Added two new flags to the Activity to turn the screen on and
show on the lock screen. These can be used instead of the Window flags
LayouParams.FLAG_TURN_SCREEN_ON and LayoutParams.FLAG_SHOW_WHEN_LOCKED
to prevent the double onStart/onResume lifecycle events.
The flags can be set as an attr for the Activity in the AndroidManifest
using android:showWhenLocked="true" and android:turnScreenOn="true".
They can also be set through methods in the Activity class using
setShowWhenLocked(true) and setTurnScreen(true).
Fixes: 36850100
Test: Created sample application, tests/ShowWhenLockedApp, that set the
flags in the manifest and code. Tested multiple scenarios to
launch the Activity with the flags set and unset.
Test: cts-tradefed run commandAndExit cts-dev --module CtsServicesHostTestCases -t android.server.cts.KeyguardTransitionTests
Test: cts-tradefed run commandAndExit cts-dev --module CtsServicesHostTestCases -t android.server.cts.ActivityManagerActivityVisibilityTests
Test: cts-tradefed run commandAndExit cts-dev --module CtsServicesHostTestCases -t android.server.cts.KeyguardTests
Change-Id: I44f0e313df4531d49c7ac56108b6bf80e41fefc1
