So I have used following code to block to take screenshot
window.setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE)
It is work fine on physical device but Android Studio Emulator is allow to take screenshot
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Sumit Jain
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Is there a problem? – blackapps Jan 22 '20 at 09:27
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@blackapps Yes because. I want to disable to take screenshot of my app in any ways. Suppose some one install's my app on any emulator and takes screenshot then what's the meaning of writing code to block screenshot which block only physical devices – Sumit Jain Jan 22 '20 at 10:18
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Well jack already explained that you cannot prevent anything. – blackapps Jan 22 '20 at 10:21
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@blackapps So the solution is to block user to use the app on any emulator – Sumit Jain Jan 22 '20 at 10:25
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What the fuss. A user can also take a picture of your smartphone when your app is running on it. – blackapps Jan 22 '20 at 10:27
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Even if you made that particular button not work, there is no way to prevent the computer OS from taking a screenshot of an emulator it is running, but you could prevent your app from running on an emulator with high probability. See: How can I detect when an Android application is running in the emulator?
If you still want to be able to do development on an emulator you could choose to only apply the emulator check in release builds.
jack
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1That is what I would do. If you can run the app on an emulator then you can take a screenshot of it. – jack Jan 22 '20 at 10:28