截屏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?

我看到过一些关于想要禁用截屏功能的帖子，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截屏复制，我想如果有机会在截屏之前在图像上加水印，就可以减轻他的恐惧.

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

这里有一种可能有效的方法，尽管我确信它会完全违反用户界面指南.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.因为一旦您按下 home+lock 键实际截取屏幕截图，屏幕就会表现得好像没有手指触摸它一样.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，但如果您真的很聪明，那么您可以将其应用到您的应用程序设计中，而不会过多地降低用户体验(尽管这是一个艰巨的挑战！).尽管如此，我相信这可以让您在不让用户截取屏幕截图的情况下展示艺术品/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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