CN116700866A - Window rendering method, device, and electronic device - Google Patents

Abstract

The application discloses a window drawing method, a window drawing device and electronic equipment, and belongs to the technical field of communication. The window drawing method comprises the following steps: style attribute information of a starting window of each application program is stored in a memory; receiving input for starting a target application program; responding to the input, and reading style attribute information of a starting window of the target application program from the memory; and drawing the starting window of the target application program according to the style attribute information of the starting window of the target application program.

Description

Window rendering method, device, and electronic device

technical field

The present application belongs to the technical field of communications, and in particular relates to a window drawing method, device, and electronic equipment.

Background technique

In the Android system, all resources of some recently used applications are usually cached in memory. When the user starts the application by clicking the desktop icon, the system obtains some attribute information such as the theme according to the resources of the application, and sets the style and style of the startup window. If the resource data of the application is cached in the memory, it can be directly read from the memory without loading from the disk, thereby improving the startup speed and response speed of the application. However, the memory space is limited, and the memory occupied by all the resources of the application is relatively large, so the number of applications that can be cached in the memory is limited, usually only a few, and the probability of hitting the cache when starting the application is relatively low. If there is no If it hits the cache, it needs to be loaded from the disk, which is inefficient.

Contents of the invention

The purpose of the embodiments of the present application is to provide a window drawing method, device, and electronic device, which improve the cache hit rate and improve the efficiency of drawing the startup window of the application program.

In the first aspect, the embodiment of the present application provides a window drawing method, the method comprising:

Store the style attribute information of the startup window of each application program into the memory;

receiving input to launch the target application;

In response to the input, read the style attribute information of the startup window of the target application program from the memory;

Draw the start window of the target application program according to the style attribute information of the start window of the target application program.

In the second aspect, the embodiment of the present application provides a window drawing device, including:

The storage module is used to store the style attribute information of the startup window of each application program into the memory;

A receiving module, configured to receive an input for starting a target application program;

A reading module, configured to read the style attribute information of the startup window of the target application program from the memory in response to the input;

A drawing module, configured to draw the start window of the target application program according to the style attribute information of the start window of the target application program.

In a third aspect, the embodiment of the present application provides an electronic device, including a processor and a memory, the memory stores programs or instructions that can run on the processor, and when the programs or instructions are executed by the processor The steps of the method described in the first aspect are realized.

In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a program or an instruction is stored, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented .

In the fifth aspect, the embodiment of the present application provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions, so as to implement the first aspect the method described.

In a sixth aspect, an embodiment of the present application provides a computer program product, the program product is stored in a storage medium, and the program product is executed by at least one processor to implement the method described in the first aspect.

In the embodiment of the present application, the style attribute information of the start-up window of each application is stored in the memory, the input of starting the target application is received, and in response to the input, the style attribute information of the start-up window of the target application is read from the memory. The style attribute information is used to draw the startup window of the target application according to the style attribute information of the startup window of the target application. In this technical solution, the style attribute information of the startup window of each application is stored in the memory, and when the input of starting the target application is received, the style attribute information of the startup window of the target application can be quickly read from the memory , and draw the startup window of the target application based on the style attribute information, which improves the efficiency of drawing the startup window of the application; since the memory occupied by the style attribute information of the application is much smaller than the resource data of the application, the memory usage is reduced Occupancy, storing more style attribute information of the application in the limited cache, improving the hit rate of the cache.

Description of drawings

FIG. 1 is a schematic flowchart of a window drawing method provided by an embodiment of the present application;

Fig. 2 is a window starting effect comparison diagram between the window drawing method applying the embodiment of the present application and the window drawing method not applying the embodiment of the present application;

Fig. 3 is a schematic structural diagram of a window drawing device provided by an embodiment of the present application;

FIG. 4 is a schematic structural diagram of an electronic device provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of hardware of an electronic device provided by an embodiment of the present application.

