Android_开发 Android传感器(加速度传感器,磁场传感器,光线传感器,方向传感器)
16lz
2021-01-23
import java.util.List;import android.app.Activity;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 Main extendsActivity implementsSensorEventListener { privateTextView tvAccelerometer; privateTextView tvMagentic; privateTextView tvLight; privateTextView tvOrientation; privateTextView tvSensors; @Override publicvoid onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // 获得SensorManager对象 SensorManager sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE); // 注册加速度传感器 sensorManager.registerListener(this, sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_FASTEST); // 注册磁场传感器 sensorManager.registerListener(this, sensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD), SensorManager.SENSOR_DELAY_FASTEST); // 注册光线传感器 sensorManager.registerListener(this, sensorManager.getDefaultSensor(Sensor.TYPE_LIGHT), SensorManager.SENSOR_DELAY_FASTEST); // 注册方向传感器 sensorManager.registerListener(this, sensorManager.getDefaultSensor(Sensor.TYPE_ORIENTATION), SensorManager.SENSOR_DELAY_FASTEST); tvAccelerometer = (TextView) findViewById(R.id.tvAccelerometer); tvMagentic = (TextView) findViewById(R.id.tvMagentic); tvLight = (TextView) findViewById(R.id.tvLight); tvOrientation = (TextView) findViewById(R.id.tvOrientation); tvSensors = (TextView) findViewById(R.id.tvSensors); // 获得当前手机支持的所有传感器 List<Sensor> sensors = sensorManager.getSensorList(Sensor.TYPE_ALL); for(Sensor sensor : sensors) { // 输出当前传感器的名称 tvSensors.append(sensor.getName() +"\n"); } } @Override publicvoid onSensorChanged(SensorEvent event) { // 通过getType方法获得当前传回数据的传感器类型 switch(event.sensor.getType()) { caseSensor.TYPE_ACCELEROMETER: // 处理加速度传感器传回的数据 String accelerometer ="加速度\n" + "X:" + event.values[0] +"\n" +"Y:" + event.values[1] +"\n" + "Z:"+ event.values[2] +"\n"; tvAccelerometer.setText(accelerometer); break; caseSensor.TYPE_LIGHT: // 处理光线传感器传回的数据 tvLight.setText("亮度:"+ event.values[0]); break; caseSensor.TYPE_MAGNETIC_FIELD: // 处理磁场传感器传回的数据 String magentic ="磁场\n" + "X:" + event.values[0] +"\n" + "Y:" + event.values[1] +"\n" + "Z:"+ event.values[2] +"\n"; tvMagentic.setText(magentic); break; caseSensor.TYPE_ORIENTATION: // 处理方向传感器传回的数据 String orientation ="方向\n" + "X:" + event.values[0] +"\n" + "Y:" + event.values[1] +"\n" + "Z:"+ event.values[2] +"\n"; tvOrientation.setText(orientation); break; } } @Override publicvoid onAccuracyChanged(Sensor sensor,int accuracy) { }}
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