Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>Okay, I tried to do things on my Own, and put this code to get the above effect:</p> <pre><code>public class MarkerOverlay extends Overlay { Geocoder geoCoder = null; public MarkerOverlay() { super(); } @Override public boolean onTap(GeoPoint geoPoint, MapView mapView){ selectedLatitude = geoPoint.getLatitudeE6(); selectedLongitude = geoPoint.getLongitudeE6(); return super.onTap(geoPoint,mapView); } @Override public void draw(Canvas canvas, MapView mapV, boolean shadow){ if(shadow){ Projection projection = mapV.getProjection(); Point pt = new Point(); projection.toPixels(globalGeoPoint,pt); GeoPoint newGeos = new GeoPoint(selectedLat+(100),selectedLong); // adjust your radius accordingly Point pt2 = new Point(); projection.toPixels(newGeos,pt2); float circleRadius = Math.abs(pt2.y-pt.y); Paint circlePaint = new Paint(Paint.ANTI_ALIAS_FLAG); circlePaint.setColor(0x30000000); circlePaint.setStyle(Style.FILL_AND_STROKE); canvas.drawCircle((float)pt.x, (float)pt.y, circleRadius, circlePaint); circlePaint.setColor(0x99000000); circlePaint.setStyle(Style.STROKE); canvas.drawCircle((float)pt.x, (float)pt.y, circleRadius, circlePaint); Bitmap markerBitmap = BitmapFactory.decodeResource(getApplicationContext().getResources(),R.drawable.pin); canvas.drawBitmap(markerBitmap,pt.x,pt.y-markerBitmap.getHeight(),null); super.draw(canvas,mapV,shadow); } } } </code></pre> <p>This let me have following effect:</p> <p><img src="https://i.stack.imgur.com/1F3kg.png" alt="Effect on Map"></p> <p>The calculation used may not be what you want.<br/> Its just for demonstration purposes.<br/> Real range/distance calculation requires the use of bearing too and has some specific formula.<br/> Let me know if you have any questions regarding this.</p>
    singulars
    1. This table or related slice is empty.
    1. POCreating Custom Overlay on the map
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USSheikh Aman
    1. USSheikh Aman
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POCreating Custom Overlay on the map
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COwhat is selectedlatitude and longidute? where have you used latitude,longitude values ? please guide i want to implement same thing.
      singulars
      1. PO
      1. USUMAR
    2. COand please paste code of its usage from google map. how you call this class any help would be appreciated.
      singulars
      1. PO
      1. USUMAR
    3. COSorry, it is the latitude/longitude the user tapped on. its a global variable which holds these values. This class is an Inner class of my `MapActivity`
      singulars
      1. PO
      1. USSheikh Aman
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload