如何将使用SensorListener的程序转换为SensorEventListener
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我正在创建一个名为CompassApp的应用程序。我创建了两个名为Compass.java和Rose.java的类。该应用程序是根据网站中描述的教程创建的，并且使用了不建议使用的SensorListener版本。 Compass.java类正在使用此不建议使用的版本。使用不推荐使用的版本时，该应用程序运行良好。然后，我想将我的应用程序转换为SensorEventListener的当前版本。但是指南针的旋转停止了！我被困住了，不知道该怎么办。请帮我。
具有不推荐使用的SensorListener接口的Compass.java
public class Compass extends Activity implements SensorListener {
SensorManager sensorManager;
static final int sensor = SensorManager.SENSOR_ORIENTATION;
MyRose rose;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Set full screen view
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
requestWindowFeature(Window.FEATURE_NO_TITLE);
rose = new MyRose(this);
setContentView(rose);
// get sensor manager
sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
}
// register to listen to sensors
@Override
public void onResume() {
super.onResume();
sensorManager.registerListener(this, sensor);
}
// unregister
@Override
public void onPause() {
super.onPause();
sensorManager.unregisterListener(this);
}
// Ignore for now
public void onAccuracyChanged(int sensor, int accuracy) {
}
// Listen to sensor and provide output
public void onSensorChanged(int sensor, float[] values) {
if (sensor != Compass.sensor)
return;
int orientation = (int) values[0];
rose.setDirection(orientation);
}
}
public class Compass extends Activity{
SensorManager sensorManager;
SensorEventListener listener ;
static final int sensor = SensorManager.SENSOR_ORIENTATION;
Rose rose;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Set full screen view
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
requestWindowFeature(Window.FEATURE_NO_TITLE);
listener = new SensorEventListener()
{
@Override
public void onSensorChanged(SensorEvent e)
{
int orientation = (int) e.values[0];
rose.setDirection(orientation);
}
@Override
public void onAccuracyChanged(Sensor arg0, int arg1) {
// TODO Auto-generated method stub
}
};
setContentView(rose);
// get sensor manager
sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
sensorManager.registerListener(listener, sensorManager.getDefaultSensor(sensor),SensorManager.SENSOR_MAGNETIC_FIELD);
}
// register to listen to sensors
@Override
public void onResume() {
super.onResume();
sensorManager.registerListener(listener, sensorManager.getDefaultSensor(sensor), SensorManager.SENSOR_MAGNETIC_FIELD);
}
// unregister
@Override
public void onPause() {
super.onPause();
sensorManager.unregisterListener(listener);
}
}
没有找到相关结果
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爆刺疤灯
public class Compass extends Activity implements SensorEventListener { SensorManager sensorManager; static final int sensor = SensorManager.SENSOR_ORIENTATION; MyRose rose; private Sensor myCompassSensor; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Set full screen view getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); requestWindowFeature(Window.FEATURE_NO_TITLE); rose = new MyRose(this); setContentView(rose); // get sensor manager sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE); // get compass sensor (ie magnetic field) myCompassSensor = sensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD); } // register to listen to sensors @Override public void onResume() { super.onResume(); sensorManager.registerListener(this, myCompassSensor, SensorManager.SENSOR_DELAY_NORMAL); } // unregister @Override public void onPause() { super.onPause(); sensorManager.unregisterListener(this); } // Ignore for now public void onAccuracyChanged(Sensor sensor, int accuracy) { // TODO Auto-generated method stub } public void onSensorChanged(SensorEvent event) { // this check is unnecessary with only one registered sensor // but it\'s useful to know in case you need to add more sensors if (event.sensor.getType() == Sensor.TYPE_MAGNETIC_FIELD) { int orientation = (int) event.values[0]; rose.setDirection(orientation); } } }