这就是我的意思：
正如您所看到的，动画是从上到下开始的，当我将另一个文件集成到其中时，问题就开始了
示例：
在这里，我 Package 了另一个小部件，并没有考虑应用程序栏的高度
这是我的代码：
首页计时器. dart
import 'dart:core';
import 'package:flutter/material.dart';
import 'package:google_nav_bar/google_nav_bar.dart';
import 'package:pomodoro/5.hourglass_animation/countdown_timer/pomodoro_animation.dart';
import 'dart:async';
class HomePageTimerUI extends StatefulWidget {
const HomePageTimerUI({Key? key}) : super(key: key);
@override
State<HomePageTimerUI> createState() => _HomePageTimerUIState();
}
class _HomePageTimerUIState extends State<HomePageTimerUI>
with TickerProviderStateMixin {
late TabController _tabController;
late Timer timer;
late AnimationController controller;
String get countText {
Duration count = controller.duration! * controller.value;
return controller.isDismissed
? '${controller.duration!.inHours.toString().padLeft(2, '0')}:${(controller.duration!.inMinutes % 60).toString().padLeft(2, '0')}:${(controller.duration!.inSeconds % 60).toString().padLeft(2, '0')}'
: '${count.inHours.toString().padLeft(2, '0')}:${(count.inMinutes % 60).toString().padLeft(2, '0')}:${(count.inSeconds % 60).toString().padLeft(2, '0')}';
}
@override
void initState() {
super.initState();
_tabController = TabController(length: 3, vsync: this);
}
@override
void dispose() {
_tabController.dispose();
super.dispose();
}
void notify() {
if (countText == '00:00:00') {
_tabController.animateTo(1, duration: const Duration(milliseconds: 300));
}
}
@override
Widget build(BuildContext context) {
return Container(
height: MediaQuery.of(context).size.height,
child: DefaultTabController(
length: 3,
child: Scaffold(
appBar: AppBar(
elevation: 0,
backgroundColor: Colors.transparent,
bottom: PreferredSize(
preferredSize: const Size.fromHeight(35),
child: Container(
color: Colors.transparent,
child: SafeArea(
child: Column(
children: <Widget>[
TabBar(
controller: _tabController,
indicator: const UnderlineTabIndicator(
borderSide: BorderSide(
color: Color(0xff3B3B3B), width: 4.0),
insets:
EdgeInsets.fromLTRB(12.0, 12.0, 12.0, 11.0)),
indicatorWeight: 15,
indicatorSize: TabBarIndicatorSize.label,
labelColor: const Color(0xff3B3B3B),
labelStyle: const TextStyle(
fontSize: 12,
letterSpacing: 1.3,
fontWeight: FontWeight.w500),
unselectedLabelColor: const Color(0xffD7D7D7),
tabs: const [
Tab(
text: "POMODORO",
icon: Icon(Icons.work_history, size: 35),
),
Tab(
text: "SHORT BREAK",
icon: Icon(Icons.ramen_dining, size: 35),
),
Tab(
text: "LONG BREAK",
icon: Icon(Icons.battery_charging_full_rounded,
size: 35),
),
])
],
),
),
),
),
),
body: TabBarView(
controller: _tabController,
children: <Widget>[
Center(
child: Container(
height: MediaQuery.of(context).size.height,
child: StartPomodoro(end: DateTime.now())),
),
const Center(
child: Text('short break'),
),
const Center(
child: Text('long break '),
),
],
),
),
),
);
}
}开始_番茄. dart
import 'dart:async';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:pomodoro/5.hourglass_animation/countdown_timer/responsive.dart';
class StartPomodoro extends StatefulWidget {
const StartPomodoro({super.key, required this.end});
final DateTime end;
@override
State<StartPomodoro> createState() => _StartPomodoroState();
}
class _StartPomodoroState extends State<StartPomodoro>
with TickerProviderStateMixin {
final now = DateTime.now();
List<bool> isSelected = [true, false];
late Timer timer;
late AnimationController controller;
String get countText {
Duration count = controller.duration! * controller.value;
return controller.isDismissed
? '${controller.duration!.inHours.toString().padLeft(2, '0')}:${(controller.duration!.inMinutes % 60).toString().padLeft(2, '0')}:${(controller.duration!.inSeconds % 60).toString().padLeft(2, '0')}'
: '${count.inHours.toString().padLeft(2, '0')}:${(count.inMinutes % 60).toString().padLeft(2, '0')}:${(count.inSeconds % 60).toString().padLeft(2, '0')}';
}
double progress = 1.0;
bool LongBreak = true;
void notify() {
if (countText == '00:00:00') {}
}
@override
void initState() {
super.initState();
