Is there a way to change Google Maps Android API v2 marker’s icon during runtime without removing/re-adding the marker I want to change its icon? Can I apply transformations to it (like rotation)?
Thanks.
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Is there a way to change Google Maps Android API v2 marker’s icon during runtime without removing/re-adding the marker I want to change its icon? Can I apply transformations to it (like rotation)?
Thanks.
Currently you can’t change the marker at runtime, neither apply rotation to it.
You can use a workaround though – I’m working on a BlinkingMarker class where I have to adjust the opacity of the marker image at runtime.
The only solution right now is to create Bitmaps with different rotation and then add/remove them periodically. The problem with this solution is that adding/removing markers takes a lot of memory allocation so it results in constant garbage collection. A better and smoother workaround is to create all your images up-front and add all of them to the map at once. After that you can use the
Marker.setVisible(boolean)function to display the one that you currently need.Caution: measure your bitmaps before you do this, because adding a lot of big bitmaps can cause your app’s memory size to grow very big.
You can look at my workaround here:
https://github.com/balazsbalazs/blinking-marker-mapsv2
This is marker which is blinking (changes the opacity of the bitmap) but on the same lines you can apply any kind of transformation.