how to get device 's temperature in android [closed]

Question

I want to get temperature from device. but I don t know how I can do. please help me writing simple. thanks.

Toxophilite

Refer to this question: #6985896 – Moonwort

Answer 1

You can use TYPE_AMBIENT_TEMPERATURE for battery or CPU temperature. TYPE_TEMPERATURE is the depcrecated constant.

The modified version of code available at documentation should be like this:

import android.app.Activity;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;

public class TempSensorActivity extends Activity, implements SensorEventListener {
 private final SensorManager mSensorManager;
 private final Sensor mTempSensor;

 public TempSensorActivity() {
     mSensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
     mTempSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_AMBIENT_TEMPERATURE);
 }

 protected void onResume() {
     super.onResume();
     mSensorManager.registerListener(this, mTempSensor, SensorManager.SENSOR_DELAY_NORMAL);
 }

 protected void onPause() {
     super.onPause();
     mSensorManager.unregisterListener(this);
 }

 public void onAccuracyChanged(Sensor sensor, int accuracy) {
 }

 public void onSensorChanged(SensorEvent event) {
 }
}

Look at sensor documentation for more.

Leeann

This is very helpful but there's a more complete answer here: https://mcmap.net/q/833181/-how-to-measure-ambient-temperature-in-android – Henderson

Why do system return null for mSensorManager.getDefaultSensor(Sensor.TYPE_AMBIENT_TEMPERATURE) on every device that I test? Other apps display the temperature on the same device. How it is possible? For example, I use Samsung S9 and system returns null too. – Ronaldronalda

Same null problem as @PonomarenkoOleh ... any one solved this issue? – Templet