CN108304294B - Real-time frame number monitoring method, storage medium, equipment and system for IOS application - Google Patents

Real-time frame number monitoring method, storage medium, equipment and system for IOS application Download PDF

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CN108304294B
CN108304294B CN201810064284.9A CN201810064284A CN108304294B CN 108304294 B CN108304294 B CN 108304294B CN 201810064284 A CN201810064284 A CN 201810064284A CN 108304294 B CN108304294 B CN 108304294B
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frame number
cadisplaylink
time
interval
timestamp
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CN108304294A (en
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张骏
张文明
陈少杰
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Wuhan Douyu Network Technology Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
    • G06F11/3409—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment for performance assessment
    • G06F11/3419—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment for performance assessment by assessing time
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/3003—Monitoring arrangements specially adapted to the computing system or computing system component being monitored
    • G06F11/302—Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system component is a software system
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/3051—Monitoring arrangements for monitoring the configuration of the computing system or of the computing system component, e.g. monitoring the presence of processing resources, peripherals, I/O links, software programs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/30—Creation or generation of source code

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Abstract

The invention discloses a real-time frame number monitoring method, a storage medium, equipment and a system for IOS application, relating to the technical field of IOS application.A CADisplayLink is created when the class of Objective-C is initialized by defining the class of Objective-C and realizing the loading of a single case, and the CADisplayLink is registered in an IOS operation cycle; and calling a callback method bound on the CADisplayLink to calculate the current frame number each time the IOS operation cycle is ended. The scheme realizes real-time frame number monitoring by defining the class of Objective-C, has small code required for developing the class of Objective-C at the IOS mobile terminal and small memory occupied during operation, and therefore, the scheme can realize effective management of the real-time frame number of the IOS application of the mobile terminal after the IOS application is released by the mobile terminal.

