';
|
||||
|
||||
class StyleString {
|
||||
static const double cardSpace = 8;
|
||||
static BorderRadius mdRadius = BorderRadius.circular(6);
|
||||
static const Radius imgRadius = Radius.circular(6);
|
||||
}
|
||||
@ -0,0 +1,47 @@
|
||||
import 'package:flutter/cupertino.dart';
|
||||
import 'package:get/get.dart';
|
||||
import 'package:pilipala/http/api.dart';
|
||||
import 'package:pilipala/http/init.dart';
|
||||
|
||||
class HomeController extends GetxController {
|
||||
final ScrollController scrollController = ScrollController();
|
||||
int count = 12;
|
||||
int _currentPage = 1;
|
||||
int crossAxisCount = 2;
|
||||
RxList videoList = [].obs;
|
||||
bool isLoadingMore = false;
|
||||
@override
|
||||
void onInit() {
|
||||
super.onInit();
|
||||
queryRcmdFeed('init');
|
||||
}
|
||||
|
||||
// 获取推荐
|
||||
Future queryRcmdFeed(type) async {
|
||||
var res = await Request().get(
|
||||
Api.recommendList,
|
||||
data: {'feed_version': "V3", 'ps': count, 'fresh_idx': _currentPage},
|
||||
);
|
||||
var data = res.data['data']['item'];
|
||||
if (type == 'init') {
|
||||
videoList.value = data;
|
||||
} else if (type == 'onRefresh') {
|
||||
videoList.insertAll(0, data);
|
||||
} else if (type == 'onLoad') {
|
||||
videoList.addAll(data);
|
||||
}
|
||||
_currentPage += 1;
|
||||
isLoadingMore = false;
|
||||
}
|
||||
|
||||
// 下拉刷新
|
||||
Future onRefresh() async {
|
||||
queryRcmdFeed('onRefresh');
|
||||
}
|
||||
|
||||
// 上拉加载
|
||||
Future onLoad() async {
|
||||
await Future.delayed(const Duration(milliseconds: 500));
|
||||
queryRcmdFeed('onLoad');
|
||||
}
|
||||
}
|
||||
|
||||
@ -1,18 +1,151 @@
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:get/get.dart';
|
||||
import './controller.dart';
|
||||
import 'package:pilipala/common/constants.dart';
|
||||
import 'package:pilipala/pages/home/widgets/app_bar.dart';
|
||||
|
||||
class HomePage extends StatefulWidget {
|
||||
const HomePage({super.key});
|
||||
const HomePage({Key? key}) : super(key: key);
|
||||
|
||||
@override
|
||||
State<HomePage> createState() => _HomePageState();
|
||||
}
|
||||
|
||||
class _HomePageState extends State<HomePage> {
|
||||
class _HomePageState extends State<HomePage>
|
||||
with AutomaticKeepAliveClientMixin {
|
||||
final HomeController _homeController = Get.put(HomeController());
|
||||
List videoList = [];
|
||||
|
||||
@override
|
||||
bool get wantKeepAlive => true;
|
||||
|
||||
@override
|
||||
void initState() {
|
||||
super.initState();
|
||||
_homeController.videoList.listen((value) {
|
||||
videoList = value;
|
||||
setState(() {});
|
||||
});
|
||||
|
||||
_homeController.scrollController.addListener(
|
||||
() {
|
||||
if (_homeController.scrollController.position.pixels >=
|
||||
_homeController.scrollController.position.maxScrollExtent - 200) {
|
||||
if (!_homeController.isLoadingMore) {
|
||||
_homeController.isLoadingMore = true;
|
||||
_homeController.onLoad();
|
||||
}
|
||||
}
|
||||
},
|
||||
);
|
||||
}
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
super.build(context);
|
||||
return Scaffold(
|
||||
appBar: AppBar(
|
||||
title: const Text('推荐'),
|
||||
// body: NestedScrollView(
|
||||
// headerSliverBuilder: (context, innerBoxIsScrolled) => [
|
||||
// const HomeAppBar()
|
||||
// ],
|
||||
body: RefreshIndicator(
|
||||
displacement: kToolbarHeight + MediaQuery.of(context).padding.top,
|
||||
onRefresh: () async {
|
||||
return await _homeController.onRefresh();
|
||||
},
|
||||
child: CustomScrollView(
|
||||
controller: _homeController.scrollController,
|
||||
slivers: [
|
||||
const HomeAppBar(),
|
||||
// SliverPersistentHeader(
|
||||
// delegate: MySliverPersistentHeaderDelegate(),
|
||||
// pinned: true,
|
||||
// ),
|
||||
SliverPadding(
|
||||
// 单列布局 EdgeInsets.zero
|
||||
padding: _homeController.crossAxisCount == 1
|
||||
? EdgeInsets.zero
|
||||
: const EdgeInsets.fromLTRB(
|
||||
StyleString.cardSpace, 0, StyleString.cardSpace, 8),
|
||||
sliver: SliverGrid(
|
||||
