PositioningActivity.java
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package fr.utbm.lo53.p2017.positionningapp;
import android.content.Context;
import android.graphics.Bitmap;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.support.constraint.ConstraintLayout;
import android.support.design.widget.Snackbar;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.view.animation.RotateAnimation;
import android.widget.ImageView;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.ImageRequest;
import com.android.volley.toolbox.JsonObjectRequest;
import com.android.volley.toolbox.Volley;
import org.json.JSONException;
import org.json.JSONObject;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Collections;
import java.util.List;
import java.util.Random;
public class PositioningActivity extends BaseActivity {
private static final String TAG = "PositioningActivity";
private ConstraintLayout start_layout;
private ImageView mapView;
private ImageView imageLoading;
private Animation hideAnimation;
// Instantiate the RequestQueue.
private RequestQueue queue;
private boolean isLocating = false;
private Integer mapId = null;
private final Handler handler = new Handler();
private final Runnable runnable = new Runnable() {
@Override
public void run() {
// Create request
JsonObjectRequest locateRequest = new JsonObjectRequest(Request.Method.GET,
getURLSolver().locateURL(getMacAddress()),
null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
try {
float x = (float) response.getDouble("x");
float y = (float) response.getDouble("y");
int mapId = response.getInt("map");
imageLoading.setVisibility(View.GONE);
if (hasCorrectMap(mapId)) {
putPoint(x, y);
} else {
getMap(mapId);
}
} catch (JSONException e) {
Log.e(TAG, "Could not parse the response: " + e.toString());
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
// TODO: Remove random position
Random r = new Random();
putPoint(r.nextFloat(), r.nextFloat());
Snackbar.make(mapView, "Error during positioning request", Snackbar.LENGTH_LONG).show();
}
});
Log.v(TAG, "" + locateRequest);
queue.add(locateRequest);
handler.postDelayed(runnable, 1000);
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_positioning);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
start_layout = (ConstraintLayout) findViewById(R.id.start_layout);
initFadeOutAndHideAnimation();
mapView = (ImageView) findViewById(R.id.map);
imageLoading = (ImageView) findViewById(R.id.img_loading);
queue = Volley.newRequestQueue(this);
}
@Override
protected void onPause() {
super.onPause();
handler.removeCallbacks(runnable);
}
@Override
protected void onResume() {
super.onResume();
if (isLocating) {
handler.post(runnable);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
MenuItem item = menu.findItem(R.id.open_calibration_activity);
item.setVisible(true);
return true;
}
public void startLocating(View v) {
Log.i(TAG, v.toString());
if (isLocating) {
return;
}
isLocating = true;
final Animation rotate = AnimationUtils.loadAnimation(this, R.anim.rotate);
rotate.setDuration(1500);
imageLoading.setVisibility(View.VISIBLE);
imageLoading.startAnimation(rotate);
start_layout.startAnimation(hideAnimation);
handler.post(runnable);
}
private void initFadeOutAndHideAnimation() {
ImageView hiding_image = (ImageView) findViewById(R.id.hiding_image);
final float initial_alpha = hiding_image.getImageAlpha() / 255;
Animation animation = new AlphaAnimation(initial_alpha, 0);
animation.setInterpolator(new AccelerateInterpolator());
animation.setDuration(1000);
animation.setAnimationListener(new Animation.AnimationListener() {
public void onAnimationEnd(Animation animation) {
start_layout.setVisibility(View.GONE);
}
public void onAnimationRepeat(Animation animation) {}
public void onAnimationStart(Animation animation) {}
});
hideAnimation = animation;
}
private void putPoint(float x, float y) {
ImageView mapMarker = (ImageView) findViewById(R.id.map_marker);
float x_on_map = (float) mapView.getWidth() * x; // in px
float y_on_map = (float) mapView.getHeight() * y;
mapMarker.setX(mapView.getX() + x_on_map - mapMarker.getWidth()/2);
mapMarker.setY(mapView.getY() + y_on_map - mapMarker.getHeight());
mapMarker.setVisibility(View.VISIBLE);
mapView.setVisibility(View.VISIBLE);
}
private boolean hasCorrectMap(int mapId) {
return (this.mapId != null && this.mapId.equals(mapId));
}
private void getMap(int mapId) {
mapView.setVisibility(View.INVISIBLE);
ImageRequest mapRequest = new ImageRequest(
getURLSolver().mapBytesURL(mapId),
new Response.Listener<Bitmap>() {
@Override
public void onResponse(Bitmap bitmap) {
mapView.setImageBitmap(bitmap);
mapView.setVisibility(View.VISIBLE);
Snackbar.make(mapView, "You need to set a point before measurement.", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
}, 0, 0, null,
new Response.ErrorListener() {
public void onErrorResponse(VolleyError error) {
Snackbar.make(mapView, "Can't load map !", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
queue.add(mapRequest);
}
}