CN115134318A - Application program and chatting method capable of realizing synchronous same-screen real-time hand drawing by user - Google Patents
Application program and chatting method capable of realizing synchronous same-screen real-time hand drawing by user Download PDFInfo
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- CN115134318A CN115134318A CN202210685833.0A CN202210685833A CN115134318A CN 115134318 A CN115134318 A CN 115134318A CN 202210685833 A CN202210685833 A CN 202210685833A CN 115134318 A CN115134318 A CN 115134318A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
- H04L51/04—Real-time or near real-time messaging, e.g. instant messaging [IM]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/958—Organisation or management of web site content, e.g. publishing, maintaining pages or automatic linking
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/20—Drawing from basic elements, e.g. lines or circles
- G06T11/203—Drawing of straight lines or curves
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
- H04L51/07—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail characterised by the inclusion of specific contents
- H04L51/08—Annexed information, e.g. attachments
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0807—Network architectures or network communication protocols for network security for authentication of entities using tickets, e.g. Kerberos
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
- H04L69/162—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields involving adaptations of sockets based mechanisms
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Abstract
The invention discloses an application program and a chat method for a user to synchronously and manually draw on the same screen in real time, which comprise the following steps: s1: the user a (the initiator) logs in and reads its contact list by sending the user uuid (the unique identification code of the user at the back end of the program) and the IP to which it belongs to the server database to obtain the server token. The invention can enable two or more users to simultaneously and independently transmit respective information by hand drawing and simultaneously and synchronously clearing at any time under the same background, all data streams are discarded when being transmitted to the terminal, and data records are not stored in the user terminal, each received data packet is read by a program, and is discarded when being not stored in the terminal, thereby solving the problem that the terminal system is slow in processing due to the accumulation of terminal data.
Description
Technical Field
The invention relates to the technical field of mobile phone end internet, in particular to an application program and a chat method capable of realizing synchronous same-screen real-time hand drawing by a user.
Background
The existing application program is not only information communication of characters, pictures, voice or video, but also information communication of voice or video on the market at present, written information communication cannot realize synchronous real-time sharing of one picture and the other side at the same time, the existing written information communication is that a user converts the real intention of the user through auxiliary modes of input methods and the like and then sends the converted real intention to a receiving party, therefore, it is likely that when sending, the user selects wrong words when inputting pinyin or other input methods and sends unintended information, and at present, chat records are almost stored in the terminal device of the user by the chat application programs in the market, so that more and more contents are accumulated, and the operation of the terminal is seriously affected if the user does not clear the chat application programs, and the more mobile phone capacity occupied by the chat application software is used.
Disclosure of Invention
The invention aims to: the application program and the chat method are provided, which can be synchronously and manually drawn on the same screen by a user in real time, in order to solve the problems that the sent content is the real intention of a sender, and the chat records are almost stored on user terminal equipment by the chat application program in the current market, the content is accumulated more and more day by day, and the operation of the terminal is seriously influenced by the user without clearing up the chat application program, so that the occupied mobile phone capacity of the chat application software is larger.
In order to achieve the purpose, the invention adopts the following technical scheme:
a chat method for a user to synchronously and manually draw on the same screen in real time comprises the following steps:
s1: a, a user (an initiator) logs in and reads a contact list of the user through sending a user uuid (a unique identification code of a program back-end user) and an IP (Internet protocol) of the user uuid and a server token acquired by a server database by the program;
s2: a, a user (an initiator) selects one or more contacts to initiate a real-time synchronous on-screen information exchange request, then a selected contact list is sent to a server, and the server sends a real-time synchronous on-screen information exchange invitation to contacts IP in the list after receiving the list;
s3: after the invitation is allowed, the user A (initiator) starts the connection confirmation of the WebSocket full duplex and the invitee, and the WebSocket connection allows the full duplex communication between the client and the server, so that any party can push data to the other end through the established connection;
s4, each terminal is overlapped by three different drawing boards, wherein one drawing board is used for displaying the point location coordinate drawn by the current terminal, the other drawing boards are respectively used for drawing the point location coordinate transmitted by the websocket, the information packet of each data stream comprises a JSON character string starting point location X coordinate (lastcoordinate. X) and a starting point location Y coordinate (lastcoordinate. Y), the XY coordinate of the starting point can determine the determined position of the starting point on the drawing board, the X coordinate of the end point location (currodinate. X) and the Y coordinate of the end point location (currodinate. Y), and the XY coordinate of the end point can determine the determined position of the end point on the drawing board;
s5, when one side exits the packet exchange of the data stream, i.e. equals to exiting the websocket connection, the connection is ended. As a further description of the above technical solution:
the drawing board comprises a first drawing board, a second drawing board and a third drawing board, the first drawing board is used for drawing an area for a sender to use and also used for collecting X and Y values of the sender through a program, the second drawing board is used for drawing patterns according to the values sent by the sender, and the third drawing board displays pictures shared by all the parties synchronously.
