Android 2.3 用户手册

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页码 380
Maps, Navigation, Places, and Latitude
254
AUG-2.3-103
Android User’s Guide
Opening Maps
Google Maps for Android includes the Maps application as well as the Latitude, 
Navigation, and Places components, each available within Maps and as a separate 
shortcut in the Launcher.
Open Maps
S
Touch the Maps 
 icon in the Launcher or on the Home screen.
Move the map
S
Drag the map with your finger.
Zoom on the map
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Touch the plus or minus side of the Zoom control
OR
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Double-tap a location on the map with one finger zoom in that location; tap once 
with two fingers to zoom out.
OR
S
Touch an area with two fingers at once and spread them apart to zoom in; pinch 
them together to zoom out.
Not all zoom levels are available for all locations.