97 lines
3.2 KiB
Dart
97 lines
3.2 KiB
Dart
import 'dart:io';
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import 'dart:math';
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import 'package:device_info_plus/device_info_plus.dart';
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import 'package:flutter/material.dart';
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/// Service for detecting if the app is running on Android TV
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class TvDetectionService {
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static TvDetectionService? _instance;
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bool _isTV = false;
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bool _initialized = false;
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TvDetectionService._();
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/// Get the singleton instance, initializing if needed
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static Future<TvDetectionService> getInstance() async {
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if (_instance == null) {
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_instance = TvDetectionService._();
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await _instance!._detect();
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}
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return _instance!;
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}
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Future<void> _detect() async {
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if (_initialized) return;
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if (Platform.isAndroid) {
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final deviceInfo = DeviceInfoPlugin();
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final androidInfo = await deviceInfo.androidInfo;
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// Check for android.software.leanback feature (standard Android TV detection)
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_isTV = androidInfo.systemFeatures.contains('android.software.leanback');
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}
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_initialized = true;
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}
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bool get isTV => _isTV;
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/// Synchronous access after initialization (returns false if not initialized)
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static bool isTVSync() => _instance?._isTV ?? false;
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}
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/// Utility class for platform detection
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class PlatformDetector {
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/// Detects if running on Android TV (requires TvDetectionService to be initialized)
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static bool isTV() {
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return TvDetectionService.isTVSync();
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}
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/// Detects if the app should use side navigation (Desktop or TV)
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static bool shouldUseSideNavigation(BuildContext context) {
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return isDesktop(context) || isTV();
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}
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/// Whether this device should act as a companion remote host (receiver).
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/// Desktop platforms and Android TV are hosts; phones/tablets are controllers.
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static bool shouldActAsRemoteHost(BuildContext context) {
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return isDesktop(context) || isTV();
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}
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/// Detects if running on a mobile platform (iOS or Android)
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/// Uses Theme for consistent platform detection across the app
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static bool isMobile(BuildContext context) {
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final platform = Theme.of(context).platform;
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return platform == TargetPlatform.iOS || platform == TargetPlatform.android;
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}
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/// Detects if running on a handheld mobile device (phone or tablet, not TV).
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static bool isHandheld(BuildContext context) {
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return isMobile(context) && !isTV();
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}
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/// Detects if running on a desktop platform (Windows, macOS, or Linux)
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static bool isDesktop(BuildContext context) {
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return !isMobile(context);
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}
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/// Detects if the device is likely a tablet based on screen size
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/// Uses diagonal screen size to determine if device is a tablet
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static bool isTablet(BuildContext context) {
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final data = MediaQuery.of(context);
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final size = data.size;
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final diagonal = sqrt(size.width * size.width + size.height * size.height);
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final devicePixelRatio = data.devicePixelRatio;
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// Convert diagonal from logical pixels to inches (assuming 160 DPI as baseline)
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final diagonalInches = diagonal / (devicePixelRatio * 160 / 2.54);
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// Consider devices with diagonal >= 7 inches as tablets
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return diagonalInches >= 7.0;
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}
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/// Detects if the device is a phone (mobile but not tablet)
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static bool isPhone(BuildContext context) {
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return isHandheld(context) && !isTablet(context);
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}
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}
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