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import 'dart:developer';
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import 'dart:io';
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import 'package:flutter/material.dart' as material;
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import 'package:flutter/src/widgets/navigator.dart';
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import 'package:flutter/src/widgets/routes.dart';
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import 'package:flutter/src/widgets/framework.dart';
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class MyWillPopScope extends StatefulWidget {
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const MyWillPopScope({
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super.key,
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required this.child,
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required this.onWillPop,
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});
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final Widget child;
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final WillPopCallback onWillPop;
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@override
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State<MyWillPopScope> createState() => _WillPopScopeState();
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}
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class _WillPopScopeState extends State<MyWillPopScope> {
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double startDx = 0;
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double endDx = 0;
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@override
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Widget build(BuildContext context) {
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if (Platform.isIOS) {
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return material.Listener(
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onPointerUp: (details) async {
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bool safe1 = startDx < 30;
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bool safe2 = endDx < 30;
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log(
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"\n按下手指位置(${safe1 ? '安全区' : '非安全区'}) => $startDx"
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"\n手指抬起位置(${safe2 ? '安全区' : '非安全区'}) => $endDx",
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name: "WillPopScope",
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);
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// 左侧滑动、安全区
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if ((endDx > startDx) && safe1 && !safe2) {
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log("ios左侧滑动返回被拦截$endDx", name: "WillPopScope");
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widget.onWillPop();
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}
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},
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onPointerDown: (details) => startDx = details.localPosition.dx,
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onPointerMove: (details) => endDx = details.localPosition.dx,
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child: material.WillPopScope(
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child: widget.child,
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onWillPop: () async => false,
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),
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);
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} else {
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widget.onWillPop().then((value) {
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log(value ? "android触发滑动返回" : "android滑动返回被拦截", name: "WillPopScope");
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});
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return material.WillPopScope(
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onWillPop: widget.onWillPop,
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child: widget.child,
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);
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}
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}
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} |
