CN110795699B - Screen recording prevention method below iOS11 based on iPhone system status bar - Google Patents
Screen recording prevention method below iOS11 based on iPhone system status bar Download PDFInfo
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- CN110795699B CN110795699B CN201910946276.1A CN201910946276A CN110795699B CN 110795699 B CN110795699 B CN 110795699B CN 201910946276 A CN201910946276 A CN 201910946276A CN 110795699 B CN110795699 B CN 110795699B
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- 238000000034 method Methods 0.000 title claims abstract description 6
- 230000002265 prevention Effects 0.000 title claims abstract description 6
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 abstract description 3
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
Abstract
The iOS 11-based screen recording prevention method based on the iPhone system status bar is characterized by comprising the following steps: when Mac comes with software QuickTime or other third party Mac App: if the mobile phone is recorded with a screen, when a video starts to play, the judgment is triggered at intervals, the time displayed by the status bar is obtained through the attribute 'timeTring' of the class named 'UIStatusBarTimeItemView' in the sub-control, the real time of the system is read at the same time, if the real time at the moment does not accord with the time of the status bar, the screen recording operation is proved to exist, the screen recording operation is reported to a video provider, and the video provider performs further processing. Compared with the prior art, the invention has the advantage of preventing screen recording.
Description
The technical field is as follows:
the invention relates to the field of computers, in particular to a screen recording prevention technology.
Background
When the video is played in an iPhone, the picture and sound are very easy to be completely recorded, and the modes such as a system with a recording screen above an iOS11, a third party recording screen App, a Mac computer with a QuickTime software recording screen, an AirPlay screen, and the like have great influence on the copyright video. Above the iOS11, a recording screen monitoring notification UIScreen captureddidchangednotify and an isCaptured attribute of the UIScreen are provided, and a developer can judge whether the user is recording the content of the mobile phone screen through the notification and the attribute. However, below iOS11, the framework does not provide attributes, methods, and snoops for screen recording to obtain the screen recording status. All attributes of UIScreen are the same and have no difference in a non-screen recording state and a screen recording state, and judgment cannot be carried out. The screen recording channel is still available and convenient, so that the problem that the copyright video of an iPhone mobile phone below the iOS11 is not protected exists.
Disclosure of Invention
The invention aims to provide a screen recording prevention method below iOS11 based on an iPhone system status bar, which can prevent screen recording.
The invention is realized by the following steps:
when recording through Mac self-contained software QuickTime or other third party Mac App: if the mobile phone is recorded, the time in the status bar at the top of the mobile phone becomes constant to be 9: 41 minutes (if the mobile phone is set to display a 12-hour system, the time is displayed to be 9: 41 minutes in the morning, the time is the time when the first generation of iPhone is released, and the time is constant as long as the iPhone is recorded on the screen), when the video starts to play, the judgment is triggered once at intervals, the time displayed by the status bar is obtained through the attribute 'timesTring' of the class named 'UIStatus BarTimeItemView' in the sub-control, and the real time of the system is read at the same time, if the real time at the moment is not consistent with the time of the status bar, the screen recording operation is proved to exist, the screen recording operation is reported to a video provider, and the video provider performs further processing (including stopping providing the video);
when the mobile phone is used for projecting screens through the AirPlay (for example, after the mobile phone is projected to other equipment, namely a smart television and a computer), the mobile phone App enables a notification center NSNotification center of the apple iOS system in advance, monitors UIScreen DidConnectNotification events, and receives event notifications of UIScreen DidConnectNotification sent by the notification center NSNotification center when the AirPlay screen projecting events occur. At this point it can be known that the screen has been dropped to another device, with a high risk of screen recording, and further processing (including stopping the video feed) is done by the video provider.
Compared with the prior art, the invention has the advantage of preventing screen recording.
Detailed Description
When the Mac self-contained software QuickTime or other third-party Mac App records: if the mobile phone is recorded, the time in the status bar at the top of the mobile phone becomes constant to be 9: 41 minutes (if the mobile phone setting display is a 12-hour system, the time is displayed to be 9: 41 minutes in the morning, the 9: 41 minutes is the time when the first generation of iPhone is released, and the time is constant to be the time as long as the iPhone is recorded on the screen), when the video starts to play, the judgment is triggered once at intervals (for example: one minute), the time displayed by the status bar (namely, the 9: 41 minutes or the 9: 41 minutes in the morning) is obtained through the attribute 'eStatmtring' of the class named 'UIStatusBarTimeItemView' in the sub-control, the real time of the system is read at the same time, if the real time at the moment does not accord with the time of the status bar, the screen recording operation is proved to exist, the screen recording operation is reported to the video provider, and the further processing is carried out by the video provider (including stopping providing the video);
when the mobile phone is used for projecting screens through the AirPlay (for example, after the mobile phone is projected to other equipment, namely a smart television and a computer), the mobile phone App enables a notification center NSNotification center of the apple iOS system in advance, monitors UIScreen DidConnectNotification events, and receives event notifications of UIScreen DidConnectNotification sent by the notification center NSNotification center when the AirPlay screen projecting events occur. It can now be known that the screen has been dropped to another device with a high risk of screen recording, at which point further processing (including stopping the video from being provided) is done by the video provider.
Claims (1)
1. The iOS 11-based screen recording prevention method based on the iPhone system status bar is characterized by comprising the following steps:
when Mac comes with software QuickTime or other third party Mac App: if the mobile phone is recorded with a screen, when a video starts to play, triggering judgment at intervals, obtaining the time displayed by the status bar through the attribute 'timeTring' of the class named 'UIStatusBarTimeItemView' in the sub-control, simultaneously reading the real time of the system, if the real time at the moment does not accord with the time of the status bar, proving that screen recording operation exists, reporting the real time to a video provider, and performing further processing by the video provider;
if AirPlay casts the screen, the monitoring system sends a notice of UIScreen digital connectivity notification, and when AirPlay is recorded, the notice can be received, and the video provider performs further processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910946276.1A CN110795699B (en) | 2019-10-04 | 2019-10-04 | Screen recording prevention method below iOS11 based on iPhone system status bar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910946276.1A CN110795699B (en) | 2019-10-04 | 2019-10-04 | Screen recording prevention method below iOS11 based on iPhone system status bar |
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| Publication Number | Publication Date |
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| CN110795699A CN110795699A (en) | 2020-02-14 |
| CN110795699B true CN110795699B (en) | 2022-12-02 |
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| CN201910946276.1A Active CN110795699B (en) | 2019-10-04 | 2019-10-04 | Screen recording prevention method below iOS11 based on iPhone system status bar |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111783041A (en) * | 2020-07-06 | 2020-10-16 | 北京百家视联科技有限公司 | Multimedia information playing method and device, electronic equipment and storage medium |
| CN113747244B (en) * | 2021-07-28 | 2024-03-22 | 深圳市华曦达科技股份有限公司 | Multimedia data protection method, terminal equipment and server |
| CN114612272B (en) * | 2022-03-14 | 2022-10-14 | 黑龙江省格趣科技有限公司 | Safety protection system and method based on big information safety data |
| CN116540984B (en) * | 2023-07-06 | 2023-09-29 | 易方信息科技股份有限公司 | IOS (input/output) system-based screen recording prevention method and device |
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