How to Uninstall Widgets on Android
When you remove an Android widget from your home screen, you don't uninstall it from your phone and it still uses some memory. To uninstall Android ...
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The latest Google Maps update wasn't very well welcomed by users, and the lack of Zoom in and out button was one of complaints. Zoom in or out with one hand is possible in the new version by doing as follows: (The pinching method is still useful with 2 hands)
Double Tap on the screen, and start scrolling up and down to zoom in and out, while holding your finger on the screen
See Also: How to Use Google Maps Offline on Android