Flutter-Dart Dialog的简单封装与TTS的使用

/// showDialog 不理智封装 (╯‵□′)╯︵┻━┻
static Future showConfirm({
    BuildContext context,
    String title,
    Widget content,
    String cancelText,
    String confirmText,
    Function onCancel,
    Function onConfirm,
    AlertDialog Function(BuildContext context) builder
  }) async {
  var flag = await showDialog(
    context: context,
    builder: (BuildContext context) {
      return AlertDialog(
        title: title != null && title.isNotEmpty ? Text(title) : null,
        content: content,
        actions: <Widget>[
          TextButton(
            onPressed: () => Navigator.of(context).pop(false),
            child: Text(cancelText ?? 'Cancel'),
          ),
          TextButton(
            onPressed: () => Navigator.of(context).pop(true),
            child: Text(confirmText ?? 'Confirm'),
          )
        ]
      );
    }
  );
  if (flag != null && flag) {
    onConfirm();
  } else if (onCancel != null) {
    onCancel();
  }
}

dependencies:
  flutter_tts: ^3.1.0

import 'package:flutter_tts/flutter_tts.dart';

class TTSUtil {
  TTSUtil._();
  static TTSUtil _manager;
  factory TTSUtil() {
    if (_manager == null) {
      _manager = TTSUtil._();
    }
    return _manager;
  }
  FlutterTts flutterTts;

  initTTS() {
    flutterTts = FlutterTts();
  }

  Future speak(String text) async {
    /// 设置语言
    await flutterTts.setLanguage("zh-CN");
    // 需配置中文语音包，若没有请自行下载，讯飞语音包亲测可用。
    // 本站下载地址 {root}/dart_tts_confirm/kdxf_tts.apk

    /// 设置音量
    await flutterTts.setVolume(0.8);

    /// 设置语速
    await flutterTts.setSpeechRate(0.5);

    /// 音调
    await flutterTts.setPitch(1.0);

    if (text != null) {
      if (text.isNotEmpty) {
        await _stop();
        await flutterTts.speak(text);
      }
    }
  }

  /// 暂停
  Future _pause() async {
    await flutterTts.pause();
  }

  /// 结束
  Future _stop() async {
    await flutterTts.stop();
  }
}

var Ttser = new TTSUtil();
Ttser.initTTS();

Ttser.speak('你好，世界！hello world!');