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Electronic device and method for controlling zooming of displayed object

  • US 9,632,680 B2
  • Filed: 12/16/2013
  • Issued: 04/25/2017
  • Est. Priority Date: 09/29/2012
  • Status: Active Grant
First Claim
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1. A method for controlling zooming of an object displayed on a touch screen, comprising:

  • receiving a single-point slide operation on the object when the object receives a touch by a single finger of a user;

    generating a slide signal in response to the single-point slide operation;

    parsing the slide signal to obtain a slide track, a starting point of the slide track, an end point of the slide track and a feature value of a touch point in the slide track; and

    zooming in on the object when a deflection angle is greater than or equal to 0 degrees and the feature value is greater than a preset value,wherein the deflection angle is a difference between a first angle and a second angle,wherein the first angle is an angle between a first line and a reference line,wherein the second angle is an angle between a second line and the reference line,wherein the first line is a connecting line between the end point of the slide track and a reference point,wherein the second line is a connecting between the starting point of the slide track and the reference point,wherein the reference point is an end point of the reference line, andwherein the reference line is a bottom edge line of the touch screen.

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