安全问题-禁止截屏，录屏_c# 窗口 如何防止截图

Activity界面禁止截屏，录屏

getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE)；

允许截屏，录屏

getWindow().clearFlags(WindowManager.LayoutParams.FLAG_SECURE);

此设置对于Activity上弹出的Dialog无效，仍然可以录屏

按如下设置可生效

Window dialogWindow = mDialog.getWindow();

WindowManager.LayoutParams lp = dialogWindow.getAttributes();
lp.flags = lp.flags | WindowManager.LayoutParams.FLAG_SECURE;
lp.width = WindowManager.LayoutParams.MATCH_PARENT;
lp.height = WindowManager.LayoutParams.MATCH_PARENT;
dialogWindow.setAttributes(lp);