Сенсоры в Android:Гироскоп и Акселерометр

MainActivity.java

import androidx.appcompat.app.AppCompatActivity;

import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.widget.ImageView;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {
        private SensorManager sm;
        private Sensor s;
        private ImageView im;
        private TextView tv;
        private SensorEventListener sv;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        tv = findViewById(R.id.tv);
        im = findViewById(R.id.im);
        sm = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
        if(sm !=null)s = sm.getDefaultSensor(Sensor.TYPE_ROTATION_VECTOR);
        sv = new SensorEventListener() {
            @Override
            public void onSensorChanged(SensorEvent event) {


                float[] rotationMatrix = new float[16];
                SensorManager.getRotationMatrixFromVector(
                        rotationMatrix, event.values);
                float[] remappedRotationMatrix = new float[16];
                SensorManager.remapCoordinateSystem(rotationMatrix,
                        SensorManager.AXIS_X,
                        SensorManager.AXIS_Z,
                        remappedRotationMatrix);

// Convert to orientations
                float[] orientations = new float[3];
                SensorManager.getOrientation(remappedRotationMatrix, orientations);
                for(int i = 0; i < 3; i++) {
                    orientations[i] = (float)(Math.toDegrees(orientations[i]));
                }


                tv.setText(String.valueOf((int)orientations[2]));
                im.setRotation(-orientations[2]);


            }

            @Override
            public void onAccuracyChanged(Sensor sensor, int accuracy) {

            }
        };





    }

    @Override
    protected void onResume() {
        super.onResume();
        sm.registerListener(sv,s,SensorManager.SENSOR_DELAY_FASTEST);
    }

    @Override
    protected void onPause() {
        super.onPause();
        sm.unregisterListener(sv);
    }
}

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:id="@+id/tv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="rotation"
        android:textColor="@android:color/background_dark"
        android:textSize="24sp"
        android:textStyle="bold"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.837" />

    <ImageView
        android:id="@+id/im"
        android:layout_width="300dp"
        android:layout_height="10dp"
        app:layout_constraintBottom_toTopOf="@+id/tv"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:srcCompat="@color/colorAccent" />
</androidx.constraintlayout.widget.ConstraintLayout>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="com.neco_desarrollo.rotationsensor">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity" android:screenOrientation="portrait"
            tools:ignore="LockedOrientationActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

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