Hi there,
what parameters do I pass to this function ?
invalidate(left, top, right, bottom)
for use with google map on android ?
thanks
- ahsan
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28answers:
1
+1
A:
You pass whatever rectangle you need invalidated. It may be simpler to use the invalidate() that takes no parameters.
CommonsWare
2010-10-15 21:21:26
i have a big map and lots of overlays, just using invalidate() is not efficient. I was trying to specify the area to invalidate. Please help. thanks. :)
Ahsan
2010-10-16 08:19:56
in other words, what should be the coordinates on the screen and how to know ?
Ahsan
2010-10-16 08:37:31
@Ahsan: If you do not know what needs to be invalidated, do not call `invalidate()` -- what makes you think it needs to be invalidated in the first place?
CommonsWare
2010-10-16 10:46:14
well, I h ave a few routes which may or may not be overlaid based on choice. So if they are overlaid or otherwise, I need to call invalidate to remove the previous overlay, right ?
Ahsan
2010-10-16 12:59:12
@Ahsan: Yes, but most likely you will need to call the zero-parameter `invalidate()`, AFAIK. If you can figure out a smaller rectangle based upon the old overlay's route, perhaps you can invalidate a smaller region, but I have no idea how easy or difficult that will be for you.
CommonsWare
2010-10-17 10:54:58