Avoid crashing on startup when policy forbids lockscreen camera.

Bug: 19554426
Change-Id: I5b2898d7d114de87d925b5eccc8e4b189e4713de

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
index 3392d8e..8a03a2b 100644 (file)
--- a/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
@@ -59,6 +59,7 @@ import android.service.notification.NotificationListenerService.RankingMap;
 import android.service.notification.StatusBarNotification;
 import android.text.TextUtils;
 import android.util.Log;
+import android.util.Slog;
 import android.util.SparseArray;
 import android.util.SparseBooleanArray;
 import android.view.Display;
@@ -2175,6 +2176,14 @@ public abstract class BaseStatusBar extends SystemUI implements
     }
 
     public boolean isKeyguardSecure() {
+        if (mStatusBarKeyguardViewManager == null) {
+            // startKeyguard() hasn't been called yet, so we don't know.
+            // Make sure anything that needs to know isKeyguardSecure() checks and re-checks this
+            // value onVisibilityChanged().
+            Slog.w(TAG, "isKeyguardSecure() called before startKeyguard(), returning false",
+                    new Throwable());
+            return false;
+        }
         return mStatusBarKeyguardViewManager.isSecure();
     }
 }

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardBottomAreaView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardBottomAreaView.java
index acf7af9..0c21b20 100644 (file)
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardBottomAreaView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardBottomAreaView.java
@@ -220,6 +220,7 @@ public class KeyguardBottomAreaView extends FrameLayout implements View.OnClickL
 
     public void setPhoneStatusBar(PhoneStatusBar phoneStatusBar) {
         mPhoneStatusBar = phoneStatusBar;
+        updateCameraVisibility(); // in case onFinishInflate() was called too early
     }
 
     private Intent getCameraIntent() {
@@ -231,6 +232,10 @@ public class KeyguardBottomAreaView extends FrameLayout implements View.OnClickL
     }
 
     private void updateCameraVisibility() {
+        if (mCameraImageView == null) {
+            // Things are not set up yet; reply hazy, ask again later
+            return;
+        }
         ResolveInfo resolved = mContext.getPackageManager().resolveActivityAsUser(getCameraIntent(),
                 PackageManager.MATCH_DEFAULT_ONLY,
                 mLockPatternUtils.getCurrentUser());
@@ -253,7 +258,7 @@ public class KeyguardBottomAreaView extends FrameLayout implements View.OnClickL
     private boolean isCameraDisabledByDpm() {
         final DevicePolicyManager dpm =
                 (DevicePolicyManager) getContext().getSystemService(Context.DEVICE_POLICY_SERVICE);
-        if (dpm != null) {
+        if (dpm != null && mPhoneStatusBar != null) {
             try {
                 final int userId = ActivityManagerNative.getDefault().getCurrentUser().id;
                 final int disabledFlags = dpm.getKeyguardDisabledFeatures(null, userId);