controller = AnimationController(
vsync: this,
duration: const Duration(seconds: 0),
);
controller.addListener(() {
notify();
if (controller.isAnimating) {
setState(() {
progress = controller.value;
});
} else {
setState(() {
progress = 1.0;
LongBreak = true;
});
}
});
}
@override
void dispose() {
controller.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return SafeArea(
child: Scaffold(
backgroundColor:
LongBreak ? const Color(0xffD94530) : const Color(0xff6351c5),
body: Stack(
children: [
GestureDetector(
onTap: () {
if (controller.isDismissed) {
showModalBottomSheet(
context: context,
builder: (context) => SizedBox(
height: 300,
child: CupertinoTimerPicker(
initialTimerDuration: controller.duration!,
onTimerDurationChanged: (time) {
setState(() {
controller.duration = time;
});
},
),
),
);
}
},
child: AnimatedBuilder(
animation: controller,
builder: (context, child) {
return Stack(
children: <Widget>[
Align(
alignment: Alignment.bottomCenter,
child: Container(
color: const Color(0xffD94530),
height: controller.value *
MediaQuery.of(context).size.height,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: Responsive(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Align(
alignment: Alignment.bottomCenter,
child: Align(
alignment: FractionalOffset.bottomCenter,
child: Container(
width:
MediaQuery.of(context).size.width,
height: 210,
decoration: const BoxDecoration(
color: Color.fromARGB(
255, 245, 245, 245),
),
child: Container(
padding: const EdgeInsets.all(20.0),
child: Column(
crossAxisAlignment:
CrossAxisAlignment.start,
children: [
const Text(
"Hyper-focused on... (+add task)",
style: TextStyle(
fontSize: 22.0,
fontWeight: FontWeight.w500,
),
),
const SizedBox(height: 16),
Center(
child: Column(
mainAxisAlignment:
MainAxisAlignment.center,
children: [
Row(
mainAxisAlignment:
MainAxisAlignment
.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Center(
child: Text(
countText,
style:
const TextStyle(
fontWeight:
FontWeight.w600,
letterSpacing: 4,
fontSize: 65.0,
color: Color(
0xff3B3B3B),
),
),
),
],
),
Row(
mainAxisAlignment:
MainAxisAlignment
.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: const [
Center(
child: Text(
' Hours Minutes Seconds ',
style: TextStyle(
fontWeight:
FontWeight.w500,
letterSpacing: 2,
fontSize: 20.0,
color: Color(
0xff3B3B3B),
),
),
),
],
),
],
),
),
],
),
),
),
),
),
//Spacer(),
Responsive(
child: Column(
mainAxisAlignment:
MainAxisAlignment.center,
crossAxisAlignment:
CrossAxisAlignment.stretch,
children: [
AnimatedBuilder(
animation: controller,
builder: (context, child) {
return const Padding(
padding: EdgeInsets.symmetric(
vertical: 2.0,
horizontal: 15.0),
);
}),
AnimatedBuilder(
animation: controller,
builder: (context, child) {
return Padding(
padding:
const EdgeInsets.symmetric(
vertical: 2.0,
horizontal: 15.0),
child: FloatingActionButton
.extended(
backgroundColor:
const Color(
0xffFAFAFA),
onPressed: () {
if (controller
.isAnimating) {
controller.stop();
setState(() {
LongBreak = false;
});
} else {
controller.reverse(
from: controller
.value ==
0
? 1.0
: controller
.value);
setState(() {
LongBreak = false;
});
}
},
icon: Icon(
controller.isAnimating
? Icons.pause
: Icons
.play_arrow,
color: const Color(
0xff3B3B3B),
),
label: Text(
controller.isAnimating
? "Pause"
: "Start",
style: const TextStyle(
color: Color(
0xff3B3B3B)),
)),
);
}),
],
),
),
],
),
),
),
],
);
}),
),
],
),
),
);
}
AnimationController _buildClockAnimation(TickerProvider tickerProvider) {
return AnimationController(
vsync: tickerProvider,
duration: const Duration(milliseconds: 750),
);
}
void _animateLeftDigit(
int prev,
int current,
AnimationController controller,
) {
final prevFirstDigit = (prev / 10).floor();
final currentFirstDigit = (current / 10).floor();
if (prevFirstDigit != currentFirstDigit) {
controller.forward();
}
}
}如何提供一个与应用程序栏小部件相关的动画小部件的高度，并且在启动计时器时没有延迟？
我的意思是我想在这里开始动画：
谢谢你能提供的任何帮助
1条答案
按热度按时间tsm1rwdh1#
正如@Henrique Zanferrari建议的那样，您正在使用
screen中的height这限制了
appBar的小部件。尝试将此
height替换为更通用的Widget，如Expanded或Flexible。