在拍摄之前通知或检测屏幕截图？ [英] Notification of or detecting screenshot before being taken?

问题描述

是否有通知或其他机制通知用户正在使用主页/电源按钮进行屏幕截图？

Is there a notification or other mechanism of being informed that the user is taking a screenshot with the home/power buttons?

我见过有关想要禁用截屏功能，但这不是我想要做的。

I've seen threads about wanting to disable the taking of screenshots, but that's not what I'm looking to do.

我有一个摄影师客户，他担心他的作品会被用户拍摄的方式复制屏幕快照，我认为，如果在拍摄屏幕快照之前有机会在图像上加水印，那将减轻他的担心。

I have a photographer client who's concerned that his works will be copied by means of users taking screenshots and I thought that if there was an opportunity to put a watermark across the image before the screenshot was taken, that would allay his fears.

推荐答案

这是一种可行的方法，尽管它完全违反了用户界面准则。如果您强迫用户将手指放在屏幕上以显示图像，那么我认为他们无法创建屏幕截图。因为只要按一下Home + Lock键即可实际截取屏幕截图，那么屏幕似乎就像没有手指在触摸屏幕一样。尝试在主屏幕之间移动时截取屏幕截图，以了解我的意思。

Here's a way which might work, although it will totally go against user interface guidelines I'm sure. If you force the user to have their finger on the screen for the image to show then I don't think they can create screenshots. Because as soon as you press the home+lock keys to actually take the screenshot, the screen seems to behave as if there are no fingers touching it. Try taking a screenshot while moving between home screens to see what I mean.

无论如何都不是一个完美的解决方案，但是如果您真的很聪明，但又不影响用户体验的话，您也许可以将其应用于应用程序设计中（不过，这是一个艰巨的挑战！）。不过，我相信这可以让您在不允许用户截屏的情况下显示艺术品/照片。

Not a perfect solution by any means but you may be able to work it into your app design if you're really clever without it detracting too much from the user experience (a tough challenge though!). Nevertheless, I believe this may allow you to display artwork/photos without allowing users to take screenshots.

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