CN112364089A

CN112364089A - Method and system for drawing and storing K line at mobile phone terminal of apple

Info

Publication number: CN112364089A
Application number: CN202011210147.5A
Authority: CN
Inventors: 张男; 岳峰; 郭兵
Original assignee: Shanghai Qijian Technology Information Technology Co ltd
Current assignee: Shanghai Qijian Technology Information Technology Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-02-12

Abstract

The invention provides a method and a system for drawing and storing a K line at a mobile phone terminal of a apple phone, wherein the method comprises the following steps: step S1: acquiring the drawing data of the stock from a data server of a financier; step S2: storing the acquired line drawing data to a local database of the client; step S3: when switching the K line period, firstly judging whether the local data of the selected period of the stocks to be browsed exist: if not, returning to the step S1 to continue execution, and continuing to request K line data of a new period for data storage; if yes, importing the drawing data, and continuing to execute the step S4; step S4: drawing an object at the switched K line period based on the imported object data. The method for drawing the K line at the apple end can provide a developer with a method for drawing the K line at the apple end, the storage method can accelerate the display of the K line, the efficiency is high, and the user experience is improved.

Description

Method and system for drawing and storing K line at mobile phone terminal of apple

Technical Field

The invention relates to the technical field of computers, in particular to a method and a system for drawing and storing a K line at a mobile phone terminal of a apple phone.

Background

The K line (Candlestick chart) is also called as Yin-Yang candle and is a graph reflecting the price trend, the drawing method of the K line graph in the stock market and the futures market comprises four data, namely the opening price, the highest price, the lowest price and the closing price, and all the K lines are expanded around the four data to reflect the situation of the great trend and the price information. If the daily K-line graph is placed on a piece of paper, a daily K-line graph can be obtained, and a week K-line graph and a month K-line graph can be drawn.

The display speed of the prior art on the K line is very slow, and a user can see the self-drawn K line only after waiting for a long time, which is not beneficial to the investment planning of the user.

In view of the above-mentioned drawbacks of the prior art, the technical problems to be solved by the present invention are as follows:

1) using system resource methods to draw K-lines in an optimal manner

2) And reasonably and locally storing the data of the K line so as to quickly present the K line.

Patent document CN102110301A (application number: 200910244224.6) discloses a method for drawing a K-line graph and a caption machine, so as to solve the problem that the existing drawing method cannot meet the real-time requirement. The method comprises performing fixed data sampling by using a caption machine; the caption machine directly draws a K line graph by using the sampling data; and replacing a preset template primitive with the drawn K line graph to generate a graph playing primitive. In the patent technology, the drawing efficiency and the drawing accuracy of the GDI and the GDI + are low.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a method and a system for drawing and storing a K line at a mobile phone terminal of a apple phone.

The invention provides a method for drawing and storing a K line at a mobile phone end, which is characterized by comprising the following steps:

step S1: acquiring the drawing data of the stock from a data server of a financier;

step S2: storing the acquired line drawing data to a local database of the client;

step S3: when switching the K line period, firstly judging whether the local data of the selected period of the stocks to be browsed exist: if not, returning to the step S1 to continue execution, and continuing to request K line data of a new period for data storage; if yes, importing the drawing data, and continuing to execute the step S4;

step S4: drawing an object at the switched K line period based on the imported object data.

Preferably, the step S4 includes:

step S401: finding the highest price and the lowest price of K line data displayed on a screen, and vertically connecting the K line data and the K line data into a straight line;

step S402: finding out the market opening price and the market closing price on the same day or a certain period, and connecting the market opening price and the market closing price into a long and narrow rectangular column: if the closing price of the current day or a certain period is higher than the opening price, the column is represented by red or left white, and the column is marked as a positive line; if the closing price is lower than the opening price on the same day or a certain period, the column is represented by green or black is coated on the column, and the column is marked as a negative line.

Preferably, the line drawing data includes: time information corresponding to the line drawing points, index values in the data set and price information;

the line drawing data includes: trading time of stocks, opening price, closing price, highest price and lowest price.

