Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>I know its a little too late, but since i came up with a solution that helped me, i thought of sharing it so that it helps programmers in the future.. </p> <p>@hooked82 : the problem with doing just</p> <pre><code>overlays.remove(position) </code></pre> <p>is that its a list. so when you remove one item from the list, every item to the right of this item, in the list, is shifted one place to the left, which will eventually mess up your positions making it really tedious to keep a track of them all over time. </p> <p>During one of my projects, i faced the same issue. Since i was adding and removing overlays upon some updates, after a point of time, it was really difficult to keep a track of the overlay positions in the list. </p> <p>Here is what i did as a work around for the problem, and so far there have been no issues.</p> <p><strong>Step 1:</strong> create your custom Overlay Class</p> <pre><code>public class MyOverlay extends Overlay { private String overlayUUID; @Override public void draw(Canvas canvas, MapView mapView, boolean shadow) { -- do what you need to do here -- } public String getOverlayUUID() { return overlayUUID } } </code></pre> <p><strong>Step 2:</strong> in the MapClass where you handle the overlays. Please be sure that the mapOverlays list is a global list in the MapView class where you add all your mapOverlays</p> <pre><code> List&lt;Overlay&gt; mapOverlays = mapView.getOverlays(); public void removeChosenOverlay(String overlayUUID) { for(int i=0; i&lt;mapOverlays.size(); i++) { String className = mapOverlays.get(i).getClass().getSimpleName(); if(className.equals("MyOverlay")) { MyOverlay myOverlay = (MyOverlay) mapOverlays.get(i); if((myOverlay != null) &amp;&amp; (myOverlay.getOverlayUUID.equals(overlayUUID))) { mapOverlays.remove(i); mapView.invalidate() break; } } } } </code></pre> <p>With the above method, one can uniquely identify each overlay with a UUID (in my case it was a string, but you can custom create your UUID's in any format you wish to) and remove the corresponding overlay item successfully from the list of overlays, without having to worry about their relative positions in the list. </p> <p>I hope it helps others who face the same issues with uniquely identifying overlays.</p>
    singulars
    1. This table or related slice is empty.
    1. PORemove overlay in the map
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USvivek86
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COand please mark the answer, if it helps anyone in the future.. Cheers.. !!
      singulars
      1. PO
      1. USvivek86
 

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