52 lines
1.0 KiB
Dart
52 lines
1.0 KiB
Dart
import 'package:flutter/material.dart';
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//触摸回调组件
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class TouchCallBack extends StatefulWidget {
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//子组件
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final Widget child;
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//回调函数
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final VoidCallback onPressed;
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final bool isfeed;
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//背景色
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final Color backgroud;
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//传入参数列表
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const TouchCallBack({Key key, @required this.onPressed, this.isfeed, this.backgroud,@required this.child}) : super(key: key);
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@override
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_TouchCallBackState createState() => _TouchCallBackState();
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}
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class _TouchCallBackState extends State<TouchCallBack> {
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Color color = Colors.transparent;
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@override
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Widget build(BuildContext context) {
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return GestureDetector(
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//使用Container 包裹
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child: Container(
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color: color,
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child: widget.child,
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),
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onTap: widget.onPressed,
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onPanDown: (d){
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if(widget.isfeed == false) return;
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setState(() {
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color = widget.backgroud;
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});
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},
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onPanCancel: (){
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setState(() {
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color = Colors.transparent;
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});
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},
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);
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}
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}
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