Detailed ways

The following will clearly describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It should be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application can be practiced in sequences other than those illustrated or described herein, and that references to "first," "second," etc. distinguish Objects are generally of one type, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the specification and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

The window activation method provided by the embodiment of the present application will be described in detail below through specific embodiments and application scenarios with reference to the accompanying drawings.

The execution subject of the window drawing method provided in the embodiment of the present application may be an electronic device, or a functional module or a functional entity in the electronic device capable of implementing the window drawing method. Wherein, the electronic devices described in the embodiments of the present application include, but are not limited to: smart phones, tablet computers, computers, laptop computers (notebook computers), smart wearable devices, and the like. The window drawing method provided by the embodiment of the present application will be described below by taking an electronic device as an execution subject as an example.

Fig. 1 shows a schematic flowchart of a window drawing method according to an embodiment of the present application. As shown in FIG. 1, the method may include step S101-step S105.

Step S101, storing the style attribute information of the startup window of each application program into the memory.

Wherein, the style attribute information is used to indicate the style and style of the starting window (startingWindow). Optionally, the style attribute information of the application program can be determined from the resource data (resource file) of the application program. The style attribute information may include one or more attribute fields, such as but not limited to: window style, window background, window transparency, and so on. Since the style attribute information includes one or more attribute fields, the memory occupied by it is small (for example, tens to hundreds of bytes), which is much smaller than the memory occupied by the resource data of the application, even if it saves 100-200 The style attribute information of an application, and the memory usage will not exceed 1MB. Therefore, more style attribute information of the application program can be stored in the memory, that is, more style attribute information can be stored at a lower storage cost, and the cache utilization rate is high and the cache hit rate is high. In the memory, the style attribute information of the application program can be cached with the identifier (such as the package name) as the key.

The starting window (startingWindow) is an animation enlarged window where the application changes from a desktop icon to an application interface, and is a temporary window displayed before the application process is created and initialized successfully. When the user clicks the application icon to start the application, a starting Window is created, and the created starting Window is returned to the desktop, and the desktop uses the startup window for animation. When the animation starts, the user perceives that the system has responded to the current startup operation (that is, generated Touch response), when the application loads the first frame of the page, the starting Window disappears and the main interface of the application is displayed. If the interval between the end of the user-initiated operation and the start of the animation is relatively small, the touch response and chirality perceived by the user will be good. Setting the Starting Window can reduce the click response delay and reduce the user's waiting time. In an optional implementation scenario, the developer of the application program can customize the resource data of the configuration application program, that is, customize the style attribute information of the configuration application, so as to realize the customization of the style and style of the startup window. The user clicks the application icon to start the application, and the electronic device pops up a startingWindow customized for the application.

In an optional embodiment, the window drawing method may store the style attribute information of the startup windows of each application program in the memory when a boot operation is detected. For example, the style attribute information of the startup window of each application program may be read from the disk and stored in the memory. Wherein, the style attribute information of the startup windows of all applications installed on the electronic device can be stored in the memory, and the style attribute information of the startup windows of some application programs can also be stored in the memory, which is not limited in this application. Optionally, the electronic device may determine the application program to be cached according to a preset cache policy when the power-on operation is detected, read the resource data of the application program to be cached from the memory or the disk, and retrieve the resource data from the resource The style attribute information of the application program to be cached is determined in the data; the style attribute information of the startup window of the application program to be cached is stored in the memory. The preset caching strategy is used to determine the application program to be cached that needs to cache the style attribute information from all the application programs on the electronic device. It can be understood that the application program to be cached can be part of the application program on the electronic device, or it can be is all applications. The preset caching policy can be flexibly set according to requirements, which is not limited in this application. As an example, the preset caching policy may include frequently used applications as applications to be cached. Frequently used applications may include applications whose use times are greater than or equal to a first threshold within a first time period, or may be included in the The application programs whose usage duration in the second time period is greater than or equal to the second threshold may also include several specified application programs. If the target application program belongs to the above-mentioned application program to be cached, the style attribute information of the start window of the target application program has been stored in the memory, and the memory can be hit when the target application program is started. If the target application program does not belong to the above-mentioned application programs to be cached, the style attribute information of the target application program is not in the memory, and the memory cannot be hit when the target application program is started.

