2025年Android开发趋势全景解读

    val devicePosture = LocalDevicePosture.current

    val columns = when {
    devicePosture.isBookOpened -> 4  // 折叠屏展开状态
    devicePosture.isSeparating -> 2  // 半折叠状态
    else -> 1                        // 手机模式
    }
    LazyVerticalGrid(columns = columns) { ... }

    val hingeAngle by LocalHingeAngle.current

    AnimatedVisibility(
    visible = hingeAngle > 90,
    enter = slideInHorizontally { it } + fadeIn(),
    exit = slideOutHorizontally { -it } + fadeOut()
    ) { SecondaryScreen() }

    val segmenter = ImageSegmenter.create(clientOptions)

    cameraExecutor.execute {
    val bitmap = imageProxy.toBitmap()
    val mask = segmenter.process(bitmap).getMask()
    Canvas(composeView).drawBitmap(mask, 0f, 0f, null)
    }

    val ttsClient = TextToSpeech.createClient(context)

    ttsClient.speak("欢迎使用本应用", VoiceParams(pitch=0.8, speed=1.2)) 

    @Composable

    fun PaymentButton() {
    val authResult = rememberBiometricAuth()
    Button(onClick = { authResult.authenticate() }) {
        Text("支付验证")
    }
    }

    // Flutter端
    final androidChannel = MethodChannel('com.example/bridge');
    void getBatteryLevel() async {
      final result = await androidChannel.invokeMethod('getBattery');
      print('当前电量：$result%'); 
    }
    
    // Android端
    class MainActivity : FlutterActivity() {
    override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
        MethodChannel(flutterEngine.dartExecutor, "com.example/bridge").setMethodCallHandler { call, result ->
            when (call.method) {
                "getBattery" -> {
                    val bm = getSystemService(BATTERY_SERVICE) as BatteryManager
                    result.success(bm.getIntProperty(BatteryManager.BATTERY_PROPERTY_CAPACITY))
                }
            }
        }
    }
    }

    // 鸿蒙设备发现API

    DistributedDeviceManager.findDevices(
    new DeviceFilter(DeviceType.CAR, DeviceRange.NEARBY),
    discoveryCallback
    );

    【高级Android车机开发工程师】
    职责：
    - 基于AAOS开发仪表盘与中控双屏联动系统
    - 集成ADAS数据实现HUD动态导航
    - 优化车载娱乐系统冷启动速度至<1.5s
    
    要求：
    - 熟悉CarHardwareManager获取车辆CAN总线数据
    - 掌握车载多屏协同开发框架
    - 有Jetpack Compose车载模式开发经验

    // 获取车辆实时数据
    val carInfo = CarHardwareManager.getVehicleData(
    CarSensorManager.SPEED,
    CarSensorManager.STEERING_ANGLE
    )
    
    // HUD投影控制
    HudRenderer.drawNavigationArrow(
    direction = 45.degrees, 
    distance = 200.meters
    )
    
    // 驾驶模式自动切换
    if (carInfo.speed > 80) {
    Activity.recreate() // 切换简化驾驶模式界面
    }

    // 鸿蒙车机多设备协同
    Component carComponent = new Component.Builder()
    .addDeviceType(DeviceType.CAR)
    .addAbility("导航控制")
    .build();
    
    DistributedScheduler.scheduleTask(
    carComponent,
    new TaskConfig.Builder()
        .setTriggerCondition(SpeedTrigger(80, Comparison.GREATER))
        .setAction(this::switchToDrivingMode)
        .build()
    );