A user-synchronized on-screen real-time hand-drawn application, comprising:
s101: after a user (an initiator) initiates a start of a synchronous session, point location data drawn or wiped on a drawing board of a local screen L is collected and packaged, and meanwhile, a data packet remotely sent by a user B (an invitee) is received;
s102: after point location data drawn or wiped on the local screen L drawing board is collected and packaged, the point location data is discarded after being displayed on the local screen L drawing board A and fed back to the previous step, and meanwhile, a point location data packet is sent to a user B (invited party) terminal;
s103: after receiving a data packet remotely sent by a user B (an invited party), reading the point location information of the data packet, displaying the point location information on a drawing board of a local screen R according to the point location, and then discarding the data packet;
s201: after a user (an invited party) receives the request and starts synchronous same-screen image drawing conversation at the same time, collecting and packing point position data of a touch screen for drawing or erasing the image, and receiving a data packet remotely sent by a user (an initiating party);
s202: after point location data of a touch screen for drawing or erasing images are collected and packaged, the point location data are sent to a user (initiator) terminal A, and meanwhile the point location data are discarded after being displayed on a local screen L picture of a user (invited) B and fed back to the previous step;
s203: after receiving a data packet sent by a user A (initiator) remotely, reading the point location information of the data packet, displaying the point location information on a drawing board of a local screen R of a user B (invitee), and then discarding the data packet.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. when the system is used, an application program installed on a client can enable a user to click at any time to start using, after the user sends a request by selecting a contact person, the client sends the request to a server and starts a drawing screen area to wait for access, the server pushes request information to a receiver after receiving the request of a sender, the receiver waits for adding, after the receiver adds, all parties start drawing required pattern information, synchronously observe the drawing content of the other party in real time, and the coordinate values of X and Y axes of different point positions are given according to the track drawn by the fingers of the user on the screen by using the full duplex principle of an Internet websocket protocol and are transmitted to the receiver in real time; meanwhile, the coordinate values of X and Y axes transmitted by the receiver are synchronously received and are drawn or erased on the same screen according to the values, so that two or more users can synchronously and independently transmit respective information by hand drawing and synchronously clearing at any time under the same background, the invention can completely synchronously restore the actual real intention of the sender for sending drawing or altering information in real time, the information of handwritten characters can avoid the need of converting the character information between the actual expression of the sender and the character information input by auxiliary modes such as a keyboard input method and the like, and simultaneously, the record files such as characters and the like can not be left at terminals of all parties, the instant synchronization and same-screen mode uses a data stream mode to carry out information exchange, a user can erase the drawing content while drawing, and all data streams are transmitted to the terminal, namely, the data stream is discarded without leaving a storage data record at the user terminal.
2. In the invention, each received data packet is read by a program, namely, the received data packet is discarded and is not stored in the terminal, the problem that the terminal system is slow in processing due to the accumulation of terminal data is solved, and the invited terminal equipment can draw lines of a user only by receiving the packet in the data stream containing the information, and the line erasing is also the same.
