android stduio检测温湿度的代码

在Android Studio中检测温湿度的代码可以通过传感器来实现。首先，需要在AndroidManifest.xml文件中添加权限：

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

然后，在MainActivity.java中编写代码来获取温湿度传感器的数据：

package com.example.temphumiditysensor;

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

import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity implements SensorEventListener {

    private SensorManager sensorManager;
    private Sensor tempSensor;
    private Sensor humidSensor;
    private TextView tempText;
    private TextView humidText;

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

        tempText = findViewById(R.id.tempTextView);
        humidText = findViewById(R.id.humidTextView);
        sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
        tempSensor = sensorManager.getDefaultSensor(Sensor.TYPE_AMBIENT_TEMPERATURE);
        humidSensor = sensorManager.getDefaultSensor(Sensor.TYPE_RELATIVE_HUMIDITY);
    }

    @Override
    protected void onResume() {
        super.onResume();
        sensorManager.registerListener(this, tempSensor, SensorManager.SENSOR_DELAY_NORMAL);
        sensorManager.registerListener(this, humidSensor, SensorManager.SENSOR_DELAY_NORMAL);
    }

    @Override
    protected void onPause() {
        super.onPause();
        sensorManager.unregisterListener(this);
    }

    @Override
    public void onSensorChanged(SensorEvent event) {
        if (event.sensor.getType() == Sensor.TYPE_AMBIENT_TEMPERATURE) {
            float tempValue = event.values[0];
            tempText.setText("Temperature: " + tempValue + " °C");
        } else if (event.sensor.getType() == Sensor.TYPE_RELATIVE_HUMIDITY) {
            float humidValue = event.values[0];
            humidText.setText("Humidity: " + humidValue + " %");
        }
    }

    @Override
    public void onAccuracyChanged(Sensor sensor, int accuracy) {
        // Do something if accuracy changes
    }
}

在activity_main.xml中添加TextView来显示温度和湿度的数值：

<TextView
    android:id="@+id/tempTextView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Temperature: "
    android:textSize="18sp" />
<TextView
    android:id="@+id/humidTextView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Humidity: "
    android:textSize="18sp" />

通过以上代码，我们可以在Android设备上实时获取温湿度传感器的数据，并显示在界面上。