I'm trying to make my 3D Perspective PageView to navigate to specific page when I click the center Image. I followed this tutorial on youtube (https://www.youtube.com/watch?v=o-98lLOxohw) and customized it on my own project.
This is how my project looks like right now when I run it.
And this is my home.dart file.
I'll include my github repository link if you want to have a better look.
https://github.com/loupdaniel/Second-Life_Mobile
import 'package:flutter/material.dart';
import 'package:secondlife_mobile/PageViewHolder.dart';
import 'package:provider/provider.dart';
import 'package:url_launcher/url_launcher.dart';
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key});
#override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
final PageStorageBucket bucket = PageStorageBucket();
late PageViewHolder holder;
late PageController _controller;
double fraction =
0.57; // By using this fraction, we're telling the PageView to show the 50% of the previous and the next page area along with the main page
Future<void> _launchURL(String url) async {
final Uri uri = Uri(scheme: "https", host: url);
if (!await launchUrl(
uri,
mode: LaunchMode.inAppWebView,
)) {
throw 'Can not launch url';
}
}
#override
void initState() {
super.initState();
holder = PageViewHolder(value: 2.0);
_controller = PageController(initialPage: 2, viewportFraction: fraction);
_controller.addListener(() {
holder.setValue(_controller.page);
});
}
int index = 1;
int currentIndex = 0;
final PageController controller = PageController();
List<String> images = [
"https://i.ytimg.com/vi/PWADVtWyE9Q/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDcneFqOxHd28mCncQxT3jOErmk9Q",
"https://i.ytimg.com/vi/djzDWMy1z7k/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCHwD_IA2ERzpZVxNvxCEOGr4fyTw",
"https://i.ytimg.com/vi/n8OxyKNBsuQ/hqdefault.jpg?sqp=-oaymwEcCOADEI4CSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLAtW45_cxRqEWfUVw19UMts_9Q0lQ",
"https://i.ytimg.com/vi/7bDFD_WcU9I/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLAsgAH6VRN4w0HKtVc528WA5QSZ2w",
"https://i.ytimg.com/vi/_ABk7TmjnVk/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLAxCeIml0HUbjJ3igi1FFe1esdwdg",
"https://i.ytimg.com/vi/-8m0XFea2zE/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDBOBRGDJeDjhT1HbRobSN2Tp6hMA",
"https://i.ytimg.com/vi/mXLS2IzZSdg/hq720.jpg?sqp=-oaymwE2CNAFEJQDSFXyq4qpAygIARUAAIhCGAFwAcABBvABAfgB_gmAAtAFigIMCAAQARhdIFsoZTAP&rs=AOn4CLDS13MjaIBxjjhccIktpAb0azBG9g",
"https://i.ytimg.com/vi/HuzlYAMwwJY/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCmfMS9RENZuIJMQ8k2cf6MbHIpug",
"https://i.ytimg.com/vi/-nt_u4vo-DI/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLAgUinltWhU-qqmgc_JroDLPt3OEg",
"https://i.ytimg.com/vi/tqtZIyN_Alg/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLD4woxvyiNXgmSile7PLz7uoRPQOQ",
];
#override
Widget build(BuildContext context) {
return SafeArea(
child: Scaffold(
backgroundColor: const Color.fromARGB(255, 223, 234, 244),
appBar: AppBar(
backgroundColor: Colors.transparent,
centerTitle: true,
title: const Text('AppBar'),
),
body: SingleChildScrollView(
child: SizedBox(
height: MediaQuery.of(context).size.height,
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const SizedBox(