Preferably, the step S2 includes the steps of:

step S201: creating a graphical drawing data object;

step S202: recording drawing line data in the current K line period to the created graphic drawing data object;

step S203: adding the recorded drawing line data in the current K line period to the graphic drawing data object;

step S204: drawing a data object according to the obtained graph, and drawing by using a CALAyer of an apple system;

preferably, the graphic drawing data object refers to: and the custom class is specially used for processing data obtained from a local or server, and further carrying out calculation to obtain related data for directly drawing to a screen.

According to the drawing and storing system of the apple mobile phone end K line provided by the invention, the storing system comprises:

module S1: acquiring the drawing data of the stock from a data server of a financier;

module S2: storing the acquired line drawing data to a local database of the client;

module S3: when switching the K line period, firstly judging whether the local data of the selected period of the stocks to be browsed exist: if not, calling a module S1 to continuously request K line data of a new period for data storage; if yes, importing the line drawing data and calling a module S4;

module S4: drawing an object at the switched K line period based on the imported object data.

Preferably, the module S4 includes:

a module S401: finding the highest price and the lowest price of K line data displayed on a screen, and vertically connecting the K line data and the K line data into a straight line;

a module S402: finding out the market opening price and the market closing price on the same day or a certain period, and connecting the market opening price and the market closing price into a long and narrow rectangular column: if the closing price of the current day or a certain period is higher than the opening price, the column is represented by red or left white, and the column is marked as a positive line; if the closing price is lower than the opening price on the same day or a certain period, the column is represented by green or black is coated on the column, and the column is marked as a negative line.

Preferably, the module S2 includes the following modules:

a module S201: creating a graphical drawing data object;

a module S202: recording drawing line data in the current K line period to the created graphic drawing data object;

a module S203: adding the recorded drawing line data in the current K line period to the graphic drawing data object;

a module S204: drawing a data object according to the obtained graph, and drawing by using a CALAyer of an apple system;

Compared with the prior art, the invention has the following beneficial effects:

1. the invention can provide a method for drawing the K line at the apple end for developers.

2. The invention can accelerate the display of the K line by the storage method, has higher efficiency and improves the user experience.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic diagram of success in drawing K-line day K provided by the present invention.

Fig. 2 is a schematic diagram of the pattern of switching from day K to week K according to the present invention.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

Specifically, the step S4 includes:

Specifically, the line drawing data includes: time information corresponding to the line drawing points, index values in the data set and price information;

Specifically, the step S2 includes the steps of:

step S201: creating a graphical drawing data object;

step S204: drawing a data object according to the obtained graph, and drawing by using a layer CALAYER of an apple system;

specifically, the graphic drawing data object refers to: and the custom class is specially used for processing data obtained from a local or server, and further carrying out calculation to obtain related data for directly drawing to a screen.

The system and the method for drawing and storing the K line at the mobile phone end can be realized through the system and the method for drawing and storing the K line at the mobile phone end. Those skilled in the art can understand the drawing and storing system and the storing method of the smartphone end K line as a preferred example of the drawing and storing system and the storing system of the smartphone end K line.

Specifically, the module S4 includes:

Specifically, the module S2 includes the following modules:

a module S201: creating a graphical drawing data object;

a module S204: drawing a data object according to the obtained graph, and drawing by using a layer CALAYER of an apple system;

The present invention will be described more specifically below with reference to preferred examples.

Preferred example 1:

in order to solve the problems, the user experience is more friendly. Our invention has practical application.

Mainly comprises the following steps:

step S1: drawing and calculating the following steps by taking the trading time, opening price, closing price, highest price, lowest price and the like (drawing data) of the stock from a data server of the financier;

step S2: saving the drawing data acquired in the step S1 to a local database of the client;

step S3: when the K line period is switched, preferentially judging whether the local data of the selected period of the stocks to be browsed exist; if not, repeating the steps S1-S2 to store the data;

step S4: when the K line period is switched, preferentially judging whether the local data of the selected period of the stocks to be browsed exist; if not, repeating the steps S1-S2, and continuously requesting K line data of a new period to store the data;

(the concrete drawing method is that firstly we find the highest and lowest prices of K line data displayed on the screen, vertically connect them into a straight line, then find the price of opening the market and closing the market on the same day or a certain period, connect these two prices into a long and narrow rectangular column

Further, the line drawing data includes time information corresponding to the line drawing point, an index value in the data set, and price information.

