--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/trackscanner/src/de/neosoft/trackscanner/TrackScannerActivity.java Tue Nov 22 21:36:35 2011 +0100
@@ -0,0 +1,110 @@
+package de.neosoft.trackscanner;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.hardware.Sensor;
+import android.hardware.SensorEvent;
+import android.hardware.SensorEventListener;
+import android.hardware.SensorManager;
+import android.widget.EditText;
+
+public class TrackScannerActivity extends Activity implements SensorEventListener {
+ private SensorManager sensorManager;
+ private long lastUpdate;
+ private EditText mEdit;
+ private EditText mEdit2;
+
+ /** Called when the activity is first created. */
+ @Override
+ public void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.main);
+
+ sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
+ sensorManager.registerListener(this,
+ sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),
+ SensorManager.SENSOR_DELAY_NORMAL);
+
+ sensorManager.registerListener(this,
+ sensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD),
+ SensorManager.SENSOR_DELAY_NORMAL);
+
+
+ lastUpdate = System.currentTimeMillis();
+
+ mEdit = (EditText)findViewById(R.id.editText1);
+ mEdit2 = (EditText)findViewById(R.id.editText2);
+
+ }
+
+ @Override
+ public void onSensorChanged(SensorEvent event) {
+ long actualTime = System.currentTimeMillis();
+ if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
+ float[] values = event.values;
+ // Movement
+ float x = values[0];
+ float y = values[1];
+ float z = values[2];
+
+ float accelerationSquareRoot = (x * x + y * y + z * z)
+ / (SensorManager.GRAVITY_EARTH * SensorManager.GRAVITY_EARTH);
+
+ mEdit.setText("Accelerometer action: "+accelerationSquareRoot+
+ "\nDelta: "+(actualTime-lastUpdate)+"ms"+
+ "\naX: "+x+
+ "\naY: "+y+
+ "\naZ: "+z);
+
+ /*
+ final float alpha = 0.8;
+ float[] linear_acceleration;
+
+ float[] gravity;
+ gravity[0] = alpha * gravity[0] + (1 - alpha) * event.values[0];
+ gravity[1] = alpha * gravity[1] + (1 - alpha) * event.values[1];
+ gravity[2] = alpha * gravity[2] + (1 - alpha) * event.values[2];
+
+ linear_acceleration[0] = event.values[0] - gravity[0];
+ linear_acceleration[1] = event.values[1] - gravity[1];
+ linear_acceleration[2] = event.values[2] - gravity[2];
+*/
+ }
+
+ if (event.sensor.getType() == Sensor.TYPE_MAGNETIC_FIELD) {
+ float[] values = event.values;
+ // Orientation (compass)
+ float x = values[0];
+ float y = values[1];
+ float z = values[2];
+ mEdit2.setText("Magnetic Field:\n"+
+ "\nX = "+x+
+ "\nY = "+y+
+ "\nZ = "+z );
+ }
+ lastUpdate = actualTime;
+ }
+
+ @Override
+ public void onAccuracyChanged(Sensor sensor, int accuracy) {
+ // TODO Auto-generated method stub
+
+ }
+
+ @Override
+ protected void onResume() {
+ super.onResume();
+ // register this class as a listener for the orientation and
+ // accelerometer sensors
+ sensorManager.registerListener(this,
+ sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),
+ SensorManager.SENSOR_DELAY_NORMAL);
+ }
+
+ @Override
+ protected void onPause() {
+ // unregister listener
+ sensorManager.unregisterListener(this);
+ super.onStop();
+ }
+}
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