MAM lab1 main

-----------------------Main_Acitvity.kt
class MainActivity : AppCompatActivity(), SensorEventListener {

    private var currentDegree = 0f
    private var mSensorManager: SensorManager? = null
    private var accelerometer: Sensor? = null
    private var magnetometer: Sensor? = null
    private var orientation: Sensor? = null
    private var mGravity: FloatArray? = null
    private var mGeomagnetic: FloatArray? = null
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        initData()
    }
    private fun initData(){
        mSensorManager = getSystemService(Context.SENSOR_SERVICE) as SensorManager?
        accelerometer = mSensorManager?.getDefaultSensor(Sensor.TYPE_ACCELEROMETER)
        magnetometer = mSensorManager?.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD)
    }

    override fun onResume() {
        super.onResume()
        mSensorManager?.registerListener(this, accelerometer, SensorManager.SENSOR_DELAY_GAME)
        mSensorManager?.registerListener(this, magnetometer, SensorManager.SENSOR_DELAY_GAME)
        mGravity = floatArrayOf()
        mGeomagnetic = floatArrayOf()
    }
    override fun onSensorChanged(event: SensorEvent?) {

        if(event?.sensor?.type == Sensor.TYPE_ACCELEROMETER){
            mGravity = event.values
            val accelerometerText = findViewById<TextView>(R.id.accelerometerText)
            accelerometerText.text = '('+(Math.round((event.values?.get(0)!!) * 10).toDouble()/10).toString()+','+(Math.round((event.values?.get(1)!!) * 10).toDouble()/10).toString()+','+(Math.round((event.values?.get(2)!!) * 10).toDouble()/10).toString()+')'
            val hexText = findViewById<TextView>(R.id.hexText)
            val hex = String.format("#%02x%02x%02x", abs(((((event.values?.get(0)!!) * 10).toDouble()/10)*20).toInt()), abs(((((event.values?.get(1)!!) * 10).toDouble()/10)*20).toInt()), abs(((((event.values?.get(0)!!) * 10).toDouble()/10)*20).toInt()))
            hexText.text = hex.toString()
            val view = findViewById<View>(R.id.viewColor)
            view.setBackgroundColor(Color.parseColor(hex))
        }

        if(event?.sensor?.type == Sensor.TYPE_MAGNETIC_FIELD){
            mGeomagnetic = event.values
        }

        if (mGravity!!.isNotEmpty() && mGeomagnetic!!.isNotEmpty()) {
            val r = FloatArray(9)
            val i = FloatArray(9)
            val success = SensorManager.getRotationMatrix(r, i, mGravity, mGeomagnetic)
            if (success) {
                val orientation = FloatArray(3) // orientation contains: azimuth, pitch and roll
                SensorManager.getOrientation(r, orientation)
                val orientationText = findViewById<TextView>(R.id.orientationText)
                orientationText.text = ((Math.toDegrees( orientation[0].toDouble() ) + 360 ) % 360).roundToInt().toString()+'°'

            }
        }


    }

    override fun onAccuracyChanged(p0: Sensor?, p1: Int) {
    }

    override fun onPause() {
        super.onPause()
        mSensorManager!!.unregisterListener(this)
    }
}
-------------------------Activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Akcelelometr"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintHorizontal_bias="0.131"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.056" />

    <TextView
        android:id="@+id/accelerometerText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="0.0"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintHorizontal_bias="0.194"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.094" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Orientacja"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintHorizontal_bias="0.832"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.056" />

    <TextView
        android:id="@+id/orientationText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="0.0"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintHorizontal_bias="0.797"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.094" />

    <TextView
        android:id="@+id/hexText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="#e7eecc"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintHorizontal_bias="0.498"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.198" />

    <View android:id="@+id/viewColor"
            android:layout_width="0dp"
            android:layout_height="0dp"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintDimensionRatio="10:10"

        />

</androidx.constraintlayout.widget.ConstraintLayout>