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Method for calibrating touch screen in Android platform

A touch screen and platform technology, applied in the field of electronic information, can solve problems such as manufacturing process defects and inappropriate fixed calibration parameters

Inactive Publication Date: 2011-02-23
FUJIAN XINO COMM TECH
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AI Technical Summary

Problems solved by technology

[0003]But for most industry terminal products and their manufacturers, the touch screen hardware selection often needs to be changed, and due to the defects of the manufacturing process, the calibration parameters are fixed in the driver not suitable

Method used

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  • Method for calibrating touch screen in Android platform
  • Method for calibrating touch screen in Android platform
  • Method for calibrating touch screen in Android platform

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Embodiment Construction

[0021] refer to figure 1 , figure 2 Embodiments of the present invention will be described in detail.

[0022] Such as figure 1 Shown, a kind of method that the present invention realizes touch-screen calibration under Android platform, described Android framework comprises kernel layer, local storehouse, application framework, application layer, and it specifically comprises the steps:

[0023] Step 11, the touch screen driver in the kernel layer provides the sysfs interface file;

[0024] Step 12, the local library calls the sysfs interface file, first calibrates ck_en=disable through the non-enabled driver, obtains the original point of the touch screen, and sends the original point of the touch screen to the application framework;

[0025] Step 13, the application framework reports the original point of the touch screen to the calibration program CAPP of the application layer;

[0026] Step 14, the calibration program CAPP obtains calibration parameters through a stan...

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Abstract

The invention provides a method for calibrating a touch screen in an Android platform. An Android framework comprises a kernel layer, a local repository, an application framework and an application layer. The method comprises the following steps that: 11, the touch screen is driven to provide a sysfs interface file; 12, the local repository acquires an original point by disable drive calibration and sends the original point to the application framework; 13, the application framework reports the original point to computer-aided process planning (CAPP); 14, the CAPP acquires calibration parameters by a standard algorithm and then set the calibration parameters to the sysfs interface file; 15, enable drive calibration is started and then a program quits; the second method comprises the following steps that: 21, the CAPP sets a system attribute and informs the application framework of reporting the original point; 22, the CAPP acquires the calibration parameters by the standard algorithm; and 23, the CAPP sets the system attribute, and informs the application framework of making the novel calibration parameters take effect, and the application framework updates the calibration parameters. By the method, the calibration parameters of the touch screen can be dynamically regulated according to user experience of different users.

Description

【Technical field】 [0001] The invention relates to the technical field of electronic information, in particular to a touch screen calibration technology. 【Background technique】 [0002] The standard Android platform does not provide a touch screen calibration program, and most of the operations of the Android framework itself are completed through touch screen operations. Manufacturers using the Android platform use different hardware, but most of the currently used touch screen calibration methods are in Modify the touch screen driver in the linux kernel, fix the calibration parameters, and then report the data after the driver has revised the calibration parameters first. This method is adopted by most Android mobile phone manufacturers, because the hardware selection is stable and the technology level is high, and the calibration function can be realized by determining the calibration parameters at the driver layer. [0003] However, for most industry terminal products an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/445G06F3/041
Inventor 何晓水钱光洪陈文耀
Owner FUJIAN XINO COMM TECH
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