在Flutter中自定义窗口小部件的点击效果 [英] Customize the click effect of a widget in Flutter
本文介绍了在Flutter中自定义窗口小部件的点击效果的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
如何在Flutter中自定义窗口小部件的点击效果,可以在Android中对其进行配置:
How to customize the click effect of a widget in Flutter, which can be configured in Android:
<?xml version="1.0" encoding="UTF-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"
android:drawable="@drawable/btn_pressed"
/>
<!-- pressed -->
<item android:state_focused="true"
android:drawable="@drawable/btn_normal"
/>
<!-- focused -->
<item android:drawable="@drawable/btn_normal"
/>
<!-- default -->
</selector>
我想问一下如何在Flutter中实现它.谢谢!
推荐答案
使用此功能,您可以自定义点击效果
Using this you can do custom click effect
import 'package:flutter/material.dart';
void main() {
runApp(MaterialApp(
title: 'My App',
home: MyApp(),
));
}
class MyApp extends StatefulWidget {
@override
State<StatefulWidget> createState() {
return MyAppState();
}
}
class MyAppState extends State<MyApp> {
bool isTapped = false;
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('My App'),
),
body: Center(
child: GestureDetector(
onTapDown: (value) {
setState(() {
print('onTapDown');
isTapped = true;
});
},
onTapUp: (value) {
setState(() {
print('onTapUp');
isTapped = false;
});
},
onTapCancel: () {
setState(() {
print('onTapCancel');
isTapped = false;
});
},
child: _getImage(),
),
),
);
}
Widget _getImage() {
AssetImage image = AssetImage('images/icon.png');
return Image(
image: image,
width: 100.0,
height: 100.0,
color: isTapped ? Colors.deepOrangeAccent : Colors.orange,
);
}
}
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