Step S102, receiving an input to start the target application.

Wherein, the target application program may be any application program already installed on the electronic device. If it is detected that the user starts an application program on the electronic device, the application program started by the user is the target application program. Optionally, the user's input for starting the application program on the electronic device may be an operation of the user clicking a desktop icon of the application program, or an operation of the user starting the application program through a voice command.

Step S103, in response to the input, read the style attribute information of the startup window of the target application program from the memory.

Wherein, the style attribute information of the startup window may be stored in the memory by using the identifier of the application program (such as the package name) as a key. In the case of receiving the input to start the target application program, read the style attribute information of the target application program's startup window from the memory according to the identifier of the target application program.

Step S104, draw the start window of the target application program according to the style attribute information of the start window of the target application program.

After the style attribute information of the startup window of the target application is read, the startup window of the target application can be drawn according to the style attribute information, that is, the startup window of the target application can be drawn according to the style and style indicated by the style attribute information. window.

In the window drawing method of the embodiment of the present application, the style attribute information of the startup window of each application is stored in the memory, and the input of starting the target application is received, and in response to the input, the startup window of the target application is read from the memory. The style attribute information of the window is used to draw the startup window of the target application according to the style attribute information of the startup window of the target application. In this technical solution, the style attribute information of the startup window of each application is stored in the memory, and when the input of starting the target application is received, the style attribute information of the startup window of the target application can be quickly read from the memory , and draw the startup window of the target application based on the style attribute information, which improves the efficiency of drawing the startup window of the application; since the memory occupied by the style attribute information of the application is much smaller than the resource data of the application, the memory usage is reduced Occupancy, storing more style attribute information of the application in the limited cache, improving the hit rate of the cache.

As a specific example, FIG. 2 shows a comparison diagram of the startup effects of multiple application programs before and after applying the window drawing method of the embodiment of the present application. It can be seen from FIG. 2 that after applying the window drawing method of the embodiment of the present application, the touch response speed of the application program is greatly improved, and the startup time is significantly shortened.

In the embodiment of the present application, if the style attribute information of the startup window of the target application program does not exist in the memory, the resource data of the target application program can be read from the disk of the electronic device, and based on the resource data, the target application program can be determined The style attribute information of the startup window, draw the startup window of the target application according to the style attribute information, and save the style attribute information in the memory, so that the cache space can be hit when the target application is started later, and the touch control can be improved. Responsive speed, reducing startup time.

In an optional embodiment, the window drawing method further includes: in the case of detecting the operation of installing the first application program, reading the resource data of the first application program, and determining the start of the first application program according to the resource data The style attribute information of the window; adding the style attribute information of the startup window of the first application program to the memory.

When the user installs a new application program on the electronic device, the resource data of the application program newly installed by the user can be read, and the style attribute information of the startup window of the application program is obtained from the resource data, and the style attribute information is added to the In the memory, so that the memory can be hit when the application is started, the touch response speed is improved, and the startup time is reduced. In an optional embodiment, before adding the style attribute information of the startup window of the newly installed application to the memory, it is judged whether the memory can cache the style attribute information of the newly installed application. Wherein, it can be determined whether the size of the remaining available space of the memory is greater than or equal to the size of the style attribute information of the startup window of the newly installed application program, if so, it can be determined that the memory can also cache the style attribute of the startup window of the newly installed application program information, if not, you need to delete the style attribute information of the startup window of one or more application programs stored in the memory first, and then write the style attribute information of the startup window of the newly installed application program. As an optional example, the application program to be replaced (that is, the application program to be deleted) in the memory may be determined according to a preset replacement policy. The preset replacement policy may be an algorithm (Least Recently Used, LRUCache). According to the algorithm, under the condition that the number of style attribute information stored in the memory is constant, the style attribute information that has not been used for a long time can be eliminated each time. For example, a cache queue is maintained in the memory. If the cache queue is free, when writing style attribute information to the memory, the newly written style attribute information will be inserted into the head of the cache queue. When the cache queue is full, if a new style attribute information, delete the style attribute information at the end of the cache queue.