height: 30,
),
const Padding(
padding: EdgeInsets.symmetric(horizontal: 35),
child: Text(
'Playlist for you',
style: TextStyle(
fontSize: 20,
fontWeight: FontWeight.w400,
),
),
),
const SizedBox(height: 15),
Container(
child: Center(
child: AspectRatio(
aspectRatio: 1,
child: ChangeNotifierProvider<PageViewHolder>.value(
value: holder,
child: PageView.builder(
controller: _controller,
itemCount: 4,
physics: const BouncingScrollPhysics(),
itemBuilder: (context, index) {
return MyPage(
number: index.toDouble(),
fraction: fraction,
);
},
),
),
),
),
),
Transform.translate(
offset: const Offset(0, -85),
child: const Padding(
padding: EdgeInsets.symmetric(horizontal: 35),
child: Text(
'Watch videos',
style: TextStyle(
fontSize: 17,
fontWeight: FontWeight.w600,
),
),
),
),
//https://www.youtube.com/watch?v=7a_RXHOkJLM
//https://github.com/Programmer9211/Flutter-Carousel-Slider/blob/main/lib/main.dart
Transform.translate(
offset: const Offset(0, -65),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Container(
alignment: Alignment.center,
child: SizedBox(
height: 162,
width: 335,
child: PageView.builder(
controller: controller,
onPageChanged: (index) {
setState(() {
currentIndex = index % images.length;
});
},
itemBuilder: (context, index) {
return Padding(
padding:
const EdgeInsets.symmetric(horizontal: 35),
child: SizedBox(
height: 100,
width: 400,
child: Image.network(
images[index % images.length],
fit: BoxFit.fill,
),
),
);
},
),
),
),
],
),
),
////Your Playlist of the week text
Transform.translate(
offset: const Offset(0, -30),
child: const Padding(
padding: EdgeInsets.symmetric(horizontal: 35),
child: Text(
'Playlist of the week',
style: TextStyle(
fontSize: 17,
fontWeight: FontWeight.w600,
),
),
),
),
Transform.translate(
offset: const Offset(0, -15),
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 35),
child: SingleChildScrollView(
child: Column(
children: [
SizedBox(
height: 150,
child: ListView(
scrollDirection: Axis.horizontal,
children: <Widget>[
GestureDetector(
onTap: () {
_launchURL("www.google.com");
},
child: SizedBox(
height: 180.0,
width: 220.0,
child: Image.asset(
'assets/images/album1.jpg',
height: 180.0,
width: 220.0,
),
),
),
const SizedBox(
width: 30,
),
GestureDetector(
onTap: () {
_launchURL("www.google.com");
},
child: SizedBox(
height: 180.0,
width: 220.0,
child: Image.asset(
'assets/images/album2.jpg',
height: 180.0,
width: 220.0,
),
),
),
const SizedBox(
width: 30,
),
GestureDetector(
onTap: () {
_launchURL("www.google.com");
},
child: SizedBox(
height: 160.0,
width: 200.0,
child: Image.asset(
'assets/images/album3.jpg',
height: 160.0,
width: 200.0,
),
),
),
const SizedBox(
width: 30,
),
GestureDetector(
onTap: () {
_launchURL("www.google.com");
},
child: SizedBox(
height: 160.0,
width: 200.0,
child: Image.asset(
'assets/images/album4.jpg',
height: 160.0,
width: 200.0,
),
),
),
const SizedBox(
width: 30,
),
GestureDetector(
onTap: () {
_launchURL("www.google.com");
},
child: SizedBox(
height: 160.0,
width: 200.0,
child: Image.asset(
'assets/images/album5.jpg',
height: 160.0,
width: 200.0,
),
),
),
],
),
),
],
),
),
),
),
],
),
),
),
),
);
}
}
class MyPage extends StatelessWidget {
final number;
final double? fraction;
