Android代碼----傳感器---光傳感

一個簡單的小Demo 測試手機光傳感：

具體代碼如下：

[java代碼]Sample.java

    package com.example.test_sensor_light;  

    import org.openintents.sensorsimulator.hardware.Sensor;  
    import android.app.Activity;  
    import android.hardware.SensorManager;  
    import android.os.Bundle;  
    import android.widget.TextView;  

    public  class Sample extends Activity implements  android.hardware.SensorEventListener {  

        private TextView myTextView1;  

        private SensorManager mySensorManager;  

        @Override  
        public void onCreate(Bundle savedInstanceState) {  
            super.onCreate(savedInstanceState);  
            setContentView(R.layout.main);  
            myTextView1 = (TextView) findViewById(R.id.myTextView1);  
            mySensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);  

        }  

        @Override  
        protected void onResume() {  
            mySensorManager.registerListener(  
                    this,  
                    mySensorManager.getDefaultSensor(Sensor.TYPE_LIGHT),  
                    SensorManager.SENSOR_DELAY_GAME  
                    );  
            super.onResume();  
        }  

        @Override  
        protected void onStop() {  
            // TODO Auto-generated method stub  
            mySensorManager.unregisterListener(this);  
            super.onStop();  
        }  
        @Override  
        protected void onPause() {  
            mySensorManager.unregisterListener(this);  
            super.onPause();  
        }  

        @Override  
        public void onAccuracyChanged(android.hardware.Sensor sensor, int accuracy) {  
            // TODO Auto-generated method stub  

        }  

        @Override  
        public void onSensorChanged(android.hardware.SensorEvent event) {  
            // TODO Auto-generated method stub  
            float[] values = event.values;  
            int sensorType = event.sensor.TYPE_LIGHT;  
            if (sensorType == Sensor.TYPE_LIGHT) {  
                myTextView1.setText("當前光的強度為："+values[0]);        
            }  
        }  

    }  

    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
        xmlns:tools="http://schemas.android.com/tools"  
        android:layout_width="match_parent"  
        android:layout_height="match_parent"  
        android:orientation="vertical" >  

        <TextView  
            android:id="@+id/myTextView1"  
            android:layout_width="wrap_content"  
            android:layout_height="wrap_content"  
         />  

    </LinearLayout>  

    <resources>  

        <string name="app_name">Sample</string>  
        <string name="title">光傳感器</string>  
        <string name="hello_world">Hello world!</string>  
        <string name="menu_settings">Settings</string>  

    </resources>