You must set it in your onCreate method of your FragmentActivity :
activity.getWindow().setFlags(LayoutParams.FLAG_SECURE, LayoutParams.FLAG_SECURE);
Frage
I have to restrict user to take screenshot. So I want to add FLAG_SECURE flag in my class which extends DialogFragment. Can anyone please tell me where and how to add that flag. Thanks in advance.
Lösung
You must set it in your onCreate method of your FragmentActivity :
activity.getWindow().setFlags(LayoutParams.FLAG_SECURE, LayoutParams.FLAG_SECURE);
Andere Tipps
I got this working by overriding onViewCreated like so in Kotlin:
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
this.dialog?.window?.setFlags(FLAG_SECURE, FLAG_SECURE)
super.onViewCreated(view, savedInstanceState)
}