const MyPage({super.key, this.number, this.fraction});
#override
Widget build(BuildContext context) {
double? value = Provider.of<PageViewHolder>(context).value;
double diff = (number - value);
// diff is negative = left page
// diff is 0 = current page
// diff is positive = next page
//Matrix for Elements
final Matrix4 pvMatrix = Matrix4.identity()
..setEntry(3, 2, 1 / 0.9) //Increasing Scale by 90%
..setEntry(1, 1, fraction!) //Changing Scale Along Y Axis
..setEntry(3, 0, 0.004 * -diff); //Changing Perspective Along X Axis
final Matrix4 shadowMatrix = Matrix4.identity()
..setEntry(3, 3, 1 / 1.6) //Increasing Scale by 60%
..setEntry(3, 1, -0.004) //Changing Scale Along Y Axis
..setEntry(3, 0, 0.002 * diff) //Changing Perspective along X Axis
..rotateX(1.309); //Rotating Shadow along X Axis
return Stack(
fit: StackFit.expand,
alignment: FractionalOffset.center,
children: [
Transform.translate(
offset: const Offset(0.0, -47.5),
child: Transform(
transform: pvMatrix,
alignment: FractionalOffset.center,
child: Container(
decoration: BoxDecoration(boxShadow: [
BoxShadow(
color: Colors.grey.withOpacity(0.5),
blurRadius: 11.0,
spreadRadius: 4.0,
offset: const Offset(
13.0, 35.0), // shadow direction: bottom right
)
]),
child: Image.asset(
"assets/images/image_${number.toInt() + 1}.jpg",
fit: BoxFit.fill),
),
),
),
],
);
}
}
You can use GestureDetector or InkWell Widget to handle onTap or touch function on any Widget. Add either of this Widget in your code
Sample Code : -
GestureDetector(
onTap: (() {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => const SecondPage()), // Navigate to SecondPage
);
}),
child: Container(
child: Center(
child: AspectRatio(
aspectRatio: 1,
child: ChangeNotifierProvider<PageViewHolder>.value(
value: holder,
child: PageView.builder(
controller: _controller,
itemCount: 4,
physics: const BouncingScrollPhysics(),
itemBuilder: (context, index) {
return MyPage(
number: index.toDouble(),
fraction: fraction,
);
},
),
),
),
),
),
),
Full Code : -
import 'package:flutter/material.dart';
import 'package:secondlife_mobile/PageViewHolder.dart';
import 'package:provider/provider.dart';
import 'package:url_launcher/url_launcher.dart';
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key});
#override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
final PageStorageBucket bucket = PageStorageBucket();
late PageViewHolder holder;
late PageController _controller;
double fraction =
0.57; // By using this fraction, we're telling the PageView to show the 50% of the previous and the next page area along with the main page
Future<void> _launchURL(String url) async {
final Uri uri = Uri(scheme: "https", host: url);
if (!await launchUrl(
uri,
mode: LaunchMode.inAppWebView,
)) {
throw 'Can not launch url';
}
}
#override
void initState() {
super.initState();
holder = PageViewHolder(value: 2.0);
_controller = PageController(initialPage: 2, viewportFraction: fraction);
_controller.addListener(() {
holder.setValue(_controller.page);
});
}
int index = 1;
int currentIndex = 0;
final PageController controller = PageController();
List<String> images = [
"https://i.ytimg.com/vi/PWADVtWyE9Q/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDcneFqOxHd28mCncQxT3jOErmk9Q",