Description

Real-time frame number monitoring method, storage medium, equipment and system for IOS application
Technical Field
The invention relates to the technical field of IOS application, in particular to a real-time frame number monitoring method, a storage medium, equipment and a system for IOS application.
Background
In the development process of mobile applications, some performance bottlenecks may be encountered, for example, the execution of programs is stuck or the memory cannot be released correctly, and thus, the performance bottlenecks cannot be monitored or fed back well. A general method is to connect a mobile phone to a computer and monitor the mobile phone by using an Instrument tool attached to an Xcode (an integrated development tool on a Mac OS X operating system). The Instrument tool carried by the Xcode is a tool set existing in an independent APP form, and comprises a plurality of powerful detection functions: including performing performance tests on the real machine and simulator, performing performance analysis on the APP, and checking the behavior of one or more applications or processes. The Instrument tool is mainly used for finding problems at any time in the debugging process and optimizing in time. However, the Instrument tool can only be used by programmers with application source codes, and therefore, the Instrument tool needs to be connected with a computer, and cannot measure the performance of a user in a real use scene, that is, the running condition of the IOS application cannot be effectively managed after the IOS application is released.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method, a storage medium, equipment and a system for monitoring the real-time frame number of an IOS application, so as to realize the effective management of the real-time frame number of the IOS application after the IOS application is released.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a real-time frame number monitoring method of IOS application comprises the following steps:
defining an Objective-C class and realizing the loading of the singleton class; creating a timer CADisplayLink when the class of the Objective-C is initialized, binding a callback method of the CADisplayLink, and registering the CADisplayLink in an IOS (operation operating system) operation cycle;
calling a callback method bound on the CADisplayLink to calculate the current frame number each time the IOS operation cycle is finished; the callback method comprises the following steps:
reading an attribute frame interval from the CADisplayLink, calculating the time interval of two calls according to the timestamp of calling the CADisplayLink at present and the timestamp of calling the CADisplayLink at the last time, accumulating the attribute frame interval of calling the CADisplayLink at each time in the time interval to obtain the accumulated frame number in the time interval, and dividing the accumulated frame number by the time interval to calculate the current frame number.
On the basis of the technical scheme, three attributes are added in the object-C class: accumulating the number of frames, accumulating the time interval and the timestamp called last time;
calling a callback method bound on the CADisplayLink to calculate the current frame number comprises the following steps:
calling a callback method bound on the CADisplayLink, reading a timestamp when the CADisplayLink is called, and accumulating the attribute frame interval of the CADisplayLink to the accumulated frame number;
judging the difference value between the timestamp and the timestamp called last time, and if the difference value is smaller than a preset difference value threshold value, accumulating the difference value between the current timestamp and the timestamp called last time into an accumulated time interval; if the value is larger than or equal to the preset difference threshold value, dividing the accumulated frame number by the accumulated time interval to obtain the current frame number, juxtaposing the empty accumulated frame number and the accumulated time interval, and setting the value of the timestamp called last time as the timestamp.
On the basis of the technical scheme, the preset difference threshold is 0.5 second.
On the basis of the technical scheme, the default value of the attribute frame interval is 1.
The invention also discloses a storage medium, on which a computer program is stored: the computer program, when executed by a processor, implements a real-time frame number monitoring method for an IOS application.
The invention also discloses an electronic device, comprising a memory and a processor, wherein the memory is stored with a computer program running on the processor: the processor implements a real-time frame number monitoring method for IOS applications when executing a computer program.
The invention also discloses a real-time frame number monitoring system for IOS application, which comprises:
the class creating module is used for defining an Objective-C class and realizing the loading of the class singleton;
a timer creating module, configured to create a CADisplayLink when the object-C class is initialized, bind a callback method of the CADisplayLink, and register the CADisplayLink in an IOS operation cycle;
the current frame number calculating module is used for calling a callback method bound on the CADisplayLink to calculate the current frame number each time the IOS operation cycle is ended; the callback method comprises the following steps:
reading an attribute frame interval from the CADisplayLink, calculating the time interval of two calls according to the timestamp of calling the CADisplayLink at present and the timestamp of calling the CADisplayLink at the last time, accumulating the attribute frame interval of calling the CADisplayLink at each time in the time interval to obtain the accumulated frame number in the time interval, and dividing the accumulated frame number by the time interval to calculate the current frame number.
