**activity_main.
xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:id="@+id/main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center"
tools:context=".MainActivity">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Tempreture Sensor"
android:textAlignment="center"
android:textSize="30dp"/>
<TextView
android:id="@+id/tvTemp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20dp"
android:text="Tempreture=" />
</LinearLayout>
**MainActivity.java
package com.example.tempsensorapp;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.widget.TextView;
import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;
public class MainActivity extends AppCompatActivity implements SensorEventListener {
TextView tvTemp;
SensorManager sMgr;
Sensor sTemp;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tvTemp=findViewById(R.id.tvTemp);
sMgr= (SensorManager) getSystemService(SENSOR_SERVICE);
sTemp=sMgr.getDefaultSensor(Sensor.TYPE_AMBIENT_TEMPERATURE);
}
@Override
protected void onPause() {
super.onPause();
sMgr.unregisterListener(this,sTemp);
@Override
protected void onResume() {
super.onResume();
sMgr.registerListener(this,sTemp,SensorManager.SENSOR_DELAY_NORMAL);
}
@Override
public void onSensorChanged(SensorEvent sensorEvent) {
if(sensorEvent.sensor.getType()==Sensor.TYPE_AMBIENT_TEMPERATURE)
{
tvTemp.setText("Tempreture="+sensorEvent.values[0]+"°C");
}
}
@Override
public void onAccuracyChanged(Sensor sensor, int i) {
}
}
**output
