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)
时间:2023-10-14 10:07:02
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);
// 注册加速传感器
sensorManager.registerListener(this,
sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),
SensorManager.SENSOR_DELAY_FASTEST);
// 磁场传感器注册
sensorManager.registerListener(this,
sensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD),
SensorManager.SENSOR_DELAY_FASTEST);
// 注册光传感器
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);
// 所有获得当前手机支持的传感器
Listsensors = 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获取当前传回数据传感器类型的方法
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: // 处理光传感器传回的数据
tvLight.setText("亮度:" event.values[0]);
break;
caseSensor.TYPE_MAGNETIC_FIELD: // 磁场传感器传回的数据处理
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: // 传感器传回的数据处理方向
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) {
}
}