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
|
||||
// 行间距
|
||||
mainAxisSpacing: StyleString.cardSpace,
|
||||
// 列间距
|
||||
crossAxisSpacing: StyleString.cardSpace,
|
||||
// 列数
|
||||
crossAxisCount: _homeController.crossAxisCount,
|
||||
mainAxisExtent: MediaQuery.of(context).size.width /
|
||||
_homeController.crossAxisCount *
|
||||
(10 / 16) +
|
||||
72),
|
||||
delegate: SliverChildBuilderDelegate(
|
||||
(BuildContext context, int index) {
|
||||
return Container(
|
||||
color: Theme.of(context).colorScheme.surfaceVariant,
|
||||
child: Text(index.toString()),
|
||||
);
|
||||
},
|
||||
childCount: videoList.isNotEmpty ? videoList.length : 10,
|
||||
),
|
||||
),
|
||||
),
|
||||
const LoadingMore()
|
||||
],
|
||||
),
|
||||
),
|
||||
// ),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class MySliverPersistentHeaderDelegate extends SliverPersistentHeaderDelegate {
|
||||
@override
|
||||
Widget build(
|
||||
BuildContext context, double shrinkOffset, bool overlapsContent) {
|
||||
return Container(
|
||||
alignment: Alignment.center,
|
||||
decoration: BoxDecoration(
|
||||
color: Theme.of(context).colorScheme.surface,
|
||||
border: Border(
|
||||
bottom: BorderSide(
|
||||
color: Theme.of(context).dividerColor.withOpacity(0.1),
|
||||
),
|
||||
)),
|
||||
child: const Text(
|
||||
'我是一个SliverPersistentHeader',
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@override
|
||||
double get maxExtent => 55.0;
|
||||
|
||||
@override
|
||||
double get minExtent => 55.0;
|
||||
|
||||
@override
|
||||
bool shouldRebuild(SliverPersistentHeaderDelegate oldDelegate) =>
|
||||
true; // 如果内容需要更新，设置为true
|
||||
}
|
||||
|
||||
// loading more
|
||||
class LoadingMore extends StatelessWidget {
|
||||
const LoadingMore({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return SliverToBoxAdapter(
|
||||
child: Container(
|
||||
height: MediaQuery.of(context).padding.bottom + 80,
|
||||
padding: EdgeInsets.only(bottom: MediaQuery.of(context).padding.bottom),
|
||||
child: Center(
|
||||
child: Text(
|
||||
'加载中...',
|
||||
style: TextStyle(
|
||||
color: Theme.of(context).colorScheme.outline, fontSize: 13),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
58
lib/pages/home/widgets/app_bar.dart
Normal file
58
lib/pages/home/widgets/app_bar.dart
Normal file
@ -0,0 +1,58 @@
|
||||
import 'dart:io';
|
||||
import 'package:flutter/material.dart';
|
||||
|
||||
class HomeAppBar extends StatelessWidget {
|
||||
const HomeAppBar({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return SliverAppBar(
|
||||
// forceElevated: true,
|
||||
scrolledUnderElevation: 0,
|
||||
toolbarHeight: Platform.isAndroid
|
||||
? (MediaQuery.of(context).padding.top + 6)
|
||||
: Platform.isIOS
|
||||
? MediaQuery.of(context).padding.top - 2
|
||||
: kToolbarHeight,
|
||||
expandedHeight: kToolbarHeight + MediaQuery.of(context).padding.top,
|
||||
automaticallyImplyLeading: false,
|
||||
pinned: true,
|
||||
floating: true,
|
||||
primary: false,
|
||||
flexibleSpace: LayoutBuilder(
|
||||
builder: (context, constraints) {
|
||||
return FlexibleSpaceBar(
|
||||
background: Column(
|
||||
children: [
|
||||
AppBar(
|
||||
centerTitle: false,
|
||||
title: const Text(
|
||||
'PiLiPaLa',
|
||||
style: TextStyle(
|
||||
fontSize: 18,
|
||||
fontWeight: FontWeight.bold,
|
||||
letterSpacing: 1,
|
||||
),
|
||||
),
|
||||
actions: [
|
||||
IconButton(
|
||||
onPressed: () {},
|
||||
icon: const Icon(Icons.notifications_none_rounded),
|
||||
),
|
||||
IconButton(
|
||||
onPressed: () {},
|
||||
icon: const Icon(Icons.search_rounded),
|
||||
),
|
||||
const SizedBox(width: 10)
|
||||
],
|
||||
elevation: 0,
|
||||
scrolledUnderElevation: 0,
|
||||
),
|
||||
],
|
||||
),
|
||||
);
|
||||
},
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,30 @@
|
||||
import 'package:get/get.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:pilipala/pages/home/view.dart';
|
||||
import 'package:pilipala/pages/hot/view.dart';
|
||||
import 'package:pilipala/pages/mine/view.dart';
|
