通过传感器管理器监测有7个传感器,但是在具体log某个传感监听接口方法时,确log不了,好像没有时间监听回调。。。
前端也精彩 2013-05-24 10:26:21 下面这段代码显示有各种传感
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
setup_views();
}
private void setup_views() {
//准备显示信息的UI组建
final TextView tx1 = (TextView) findViewById(R.id.tv_show);
//从系统服务中获得传感器管理器
SensorManager sm = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
//从传感器管理器中获得全部的传感器列表
List<Sensor> allSensors = sm.getSensorList(Sensor.TYPE_ALL);
//显示有多少个传感器
tx1.setText("经检测该手机有" + allSensors.size() + "个传感器,他们分别是:\n");
//显示每个传感器的具体信息
for (Sensor s : allSensors) {
String tempString = "\n" + " 设备名称:" + s.getName() + "\n" + " 设备版本:" + s.getVersion() + "\n" + " 供应商:"
+ s.getVendor() + "\n";
switch (s.getType()) {
case Sensor.TYPE_ACCELEROMETER:
tx1.setText(tx1.getText().toString() + s.getType() + " 加速度传感器accelerometer" + tempString);
break;
case Sensor.TYPE_GYROSCOPE:
tx1.setText(tx1.getText().toString() + s.getType() + " 陀螺仪传感器gyroscope" + tempString);
break;
case Sensor.TYPE_LIGHT:
tx1.setText(tx1.getText().toString() + s.getType() + " 环境光线传感器light" + tempString);
break;
case Sensor.TYPE_MAGNETIC_FIELD:
tx1.setText(tx1.getText().toString() + s.getType() + " 电磁场传感器magnetic field" + tempString);
break;
case Sensor.TYPE_ORIENTATION:
tx1.setText(tx1.getText().toString() + s.getType() + " 方向传感器orientation" + tempString);
break;
case Sensor.TYPE_PRESSURE:
tx1.setText(tx1.getText().toString() + s.getType() + " 压力传感器pressure" + tempString);
break;
case Sensor.TYPE_PROXIMITY:
tx1.setText(tx1.getText().toString() + s.getType() + " 距离传感器proximity" + tempString);
break;
case Sensor.TYPE_TEMPERATURE:
tx1.setText(tx1.getText().toString() + s.getType() + " 温度传感器temperature" + tempString);
break;
default:
tx1.setText(tx1.getText().toString() + s.getType() + " 未知传感器" + tempString);
break;
}
}
}
}
运行结果:有监测到 7个传感器
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下面log一下监听回调方法,看下能不能调用到,发现竟然没有执行到监听接口方法,不知道是代码问题还是其他问题;
public class QiyaActivity extends Activity implements SensorEventListener{
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.qiya_layout);
Log.i("info","xxxxxx");
SensorManager sm=(SensorManager) getSystemService(SENSOR_SERVICE);
sm.registerListener(this, sm.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), 3);
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
@Override
public void onSensorChanged(SensorEvent event) {
Log.i("info","xxxxx");
float qiya=event.values[0];
Log.i("info","当前的气压是: "+qiya*100.0F);
}
}