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release your finger until you have reached the target position.
•
Pinch
In some apps (such as Browser, and Gallery), you can zoom
in and out by placing two fingers on the screen at once and
pinching them together (to zoom out) or spreading them apart
(to zoom in).
•
Rotate the screen
Under many circumstances, you can automatically change
the screen orientation from portrait to landscape by turning
the phone sideways.