"https://i.ytimg.com/vi/djzDWMy1z7k/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCHwD_IA2ERzpZVxNvxCEOGr4fyTw",
"https://i.ytimg.com/vi/n8OxyKNBsuQ/hqdefault.jpg?sqp=-oaymwEcCOADEI4CSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLAtW45_cxRqEWfUVw19UMts_9Q0lQ",
"https://i.ytimg.com/vi/7bDFD_WcU9I/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLAsgAH6VRN4w0HKtVc528WA5QSZ2w",
"https://i.ytimg.com/vi/_ABk7TmjnVk/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLAxCeIml0HUbjJ3igi1FFe1esdwdg",
"https://i.ytimg.com/vi/-8m0XFea2zE/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLDBOBRGDJeDjhT1HbRobSN2Tp6hMA",
"https://i.ytimg.com/vi/mXLS2IzZSdg/hq720.jpg?sqp=-oaymwE2CNAFEJQDSFXyq4qpAygIARUAAIhCGAFwAcABBvABAfgB_gmAAtAFigIMCAAQARhdIFsoZTAP&rs=AOn4CLDS13MjaIBxjjhccIktpAb0azBG9g",
"https://i.ytimg.com/vi/HuzlYAMwwJY/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLCmfMS9RENZuIJMQ8k2cf6MbHIpug",
"https://i.ytimg.com/vi/-nt_u4vo-DI/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLAgUinltWhU-qqmgc_JroDLPt3OEg",
"https://i.ytimg.com/vi/tqtZIyN_Alg/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLD4woxvyiNXgmSile7PLz7uoRPQOQ",
];
#override
Widget build(BuildContext context) {
return SafeArea(
child: Scaffold(
backgroundColor: const Color.fromARGB(255, 223, 234, 244),
appBar: AppBar(
backgroundColor: Colors.transparent,
centerTitle: true,
title: const Text('AppBar'),
),
body: SingleChildScrollView(
child: SizedBox(
height: MediaQuery.of(context).size.height,
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const SizedBox(
height: 30,
),
const Padding(
padding: EdgeInsets.symmetric(horizontal: 35),
child: Text(
'Playlist for you',
style: TextStyle(
fontSize: 20,
fontWeight: FontWeight.w400,
),
),
),
const SizedBox(height: 15),
GestureDetector(
onTap: (() {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) =>
const SecondPage()), // Navigate to SecondPage
);
}),
child: Container(
child: Center(
child: AspectRatio(
aspectRatio: 1,
child: ChangeNotifierProvider<PageViewHolder>.value(
value: holder,
child: PageView.builder(
controller: _controller,
itemCount: 4,
physics: const BouncingScrollPhysics(),
itemBuilder: (context, index) {
return MyPage(
number: index.toDouble(),
fraction: fraction,
);
},
),
),
),
),
),
),
Transform.translate(
offset: const Offset(0, -85),
child: const Padding(
padding: EdgeInsets.symmetric(horizontal: 35),
child: Text(
'Watch videos',
style: TextStyle(
fontSize: 17,
fontWeight: FontWeight.w600,
),
),
),
),
//https://www.youtube.com/watch?v=7a_RXHOkJLM
//https://github.com/Programmer9211/Flutter-Carousel-Slider/blob/main/lib/main.dart
Transform.translate(
offset: const Offset(0, -65),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Container(
alignment: Alignment.center,
child: SizedBox(
height: 162,
width: 335,
child: PageView.builder(
controller: controller,
onPageChanged: (index) {
setState(() {
currentIndex = index % images.length;
});
},
itemBuilder: (context, index) {
return Padding(
padding:
const EdgeInsets.symmetric(horizontal: 35),
child: SizedBox(
height: 100,
width: 400,
child: Image.network(
images[index % images.length],
fit: BoxFit.fill,
),
),
);
},
),
),
),
],
),
),
////Your Playlist of the week text
Transform.translate(
