Add log to capture the hardware status.

Sometimes Settings Search show the items that are not supported by
the hardware. e.g. FaceLock.
Add log to check the HW status when the problem occurred.

Bug: 156667203
Test: watch the log output.
Change-Id: Ie6a89f338aac6f7bdefc69fc84cfa5bf848ed015

src/com/android/settings/biometrics/face/FaceSettings.java

@@ -95,9 +95,20 @@ public class FaceSettings extends DashboardFragment {
     private final FaceSettingsEnrollButtonPreferenceController.Listener mEnrollListener = intent ->
             startActivityForResult(intent, ENROLL_REQUEST);
 
-    public static boolean isAvailable(Context context) {
+    /**
+     * @param context
+     * @return true if the Face hardware is detected.
+     */
+    public static boolean isFaceHardwareDetected(Context context) {
         FaceManager manager = Utils.getFaceManagerOrNull(context);
-        return manager != null && manager.isHardwareDetected();
+        boolean isHardwareDetected = false;
+        if (manager == null) {
+            Log.d(TAG, "FaceManager is null");
+        } else {
+            isHardwareDetected = manager.isHardwareDetected();
+            Log.d(TAG, "FaceManager is not null. Hardware detected: " + isHardwareDetected);
+        }
+        return manager != null && isHardwareDetected;
     }
 
     @Override
@@ -126,7 +137,7 @@ public class FaceSettings extends DashboardFragment {
         super.onCreate(savedInstanceState);
 
         final Context context = getPrefContext();
-        if (!isAvailable(context)) {
+        if (!isFaceHardwareDetected(context)) {
             Log.w(TAG, "no faceManager, finish this");
             finish();
             return;
@@ -273,7 +284,7 @@ public class FaceSettings extends DashboardFragment {
 
     @Override
     protected List<AbstractPreferenceController> createPreferenceControllers(Context context) {
-        if (!isAvailable(context)) {
+        if (!isFaceHardwareDetected(context)) {
             return null;
         }
         mControllers = buildPreferenceControllers(context, getSettingsLifecycle());
@@ -314,7 +325,7 @@ public class FaceSettings extends DashboardFragment {
                 @Override
                 public List<AbstractPreferenceController> createPreferenceControllers(
                         Context context) {
-                    if (isAvailable(context)) {
+                    if (isFaceHardwareDetected(context)) {
                         return buildPreferenceControllers(context, null /* lifecycle */);
                     } else {
                         return null;
@@ -323,7 +334,7 @@ public class FaceSettings extends DashboardFragment {
 
                 @Override
                 protected boolean isPageSearchEnabled(Context context) {
-                    if (isAvailable(context)) {
+                    if (isFaceHardwareDetected(context)) {
                         return hasEnrolledBiometrics(context);
                     }
 
@@ -333,7 +344,10 @@ public class FaceSettings extends DashboardFragment {
                 @Override
                 public List<String> getNonIndexableKeys(Context context) {
                     final List<String> keys = super.getNonIndexableKeys(context);
-                    if (isAvailable(context)) {
+                    final boolean isFaceHardwareDetected = isFaceHardwareDetected(context);
+                    Log.d(TAG, "Get non indexable keys. isFaceHardwareDetected: "
+                            + isFaceHardwareDetected + ", size:" + keys.size());
+                    if (isFaceHardwareDetected) {
                         final boolean hasEnrolled = hasEnrolledBiometrics(context);
                         keys.add(hasEnrolled ? PREF_KEY_ENROLL_FACE_UNLOCK
                                 : PREF_KEY_DELETE_FACE_DATA);

src/com/android/settings/biometrics/face/FaceSettingsAppPreferenceController.java

@@ -22,10 +22,10 @@ import android.content.Context;
 import android.hardware.face.FaceManager;
 import android.provider.Settings;
 
-import com.android.settings.Utils;
-
 import androidx.preference.Preference;
 
+import com.android.settings.Utils;
+
 /**
  * Preference controller for Face settings page controlling the ability to use
  * Face authentication in apps (through BiometricPrompt).
@@ -51,7 +51,7 @@ public class FaceSettingsAppPreferenceController extends FaceSettingsPreferenceC
 
     @Override
     public boolean isChecked() {
-        if (!FaceSettings.isAvailable(mContext)) {
+        if (!FaceSettings.isFaceHardwareDetected(mContext)) {
             return false;
         }
         return Settings.Secure.getIntForUser(
@@ -67,7 +67,7 @@ public class FaceSettingsAppPreferenceController extends FaceSettingsPreferenceC
     @Override
     public void updateState(Preference preference) {
         super.updateState(preference);
-        if (!FaceSettings.isAvailable(mContext)) {
+        if (!FaceSettings.isFaceHardwareDetected(mContext)) {
             preference.setEnabled(false);
         } else if (!mFaceManager.hasEnrolledTemplates(getUserId())) {
             preference.setEnabled(false);

src/com/android/settings/biometrics/face/FaceSettingsAttentionPreferenceController.java

@@ -93,7 +93,7 @@ public class FaceSettingsAttentionPreferenceController extends FaceSettingsPrefe
 
