Search code examples
androidandroid-sqliteandroid-maps-v2android-cursor

Android - Cursor onMapReady (Markers)


I'm trying to "inflate" my content from SQLite into Markers but the solution I took of here it's not working, and it's not throwing any information on Log.

I'm a bit new on this Marker stuff and SQLite

My code inside the Fragment:

SQLiteHelper dbHelper = new SQLiteHelper(getActivity()); pds = new ParksDataSource(dbHelper.db);

    parks = pds.getAllParks();

    List<Marker> markersList = new ArrayList<Marker>();
    int i = 0;
    Cursor cursor = db.rawQuery("SELECT * FROM " + SQLiteHelper.TABLE_PARKS,
            null);
    try {
        while (cursor.moveToNext()) {
            String[] latlong = cursor.getString(cursor.getColumnIndex(SQLiteHelper.COL_PARKS_COORDINATES)).split(",");
            double latitude = Double.parseDouble(latlong[0]);
            double longitude = Double.parseDouble(latlong[1]);
            mark = new LatLng(latitude, longitude);
            Marker mPark = mMap.addMarker(new MarkerOptions().position(mark)
                    .title(cursor.getString(cursor.getColumnIndex(SQLiteHelper.COL_PARKS_TITLE)))
                    .icon(BitmapDescriptorFactory.fromBitmap(writeTextOnDrawable(R.mipmap.ic_pin, cursor.getString(cursor.getColumnIndex(SQLiteHelper.COL_PARKS_FREE))))));
            mPark.setTag(0);
            markersList.add(mPark);
            Log.d("HierParks", "Pin: " + i + ", " + latitude + "," + longitude + " - Park:" + cursor.getString(cursor.getColumnIndex(SQLiteHelper.COL_PARKS_TITLE)));
            i++;
        }
    } finally {
        cursor.close();
    }

    LatLngBounds.Builder builder = new LatLngBounds.Builder();
    for (Marker m : markersList) {
        builder.include(m.getPosition());
    }`

Thank you for your time.


Solution

  • Finally I managed to fix it, hope this help someone.

    My ParkDataSource:

    public Cursor getAll() {
            return db.rawQuery("SELECT * FROM " + SQLiteHelper.TABLE_PARKS,
                    null);
        }
    

    My Fragment:

    SQLiteHelper dbHelper = new SQLiteHelper(getActivity());
            pds = new ParksDataSource(dbHelper.db);
            cursor = pds.getAll();
    
            List<Marker> markersList = new ArrayList<Marker>();
            int i = 0;
            try {
                while (cursor.moveToNext()) {
                    String[] latlong = cursor.getString(cursor.getColumnIndex(SQLiteHelper.COL_PARKS_COORDINATES)).split(",");
                    double latitude = Double.parseDouble(latlong[0]);
                    double longitude = Double.parseDouble(latlong[1]);
                    mark = new LatLng(latitude, longitude);
    
                    if (cursor.getString(cursor.getColumnIndex(SQLiteHelper.COL_PARKS_SLOTS)) == null){
    
                        Marker mPark = map.addMarker(new MarkerOptions().position(mark)
                                .title(cursor.getString(cursor.getColumnIndex(SQLiteHelper.COL_PARKS_TITLE)))
                                .icon(BitmapDescriptorFactory.fromBitmap(writeTextOnDrawable(R.mipmap.ic_pin, cursor.getString(cursor.getColumnIndex(SQLiteHelper.COL_PARKS_FREE))))));
                        mPark.setTag(0);
                        markersList.add(mPark);
                    }
                    i++;
                }
            } finally {
                cursor.close();
            }
    
            LatLngBounds.Builder builder = new LatLngBounds.Builder();
            for (Marker m : markersList) {
                builder.include(m.getPosition());
            }