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114 changes: 114 additions & 0 deletions
114
app/src/main/java/com/futo/platformplayer/AdvancedOrientationListener.kt
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| @@ -0,0 +1,114 @@ | ||
| import android.app.Activity | ||
| import android.content.Context | ||
| import android.content.pm.ActivityInfo | ||
| import android.hardware.Sensor | ||
| import android.hardware.SensorEvent | ||
| import android.hardware.SensorEventListener | ||
| import android.hardware.SensorManager | ||
| import com.futo.platformplayer.constructs.Event1 | ||
| import com.futo.platformplayer.logging.Logger | ||
| import kotlinx.coroutines.CoroutineScope | ||
| import kotlinx.coroutines.Dispatchers | ||
| import kotlinx.coroutines.delay | ||
| import kotlinx.coroutines.launch | ||
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| class AdvancedOrientationListener(private val activity: Activity, private val lifecycleScope: CoroutineScope) { | ||
| private val sensorManager: SensorManager = activity.getSystemService(Context.SENSOR_SERVICE) as SensorManager | ||
| private val accelerometer: Sensor? = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER) | ||
| private val magnetometer: Sensor? = sensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD) | ||
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| private var lastOrientation: Int = ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED | ||
| private var lastStableOrientation: Int = ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED | ||
| private var lastOrientationChangeTime = 0L | ||
| private val debounceTime = 200L | ||
| private val stabilityThresholdTime = 800L | ||
| private var deviceAspectRatio: Float = 1.0f | ||
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| private val gravity = FloatArray(3) | ||
| private val geomagnetic = FloatArray(3) | ||
| private val rotationMatrix = FloatArray(9) | ||
| private val orientationAngles = FloatArray(3) | ||
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| val onOrientationChanged = Event1<Int>() | ||
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| private val sensorListener = object : SensorEventListener { | ||
| override fun onSensorChanged(event: SensorEvent) { | ||
| when (event.sensor.type) { | ||
| Sensor.TYPE_ACCELEROMETER -> { | ||
| System.arraycopy(event.values, 0, gravity, 0, gravity.size) | ||
| } | ||
| Sensor.TYPE_MAGNETIC_FIELD -> { | ||
| System.arraycopy(event.values, 0, geomagnetic, 0, geomagnetic.size) | ||
| } | ||
| } | ||
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| if (gravity.isNotEmpty() && geomagnetic.isNotEmpty()) { | ||
| val success = SensorManager.getRotationMatrix(rotationMatrix, null, gravity, geomagnetic) | ||
| if (success) { | ||
| SensorManager.getOrientation(rotationMatrix, orientationAngles) | ||
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| val azimuth = Math.toDegrees(orientationAngles[0].toDouble()).toFloat() | ||
| val pitch = Math.toDegrees(orientationAngles[1].toDouble()).toFloat() | ||
| val roll = Math.toDegrees(orientationAngles[2].toDouble()).toFloat() | ||
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| val newOrientation = when { | ||
| roll in -155f .. -15f && isWithinThreshold(pitch, 0f, 30.0) -> { | ||
| ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE | ||
| } | ||
| roll in 15f .. 155f && isWithinThreshold(pitch, 0f, 30.0) -> { | ||
| ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE | ||
| } | ||
| isWithinThreshold(pitch, -90f, 30.0 * deviceAspectRatio) && roll in -15f .. 15f -> { | ||
| ActivityInfo.SCREEN_ORIENTATION_PORTRAIT | ||
| } | ||
| isWithinThreshold(pitch, 90f, 30.0 * deviceAspectRatio) && roll in -15f .. 15f -> { | ||
| ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT | ||
| } | ||
| else -> lastOrientation | ||
| } | ||
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| //Logger.i("AdvancedOrientationListener", "newOrientation = ${newOrientation}, roll = ${roll}, pitch = ${pitch}, azimuth = ${azimuth}") | ||
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| if (newOrientation != lastStableOrientation) { | ||
| val currentTime = System.currentTimeMillis() | ||
| if (currentTime - lastOrientationChangeTime > debounceTime) { | ||
| lastOrientationChangeTime = currentTime | ||
| lastStableOrientation = newOrientation | ||
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| lifecycleScope.launch(Dispatchers.Main) { | ||
| delay(stabilityThresholdTime) | ||
| if (newOrientation == lastStableOrientation) { | ||
| lastOrientation = newOrientation | ||
| onOrientationChanged.emit(newOrientation) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| override fun onAccuracyChanged(sensor: Sensor?, accuracy: Int) {} | ||
| } | ||
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| private fun isWithinThreshold(value: Float, target: Float, threshold: Double): Boolean { | ||
| return Math.abs(value - target) <= threshold | ||
| } | ||
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| init { | ||
| sensorManager.registerListener(sensorListener, accelerometer, SensorManager.SENSOR_DELAY_GAME) | ||
| sensorManager.registerListener(sensorListener, magnetometer, SensorManager.SENSOR_DELAY_GAME) | ||
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| val metrics = activity.resources.displayMetrics | ||
| deviceAspectRatio = (metrics.heightPixels.toFloat() / metrics.widthPixels.toFloat()) | ||
| if (deviceAspectRatio == 0.0f) | ||
| deviceAspectRatio = 1.0f | ||
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| lastOrientation = activity.resources.configuration.orientation | ||
| } | ||
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| fun stopListening() { | ||
| sensorManager.unregisterListener(sensorListener) | ||
| } | ||
| } |
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