Osmdroid and Pinch

Question

I'm developing an app using osmdroid (3.0.8). When I zoom using two fingers in and out, the zoom starts from the center of the map, not from the middle of the two fingers (using MapView.setMultiTouchControls(true);). I've tried to implement the pinch (pinch) but with bad results. I've read other similar questions but without finding a good solution.

Note: I MUST use OSM, and not other solutions

Deepen

Are you implementing it with something like this ? – Schweitzer

Not sure if you see flickering as well. – Schweitzer

@Sam i also use the osmdroid.but after use this i got this type error in every time.Unfortunately,System UI has Stopped.i can't remove the app from device.means device has been hang. – Shemikashemite

Answer 1

Osmdroid 3.0.10 includes support for zooming at the location you pinched at.

The samples also include a two-finger rotation gesture overlay if that is something you are interested in trying.

Iowa

please, can you provide the links about that? I only found 3.0.9 and tested it: no pinch between fingers. – Deepen

There is no 3.0.10 release yet so you will have to build from source. Source can be found on the osmdroid google code page www.osmdroid.com. We will probably push a new release soon. – Iowa

@Iowa Was this included in the 3.0.10 release? That is what I am using, and the pinch zoom behavior seems to still zoom relative to the center of the map. – Highstrung

It was included in the 3.0.10 release and I just checked the sample app and when I pinch the corner of the map it zooms from the pinch point as intended not the center. – Iowa

@Iowa The issue I am trying to address is when I pinch to zoom everything goes well until I release the pinch. At that point, the map moves a bit. When you release your fingers, does the map stay still? – Highstrung

Note that as you pinch you are "in-between" zoom levels. So when you release, it will snap-to the closest zoom level. See Issue 460 for progress on implementing in-between/floating point zoom levels. – Iowa