How to Enable One-Handed Keyboard on Xperia Z3
For some users, the 5.2-inch Xperia Z3 screen may be hard to use with one hand. The one-handed keyboard on Xperia Z3 is the Sony's solution for these ...
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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