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lib/utils/navigator_utils.dart

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+import 'dart:io';
+
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+
+/// 创建人： Created by zhaolong
+/// 创建时间：Created by  on 2020/12/9.
+///
+/// 可关注公众号：我的大前端生涯   获取最新技术分享
+/// 可关注网易云课堂：https://study.163.com/instructor/1021406098.htm
+/// 可关注博客：https://blog.csdn.net/zl18603543572
+///
+
+class NavigatorUtils {
+  ///普通打开页面的方法
+  ///[context] 上下文对象
+  ///[targPage] 目标页面
+  ///[isReplace] 是否替换当前页面  A -B
+  static void pushPage({
+    BuildContext context,
+    Widget targPage,
+    bool isReplace = false,
+    Function(dynamic value) dismissCallBack,
+  }) {
+    PageRoute pageRoute;
+
+    if (Platform.isAndroid) {
+      pageRoute = MaterialPageRoute(builder: (BuildContext context) {
+        return targPage;
+      });
+    } else {
+      pageRoute = CupertinoPageRoute(builder: (BuildContext context) {
+        return targPage;
+      });
+    }
+
+    if (isReplace) {
+      Navigator.of(context).pushReplacement(pageRoute).then((value) {
+        if (dismissCallBack != null) {
+          dismissCallBack(value);
+        }
+      });
+    } else {
+      Navigator.of(context).push(pageRoute).then((value) {
+        if (dismissCallBack != null) {
+          dismissCallBack(value);
+        }
+      });
+    }
+  }
+
+  ///普通打开页面的方法
+  ///[context] 上下文对象
+  ///[targPage] 目标页面
+  ///[isReplace] 是否替换当前页面  A -B
+  ///[opaque] 是否以背景透明的方式打开页面
+  static void pushPageByFade({
+    BuildContext context,
+    Widget targPage,
+    bool isReplace = false,
+    int startMills = 400,
+    bool opaque = false,
+    Function(dynamic value) dismissCallBack,
+  }) {
+    PageRoute pageRoute = PageRouteBuilder(
+      //背景透明 方式打开新的页面
+      opaque: opaque,
+      pageBuilder: (BuildContext context, Animation<double> animation,
+          Animation<double> secondaryAnimation) {
+        return targPage;
+      },
+      transitionDuration: Duration(milliseconds: startMills),
+      //动画
+      transitionsBuilder: (BuildContext context, Animation<double> animation,
+          Animation<double> secondaryAnimation, Widget child) {
+        return FadeTransition(
+          opacity: animation,
+          child: child,
+        );
+      },
+    );
+
+    if (isReplace) {
+      Navigator.of(context).pushReplacement(pageRoute).then((value) {
+        if (dismissCallBack != null) {
+          dismissCallBack(value);
+        }
+      });
+    } else {
+      Navigator.of(context).push(pageRoute).then((value) {
+        if (dismissCallBack != null) {
+          dismissCallBack(value);
+        }
+      });
+    }
+  }
+
+  ///中间缩放的形式打开页面
+  /// 开源项目  Flutter-HO 早起的年轻人
+  /// github https://github.com/zhaolongs/flutter-ho
+  static void pushPageByCenterScale({
+    BuildContext context,
+    Widget targPage,
+    bool isReplace = false,
+    int startMills = 400,
+    int reversMills = 400,
+    bool opaque = false,
+    Function(dynamic value) dismissCallBack,
+  }) {
+    if (isReplace) {
+      Navigator.of(context)
+          .pushReplacement(
+          _createRoute(context, targPage, startMills, reversMills))
+          .then((value) {
+        if (dismissCallBack != null) {
+          dismissCallBack(value);
+        }
+      });
+    } else {
+      Navigator.of(context)
+          .push(_createRoute(context, targPage, startMills, reversMills))
+          .then((value) {
+        if (dismissCallBack != null) {
+          dismissCallBack(value);
+        }
+      });
+    }
+  }
+
+  static Route _createRoute(BuildContext parentContext, Widget targPage,
+      int startMills, int reversMills) {
+    return PageRouteBuilder<void>(
+      pageBuilder: (context, animation, secondaryAnimation) {
+        return targPage;
+      },
+      transitionDuration: Duration(milliseconds: startMills),
+      reverseTransitionDuration: Duration(milliseconds: reversMills),
+      transitionsBuilder: (context, animation, secondaryAnimation, child) {
+        var rectAnimation = _createTween(parentContext)
+            .chain(CurveTween(curve: Curves.ease))
+            .animate(animation);
+
+        return Stack(
+          children: [
+            PositionedTransition(rect: rectAnimation, child: child),
+          ],
+        );
+      },
+    );
+  }
+
+  static Tween<RelativeRect> _createTween(BuildContext context) {
+    var windowSize = MediaQuery.of(context).size;
+    var box = context.findRenderObject() as RenderBox;
+    var rect = box.localToGlobal(Offset.zero) & box.size;
+    var relativeRect = RelativeRect.fromSize(rect, windowSize);
+
+    return RelativeRectTween(
+      begin: relativeRect,
+      end: RelativeRect.fill,
+    );
+  }
+}