offset: const Offset(0, -30),
child: const Padding(
padding: EdgeInsets.symmetric(horizontal: 35),
child: Text(
'Playlist of the week',
style: TextStyle(
fontSize: 17,
fontWeight: FontWeight.w600,
),
),
),
),
Transform.translate(
offset: const Offset(0, -15),
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 35),
child: SingleChildScrollView(
child: Column(
children: [
SizedBox(
height: 150,
child: ListView(
scrollDirection: Axis.horizontal,
children: <Widget>[
GestureDetector(
onTap: () {
_launchURL("www.google.com");
},
child: SizedBox(
height: 180.0,
width: 220.0,
child: Image.asset(
'assets/images/album1.jpg',
height: 180.0,
width: 220.0,
),
),
),
const SizedBox(
width: 30,
),
GestureDetector(
onTap: () {
_launchURL("www.google.com");
},
child: SizedBox(
height: 180.0,
width: 220.0,
child: Image.asset(
'assets/images/album2.jpg',
height: 180.0,
width: 220.0,
),
),
),
const SizedBox(
width: 30,
),
GestureDetector(
onTap: () {
_launchURL("www.google.com");
},
child: SizedBox(
height: 160.0,
width: 200.0,
child: Image.asset(
'assets/images/album3.jpg',
height: 160.0,
width: 200.0,
),
),
),
const SizedBox(
width: 30,
),
GestureDetector(
onTap: () {
_launchURL("www.google.com");
},
child: SizedBox(
height: 160.0,
width: 200.0,
child: Image.asset(
'assets/images/album4.jpg',
height: 160.0,
width: 200.0,
),
),
),
const SizedBox(
width: 30,
),
GestureDetector(
onTap: () {
_launchURL("www.google.com");
},
child: SizedBox(
height: 160.0,
width: 200.0,
child: Image.asset(
'assets/images/album5.jpg',
height: 160.0,
width: 200.0,
),
),
),
],
),
),
],
),
),
),
),
],
),
),
),
),
);
}
}
class MyPage extends StatelessWidget {
final number;
final double? fraction;
const MyPage({super.key, this.number, this.fraction});
#override
Widget build(BuildContext context) {
double? value = Provider.of<PageViewHolder>(context).value;
double diff = (number - value);
// diff is negative = left page
// diff is 0 = current page
// diff is positive = next page
//Matrix for Elements
final Matrix4 pvMatrix = Matrix4.identity()
..setEntry(3, 2, 1 / 0.9) //Increasing Scale by 90%
..setEntry(1, 1, fraction!) //Changing Scale Along Y Axis
..setEntry(3, 0, 0.004 * -diff); //Changing Perspective Along X Axis
final Matrix4 shadowMatrix = Matrix4.identity()
..setEntry(3, 3, 1 / 1.6) //Increasing Scale by 60%
..setEntry(3, 1, -0.004) //Changing Scale Along Y Axis
..setEntry(3, 0, 0.002 * diff) //Changing Perspective along X Axis
..rotateX(1.309); //Rotating Shadow along X Axis
return Stack(
fit: StackFit.expand,
alignment: FractionalOffset.center,
children: [
Transform.translate(
offset: const Offset(0.0, -47.5),
child: Transform(
transform: pvMatrix,
alignment: FractionalOffset.center,
child: Container(
decoration: BoxDecoration(boxShadow: [
BoxShadow(
color: Colors.grey.withOpacity(0.5),
blurRadius: 11.0,
spreadRadius: 4.0,
offset: const Offset(
13.0, 35.0), // shadow direction: bottom right
)
]),
child: Image.asset(
"assets/images/image_${number.toInt() + 1}.jpg",
fit: BoxFit.fill),
),
),
),
],
);
}
}
I'm following this speed code tutorial(https://www.youtube.com/watch?v=KO_PYJKHglo) and I'm facing some problems during somewhere on 6:04.
I did some typing ! and ? for any null safety related problems but nothing had changed.
