This video shows the steps to read the sensors data in your Android App. It uses the emulator and respective virtual sensors to demonstrate it for Android 13/ API 33 level.

In this video it shows the steps to read data from below type of sensors:

• TYPE_RELATIVE_HUMIDITY
• TYPE_LIGHT
• TYPE_MAGNETIC_FIELD_UNCALIBRATED
• TYPE_PRESSURE
• TYPE_AMBIENT_TEMPERATURE
• TYPE_PROXIMITY

I hope you like this video. For any questions, suggestions or appreciation please contact us at: https://programmerworld.co/contact/ or email at: programmerworld1990@gmail.com

Complete source code and other details:

package com.programmerworld.readsensorsdataapp;

import androidx.appcompat.app.AppCompatActivity;

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

public class MainActivity extends AppCompatActivity {

    private TextView textViewMagnetic,textViewTemperature, textViewProximity,
    textViewPressure, textViewLight, textViewHumidity;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        textViewHumidity = findViewById(R.id.textViewHumidity);
        textViewLight = findViewById(R.id.textViewLight);
        textViewMagnetic = findViewById(R.id.textViewMagneticField);
        textViewPressure = findViewById(R.id.textViewPressure);
        textViewTemperature = findViewById(R.id.textViewTemperature);
        textViewProximity = findViewById(R.id.textViewProximity);

        SensorManager sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);

        Sensor sensorHumidity = sensorManager.getDefaultSensor(Sensor.TYPE_RELATIVE_HUMIDITY);
        Sensor sensorLight = sensorManager.getDefaultSensor(Sensor.TYPE_LIGHT);
        Sensor sensorMagnetic = sensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD_UNCALIBRATED);
        Sensor sensorPressure = sensorManager.getDefaultSensor(Sensor.TYPE_PRESSURE);
        Sensor sensorTemperature = sensorManager.getDefaultSensor(Sensor.TYPE_AMBIENT_TEMPERATURE);
        Sensor sensorProximity = sensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);


        SensorEventListener sensorEventListenerHumidity = new SensorEventListener() {
            @Override
            public void onSensorChanged(SensorEvent sensorEvent) {
                textViewHumidity.setText("Humidity  = " + sensorEvent.values[0]);
            }
            @Override
            public void onAccuracyChanged(Sensor sensor, int i) {
            }
        };

        SensorEventListener sensorEventListenerLight = new SensorEventListener() {
            @Override
            public void onSensorChanged(SensorEvent sensorEvent) {
                textViewLight.setText("Light  = " + sensorEvent.values[0]);
            }
            @Override
            public void onAccuracyChanged(Sensor sensor, int i) {
            }
        };

        SensorEventListener sensorEventListenerPressure = new SensorEventListener() {
            @Override
            public void onSensorChanged(SensorEvent sensorEvent) {
                textViewPressure.setText("Pressure  = " + sensorEvent.values[0]);
            }
            @Override
            public void onAccuracyChanged(Sensor sensor, int i) {
            }
        };

        SensorEventListener sensorEventListenerMagnetic = new SensorEventListener() {
            @Override
            public void onSensorChanged(SensorEvent sensorEvent) {
                textViewMagnetic.setText("Magnetic  = " + sensorEvent.values[0]);
            }
            @Override
            public void onAccuracyChanged(Sensor sensor, int i) {
            }
        };

        SensorEventListener sensorEventListenerProximity = new SensorEventListener() {
            @Override
            public void onSensorChanged(SensorEvent sensorEvent) {
                textViewProximity.setText("Proximity  = " + sensorEvent.values[0]);
            }
            @Override
            public void onAccuracyChanged(Sensor sensor, int i) {
            }
        };

        SensorEventListener sensorEventListenerTemperature = new SensorEventListener() {
            @Override
            public void onSensorChanged(SensorEvent sensorEvent) {
                textViewTemperature.setText("Ambient Temperature  = " + sensorEvent.values[0]);
            }
            @Override
            public void onAccuracyChanged(Sensor sensor, int i) {
            }
        };
        
        sensorManager.registerListener(sensorEventListenerHumidity, sensorHumidity, SensorManager.SENSOR_DELAY_NORMAL);
        sensorManager.registerListener(sensorEventListenerLight, sensorLight, SensorManager.SENSOR_DELAY_NORMAL);
        sensorManager.registerListener(sensorEventListenerPressure, sensorPressure, SensorManager.SENSOR_DELAY_NORMAL);
        sensorManager.registerListener(sensorEventListenerProximity, sensorProximity, SensorManager.SENSOR_DELAY_NORMAL);
        sensorManager.registerListener(sensorEventListenerMagnetic, sensorMagnetic, SensorManager.SENSOR_DELAY_NORMAL);
        sensorManager.registerListener(sensorEventListenerTemperature, sensorTemperature, SensorManager.SENSOR_DELAY_NORMAL);
    }
}

<?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/textViewTemperature"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Ambient Temperature"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.41"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.049" />

    <TextView
        android:id="@+id/textViewMagneticField"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="124dp"
        android:layout_marginTop="28dp"
        android:text="Magnetic Field"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textViewTemperature" />

    <TextView
        android:id="@+id/textViewProximity"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="124dp"
        android:layout_marginTop="36dp"
        android:text="Proximity"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textViewMagneticField" />

    <TextView
        android:id="@+id/textViewPressure"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="112dp"
        android:layout_marginTop="48dp"
        android:text="Pressure"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textViewProximity" />

    <TextView
        android:id="@+id/textViewLight"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="112dp"
        android:layout_marginTop="36dp"
        android:text="Light"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textViewPressure" />

    <TextView
        android:id="@+id/textViewHumidity"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="112dp"
        android:layout_marginTop="40dp"
        android:text="Humidity"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textViewLight" />

</androidx.constraintlayout.widget.ConstraintLayout>