In an optional embodiment, the window startup method also includes:

When it is detected that the resource data of the second application program is updated, read the updated resource data;

According to the updated resource data, the style attribute information of the startup window of the second application program stored in the memory is updated.

Wherein, the resource data of the application program is updated including the application program package is updated or the user updates the theme of the application program. Therefore, if an application package update operation or a theme update operation is detected, the second application program corresponding to the application program package update operation or theme update operation can be determined, and the second application program can be determined according to the updated resource data of the second application program. The updated style attribute information of the application program, thereby updating the style attribute information of the startup window of the second application program stored in the memory.

The window rendering method provided in the embodiment of the present application may be executed by the window rendering device in the embodiment of the present application. In the embodiment of the present application, the window drawing device executed by the window drawing device is taken as an example to describe the window drawing device provided in the embodiment of the present application.

FIG. 3 shows a schematic structural diagram of a window drawing device according to an embodiment of the present application. As shown in Figure 3, the window drawing device 300 includes:

The storage module 301 is used to store the style attribute information of the startup window of each application program into the memory;

A receiving module 302, configured to receive an input for starting a target application;

A reading module 303, configured to read the style attribute information of the startup window of the target application program from the memory in response to the input;

The drawing module 304 is configured to draw the start window of the target application program according to the style attribute information of the start window of the target application program.

In an optional embodiment, the storage module is configured to: store the style attribute information of the startup window of each application program in the memory when a boot operation is detected.

In an optional embodiment, the storage module is configured to: read the style attribute information of the startup window of each application program from the disk when a boot operation is detected; Style attribute information is stored in memory.

In an optional embodiment, the storage module is further configured to: read resource data of the first application program when an operation of installing the first application program is detected, and determine the resource data of the first application program according to the resource data. The style attribute information of the startup window of the first application program; adding the style attribute information of the startup window of the first application program to the memory.

In an optional embodiment, the device further includes an update module, configured to: read the updated resource data when it is detected that the resource data of the second application program is updated; according to the updated resource data, Updating the style attribute information of the startup window of the second application program stored in the memory.

In an optional embodiment, the update module is configured to: read the updated resource when a package update operation for the second application or a theme update operation for the second application is detected data.

In the window drawing device of the embodiment of the present application, after detecting the operation of starting the target application program by the user, in response to the start operation of the target application program, read the target application program from the storage space for storing the style attribute information of multiple application programs If the style attribute information of the target application program is read, a startup window of the target application program is created and displayed according to the style attribute information. In this technical scheme, since the memory occupied by the style attribute information of the application program is much smaller than the resource data of the application program, more style attribute information of the application program can be stored in a limited cache to improve the hit rate of the cache and effectively reduce the The time from clicking to start the application to the start of the animation can not only ensure the touch response speed and startup time, but also reduce the memory usage, improve the user's chirality, and improve the user experience.

The window drawing apparatus in the embodiment of the present application may be an electronic device, or a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or other devices other than the terminal. Exemplarily, the electronic device may be a mobile phone, a tablet computer, a notebook computer, a handheld computer, a vehicle electronic device, a mobile Internet device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) device, robot, wearable device, ultra-mobile personal computer (ultra-mobile personalcomputer, UMPC), netbook or personal digital assistant (personal digital assistant, PDA), etc., and can also be a server, network attached storage (Network Attached Storage, NAS) , a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which are not specifically limited in this embodiment of the present application.

The window drawing device in the embodiment of the present application may be a device with an operating system. The operating system may be an Android (Android) operating system, or other possible operating systems, which are not specifically limited in this embodiment of the present application.

