Flutter Dialog Toast 弹窗

AlertDialog

showDialog(
  barrierDismissible, //点击遮罩背景是否关闭弹窗
  context: context,
  builder: (context) {
    return AlertDialog(
      title: const Text('Alert弹窗'),
      content: const Text('Alert弹窗内容'),
      actions: [
        TextButton(
          onPressed: () {
            Navigator.of(context).pop();//关闭弹窗
          },
          child: const Text('按钮'),
        )
      ],
    );
  },
);

获取点击按钮回调，使用 async-await,关闭弹窗时在pop方法中传入回调参数

void _showDialog() async {
    var result = await showDialog(
      context: context,
      builder: (context) {
        return AlertDialog(
          title: const Text('Alert弹窗'),
          content: const Text('Alert弹窗内容'),
          actions: [
            TextButton(
              onPressed: () {
                //关闭弹窗，并传递回调参数
                Navigator.pop(context，'确认');
              },
              child: const Text('按钮'),
            )
          ],
        );
      },
    );
    print(result); //关闭弹窗时传的参数'确认'
  }

SimpleDialog

Select弹窗 用SimpleDialog生成select选项

List<String> prolist = ['手机', '笔记本', '汽车', '家具'];
showDialog(
  barrierDismissible: true, //点击遮罩背景是否关闭弹窗
  context: context,
  builder: (context) {
    return SimpleDialog(
      children: prolist.map((pro) {
        return SimpleDialogOption(
          onPressed: () {
            Navigator.pop(context);
          },
          child: Text(pro),
        );
      }).toList(),
    );
  },
);

ActionSheet 底部弹窗

showModalBottomSheet(
  context: context,
  backgroundColor: Colors.white,
  shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(5)),
  builder: (context) {
    return Container(
      // height: 300,
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: prolist.map((pro) {
          return ListTile(
              title: Text(pro),
              onTap: () {
                Navigator.pop(context);
              });
        }).toList(),
      ),
    );
  },
);

Toast

使用fluttertoas插件

import 'package:fluttertoast/fluttertoast.dart';

Fluttertoast.showToast(
     msg: "This is Center Short Toast",
    toastLength: Toast.LENGTH_SHORT, //Android平台显示时长
    gravity: ToastGravity.CENTER,
    timeInSecForIosWeb: 1,//IOS和web平台显示时长
    backgroundColor: Colors.red,
    textColor: Colors.white,
    fontSize: 16.0,
    webBgColor: "#f00",
    webPosition: 'center',
  );