Listing sensors on any Android device

Today we can find a countless smartphones and mobile devices.
When developing this can be a problem, because the hardware available in them, varies a lot.

In Android there is a way to list the available sensors in a device, so based on this, we can check if the sensor we need is available or create the necessary logic otherwise.

Para esto crearemos un nuevo proyecto, como blank o empty activity y dentro del MainActivity.java, colocaremos el siguiente código:
For this we will create a new project, as blank or empty activity and inside the MainActivity.java, we will place the following code:

package your.package.name.here;

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.support.v7.app.AppCompatActivity;
import android.widget.TextView;

import java.util.List;

public class MainActivity extends AppCompatActivity implements SensorEventListener {

    private SensorManager mSensorManager;
    private TextView sensor_list;

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

        sensor_list = findViewById(R.id.sensor_list);

        mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
        List mList = mSensorManager.getSensorList(Sensor.TYPE_ALL);
        sensor_list.setText("Sensors: ");

        for(int i=1; i

It is important to note that in this code a line must be replaced:
package your.package.name.here;
by the name of the package that we have chosen when creating the project.
On the other hand, the code refers to a TextView called sensor_list, this will be responsible for showing the available sensors, on the device screen.
This TextView is declared in the content_main.xml file



<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.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"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context=".MainActivity"
    tools:showIn="@layout/activity_main">

    <TextView
        android:id="@+id/sensor_list"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="8dp"
        android:text="TextView"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.174"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.077" />
</android.support.constraint.ConstraintLayout>