The window drawing device provided by the embodiment of the present application can realize various processes realized by the method embodiments in FIG. 1 to FIG. 3 , and details are not repeated here to avoid repetition.

Optionally, as shown in FIG. 4 , the embodiment of the present application also provides an electronic device 400, including a processor 401 and a memory 402, and the memory 402 stores programs or instructions that can run on the processor 401. The When the programs or instructions are executed by the processor 401, the steps of the above-mentioned window drawing method embodiments can be realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.

It should be noted that the electronic devices in the embodiments of the present application include the above-mentioned mobile electronic devices and non-mobile electronic devices.

FIG. 5 is a schematic diagram of a hardware structure of an electronic device implementing an embodiment of the present application.

The electronic device 500 includes, but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, and a processor 510, etc. part.

Those skilled in the art can understand that the electronic device 500 can also include a power supply (such as a battery) for supplying power to various components, and the power supply can be logically connected to the processor 510 through the power management system, so that the management of charging, discharging, and function can be realized through the power management system. Consumption management and other functions. The structure of the electronic device shown in FIG. 5 does not constitute a limitation to the electronic device. The electronic device may include more or fewer components than shown in the figure, or combine certain components, or arrange different components, and details will not be repeated here. .

Wherein, the processor 510 is configured to store the style attribute information of the startup window of each application in the memory; receive an input for starting the target application; and read the target application from the memory in response to the input The style attribute information of the startup window of the target application program; draw the startup window of the target application program according to the style attribute information of the startup window of the target application program.

In the electronic device provided by the present application, the style attribute information of the startup window of each application is stored in the memory, the input of starting the target application is received, and in response to the input, the startup window of the target application is read from the memory. The style attribute information of the window is used to draw the startup window of the target application according to the style attribute information of the startup window of the target application. In this technical solution, the style attribute information of the startup window of each application is stored in the memory, and when the input of starting the target application is received, the style attribute information of the startup window of the target application can be quickly read from the memory , and draw the startup window of the target application based on the style attribute information, which improves the efficiency of drawing the startup window of the application; since the memory occupied by the style attribute information of the application is much smaller than the resource data of the application, the memory usage is reduced Occupancy, storing more style attribute information of the application in the limited cache, improving the hit rate of the cache. Optionally, the processor 510 is further configured to store the style attribute information of the startup window of each application program in the memory when a startup operation is detected.

Optionally, the processor 510 is further configured to read, from the disk, the style attribute information of the startup window of each application program when a boot operation is detected; and store the style attribute information of the startup window of each application program to memory.

Optionally, the processor 510 is further configured to read resource data of the first application program when an operation of installing the first application program is detected, and determine the resource data of the first application program according to the resource data. The style attribute information of the startup window of the first application program; adding the style attribute information of the startup window of the first application program to the memory.

Optionally, the processor 510 is further configured to read updated resource data when it is detected that the resource data of the second application program is updated; and update the first resource data stored in the memory according to the updated resource data. Second, the style attribute information of the startup window of the application.

Optionally, the processor 510 is further configured to read updated resource data when a package update operation for the second application program or a theme update operation for the second application program is detected.

It should be understood that, in the embodiment of the present application, the input unit 504 may include a graphics processor (Graphics Processing Unit, GPU) 5041 and a microphone 5042, and the graphics processor 5041 is compatible with the image capture device (such as Camera) to process the image data of still pictures or videos. The display unit 506 may include a display panel 5061, and the display panel 5061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 507 includes at least one of a touch panel 5071 and other input devices 5072 . The touch panel 5071 is also called a touch screen. The touch panel 5071 may include two parts, a touch detection device and a touch controller. Other input devices 5072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.

The memory 509 can be used to store software programs as well as various data. The memory 509 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playing function, image playback function, etc.), etc. Furthermore, memory 509 may include volatile memory or nonvolatile memory, or, memory 509 may include both volatile and nonvolatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash. Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synch link DRAM , SLDRAM) and Direct Memory Bus Random Access Memory (Direct Rambus RAM, DRRAM). The memory 509 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

The processor 510 may include one or more processing units; optionally, the processor 510 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 510 .

