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A method and device for triggering a click event on a touch terminal
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A technology of click events and contacts, applied in the touch field
Active Publication Date: 2021-06-15
HISENSE VISUAL TECH CO LTD
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[0005] However, when the aforementioned distances are all smaller than the first threshold and there is a aforementioned distance greater than the second threshold, neither the click event nor the sliding event will be triggered, and the touch operation becomes an invalid operation
Method used
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example 1
[0052] Such as Figure 7 As shown, it is a partial schematic diagram of the AD coordinate system F of the capacitive screen. The contact coordinates 71 to 74 generated by a single-click operation are read successively. Among them, the contact coordinate 74 is the first contact coordinate. The contact coordinates 71 (X 1 , Y 1 ) is the second contact coordinate, since the first read second contact coordinate is only one, so when reading the contact coordinate 71, set one containing X 1 and Y 1 The initial parameter group of parameters, and the abscissa difference ΔX=0, and the ordinate difference ΔY=0 are substituted into , a distance of 0 is obtained.
example 2
[0054] Such as Figure 8 As shown, simultaneously read the coordinates of the first touch point 81 (X 1 , Y 1 ) and 82(X 2 , Y 2 ), the setting contains X 1 and Y 1 The first initial parameter set, and contains X 2 and Y 2 The second initial parameter group, the difference between the horizontal and vertical coordinates in each initial parameter group is equal to 0, after substituting the difference 0 into the above formula (1), two distances equal to 0 are obtained, and each 0 value is contained in two In the initial parameter group.
[0055] Step S122: After judging the distance between the first contact coordinates read at the next moment and the second contact coordinates read before it, the first threshold, and the size of the second threshold, the first contact coordinates The number of is cumulatively counted.
[0056] Specifically, after the timing starts, calculate the distance between the first contact coordinates read at the next moment and the second conta...
Embodiment 2
[0073] According to the method provided in Embodiment 1, Embodiment 2 of the present invention also provides an apparatus for locating a touch area correspondingly, which will be described in detail as follows.
[0074] Such as Figure 14a As shown, a device for triggering a click event when a click operation occurs on the touch screen includes a reading unit 141 for successively reading the contact coordinates and the number of contact coordinates within the duration of a click operation; The counting unit 142 is used for when the distances between the first contact coordinates read at a moment and the second contact coordinates read before it are all less than the first threshold, and there is said distance greater than the second threshold , the number of the first contact coordinates is counted cumulatively; the trigger unit 143 is used for if the accumulated value obtained after the cumulative counting of the number of the first contact coordinates is less than the differ...
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Abstract
The invention provides a method and device for triggering a click event when a click operation occurs on a touch screen, and relates to the field of touch technology. The method includes: sequentially reading the touch point coordinates and the number of touch point coordinates within the duration of one click operation; When the distances between the point coordinates are all less than the first threshold, and the distance is greater than the second threshold, the number of the first contact coordinates is counted cumulatively; If the cumulative value of is less than the difference between it and the number of coordinates of the touch points, a click event is triggered. The present invention can overcome the problem that when the distance between the first coordinate and the second coordinate is between the first threshold and the second threshold, the click event cannot be triggered, and then the click event cannot be executed at the application layer to respond to the click operation. question.
Description
technical field [0001] The present invention relates to the field of touch technology, in particular to a method and device for triggering a click event when a click operation occurs on a touch screen. Background technique [0002] In related technologies, a touch terminal includes a touch screen, a detection device, a controller, a memory, and an event processor. The touch object on the touch screen forms a touch operation from falling to lifting, and the signal indicating the position of the touch operation is provided by the front end of the touch screen. The detection device sent to the controller, the controller maps the signal to the contact coordinates and stores them in the memory, the event processor reads the contact coordinates from the memory successively, according to the contact coordinates read at a moment The distance between the previously read contact coordinates is used to determine whether to trigger a touch event. Touch events include drop events, lift e...
Claims
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Application Information
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