import 'package:flutter/material.dart';
import 'package:secondlife_mobile/clipper.dart';
import 'package:secondlife_mobile/wave_base_painter.dart';
import 'package:secondlife_mobile/wave_color_painter.dart';
void main() {
runApp(
const MaterialApp(
debugShowCheckedModeBanner: false,
home: PlayerApp(),
),
);
}
class PlayerApp extends StatefulWidget {
const PlayerApp({super.key});
#override
State<PlayerApp> createState() => _PlayerAppState();
}
class _PlayerAppState extends State<PlayerApp> with TickerProviderStateMixin {
AnimationController? _controller;
Animation? _waveAnim;
Animation? _waveConstAmpAnim;
#override
void initState() {
super.initState();
_controller =
AnimationController(vsync: this, duration: const Duration(seconds: 20))
..addListener(() => setState(() {}));
_waveAnim = Tween<double>(begin: 1, end: 1).animate(_controller);
_waveConstAmpAnim = Tween<double>(begin: 0, end: 1).animate(
CurvedAnimation(curve: Curves.easeInSine, parent: _controller));
_controller!.forward(); //null safe 6:32
}
#override
Widget build(BuildContext context) {
final height = MediaQuery.of(context).size.height;
final width = MediaQuery.of(context).size.width;
return Scaffold(
body: Stack(
children: <Widget>[
Positioned(
height: height,
width: width,
child: Material(
elevation: 16,
color: const Color(0xFFd6dde5), //Background Color
borderRadius: BorderRadius.circular(20),
child: Padding(
padding: const EdgeInsets.symmetric(
horizontal: 30.0,
),
child: Column(
children: <Widget>[
const SizedBox(
height: 90,
),
const Text(
'Music title',
),
const SizedBox(
height: 15,
),
const Text(
'Music artist',
),
const SizedBox(
height: 75,
),
buildRecordPlayer(),
const SizedBox(
height: 60,
),
Row(
children: <Widget>[
const Text('time'),
const SizedBox(
width: 8,
),
buildWave(width),
const SizedBox(
width: 8,
),
const Text('end'),
],
)
],
),
),
),
)
],
),
);
}
Widget buildRecordPlayer() {
return Container(
height: 270,
width: 270,
alignment: Alignment.center,
decoration: const BoxDecoration(
image: DecorationImage(
image: AssetImage('assets/images/vinyl.png'),
fit: BoxFit.fitHeight,
colorFilter: ColorFilter.mode(
Colors.blue,
BlendMode.color,
),
),
shape: BoxShape.circle,
),
child: ClipOval(
child: Image.asset(
'assets/images/SL.png',
height: 165,
width: 165,
fit: BoxFit.fill,
),
),
);
}
Widget buildWave(double width) {
return SizedBox(
width: 260 * _waveAnim.value,
height: 40,
child: CustomPaint(
painter: WaveBasePainter(),
child: ClipRect(
clipper: WaveClipper(_waveConstAmpAnim.value * width),
child: CustomPaint(
painter: WaveBasePainter(),
foregroundPainter: WaveColorPainter(_waveAnim),
),
),
),
);
}
}
And this is how my vscode looks like right now. I would be grateful if I could get rid of this error.
I'm using SizeTransition to animate the width of a container.
This container is supposed to have rounded corners.
The problem is that the rounded corners only work when the sizeTransition is completed. If it is not completed, they remain square (as is shown in the gif below).
My code:
class DemoPage extends StatefulWidget {
const DemoPage({Key? key}) : super(key: key);
#override
State<DemoPage> createState() => _DemoPageState();
}
class _DemoPageState extends State<DemoPage>
with SingleTickerProviderStateMixin {
late AnimationController _controller;
#override
void initState() {
super.initState();
_controller =
AnimationController(duration: const Duration(seconds: 5), vsync: this);
}
#override
void dispose() {
super.dispose();
_controller.dispose();
}
#override
Widget build(BuildContext context) {
return Scaffold(
body: Container(
constraints: const BoxConstraints.expand(),
color: Colors.black,
child: Center(
child: Column(
children: [
const SizedBox(height: 100),
Stack(
alignment: Alignment.centerLeft,
children: [
Container(
width: 300,
height: 20,
decoration: BoxDecoration(
color: const Color(0XFFC41D3D).withOpacity(0.5),
borderRadius:
const BorderRadius.all(Radius.circular(15))),
),
SizeTransition(
axis: Axis.horizontal,
sizeFactor: Tween(begin: 0.0, end: 1.0)
.chain(CurveTween(curve: const Interval(0.0, 0.4)))
.animate(_controller),
/// the container whose border radius is not working as expected
child: Container(
width: 300,
height: 20,
decoration: BoxDecoration(
color: const Color(0XFFC41D3D),
borderRadius: BorderRadius.circular(15.0)),
),
),
],
),
],
),
),
),
floatingActionButton: FloatingActionButton(
onPressed: () {
_controller.repeat();
},
child: const Icon(Icons.play_arrow),
),
);
}
}
What should I do to solve the problem?
