How to read different sensors data in your Android app? Demo using virtual sensors in Android 13 emulator

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

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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>