Command: android ui FLAG_SECURE

Usage: android ui FLAG_SECURE <true/false>

Control the value of FLAG_SECURE for the current Activity. Setting the value
to false in activities where it is true by default may enable you to take
screenshots using the hardware keys.

NOTE: This command currently crashes the target application on 32bit devices due to
an SELinux DENY. For more information see this PR:
    https://github.com/sensepost/objection/pull/24

Examples:
    android ui FLAG_SECURE false