You can Wrap your stack widget and change its clipBehavior,Try this:
Container(
color: Colors.black,
constraints: const BoxConstraints.expand(),
child: Center(
child: Column(
children: [
const SizedBox(height: 100),
Container( // add this.
clipBehavior: Clip.antiAlias,
decoration:
BoxDecoration(borderRadius: BorderRadius.circular(15.0)),
child: Stack(
alignment: Alignment.centerLeft,
children: [
Container(
width: 300,
height: 20,
decoration: BoxDecoration(
color: const Color(0XFFC41D3D).withOpacity(0.5),
borderRadius:
const BorderRadius.all(Radius.circular(15))),
),
SizeTransition(
axis: Axis.horizontal,
sizeFactor: Tween(begin: 0.0, end: 1.0)
.chain(CurveTween(curve: const Interval(0.0, 0.4)))
.animate(_controller),
/// the container whose border radius is not working as expected
child: Container(
width: 300,
height: 20,
decoration: BoxDecoration(
color: const Color(0XFFC41D3D),
borderRadius: BorderRadius.circular(15.0)),
),
),
],
),
),
],
),
),
)
You can just wrap SizeTransition with ClipRRect which provide more realistic shape.
ClipRRect(
borderRadius: BorderRadius.circular(15.0),
child: SizeTransition(
I am working on Flutter application and I want to the functionality of toolbox. Drag and drop the elements from left panel to right panel. Currently I can drag drop element from left to right but the issue is once the element is dropped anywhere in the right panel I cannot drag drop it further in the same panel i.e. right. I want to change the location of dropped element but cannot do so. It remain there where is dropped it.
This is me code.
#override
Widget build(BuildContext context) {
// TODO: implement build
return Scaffold(
drawer: DrawerWidget(),
appBar: AppBar(
backgroundColor: Colors.white,
title: Text(
'Table Layout',
style: Theme.of(context).textTheme.title.merge(
TextStyle(letterSpacing: 1.3),
),
),
centerTitle: true,
elevation: 0,
),
body: Container(
child: Row(
children: [
Container(
color: Colors.blue[100],
width: MediaQuery.of(context).size.width * 0.30,
child: ListView.separated(
padding: const EdgeInsets.all(16.0),
itemCount: 3,
separatorBuilder: (context, index) {
return const SizedBox(
height: 12.0,
);
},
itemBuilder: (context, index) {
return MenuListItem(
photoProvider: images[index],
);
},
),
),
Expanded(
child: Container(
color: Colors.blue[200],
alignment: Alignment.center,
child: Padding(
padding: const EdgeInsets.symmetric(
horizontal: 6.0,
),
child: Container(
height: double.infinity,
width: double.infinity,
color: Colors.grey,
child: DragTarget(
builder: (context, candidateItems, rejectedItems) {
return Container();
},
onAccept: (item) {
return Container(
height: 100,
width: 100,
color: Colors.pink,
);
},
),
),
),
),
),
],
),
),
);
}
}
class MenuListItem extends StatelessWidget {
MenuListItem({
Key key,
#required this.photoProvider,
this.isDepressed = false,
}) : super(key: key);
final String photoProvider;
final bool isDepressed;
final GlobalKey _draggableKey = GlobalKey();
#override
Widget build(BuildContext context) {
return Draggable(
dragAnchor: DragAnchor.pointer,
feedback: DraggingListItem(
dragKey: _draggableKey,
photoProvider: photoProvider,
),
child: Material(
elevation: 12.0,
borderRadius: BorderRadius.circular(20),
child: Padding(
padding: const EdgeInsets.all(12.0),
child: ClipRRect(
borderRadius: BorderRadius.circular(12.0),
child: SizedBox(
width: 120,
height: 120,
child: Center(
child: AnimatedContainer(
duration: const Duration(milliseconds: 100),
curve: Curves.easeInOut,
height: isDepressed ? 115 : 120,
width: isDepressed ? 115 : 120,
child: Image.asset(
photoProvider,
fit: BoxFit.cover,
),
),
),
),
),
),
),
);
}
}
Can anyone help me how to achieve drag drop like I want. Thanks
I do not know what is wrong with this image loading inside the slider , also I thought this has something to do with the debug but the release version has the same problem, overall all the pictures load slowly and have some delay but this problem is worse.
