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Added time since last update #2

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3da3dda
Added time since last update
mikerobinsonshow Mar 12, 2017
4604974
StationInformation Class
mikerobinsonshow Mar 16, 2017
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201 changes: 168 additions & 33 deletions app/src/main/java/com/cunycodes/bikearound/MapsActivity.java
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Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,8 @@ public class MapsActivity extends FragmentActivity implements OnMapReadyCallbac
private GoogleApiClient mGoogleApiClient;
private final int PERMISSION_LOCATION = 111;

StationInformation stationInformation = new StationInformation();

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Expand Down Expand Up @@ -105,12 +107,11 @@ public void onMapReady(GoogleMap googleMap) {



//downloadCitiLocationsData();
mMap.setMyLocationEnabled(true);

}

public void onSearch(View view) {
public void onSearch(View view) throws JSONException {
EditText address = (EditText) findViewById(R.id.textAddress);
String location = address.getText().toString();
List<Address> addressList = null;
Expand All @@ -126,45 +127,44 @@ public void onSearch(View view) {

Address address1 = addressList.get(0);
LatLng latLng = new LatLng(address1.getLatitude(), address1.getLongitude());
mMap.addMarker(new MarkerOptions().position(latLng).title("Destination"));
int destID = stationInformation.getNearestLocationID(latLng);
LatLng destination = stationInformation.getLatLng(destID);
int bikeQty = stationInformation.getBikeQuantity(destID);
mMap.addMarker(new MarkerOptions().position(destination).title(stationInformation.getName(destID)).snippet(String.valueOf(bikeQty) + " bikes available"));
mMap.animateCamera(CameraUpdateFactory.newLatLng(latLng));
Log.d("NEARESTSTATION", String.valueOf(stationInformation.getName(destID)));
}
}

public void downloadCitiLocationsData() {

final JsonObjectRequest jsonRequest = new JsonObjectRequest(Request.Method.GET, CITI_API_URL, null, new Response.Listener<JSONObject>() {

@Override
public void onResponse(JSONObject response) {

try {
//System.out.println(response.toString());
//Log.v("TEST_API_RESPONSE", "ERR: " + response.toString());

JSONObject data = response.getJSONObject("data");
JSONArray list = data.getJSONArray("stations");
int lastUpdate = response.getInt("last_updated");
long currentTimeSecs = System.currentTimeMillis() / 1000;

//System.out.print("THE LIST = " + list.toString());
int timeElapsedUpdate = (int) (currentTimeSecs - lastUpdate);

// JSONObject obj = list.getJSONObject(0);
// String lat = obj.getString("lat");
// System.out.println(lat);
// 40.76727216
stationInformation.setStationLocationList(list); //Add a JSONArray to class StationInformation for easy retrieval
Log.d("BIKE72", String.valueOf(stationInformation.getBikeQuantity(522)));

for(int i = 0; i < list.length(); i++) {
JSONObject obj = list.getJSONObject(i);
double lat = obj.getDouble("lat");
double lon = obj.getDouble("lon");
String name = obj.getString("name");
// System.out.println(lat);
// System.out.println(lon);


int stationID = obj.getInt("station_id");
Log.d("STATION_ID", String.valueOf(stationID));
LatLng latLng = new LatLng(lat, lon);
mMap.addMarker(new MarkerOptions().position(latLng).title(name));
mMap.addMarker(new MarkerOptions().position(latLng).title(name).snippet(getTimeSinceUpdateString(timeElapsedUpdate)));

}


} catch (JSONException e) {
Log.v("TEST_API_RESPONSE", "ERR: " );
Expand All @@ -182,31 +182,28 @@ public void onErrorResponse(VolleyError error) {
Volley.newRequestQueue(this).add(jsonRequest);
}

public JSONArray downloadCitiBikeQuantity()
{
JSONArray JSONStations = null; //declare this, return an array
final JsonObjectRequest jsonRequest = new JsonObjectRequest(Request.Method.GET, STATION_STATUS_URL, null, new Response.Listener<JSONObject>() {
/// fetches station status, returns information to class StationInformation
public void downloadCitiStatusData() {

final JsonObjectRequest jsonRequestStatus = new JsonObjectRequest(Request.Method.GET, STATION_STATUS_URL, null, new Response.Listener<JSONObject>() {

@Override
public void onResponse(JSONObject response) {

try {

JSONObject data = response.getJSONObject("data");
JSONArray list = data.getJSONArray("stations");
//Log.d("MAPSACTIVITY", list.toString());
//JSONStations = list;
// Log.d("MAPSACTIVITY", JSONStations.toString());
}
int lastUpdate = response.getInt("last_updated");

stationInformation.setStationUpdate(lastUpdate);
stationInformation.setStationStatusList(list);

catch (JSONException e) {
} catch (JSONException e) {
Log.v("TEST_API_RESPONSE", "ERR: " );
}

