How to control mapView zoom LEVEL?

i am trying:
myMap:setCenter( 37.331692, -122.030456, 0.01, 0.01 )
Changing the last 2 parameteres, but no effects…

How can i force an specific level of zoom?

Try using :setRegion instead. That allows the extra two parameters on the end to set the zoom level. 

Solved:
map:setRegion( currentLat, currentLon,0.001,0.001 )

Try using :setRegion instead. That allows the extra two parameters on the end to set the zoom level. 

Solved:
map:setRegion( currentLat, currentLon,0.001,0.001 )