||||
|
||||
class MainController extends GetxController {
|
||||
List<Widget> pages = <Widget>[
|
||||
const HomePage(),
|
||||
const HotPage(),
|
||||
const MinePage(),
|
||||
];
|
||||
List navigationBars = [
|
||||
{
|
||||
'icon': const Icon(Icons.home_outlined),
|
||||
'selectedIcon': const Icon(Icons.home),
|
||||
'label': "推荐",
|
||||
},
|
||||
{
|
||||
'icon': const Icon(Icons.whatshot_outlined),
|
||||
'selectedIcon': const Icon(Icons.whatshot_rounded),
|
||||
'label': "热门",
|
||||
},
|
||||
{
|
||||
'icon': const Icon(Icons.person_outline),
|
||||
'selectedIcon': const Icon(Icons.person),
|
||||
'label': "我的",
|
||||
}
|
||||
];
|
||||
}
|
||||
|
||||
@ -1,7 +1,6 @@
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:pilipala/pages/home/view.dart';
|
||||
import 'package:pilipala/pages/hot/view.dart';
|
||||
import 'package:pilipala/pages/mine/view.dart';
|
||||
import 'package:get/get.dart';
|
||||
import './controller.dart';
|
||||
|
||||
class MainApp extends StatefulWidget {
|
||||
const MainApp({super.key});
|
||||
@ -10,12 +9,35 @@ class MainApp extends StatefulWidget {
|
||||
State<MainApp> createState() => _MainAppState();
|
||||
}
|
||||
|
||||
class _MainAppState extends State<MainApp> {
|
||||
class _MainAppState extends State<MainApp> with SingleTickerProviderStateMixin {
|
||||
final MainController _mainController = Get.put(MainController());
|
||||
late AnimationController? _animationController;
|
||||
late Animation<double>? _fadeAnimation;
|
||||
late Animation<double>? _slideAnimation;
|
||||
int selectedIndex = 0;
|
||||
|
||||
@override
|
||||
void initState() {
|
||||
super.initState();
|
||||
_animationController = AnimationController(
|
||||
duration: const Duration(milliseconds: 800),
|
||||
reverseDuration: const Duration(milliseconds: 0),
|
||||
value: 1,
|
||||
vsync: this,
|
||||
);
|
||||
_fadeAnimation =
|
||||
Tween<double>(begin: 0.8, end: 1.0).animate(_animationController!);
|
||||
_slideAnimation =
|
||||
Tween(begin: 0.8, end: 1.0).animate(_animationController!);
|
||||
}
|
||||
|
||||
void setIndex(int value) {
|
||||
if (selectedIndex != value) {
|
||||
selectedIndex = value;
|
||||
_animationController!.reverse().then((_) {
|
||||
selectedIndex = value;
|
||||
_animationController!.forward();
|
||||
});
|
||||
setState(() {});
|
||||
}
|
||||
}
|
||||
@ -23,33 +45,34 @@ class _MainAppState extends State<MainApp> {
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return Scaffold(
|
||||
body: IndexedStack(
|
||||
index: selectedIndex,
|
||||
children: const [
|
||||
HomePage(),
|
||||
HotPage(),
|
||||
MinePage(),
|
||||
],
|
||||
body: FadeTransition(
|
||||
opacity: _fadeAnimation!,
|
||||
child: SlideTransition(
|
||||
position: Tween<Offset>(
|
||||
begin: const Offset(0, 0.5),
|
||||
end: Offset.zero,
|
||||
).animate(
|
||||
CurvedAnimation(
|
||||
parent: _slideAnimation!,
|
||||
curve: Curves.fastOutSlowIn,
|
||||
reverseCurve: Curves.linear,
|
||||
),
|
||||
),
|
||||
child: IndexedStack(
|
||||
index: selectedIndex,
|
||||
children: _mainController.pages,
|
||||
),
|
||||
),
|
||||
),
|
||||
bottomNavigationBar: NavigationBar(
|
||||
elevation: 1,
|
||||
destinations: const [
|
||||
NavigationDestination(
|
||||
icon: Icon(Icons.home_outlined),
|
||||
selectedIcon: Icon(Icons.home),
|
||||
label: "推荐",
|
||||
),
|
||||
NavigationDestination(
|
||||
icon: Icon(Icons.whatshot_outlined),
|
||||
selectedIcon: Icon(Icons.whatshot_rounded),
|
||||
label: "热门",
|
||||
),
|
||||
NavigationDestination(
|
||||
icon: Icon(Icons.person_outline),
|
||||
label: "我的",
|
||||
selectedIcon: Icon(Icons.person),
|
||||
),
|
||||
],
|
||||
destinations: _mainController.navigationBars.map((e) {
|
||||
return NavigationDestination(
|
||||
icon: e['icon'],
|
||||
selectedIcon: e['selectedIcon'],
|
||||
label: e['label'],
|
||||
);
|
||||
}).toList(),
|
||||
selectedIndex: selectedIndex,
|
||||
onDestinationSelected: (value) => setIndex(value),
|
||||
),
|
||||
|
||||
Reference in New Issue
Block a user