Container(
margin: EdgeInsets.only(top: Platform.isAndroid ? 85.0 : 115.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
CarouselSlider(
aspectRatio: 1.1,
viewportFraction: 0.6,
initialPage: 0,
enlargeCenterPage: true,
reverse: false,
autoPlay: false,
enableInfiniteScroll: false,
scrollDirection: Axis.horizontal,
onPageChanged: (index) {
if (!mounted) return;
setState(() {
_current = index;
SystemChrome.setEnabledSystemUIOverlays(
[SystemUiOverlay.bottom]);
});
},
items: [
slides("words", "assets/images/Academic_Words.jpg", "Academic\n Words", MyAppWords()),
slides("writing", "assets/images/writing.jpg", "Academic\n Writing", MyAppWriting()),
slides("conference", "assets/images/conference.jpg", "Academic\nConference", EnterPhone()),
slides("conversation", "assets/images/conversations.jpg", "Academic\nConversations", null),
slides("correspondence", "assets/images/correspondence.jpg", "Academic\nCorrespondence", MyAppCorrespondence()),
].map((imgUrl) {
return Builder(
builder: (BuildContext context) {
return Container(
width: MediaQuery.of(context).size.width,
alignment: Alignment.center,
margin: EdgeInsets.symmetric(
vertical: 20.0, horizontal: 9.0),
decoration: BoxDecoration(
borderRadius:
BorderRadius.circular(48.0),
boxShadow: [
BoxShadow(
color:
Color.fromRGBO(50, 50, 50, 1),
blurRadius: 5.0,
// has the effect of softening the shadow
spreadRadius: 5.0,
// has the effect of extending the shadow
offset: Offset(
-1.0,
// horizontal, move right 10
8.0, //
// vertical, move down 10
),
)
]),
child: ClipRRect(
borderRadius: BorderRadius.circular(48.0),
child: imgUrl,
));
},
);
}).toList()),
]),
decoration: BoxDecoration(
borderRadius:
BorderRadius.vertical(top: Radius.circular(48.0)),
color: Color.fromRGBO(237, 237, 237, 1),
),
),
]);
},
));
}
slides(String _tag,String _asset, String _title, Widget myF ){
return GestureDetector(
child: Stack(
fit: StackFit.expand,
alignment: Alignment.center,
children: <Widget>[
Hero(
tag: _tag,
child: Image.asset(
_asset,
fit: BoxFit.cover,
),
),
Container(
decoration: BoxDecoration(
gradient: LinearGradient(
colors: [
Colors.black45,
Colors.black54
],
begin: Alignment.topLeft,
end: Alignment.bottomRight
),
),
),
Container(
alignment: Alignment.center,
child: Text(
_title,
style: TextStyle(
fontSize: 20,
color: Colors.white,
fontWeight: FontWeight.w400,
fontFamily: "Raleway"),
),
)
],
),
onTap: () => Navigator.push(context,
MaterialPageRoute(
builder: (BuildContext context) {
return myF;
})),
);
}
here is a demonstration of my problem=> http://uupload.ir/view/k2ub_video_2019-10-22_10-14-47.mp4/
The behavior seems to be caused by the scaling of the large image. Since carousel_slider: 2.0.0, it's recommended to pass CarouselOptions to options - wherein you can define either the height or aspect ratio for the carousel items.