Flutter开发之——showGeneralDialog

发表于 2021-04-16 分类于开发， F-跨平台， Flutter 阅读时长 ≈ 1 分钟

一概述

showGeneralDialog：用于自定义提示框
当执行点击事件时，执行showGeneralDialog，pageBuilder返回用户自定义试图

二 showGeneralDialog

2.1 源代码

Future<T?> showGeneralDialog<T extends Object?>({
  required BuildContext context,
  required RoutePageBuilder pageBuilder,
  bool barrierDismissible = false,
  String? barrierLabel,
  Color barrierColor = const Color(0x80000000),
  Duration transitionDuration = const Duration(milliseconds: 200),
  RouteTransitionsBuilder? transitionBuilder,
  bool useRootNavigator = true,
  RouteSettings? routeSettings,
})

2.2 常用属性说明

属性	说明	取值
pageBuilder	自定义参数页面	RoutePageBuilder
barrierDismissible	是否可以点击背景关闭	bool
barrierColor	背景颜色	Color
transitionDuration	动画时长	Duration
transitionBuilder	构建进出动画	RouteTransitionsBuilder

三示例

代码

RaisedButton(
              child: Text("showGeneralDialog"),
              onPressed: () {
                  showGeneralDialog(
                      context: context,
                      barrierColor: Colors.black.withOpacity(.5),
                      barrierDismissible: true,
                      barrierLabel: '',
                      transitionDuration: Duration(milliseconds: 200),
                      transitionBuilder: (BuildContext context,
                          Animation<double> animation,
                          Animation<double> secondaryAnimation,
                          Widget child) {
                        return ScaleTransition(scale: animation, child: child);
                      },
                      pageBuilder: (BuildContext context,
                          Animation<double> animation,
                          Animation<double> secondaryAnimation) {
                        return Center(
                          child: Container(
                            height: 300,
                            width: 250,
                            color: Colors.lightGreenAccent,
                          ),
                        );
                      });
                })

效果图

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