Android模拟器学framework和driver之传感器篇4(Android APP)
上面已经介绍了,android temperature sensor的移植过程,代码页已经贴给大家了,现在我们写一个APK来进行测试,代码很简单,界面也很简单很丑陋,哈哈,大家不要介意,这个aok只是用作测试,这里我就不多做介绍了,直接贴代码。
java代码:
- package com.android.jay.sensor1;
- 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 MySensor1Activity extends Activity implements SensorEventListener {
- /** Called when the activity is first created. */
- private TextView tView;
- SensorManager sensorManager = null;
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.main);
- tView=(TextView)findViewById(R.id.tv);
- sensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
- sensorManager.registerListener(this, sensorManager.getDefaultSensor(Sensor.TYPE_TEMPERATURE),sensorManager.SENSOR_DELAY_GAME);
- }
- public void onSensorChanged(SensorEvent event) {
- if(event.sensor.getType()==Sensor.TYPE_TEMPERATURE)
- tView.setText("value: "+Float.toString(event.values[0]));
- }
- public void onAccuracyChanged(Sensor sensor, int accuracy) {
- // TODO Auto-generated method stub
- }
- }
最后用adb install xxx.apk安装程序,然后再模拟器上运行,结果如下:
OK,看到value在不断的变化了吧,完工,下面一节我们会介绍framework层如何处理的。。。