Add API to get hibernating packages

Add API to AppHibernationService to get hibernating packages so
Settings can access this information.

Bug: 175829330
Test: atest AppHibernationServiceTest
Change-Id: Icd186807c19ece55a21fc4d240d2f0132951af82

3 files changed, 20 insertions, 0 deletions

diff --git a/core/api/system-current.txt b/core/api/system-current.txt
index f9ff3f21b6b0..5ce5075ac54b 100644
--- a/core/api/system-current.txt
+++ b/core/api/system-current.txt
@@ -1422,6 +1422,7 @@ package android.app.usage {
 package android.apphibernation {
 
   public final class AppHibernationManager {
+    method @NonNull @RequiresPermission(android.Manifest.permission.MANAGE_APP_HIBERNATION) public java.util.List<java.lang.String> getHibernatingPackagesForUser();
     method @RequiresPermission(android.Manifest.permission.MANAGE_APP_HIBERNATION) public boolean isHibernatingForUser(@NonNull String);
     method @RequiresPermission(android.Manifest.permission.MANAGE_APP_HIBERNATION) public boolean isHibernatingGlobally(@NonNull String);
     method @RequiresPermission(android.Manifest.permission.MANAGE_APP_HIBERNATION) public void setHibernatingForUser(@NonNull String, boolean);
diff --git a/core/java/android/apphibernation/AppHibernationManager.java b/core/java/android/apphibernation/AppHibernationManager.java
index 132cc40f3948..de778488df03 100644
--- a/core/java/android/apphibernation/AppHibernationManager.java
+++ b/core/java/android/apphibernation/AppHibernationManager.java
@@ -24,6 +24,8 @@ import android.content.Context;
 import android.os.RemoteException;
 import android.os.ServiceManager;
 
+import java.util.List;
+
 /**
  * This class provides an API surface for system apps to manipulate the app hibernation
  * state of a package for the user provided in the context.
@@ -111,4 +113,20 @@ public final class AppHibernationManager {
             throw e.rethrowFromSystemServer();
         }
     }
+
+    /**
+     * Get the hibernating packages for the user. This is equivalent to the list of packages for
+     * the user that return true for {@link #isHibernatingForUser}.
+     *
+     * @hide
+     */
+    @SystemApi
+    @RequiresPermission(value = android.Manifest.permission.MANAGE_APP_HIBERNATION)
+    public @NonNull List<String> getHibernatingPackagesForUser() {
+        try {
+            return mIAppHibernationService.getHibernatingPackagesForUser(mContext.getUserId());
+        } catch (RemoteException e) {
+            throw e.rethrowFromSystemServer();
+        }
+    }
 }
diff --git a/core/java/android/apphibernation/IAppHibernationService.aidl b/core/java/android/apphibernation/IAppHibernationService.aidl
index 6a068ee2b147..afdb3fe03dad 100644
--- a/core/java/android/apphibernation/IAppHibernationService.aidl
+++ b/core/java/android/apphibernation/IAppHibernationService.aidl
@@ -25,4 +25,5 @@ interface IAppHibernationService {
     void setHibernatingForUser(String packageName, int userId, boolean isHibernating);
     boolean isHibernatingGlobally(String packageName);
     void setHibernatingGlobally(String packageName, boolean isHibernating);
+    List<String> getHibernatingPackagesForUser(int userId);
 }
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