On the basis of the technical scheme, the class creating module is used for adding three attributes in the Objective-C class: accumulating the number of frames, accumulating the time interval and the timestamp called last time;
the current frame number calculating module is used for calling a callback method bound on the CADisplayLink, reading a timestamp when the CADisplayLink is called, and accumulating the attribute frame interval of the CADisplayLink to the accumulated frame number;
judging the difference value between the timestamp and the timestamp called last time, and if the difference value is smaller than a preset difference value threshold value, accumulating the difference value between the current timestamp and the timestamp called last time into an accumulated time interval; if the value is larger than or equal to the preset difference threshold value, dividing the accumulated frame number by the accumulated time interval to obtain the current frame number, juxtaposing the empty accumulated frame number and the accumulated time interval, and setting the value of the timestamp called last time as the timestamp.
On the basis of the technical scheme, the preset difference threshold is 0.5 second.
On the basis of the technical scheme, the default value of the attribute frame interval is 1.
Compared with the prior art, the invention has the advantages that:
the invention realizes the loading of the single case by defining the class of Objective-C, creates the CADisplayLink when the class of Objective-C is initialized, and registers the CADisplayLink in the IOS operation cycle; and calling a callback method bound on the CADisplayLink to calculate the current frame number each time the IOS operation cycle is ended. The scheme realizes real-time frame number monitoring by defining the class of Objective-C, has small code required for developing the class of Objective-C at the IOS mobile terminal and small memory occupied during operation, and therefore, the scheme can realize effective management of the real-time frame number of the IOS application of the mobile terminal after the IOS application is released by the mobile terminal.
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FIG. 1 is a schematic flow chart of a real-time frame number monitoring method for IOS application according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a real-time frame number monitoring system for IOS application according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The terms of the invention are explained and illustrated first:
Objective-C: Objective-C applies mainly to the writing of IOS operating systems and IOS applications. It is a very small runtime written with C, which makes the size of the application increase very small, and most OO (Object Oriented) systems use very large VM execution time to replace the whole system operation, whereas Objective-C is usually not much larger than its original code. The library is also the opposite of the Smalltalk system which uses very large memory to open a window. Meanwhile, Objective-C is fully compatible with the standard C language.
Class and attribute of Objective-C: a class is a feature whose core supports object-oriented programming and Objective-C, and is commonly referred to as a user-defined type. A class is a form used to specify objects that combine data representation and methods to manipulate the data into an ordered package. Attributes of a class are instance variables that are used to provide access to the class of other classes.
Realizing class singleton loading: i.e. to ensure that a class generates only one instance object.
A timer: namely, CADisplayLink, which is a timer that can draw content onto a screen at the same frequency as the screen refresh rate. A new CADisplayLink object is created in the application, added to a runloop, and provided with a target and selector to call at screen refresh. Once the CADisplayLink is registered in runloop in a specific mode, runloop calls a selector on the target bound by the CADisplayLink whenever the screen needs to be refreshed, and the target can read the timestamp of each call of the CADisplayLink to prepare the data required by the display of the next frame.
Attribute interval frame: attribute interval frame, frame interval. The frameInterval attribute is a readable and writable NSInteger type value, a selector method that identifies how many frames apart the CADisplayLink is called once, and a default value of 1, i.e., called once per frame. If this refresh frequency is 60HZ for an IOS device, i.e., 60 per second, if the frame interval is set to 2, then two frame calls, i.e., 30 refreshes per second, are made.
Example 1:
referring to fig. 1, an embodiment of the present invention provides a method for monitoring a real-time frame number of an IOS application:
s1, defining an Objective-C class and realizing the loading of the singleton class;
s2, creating a CADisplayLink when the object-C class is initialized, binding a callback method of the CADisplayLink, and registering the CADisplayLink in an IOS operation cycle;
s3, calling a callback method bound on the CADisplayLink to calculate the current frame number each time the IOS operation cycle is finished; the callback method comprises the following steps:
reading an attribute frame interval from the CADisplayLink, calculating the time interval of two calls according to the time stamp of calling the CADisplayLink at present and the time stamp of calling the CADisplayLink at the last time, accumulating the attribute frame interval of calling the CADisplayLink at each time in the time interval to obtain the accumulated frame number in the time interval, and dividing the accumulated frame number by the time interval to calculate the current frame number.
Three attributes are added in the class of Objective-C: accumulating the number of frames, accumulating the time interval and the timestamp called last time;
calling a callback method bound on the CADisplayLink to calculate the current frame number comprises the following steps:
calling a callback method bound on the CADisplayLink, reading a timestamp when the CADisplayLink is called, and accumulating the attribute frame interval of the CADisplayLink to the accumulated frame number;