}



}, new Response.ErrorListener() {

@Override
Expand All @@ -215,14 +212,13 @@ public void onErrorResponse(VolleyError error) {
}
});

Volley.newRequestQueue(this).add(jsonRequest);
return JSONStations;
Volley.newRequestQueue(this).add(jsonRequestStatus);
}


@Override
public void onLocationChanged(Location location) {

Log.d("LOCATION", String.valueOf(location));
}

@Override
Expand Down Expand Up @@ -255,6 +251,25 @@ public void startLocationServices() {
}
}

public String getTimeSinceUpdateString(int timeElapsedUpdate){
String updateTimeString = "";
if (timeElapsedUpdate == 0)
{
updateTimeString = "now.";

}
else if (timeElapsedUpdate < 60)
{
updateTimeString = " < 1 min ago.";
}
else
{
updateTimeString = String.valueOf((int) timeElapsedUpdate / 60) + "minutes ago.";
}

return updateTimeString;

}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
Expand All @@ -272,15 +287,135 @@ public void onRequestPermissionsResult(int requestCode, @NonNull String[] permis
}
}

public class StationInformation{
private JSONArray stationStatusList;
private JSONArray stationLocationList;
private long updateTime;

public void setStationStatusList(JSONArray arr){
stationStatusList = arr;
Log.d("SETSTATUSLIST", "STATUSLIST ARRAY SET");

}

public void setStationUpdate(long time){
updateTime = time;
}

public void setStationLocationList(JSONArray arr){
stationLocationList = arr;
Log.d("SETLOCATIONLIST", "LOCATIONLIST ARRAY SET");
}

public int getBikeQuantity(int stationID) throws JSONException {
try {
for (int i = 0; i < stationStatusList.length(); i++) {
JSONObject obj = stationStatusList.getJSONObject(i);
int currentID = obj.getInt("station_id");
int bikeQuantity = obj.getInt("num_bikes_available");

if (currentID == stationID){
return bikeQuantity;
}
}

}
catch (JSONException e){
Log.e("JSONEXCEPTION", "ERROR FINDING QUANTITY OF BIKES");
}
Log.e("GETBIKEQUANTITY", "Couldnt find information from JSON, problem with ID?");
return -1;
}

public int getNearestLocationID(LatLng latLng){
try {
int nearestID = -1;
double nearestDistance = 9999;
for (int i = 0; i < stationLocationList.length(); i++) {
JSONObject obj = stationLocationList.getJSONObject(i);
double stationLat = obj.getDouble("lat");
double stationLng = obj.getDouble("lon");
int ID = obj.getInt("station_id");
double myLat = latLng.latitude;
double myLng = latLng.longitude;
double distance = Math.sqrt((Math.pow((stationLat - myLat), 2)) + (Math.pow((stationLng - myLng), 2)));
Log.d("DISTANCE", String.valueOf(distance));
if (distance < nearestDistance ){
nearestDistance = distance;
nearestID = ID;
}
Log.d("NEARESTDISTANCE", String.valueOf(nearestDistance));

}

return nearestID;
}
catch (JSONException e){
Log.e("JSONEXCEPTION", "ERROR FINDING NEAREST LOCATION");
}
return -1;

}

public LatLng getLatLng(int stationID){
double lat = -1;
double lng = -1;

try {
for (int i = 0; i < stationLocationList.length(); i++) {
JSONObject obj = stationLocationList.getJSONObject(i);
int currentID = obj.getInt("station_id");

if (currentID == stationID){
lat = obj.getDouble("lat");
lng = obj.getDouble("lon");
}

}
LatLng coordinates = new LatLng(lat, lng);
Log.d("LATLNG OF GIVEN ID", String.valueOf(coordinates));
return coordinates;
}
catch (JSONException e){
Log.e("JSONEXCEPTION", "ERROR FINDING LATLNG STATION FROM ID");
}
LatLng coordinates = new LatLng(-1,-1);
return coordinates;

}

public String getName(int stationID){
String name = "name";
try {
for (int i = 0; i < stationLocationList.length(); i++) {
JSONObject obj = stationLocationList.getJSONObject(i);
int currentID = obj.getInt("station_id");
if (currentID == stationID){
name = obj.getString("name");
}
}
}
catch (JSONException e){
Log.e("JSONEXCEPTION", "ERROR FINDING LATLNG STATION FROM ID");
}
return name;
}



}

private class FetchLocations extends AsyncTask<Void, Void, Void> {

@Override
protected Void doInBackground(Void... params) {
downloadCitiStatusData();
downloadCitiLocationsData();
return null;
}
}


}