tree ff00e7c8a81b8bfe3d1a97f15d8e6cefa932c5ee
parent abb41637225c95d5530bff275531a446be66a18c
author Jeff Chang <chengjeff@google.com> 1643078249 +0800
committer Android Build Coastguard Worker <android-build-coastguard-worker@google.com> 1647368173 +0000

[RESTRICT AUTOMERGE] Do not resume activity if behind a translucent task

The top-focusable activity resides in the RESUMED state while the app
process is newly created and attached. The behavior may enable UI
hijacking attacks against apps implementing authentication.

This CL disallows the system to resume the activity for the case if it
is not visible or is occluded by other translucent tasks.

Bug: 211481342
Test: atest CtsWindowManagerDeviceTestCases:ActivityLifecycleTests
Change-Id: I7903494cf928b5b5613700262b7c5fff10f3c5a0
(cherry picked from commit 0a4f661ec6a18a0ddc47b6d9280a10b8d16c9457)
Merged-In: I7903494cf928b5b5613700262b7c5fff10f3c5a0