android开发(27) 看看我的手机里都有什么传感器

package zyf.demo.sensordemo;

import java.util.List;

import android.hardware.Sensor;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.view.Menu;
import android.widget.TextView;

public class MainActivity extends Activity {
TextView tx1 = null;

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

tx1 = (TextView) findViewById(R.id.txt);
showIt();
}

public void showIt() {
//获得传感器管理器
SensorManager sm = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
List<Sensor> allSensors = sm.getSensorList(Sensor.TYPE_ALL);

StringBuilder sb = new StringBuilder();
// 显示有多少个传感器
sb.append("\t该手机有" + allSensors.size() + "个传感器：\n\n");

String typeName = "";
// 显示每个传感器的具体信息
for (Sensor s : allSensors) {
typeName = SensorTypeName.getSensorTypeName(s.getType());
sb.append(String.format("\t类型:%s\n", typeName));
sb.append(String.format("\t设备名称:%s\n", s.getName()));
sb.append(String.format("\t设备版本:%s\n", s.getVersion()));
sb.append(String.format("\t供应商:%s\n", s.getVendor()));
sb.append("\n");
}// end for

tx1.setText(sb.toString());
}

static class SensorTypeName {
private static String[] itsNames;

static {
itsNames = new String[20];
itsNames[0] = "未知";
itsNames[Sensor.TYPE_ACCELEROMETER] = "加速度";
itsNames[Sensor.TYPE_MAGNETIC_FIELD] = "磁力";
itsNames[Sensor.TYPE_ORIENTATION] = "方向";
itsNames[Sensor.TYPE_GYROSCOPE] = "陀螺仪";
itsNames[Sensor.TYPE_LIGHT] = "光线感应";
itsNames[Sensor.TYPE_PRESSURE] = "压力";
itsNames[Sensor.TYPE_TEMPERATURE] = "温度";
itsNames[Sensor.TYPE_PROXIMITY] = "接近,距离传感器";
itsNames[Sensor.TYPE_GRAVITY] = "重力";
itsNames[Sensor.TYPE_LINEAR_ACCELERATION] = "线性加速度";
itsNames[Sensor.TYPE_ROTATION_VECTOR] = "旋转矢量";
itsNames[Sensor.TYPE_RELATIVE_HUMIDITY] = "TYPE_RELATIVE_HUMIDITY";
itsNames[Sensor.TYPE_AMBIENT_TEMPERATURE] = "TYPE_AMBIENT_TEMPERATURE";
itsNames[13] = "TYPE_AMBIENT_TEMPERATURE";
itsNames[14] = "TYPE_MAGNETIC_FIELD_UNCALIBRATED";
//itsNames[Sensor.TYPE_GAME_ROTATION_VECTOR] = "TYPE_GAME_ROTATION_VECTOR";
}

public static String getSensorTypeName(int type){
if(type > 0 && type < itsNames.length){
return itsNames[type];
}
return "未知";
}
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

}