generated from dellevin/template
51 lines
1.4 KiB
Dart
51 lines
1.4 KiB
Dart
import 'dart:async';
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import 'dart:io';
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import 'package:flutter/services.dart';
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/// 音量键翻页服务
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/// 注意：需要原生 Android 实现才能工作，当前为空操作
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class VolumeControlService {
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static const MethodChannel _methodChannel = MethodChannel(
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'mooknote/volume_control',
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);
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static bool _available = false;
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static bool _checked = false;
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static Future<void> enableInterception() async {
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if (!Platform.isAndroid) return;
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if (!_checked) await _checkAvailable();
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if (!_available) return;
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try {
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await _methodChannel.invokeMethod('enableInterception');
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} catch (_) {}
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}
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static Future<void> disableInterception() async {
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if (!Platform.isAndroid) return;
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if (!_available) return;
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try {
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await _methodChannel.invokeMethod('disableInterception');
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} catch (_) {}
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}
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static Stream<String> get volumeKeyEvents {
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if (!Platform.isAndroid || !_available) return const Stream.empty();
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// 需要原生 EventChannel 实现，当前返回空流
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return const Stream.empty();
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}
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/// 检查原生端是否实现了该 channel
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static Future<void> _checkAvailable() async {
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_checked = true;
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try {
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await _methodChannel.invokeMethod('enableInterception');
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_available = true;
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} on MissingPluginException {
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_available = false;
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} catch (_) {
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_available = false;
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}
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}
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}
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