Map Question?

I'm working on an app that will display a map and track my movement by placing a breadcrumb trail as a move, display distance, speed, time I have travelled etc etc.

Now, my first issue is that when the app starts it shows some place in china and I want it to center up on my position and track me as I move so I am always center of map. From what I have read, I should use this;

    myLocation = myMap:getUserLocation()
    myLatitude = myLocation.latitude
    myLongitude = myLocation.longitude
    myMap:setCenter(myLatitude, myLongitude, true)
    myMap.isLocationUpdating = true

I would make line 62 something like:
myMap:setCenter( 37.265310, -121.816406 )

...and at line 68 or something insert a function:

function updateMap()
    local currentLocation = myMap:getUserLocation()
    local currentLatitude = currentLocation.latitude
    local currentLongitude = currentLocation.longitude
    myMap:setCenter( currentLatitude, currentLongitude, true )  
end

... and finally just before you 'end' your startApp() function add:
timer.performWithDelay(1000,updateMap,0)

I think if you do this it should work.

views:1498 update：2011/10/10 21:27:38


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