judging the difference value between the timestamp and the timestamp called last time, and if the difference value is smaller than a preset difference threshold value, accumulating the difference value between the current timestamp and the timestamp called last time into an accumulated time interval; if the value is larger than or equal to the preset difference threshold value, dividing the accumulated frame number by the accumulated time interval to obtain the current frame number, juxtaposing the empty accumulated frame number and the accumulated time interval, and setting the value of the timestamp called last time as the timestamp.
Wherein the preset difference threshold is 0.5 second. The attribute frame interval default value is 1. I.e. once per frame. If this refresh frequency is 60HZ for an IOS device, i.e., 60 per second, if the frame interval is set to 2, then two frame calls, i.e., 30 refreshes per second, are made.
The scheme realizes real-time frame number monitoring by defining the class of Objective-C, has small code required for developing the class of Objective-C at the IOS mobile terminal and small memory occupied during operation, and therefore, the scheme can realize effective management of the real-time frame number of the IOS application of the mobile terminal after the IOS application is released by the mobile terminal.
Example 2:
the embodiment of the invention discloses a storage medium, wherein a computer program is stored on the storage medium, and the computer program is executed by a processor to realize a real-time frame number monitoring method of IOS application.
The storage medium of the embodiment of the invention stores the real-time frame number monitoring method for realizing the IOS application, the codes required by developing Objective-C classes at the IOS mobile terminal are small, and the occupied memory during the operation is small, so the scheme can realize the effective management of the real-time frame number of the IOS application of the mobile terminal after the IOS application is released at the mobile terminal.
Example 3:
the embodiment of the invention discloses electronic equipment, which comprises a memory and a processor, wherein a computer program running on the processor is stored in the memory, and the processor realizes a real-time frame number monitoring method of IOS application when executing the computer program.
The memory of the embodiment of the invention is stored with a computer program running on the processor, and the processor realizes the real-time frame number monitoring method of the IOS application when executing the computer program. The code required for developing the Objective-C class at the IOS mobile terminal is small, and the occupied memory during the operation is small, so that the scheme can realize the effective management of the real-time frame number of the IOS application of the mobile terminal after the IOS application is released by the mobile terminal.
Example 4:
referring to fig. 2, an embodiment of the present invention discloses a real-time frame number monitoring system for IOS application, including:
the class creating module is used for defining an Objective-C class and realizing the loading of the class singleton;
the timer creating module is used for creating the CADisplayLink when the class of the Objective-C is initialized, binding a callback method of the CADisplayLink and registering the CADisplayLink in the IOS operation cycle;
the current frame number calculating module is used for calling a callback method bound on the CADisplayLink to calculate the current frame number each time the IOS operation cycle is ended; the callback method comprises the following steps:
reading an attribute frame interval from the CADisplayLink, calculating the time interval of two calls according to the time stamp of calling the CADisplayLink at present and the time stamp of calling the CADisplayLink at the last time, accumulating the attribute frame interval of calling the CADisplayLink at each time in the time interval to obtain the accumulated frame number in the time interval, and dividing the accumulated frame number by the time interval to calculate the current frame number.
The class creation module is used for adding three attributes in the class of Objective-C: accumulating the number of frames, accumulating the time interval and the timestamp called last time;
the current frame number calculating module is used for calling a callback method bound on the CADisplayLink, reading a timestamp when the CADisplayLink is called, and accumulating the attribute frame interval of the CADisplayLink to the accumulated frame number;
judging the difference value between the timestamp and the timestamp called last time, and if the difference value is smaller than a preset difference threshold value, accumulating the difference value between the current timestamp and the timestamp called last time into an accumulated time interval; if the value is larger than or equal to the preset difference threshold value, dividing the accumulated frame number by the accumulated time interval to obtain the current frame number, juxtaposing the empty accumulated frame number and the accumulated time interval, and setting the value of the timestamp called last time as the timestamp. The preset difference threshold is 0.5 seconds. The attribute frame interval default value is 1.
The IOS application real-time frame number monitoring system of the embodiment of the invention calculates the current frame number in real time through the class creation module, the timer creation module and the current frame number calculation module, the codes required for developing Objective-C classes at the IOS mobile terminal are small, and the occupied memory during operation is also small, so the scheme can realize the effective management of the IOS application real-time frame number of the mobile terminal after the IOS application is released at the mobile terminal.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.

