Zte blade V8 PRO User Manual page 22

Drag

To drag, press and hold your finger with some pressure
before you start to move your finger. While dragging, do not
release your finger until you have reached the target position.
Pinch

In some apps (such as Maps, web 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).
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