public void onResume() {
gsensor = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
msensor = mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);
// Accelerometer sensor
if (gsensor != null) {
mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
mSensorManager.registerListener(this, gsensor, SensorManager.SENSOR_DELAY_GAME);
} else {
LOG.e(TAG, "g sensor is null");
}
// Magnetic sensor
if (msensor != null) {
mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);
mSensorManager.registerListener(this, msensor, SensorManager.SENSOR_DELAY_GAME);
} else {
LOG.e(TAG, "m sensor is null");
}
}
/** * Copyright (C) 2014-2015 Daniel Park. [email protected] This file is part of CompassProject * (https://github.com/DanielWorld) Created by danielpark on 2015. 7. 1.. */ public class MainView extends RelativeLayout implements SensorEventListener { private final String TAG = getClass().getSimpleName(); private final Logger LOG = Logger.getInstance(); private Context mContext; private SensorManager mSensorManager; private Sensor gsensor; private Sensor msensor; private float[] mGData = new float[3]; private float[] mMData = new float[3]; private float[] mR = new float[9]; private float[] mOrientation = new float[3]; private float mCurrentDegree = 0f; private int mCount; private int mCount2; private int mCount3; ImageView compassView, canvasView; public MainView(Context context) { super(context); init(context); } public MainView(Context context, AttributeSet attrs) { super(context, attrs); init(context); } public MainView(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); init(context); } @TargetApi(Build.VERSION_CODES.LOLLIPOP) public MainView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { super(context, attrs, defStyleAttr, defStyleRes); init(context); } private void init(Context context) { mContext = context; mSensorManager = (SensorManager) context.getSystemService(Context.SENSOR_SERVICE); View v = LayoutInflater.from(context).inflate(R.layout.view_main, null); compassView = (ImageView) v.findViewById(R.id.compass_view); canvasView = (ImageView) v.findViewById(R.id.canvas_view); // Resize canvasView ResizeImageView.resizeImageView( canvasView, ResolutionUtil.displayWidth(context), ResolutionUtil.displayWidth(context)); Bitmap bitmap = Bitmap.createBitmap( ResolutionUtil.displayWidth(context), ResolutionUtil.displayHeight(context), Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(bitmap); // Draw transparent screen Paint transPainter = new Paint(); transPainter.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR)); canvas.drawRect(0, 0, bitmap.getWidth(), bitmap.getHeight(), transPainter); Paint drawPaint = new Paint(); drawPaint.reset(); drawPaint.setFlags(Paint.DITHER_FLAG); drawPaint.setAntiAlias(true); drawPaint.setSubpixelText(true); drawPaint.setColor(Color.GREEN); drawPaint.setStyle(Paint.Style.STROKE); drawPaint.setStrokeJoin(Paint.Join.ROUND); drawPaint.setStrokeCap(Paint.Cap.ROUND); drawPaint.setStrokeWidth(10); canvas.drawLines( new float[] {bitmap.getWidth() / 2, bitmap.getHeight() / 2, bitmap.getWidth() / 2, 0}, drawPaint); canvasView.setImageBitmap(bitmap); // invoke canvasView canvasView.invalidate(); addView(v); } public void onResume() { gsensor = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER); msensor = mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD); // Accelerometer sensor if (gsensor != null) { mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER); mSensorManager.registerListener(this, gsensor, SensorManager.SENSOR_DELAY_GAME); } else { LOG.e(TAG, "g sensor is null"); } // Magnetic sensor if (msensor != null) { mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD); mSensorManager.registerListener(this, msensor, SensorManager.SENSOR_DELAY_GAME); } else { LOG.e(TAG, "m sensor is null"); } } public void onPause() { mSensorManager.unregisterListener(this); } @Override public void onSensorChanged(SensorEvent event) { /** * X axis is horizontal and points to the right <br> * Y axis is vertical and points up <br> * Z axis points towards the outside of the front face of the screen * * <p>event.values <br> * - values[0] : x - values[1] : y - values[2] : z */ synchronized (this) { float[] aData; float[] mData; int type = event.sensor.getType(); if (type == Sensor.TYPE_ACCELEROMETER) { aData = mGData; for (int i = 0; i < 3; i++) aData[i] = event.values[i]; if (mCount++ > 200) { LOG.d(TAG, "a_x: " + (aData[0]) + " a_y: " + (aData[1]) + " a_z: " + (aData[2])); // http://developer.android.com/reference/android/hardware/SensorEvent.html // According to this reference, when the device is sitting on a table, Acceleration minus // Gz on the z-axis is from 9.30 ~ 9.85 (It's not accurate!) if (aData[2] < 9.30 || aData[2] > 10.30) { Toast.makeText(mContext, "스마트폰을 수평으로 놔주세요!", Toast.LENGTH_SHORT).show(); } mCount = 0; } } else if (type == Sensor.TYPE_MAGNETIC_FIELD) { mData = mMData; for (int i = 0; i < 3; i++) mData[i] = event.values[i]; if (mCount2++ > 200) { LOG.d(TAG, "m_x: " + (mData[0]) + " m_y: " + (mData[1]) + " m_z: " + (mData[2])); mCount2 = 0; } } if (mCount3++ > 30) { SensorManager.getRotationMatrix(mR, null, mGData, mMData); SensorManager.getOrientation(mR, mOrientation); float azimuthInRadians = mOrientation[0]; float azimuthInDegress = (float) (Math.toDegrees(azimuthInRadians) + 360) % 360; RotateAnimation ra = new RotateAnimation( mCurrentDegree, -azimuthInDegress, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f); ra.setDuration(250); ra.setFillAfter(true); if (bearing != 0.0f) { // **** 15.07.02 additional function ***** RotateAnimation ra2 = new RotateAnimation( mCurrentDegree + bearing, -azimuthInDegress + bearing, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f); ra2.setDuration(250); ra2.setFillAfter(true); // 15.07.02 added canvas view canvasView.startAnimation(ra2); } compassView.startAnimation(ra); mCurrentDegree = -azimuthInDegress; mCount3 = 0; } } } @Override public void onAccuracyChanged(Sensor sensor, int accuracy) {} /** * Set angle (bearing) * * @param obj */ public void setBearingDirection(Object obj) { bearing = Float.parseFloat(obj.toString()); } float bearing = 0.0f; }
@Override
public void onSensorChanged(SensorEvent event) {
/**
* X axis is horizontal and points to the right <br>
* Y axis is vertical and points up <br>
* Z axis points towards the outside of the front face of the screen
*
* <p>event.values <br>
* - values[0] : x - values[1] : y - values[2] : z
*/
synchronized (this) {
float[] aData;
float[] mData;
int type = event.sensor.getType();
if (type == Sensor.TYPE_ACCELEROMETER) {
aData = mGData;
for (int i = 0; i < 3; i++) aData[i] = event.values[i];
if (mCount++ > 200) {
LOG.d(TAG, "a_x: " + (aData[0]) + " a_y: " + (aData[1]) + " a_z: " + (aData[2]));
// http://developer.android.com/reference/android/hardware/SensorEvent.html
// According to this reference, when the device is sitting on a table, Acceleration minus
// Gz on the z-axis is from 9.30 ~ 9.85 (It's not accurate!)
if (aData[2] < 9.30 || aData[2] > 10.30) {
Toast.makeText(mContext, "스마트폰을 수평으로 놔주세요!", Toast.LENGTH_SHORT).show();
}
mCount = 0;
}
} else if (type == Sensor.TYPE_MAGNETIC_FIELD) {
mData = mMData;
for (int i = 0; i < 3; i++) mData[i] = event.values[i];
if (mCount2++ > 200) {
LOG.d(TAG, "m_x: " + (mData[0]) + " m_y: " + (mData[1]) + " m_z: " + (mData[2]));
mCount2 = 0;
}
}
if (mCount3++ > 30) {
SensorManager.getRotationMatrix(mR, null, mGData, mMData);
SensorManager.getOrientation(mR, mOrientation);
float azimuthInRadians = mOrientation[0];
float azimuthInDegress = (float) (Math.toDegrees(azimuthInRadians) + 360) % 360;
RotateAnimation ra =
new RotateAnimation(
mCurrentDegree,
-azimuthInDegress,
Animation.RELATIVE_TO_SELF,
0.5f,
Animation.RELATIVE_TO_SELF,
0.5f);
ra.setDuration(250);
ra.setFillAfter(true);
if (bearing != 0.0f) {
// **** 15.07.02 additional function *****
RotateAnimation ra2 =
new RotateAnimation(
mCurrentDegree + bearing,
-azimuthInDegress + bearing,
Animation.RELATIVE_TO_SELF,
0.5f,
Animation.RELATIVE_TO_SELF,
0.5f);
ra2.setDuration(250);
ra2.setFillAfter(true);
// 15.07.02 added canvas view
canvasView.startAnimation(ra2);
}
compassView.startAnimation(ra);
mCurrentDegree = -azimuthInDegress;
mCount3 = 0;
}
}
}