Issue while adding marker in onTap(..) and marker position wrt zoom level about tileview

[moagrius]

the x and y returned are "real" pixel values - see #11

post back if that doesn't make sense or you need more help

[braj008]

Thank you. It worked. Now, lets move to 2nd part of the issue.
When and as I zoom, markers getting relocated. May be there is something to do with marker positions with each zoom level, I am not sure.
Please suggest.

[moagrius]

Markers stay in the relative position they were assigned. They will always indicate the same pixel on the tiled image.

If you have a TileView and call setSize(100,100), then add a marker at 50,50, that marker will always be at 50% from top and left. with setSize(500,500) and addMarker at 50,100, the marker would always be at 10% the total distance of the TileView from left and 20% the total distance from top.

If you're using a positioning system via TileView.defineRelativeBounds (e.g., lat/lng), then that's what the TileView will use with any subsequent position methods. To have a marker appear with a tap, while using a postioning system, you'd probably do something like this (untested - shooting a little blind here)

@Override
    public void onTap(int x, int y) {
    Log.i(TAG, "onTap : "+x+" - "+y);
    // you can use the new .unscale() instead of manual division for the next 2 lines, if you have the most current commit         
    int x = (int) ( x / getScale() );
    int y = (int) ( y / getScale() );      
    Point point = mTileView.translate( x, y );
    View marker = new ImageView( this);
    ((ImageView) marker).setImageResource( R.drawable.maps_marker_blue );
     mTileView.addMarker( marker, point.x,  point.y );          
   }

You'll also have to consider anchors. Anchors offset the marker view, so that the pixel on the image being indicated can be "pointed at" by whatever portion of the view is appropriate - maybe the top right, maybe centered horizontally and above (like a google marker, which would be -0.5f, -1.0f). More info on that in the wiki https://github.com/moagrius/TileView/wiki/Positioning and https://github.com/moagrius/TileView/wiki/Anchors

If that's not the behavior you're looking for, then you might want to just use a FrameLayout on top of the TileView.

Post back if you're still having trouble. I'm about to shut down for the night but will check back in tomorrow.

[braj008]

Thank you. new unscale(..) worked as expected.