Adding null check and optionalBackgroundInstallControl flag check. Dependency service (Background Install Control) is disabled for wear devices as mentioned in: b/340928990

Change-Id: I9c263fd6e67bb3ad56b7099cd44b1f4408878e05
Flag: android.app.background_install_control_callback_api
Bug: 369382811
Test: atest

1 files changed, 10 insertions, 0 deletions

diff --git a/services/core/java/com/android/server/BinaryTransparencyService.java b/services/core/java/com/android/server/BinaryTransparencyService.java
index aabbd3bf49ae..0286f7b0b73d 100644
--- a/services/core/java/com/android/server/BinaryTransparencyService.java
+++ b/services/core/java/com/android/server/BinaryTransparencyService.java
@@ -1580,10 +1580,20 @@ public class BinaryTransparencyService extends SystemService {
     }
 
     private void registerBicCallback() {
+        if(!com.android.server.flags.Flags.optionalBackgroundInstallControl()) {
+            Slog.d(TAG, "BICS is disabled for this device, skipping registration.");
+            return;
+        }
         IBackgroundInstallControlService iBics =
                 IBackgroundInstallControlService.Stub.asInterface(
                         ServiceManager.getService(
                                 Context.BACKGROUND_INSTALL_CONTROL_SERVICE));
+        if(iBics == null) {
+            Slog.e(TAG, "Failed to register BackgroundInstallControl callback, either "
+                + "background install control service does not exist or disabled on this "
+                + "build.");
+            return;
+        }
         try {
             iBics.registerBackgroundInstallCallback(
                     new BicCallbackHandler(mServiceImpl));