Drawings
Fig. 1 is a schematic diagram illustrating a communication connection structure between an a-subscriber and a B-subscriber provided in an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating an application storage processing structure that a user can synchronize the same-screen real-time hand-drawing according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating a structure that an A user and a B user simultaneously draw 2D content on the same screen in a synchronous manner according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating a structure of a portion of a pattern drawn by a user a and a user B respectively according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating a structure that an a user and a B user simultaneously draw 3D content on the same screen in synchronization according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a chat method that a user can synchronously and simultaneously draw on the same screen by hand in real time comprises the following steps:
s1: a, a user (an initiator) logs in and reads a contact list of the user through sending a user uuid (a unique identification code of a program back-end user) and an IP (Internet protocol) of the user uuid and a server token acquired by a server database by the program;
s2: a, a user (an initiator) selects one or more contacts to initiate a real-time synchronous on-screen information exchange request, then a selected contact list is sent to a server, and the server sends a real-time synchronous on-screen information exchange invitation to contacts IP in the list after receiving the list;
s3: after the invitation is allowed, the user A (initiator) starts the connection confirmation of the WebSocket full duplex and the invitee, and the WebSocket connection allows full duplex communication between the client and the server, so that any party can push data to the other end through the established connection;
s4, each terminal is overlapped by three different drawing boards, wherein one drawing board is used for displaying the point location coordinate drawn by the current terminal, the other drawing boards are respectively used for drawing the point location coordinate transmitted by the websocket, the information packet of each data stream comprises a JSON character string starting point location X coordinate (lastcoordinate. X) and a starting point location Y coordinate (lastcoordinate. Y), the XY coordinate of the starting point can determine the determined position of the starting point on the drawing board, the X coordinate of the end point location (currodinate. X) and the Y coordinate of the end point location (currodinate. Y), and the XY coordinate of the end point can determine the determined position of the end point on the drawing board;
s5, when one party quits the data flow information packet exchange, namely, the connection is equal to quit the websocket connection, the connection is finished; WebSocket is an independent protocol established on TCP, the Websocket performs handshake through 101 state codes of HTTP/1.1 protocol, in order to establish Websocket connection, a request needs to be sent out through a browser, then a server responds, the process is generally called 'handshake', the WebSocket is characterized by low control overhead, when data are exchanged between the server and a client after connection establishment, a data packet header used for protocol control is relatively small, and under the condition that no extension is included, the header size is only 2-10 bytes (related to the data packet length) for contents from the server to the client; for the content from the client to the server, the header also needs to be added with an additional 4-byte mask, and compared with the situation that an HTTP request carries a complete header each time, the overhead is obviously reduced, the real-time performance is higher, the protocol is full-duplex, so that the server can actively send data to the client at any time, and compared with the HTTP request, the client needs to wait for a request server to respond, and the delay is obviously less; it can deliver data more times in a short time even in comparison with Comet and the like, which are long polls; unlike HTTP, Websocket needs to create a connection first, which makes it a stateful protocol, and then part of state information may be omitted during communication, and HTTP requests may need to carry state information (such as identity authentication) in each request.
Specifically, as shown in fig. 3 to 5, the drawing board includes a first drawing board, a second drawing board and a third drawing board, the first drawing board is used for drawing for a sender and is also used for collecting an area of X and Y values of the sender by a program, the second drawing board is used for drawing a pattern according to a value sent by the sender, and the third drawing board displays a picture shared by all parties synchronously, so that three drawing boards are overlapped together, real-time synchronous on-screen drawing information communication between the sender and a receiver can be realized, real-time synchronous on-screen information communication is performed by using a data stream mode, a user can erase drawing contents while drawing, all data streams are received by an invitation terminal, information packets in the data streams are read, and XY coordinate points in the information packets are displayed at the terminal, and then data records are discarded without being stored in a user terminal, so that space occupation caused by terminal data accumulation and system operation delay can be solved by storing other traditional network chat information at the terminal The line speed and the drawn lines can not only be limited to various colors of single color and pure color, but also be formed by connecting color or various small pictures.
Referring to fig. 1-5, the present invention provides another technical solution: a user-synchronized on-screen real-time hand-drawn application, comprising:
s101: after a user (an initiator) initiates a synchronous session, point location data drawn or wiped on a drawing board of a local screen L is collected and packaged, and meanwhile, a data packet sent by a user B (an invitee) remotely is received;
s102: after point location data drawn or wiped on the local screen L drawing board is collected and packaged, the point location data is discarded after being displayed on the local screen L drawing board A and fed back to the previous step, and meanwhile, a point location data packet is sent to a user B (invited party) terminal;
s103: after receiving a data packet remotely sent by a user B (an invited party), reading the point location information of the data packet, displaying the point location information on a drawing board of a local screen R according to the point location, and then discarding the data packet;
s201: after the user (invited party) receives the request and starts synchronous same-screen image drawing conversation, point location data of a touch screen for drawing or erasing the image is collected and packaged, and meanwhile, a data packet remotely sent by the user (initiating party) A is received;
s202: after point location data of a touch screen for drawing or erasing images are collected and packaged, the point location data are sent to a user (initiator) terminal A, and meanwhile the point location data are discarded after being displayed on a local screen L picture of a user (invited) B and fed back to the previous step;
s203: after receiving a data packet sent by a user A (initiator) remotely, reading the point location information of the data packet, displaying the point location information on a drawing board of a local screen R of a user B (invitee), and then discarding the data packet.