Further, the step S2 includes the following steps:

creating a graphic drawing data object (a self-defined class, which is specially used for processing data obtained from a local or server and further calculating to obtain related data for directly drawing to a screen);

recording line drawing data in the current K line period to the graphic drawing data object;

adding the recorded drawn line data in the current K line period to the graphic drawing data object.

And obtaining a drawing data object, and drawing by using an apple layer (CALAYER) at the moment (the method is only available in an apple system, and is not available in other systems).

Layer diagrams in this specification are Layers that provide the underlying structure for animated views, layer diagrams that render and animate the view content and maintain a higher frame rate, and layer diagrams that render and animate the view content and maintain a higher frame rate.

When switching to other periods, whether data exists locally or not is judged preferentially. Local data is preferably used if available. To increase the speed of loading.

Example 2:

fig. 1 is a diagram of a K-line day K. The time of the K line is the horizontal axis, and the price is the vertical axis. And when background data is obtained, selecting the maximum and minimum values in the period according to the maximum K lines which can be drawn by the current screen to judge the boundary of the ordinate of the drawing area. When drawing K line, the highest and lowest price points are connected into a line, and the price of the closing disk is connected with a rectangle strip after opening the disk. The color of the column body is judged according to the opening price and the closing price, if the opening price is larger than the closing price, the column body is green, and if the closing price is larger than the opening price, the column body is red. The drawn layer is drawn by CALAyer.

Example 3:

fig. 2 shows a pattern of switching from day K to week K when switching to week K. Preferentially judging whether local storage of the data of the week K exists in the local area, preferentially using the local area if the local storage exists, and firstly requesting the data of the server side and then storing the data to the local area if the local storage does not exist. The sequential method accelerates the drawing of the K lines when switching to week K. The K line was drawn in the same manner as in example 1.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

Those skilled in the art will appreciate that, in addition to implementing the systems, apparatus, and various modules thereof provided by the present invention in purely computer readable program code, the same procedures can be implemented entirely by logically programming method steps such that the systems, apparatus, and various modules thereof are provided in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system, the device and the modules thereof provided by the present invention can be considered as a hardware component, and the modules included in the system, the device and the modules thereof for implementing various programs can also be considered as structures in the hardware component; modules for performing various functions may also be considered to be both software programs for performing the methods and structures within hardware components.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. A method for drawing and storing a K line at an apple mobile phone terminal is characterized by comprising the following steps:

2. The method for drawing and storing the K line at the iphone terminal of claim 1, wherein the step S4 comprises:

3. The method for drawing and storing the K line at the iphone terminal of claim 1, wherein the line drawing data comprises: time information corresponding to the line drawing points, index values in the data set and price information;

4. The method for drawing and storing the apple phone terminal K line according to claim 1, wherein the step S2 includes the steps of:

step S201: creating a graphical drawing data object;

step S204: and drawing the data object according to the obtained graph by using CALAYER of an apple system.

5. The apple phone terminal K line drawing and storing method of claim 4, wherein the graphic drawing data object refers to: and the custom class is specially used for processing data obtained from a local or server, and further carrying out calculation to obtain related data for directly drawing to a screen.

6. The utility model provides a drawing and memory system of cell-phone end K line, memory system which characterized in that includes:

7. The system for drawing and storing the K line at the handset end of the apple phone of claim 6, wherein the module S4 comprises:

8. The system for drawing and storing the K line at the iphone terminal of claim 6, wherein the line drawing data comprises: time information corresponding to the line drawing points, index values in the data set and price information;

9. The system for drawing and storing the K line at the handset end of the apple phone of claim 6, wherein the module S2 comprises the following modules:

a module S201: creating a graphical drawing data object;

a module S204: and drawing the data object according to the obtained graph by using CALAYER of an apple system.

10. The system for drawing and storing the K line at the iphone terminal of claim 9, wherein the graphic drawing data object refers to: and the custom class is specially used for processing data obtained from a local or server, and further carrying out calculation to obtain related data for directly drawing to a screen.