Claims (8)

1. A real-time frame number monitoring method of IOS application is characterized in that:
defining an Objective-C class and realizing the loading of the singleton class; creating a timer CADisplayLink when the class of the Objective-C is initialized, binding a callback method of the CADisplayLink, registering the CADisplayLink in an IOS (operation operating system) running cycle, and setting interval scheduling times;
calling a callback method bound on the CADisplayLink to calculate the current frame number each time the IOS operation cycle is finished; the callback method comprises the following steps:
reading an attribute frame interval from the CADisplayLink, calculating a time interval of two times of calling according to a time stamp of calling the CADisplayLink at present and a time stamp of calling the CADisplayLink at the last time, accumulating the attribute frame interval of calling the CADisplayLink at each time in the time interval, obtaining an accumulated frame number in the time interval according to the interval scheduling times, and calculating the current frame number by dividing the accumulated frame number by the time interval;
adding three attributes in the object-C class: accumulating the number of frames, accumulating the time interval and the timestamp called last time;
calling a callback method bound on the CADisplayLink to calculate the current frame number comprises the following steps:
calling a callback method bound on the CADisplayLink, reading a timestamp when the CADisplayLink is called, and accumulating the attribute frame interval of the CADisplayLink to the accumulated frame number;
judging the difference value between the timestamp and the timestamp called last time, and if the difference value is smaller than a preset difference value threshold value, accumulating the difference value between the current timestamp and the timestamp called last time into an accumulated time interval; if the value is larger than or equal to the preset difference threshold value, dividing the accumulated frame number by the accumulated time interval to obtain the current frame number, juxtaposing the empty accumulated frame number and the accumulated time interval, and setting the value of the timestamp called last time as the timestamp.
2. The method of claim 1, wherein the IOS application comprises a real-time frame number monitoring method, comprising the following steps: the preset difference threshold is 0.5 seconds.
3. The method of claim 1, wherein the IOS application comprises a real-time frame number monitoring method, comprising the following steps: the attribute frame interval default value is 1.
4. A storage medium having a computer program stored thereon, characterized in that: the computer program, when executed by a processor, implements the method of any of claims 1 to 3.
5. An electronic device comprising a memory and a processor, the memory having stored thereon a computer program that runs on the processor, characterized in that: a processor implementing the method of any one of claims 1 to 3 when executing the computer program.
6. A real-time frame number monitoring system for IOS applications, comprising:
the class creating module is used for defining an Objective-C class and realizing the loading of the class singleton;
a timer creating module, configured to create a CADisplayLink when the object-C class is initialized, bind a callback method of the CADisplayLink, register the CADisplayLink in an IOS operation cycle, and set an interval scheduling number;
the current frame number calculating module is used for calling a callback method bound on the CADisplayLink to calculate the current frame number each time the IOS operation cycle is ended; the callback method comprises the following steps:
reading an attribute frame interval from the CADisplayLink, calculating a time interval of two times of calling according to a time stamp of calling the CADisplayLink at present and a time stamp of calling the CADisplayLink at the last time, accumulating the attribute frame interval of calling the CADisplayLink at each time in the time interval, obtaining an accumulated frame number in the time interval according to the price scheduling times, and calculating the current frame number by dividing the accumulated frame number by the time interval;
the class creating module is used for adding three attributes in the class of the Objective-C: accumulating the number of frames, accumulating the time interval and the timestamp called last time;
the current frame number calculating module is used for calling a callback method bound on the CADisplayLink, reading a timestamp when the CADisplayLink is called, and accumulating the attribute frame interval of the CADisplayLink to the accumulated frame number;
judging the difference value between the timestamp and the timestamp called last time, and if the difference value is smaller than a preset difference value threshold value, accumulating the difference value between the current timestamp and the timestamp called last time into an accumulated time interval; if the value is larger than or equal to the preset difference threshold value, dividing the accumulated frame number by the accumulated time interval to obtain the current frame number, juxtaposing the empty accumulated frame number and the accumulated time interval, and setting the value of the timestamp called last time as the timestamp.
7. The real-time frame number monitoring system of an IOS application of claim 6, wherein: the preset difference threshold is 0.5 seconds.
8. The system of claim 7, wherein the real-time frame number monitoring system for IOS applications comprises: the attribute frame interval default value is 1.
CN201810064284.9A 2018-01-23 2018-01-23 Real-time frame number monitoring method, storage medium, equipment and system for IOS application Active CN108304294B (en)

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