The working principle is as follows: when the system is used, an application program installed on a client can enable a user to click at any time to start using, after the user sends a request by selecting a contact person, the client sends the request to a server and starts a drawing screen area to wait for access, the server pushes request information to a receiver after receiving the request of a sender, waits for the receiver to join, starts drawing required pattern information after each party joins the receiver, synchronously observes drawing contents of the other party in real time, and gives X and Y axis coordinate values of different point positions according to a track drawn by a finger of the user on a screen by using a full duplex principle of an Internet websocket protocol and transmits the X and Y axis coordinate values to the receiver in real time; and simultaneously, the coordinate values of the X axis and the Y axis transmitted by the receiver are synchronously received, and the coordinate values are drawn or erased on the same screen according to the values.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. A chat method that a user can synchronously and manually draw on the same screen in real time is characterized by comprising the following steps:
s1: a user (initiator) logs in and reads a contact list of the user through sending the user uuid (unique identification code of a program back-end user) and the IP to which the user uuid belongs to a server database to acquire a server token by the program;
s2: a, a user (an initiator) selects one or more contacts to initiate a real-time synchronous on-screen information exchange request, then a selected contact list is sent to a server, and the server sends a real-time synchronous on-screen information exchange invitation to contacts IP in the list after receiving the list;
s3: after the invitation is allowed, the user A (initiator) starts the connection confirmation of the WebSocket full duplex and the invitee, and the WebSocket connection allows the full duplex communication between the client and the server, so that any party can push data to the other end through the established connection;
s4, each terminal is overlapped by three different drawing boards, wherein one drawing board is used for displaying a point coordinate drawn by the current terminal, the other drawing boards are respectively used for drawing the point coordinate transmitted by the websocket, an information packet of each data stream comprises a JSON character string starting point position X coordinate (lastcoordinate. X) and starting point position Y coordinate (lastcoordinate. Y), the XY coordinate of the starting point can determine the determined position of the starting point on the drawing board, the X coordinate of the end point position (currcoordinate. X) and the Y coordinate of the end point position (currcoordinate. Y), and the XY coordinate of the end point can determine the determined position of the end point on the drawing board;
s5, when one side exits the packet exchange of the data stream, i.e. equals to exiting the websocket connection, the connection is ended.
2. The method according to claim 1, wherein the drawing boards comprise a first drawing board, a second drawing board and a third drawing board, the first drawing board is used for drawing an area for a sender, the area is also used for collecting X and Y values of the sender, the second drawing board is used for drawing a pattern according to a value sent by the sender, and the third drawing board displays a picture shared by all parties synchronously.
3. An application that a user can synchronize real-time hand-drawings on the same screen, comprising:
s101: after a user (an initiator) initiates a synchronous session, point location data drawn or wiped on a drawing board of a local screen L is collected and packaged, and meanwhile, a data packet sent by a user B (an invitee) remotely is received;
s102: after point location data drawn or wiped on the local screen L drawing board is collected and packaged, the point location data is discarded after being displayed on the local screen L drawing board A and fed back to the previous step, and meanwhile, a point location data packet is sent to a user B (invited party) terminal;
s103: after receiving a data packet remotely sent by a user B (an invited party), reading the point location information of the data packet, displaying the point location information on a drawing board of a local screen R according to the point location, and then discarding the data packet;
s201: after the user (invited party) receives the request and starts synchronous same-screen image drawing conversation, point location data of a touch screen for drawing or erasing the image is collected and packaged, and meanwhile, a data packet remotely sent by the user (initiating party) A is received;
s202: after point location data of a touch screen for drawing or erasing an image are collected and packaged, the point location data are sent to a user (initiator) terminal A, and meanwhile the point location data are discarded and fed back to the previous step after being displayed on a local screen L picture of a user (invited party);
s203: after receiving a data packet sent by a user A (initiator) remotely, reading the point location information of the data packet, displaying the point location information on a drawing board of a local screen R of a user B (invitee), and then discarding the data packet.
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