The embodiment of the present application also provides a readable storage medium. The readable storage medium stores programs or instructions. When the program or instructions are executed by the processor, the various processes of the above-mentioned window activation method embodiments can be achieved, and the same To avoid repetition, the technical effects will not be repeated here.

Wherein, the processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk, and the like.

The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above window activation method embodiment Each process can achieve the same technical effect, so in order to avoid repetition, it will not be repeated here.

It should be understood that the chips mentioned in the embodiments of the present application may also be called system-on-chip, system-on-chip, system-on-a-chip, or system-on-a-chip.

The embodiment of the present application provides a computer program product, the program product is stored in a storage medium, and the program product is executed by at least one processor to implement the various processes in the above-mentioned window activation method embodiment, and can achieve the same technical effect , to avoid repetition, it will not be repeated here.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , optical disc), including several instructions to enable a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims (13)

1. A window drawing method, characterized in that, comprising: Store the style attribute information of the startup window of each application program into the memory; receiving input to launch the target application; In response to the input, read the style attribute information of the startup window of the target application program from the memory; Draw the start window of the target application program according to the style attribute information of the start window of the target application program. 2. The method according to claim 1, wherein storing the style attribute information of the startup window of each application program in the memory comprises: When the boot operation is detected, the style attribute information of the startup window of each application program is stored in the memory. 3. The method according to claim 2, wherein, in the case of detecting a power-on operation, storing the style attribute information of the startup window of each application program in the memory includes: When the boot operation is detected, the style attribute information of the startup window of each application program is read from the disk; Storing the style attribute information of the startup windows of the various application programs in the memory. 4. The method according to claim 1, wherein the method further comprises: When the operation of installing the first application program is detected, the resource data of the first application program is read, and the style attribute information of the startup window of the first application program is determined according to the resource data; Adding style attribute information of the startup window of the first application program to the memory. 5. The method according to claim 1, wherein the method further comprises: When it is detected that the resource data of the second application program is updated, read the updated resource data; The style attribute information of the startup window of the second application program stored in the memory is updated according to the updated resource data. 6. The method according to claim 5, wherein when it is detected that the resource data of the second application program is updated, reading the updated resource data comprises: In case a package update operation for the second application program or a theme update operation for the second application program is detected, the updated resource data is read. 7. A window drawing device, characterized in that it comprises: The storage module is used to store the style attribute information of the startup window of each application program into the memory; A receiving module, configured to receive an input for starting a target application program; A reading module, configured to read the style attribute information of the startup window of the target application program from the memory in response to the input; A drawing module, configured to draw the start window of the target application program according to the style attribute information of the start window of the target application program. 8 . The device according to claim 7 , wherein the storage module is configured to: store the style attribute information of the startup window of each application program in the memory when a boot operation is detected. 9. The device according to claim 8, wherein the storage module is configured to: when a boot operation is detected, read the style attribute information of the startup window of each application program from a disk; The style attribute information of the startup window of each application program is stored in the memory. 10. The device according to claim 7, wherein the storage module is also used for: When the operation of installing the first application program is detected, the resource data of the first application program is read, and the style attribute information of the startup window of the first application program is determined according to the resource data; Adding style attribute information of the startup window of the first application program to the memory. 11. The device according to claim 7, further comprising an update module, configured to: When it is detected that the resource data of the second application program is updated, read the updated resource data; The style attribute information of the startup window of the second application program stored in the memory is updated according to the updated resource data. 12. The device according to claim 11, wherein the update module is used for: In case a package update operation for the second application program or a theme update operation for the second application program is detected, the updated resource data is read. 13. An electronic device, characterized in that it includes a processor and a memory, the memory stores programs or instructions that can run on the processor, and when the programs or instructions are executed by the processor, the implementation of the claims The steps of the window drawing method described in any one of 1-6.