commit afdfe99117dbb6481d349b79d3c55dc2f343e9d0
author Mill Chen <millchen@google.com> Wed Feb 26 18:41:56 2020 +0800
committer Anis Assi <anisassi@google.com> Thu Mar 12 13:34:30 2020 -0700
tree fb1076960820d93d832de5dcfffb8e764eb39d40
parent 373ded27296eedeee3e0d15fd24757d9b6a49e51

RESTRICT AUTOMERGE
Allow LockScreenPattern to be launched in the pinning screen

If work profile lock is enabled and work app is pinned, users will get a
black/white screen on the phone. That's because Settings is prevented
from other apps launch any pages of Settings in the pinning mode.

In order to launch some pages of Settings from other apps, we add a
condition to the preventive mechanism and allow the activity inherited
from SettingsBaseActivity to override the condition to have the activity
to be launched from other apps in the pinning mode.

Bug: 137015265
Bug: 135604684
Test: manual test
Change-Id: I8070de79a83350d1658efcb19e983669dad0e673
Merged-In: I8070de79a83350d1658efcb19e983669dad0e673
(cherry picked from commit 101c9be6c1f7f89cb1b8a788b8e6e62358684d94)

src/com/android/settings/SettingsActivity.java

diff --git a/src/com/android/settings/SettingsActivity.java b/src/com/android/settings/SettingsActivity.java
index c0ffc19..11654ae 100644
--- a/src/com/android/settings/SettingsActivity.java
+++ b/src/com/android/settings/SettingsActivity.java
@@ -255,7 +255,7 @@
     protected void onCreate(Bundle savedState) {
         super.onCreate(savedState);
 
-        if (isLockTaskModePinned() && !isSettingsRunOnTop()) {
+        if (isLockTaskModePinned() && !isSettingsRunOnTop() && !isLaunchableInTaskModePinned()) {
             Log.w(LOG_TAG, "Devices lock task mode pinned.");
             finish();
         }
@@ -964,6 +964,13 @@
         startActivity(intent);
     }
 
+    /**
+     * @return whether or not the activity can be launched from other apps in the pinning screen.
+     */
+    public boolean isLaunchableInTaskModePinned() {
+        return false;
+    }
+
     private boolean isLockTaskModePinned() {
         final ActivityManager activityManager =
             getApplicationContext().getSystemService(ActivityManager.class);

src/com/android/settings/password/ConfirmDeviceCredentialBaseActivity.java

diff --git a/src/com/android/settings/password/ConfirmDeviceCredentialBaseActivity.java b/src/com/android/settings/password/ConfirmDeviceCredentialBaseActivity.java
index d2bd934..6d48a95 100644
--- a/src/com/android/settings/password/ConfirmDeviceCredentialBaseActivity.java
+++ b/src/com/android/settings/password/ConfirmDeviceCredentialBaseActivity.java
@@ -134,6 +134,11 @@
         }
     }
 
+    @Override
+    public boolean isLaunchableInTaskModePinned() {
+        return true;
+    }
+
     public void prepareEnterAnimation() {
         getFragment().prepareEnterAnimation();
     }