     @Override
     public boolean isChecked() {
-        if (!FaceSettings.isAvailable(mContext)) {
+        if (!FaceSettings.isFaceHardwareDetected(mContext)) {
             return true;
         }
         // Set to disabled until we know the true value.

src/com/android/settings/biometrics/face/FaceSettingsConfirmPreferenceController.java

@@ -25,7 +25,6 @@ import android.provider.Settings;
 import androidx.preference.Preference;
 
 import com.android.settings.Utils;
-import com.android.settings.core.TogglePreferenceController;
 
 /**
  * Preference controller giving the user an option to always require confirmation.
@@ -65,7 +64,7 @@ public class FaceSettingsConfirmPreferenceController extends FaceSettingsPrefere
     @Override
     public void updateState(Preference preference) {
         super.updateState(preference);
-        if (!FaceSettings.isAvailable(mContext)) {
+        if (!FaceSettings.isFaceHardwareDetected(mContext)) {
             preference.setEnabled(false);
         } else if (!mFaceManager.hasEnrolledTemplates(getUserId())) {
             preference.setEnabled(false);

src/com/android/settings/biometrics/face/FaceSettingsKeyguardPreferenceController.java

@@ -53,7 +53,7 @@ public class FaceSettingsKeyguardPreferenceController extends FaceSettingsPrefer
 
     @Override
     public boolean isChecked() {
-        if (!FaceSettings.isAvailable(mContext)) {
+        if (!FaceSettings.isFaceHardwareDetected(mContext)) {
             return false;
         } else if (getRestrictingAdmin() != null) {
             return false;
@@ -77,7 +77,7 @@ public class FaceSettingsKeyguardPreferenceController extends FaceSettingsPrefer
     public void updateState(Preference preference) {
         EnforcedAdmin admin;
         super.updateState(preference);
-        if (!FaceSettings.isAvailable(mContext)) {
+        if (!FaceSettings.isFaceHardwareDetected(mContext)) {
             preference.setEnabled(false);
         } else if ((admin = getRestrictingAdmin()) != null) {
             ((RestrictedSwitchPreference) preference).setDisabledByAdmin(admin);

src/com/android/settings/biometrics/face/FaceSettingsLockscreenBypassPreferenceController.java

@@ -47,7 +47,7 @@ public class FaceSettingsLockscreenBypassPreferenceController
 
     @Override
     public boolean isChecked() {
-        if (!FaceSettings.isAvailable(mContext)) {
+        if (!FaceSettings.isFaceHardwareDetected(mContext)) {
             return false;
         } else if (getRestrictingAdmin() != null) {
             return false;
@@ -69,7 +69,7 @@ public class FaceSettingsLockscreenBypassPreferenceController
     public void updateState(Preference preference) {
         EnforcedAdmin admin;
         super.updateState(preference);
-        if (!FaceSettings.isAvailable(mContext)) {
+        if (!FaceSettings.isFaceHardwareDetected(mContext)) {
             preference.setEnabled(false);
         } else if ((admin = getRestrictingAdmin()) != null) {
             ((RestrictedSwitchPreference) preference).setDisabledByAdmin(admin);

src/com/android/settings/biometrics/face/FaceSettingsRemoveButtonPreferenceController.java

@@ -165,7 +165,7 @@ public class FaceSettingsRemoveButtonPreferenceController extends BasePreference
                 .findViewById(R.id.security_settings_face_settings_remove_button);
         mButton.setOnClickListener(this);
 
-        if (!FaceSettings.isAvailable(mContext)) {
+        if (!FaceSettings.isFaceHardwareDetected(mContext)) {
             mButton.setEnabled(false);
         } else {
             mButton.setEnabled(!mRemoving);

src/com/android/settings/biometrics/face/FaceStatusPreferenceController.java

@@ -41,7 +41,7 @@ public class FaceStatusPreferenceController extends BiometricStatusPreferenceCon
 
     @Override
     protected boolean isDeviceSupported() {
-        return mFaceManager != null && mFaceManager.isHardwareDetected();
+        return FaceSettings.isFaceHardwareDetected(mContext);
     }
 
     @Override

src/com/android/settings/gestures/AssistGestureSettingsPreferenceController.java

@@ -21,6 +21,7 @@ import static android.provider.Settings.Secure.ASSIST_GESTURE_SILENCE_ALERTS_ENA
 
 import android.content.Context;
 import android.provider.Settings;
+import android.util.Log;
 
 import androidx.annotation.VisibleForTesting;
 import androidx.preference.Preference;
@@ -31,6 +32,7 @@ import com.android.settings.overlay.FeatureFactory;
 
 public class AssistGestureSettingsPreferenceController extends GesturePreferenceController {
 
+    private static final String TAG = "AssistGesture";
     private static final String PREF_KEY_VIDEO = "gesture_assist_video";
 
     private static final String SECURE_KEY_ASSIST = ASSIST_GESTURE_ENABLED;
@@ -55,8 +57,11 @@ public class AssistGestureSettingsPreferenceController extends GesturePreference
 
     @Override
     public int getAvailabilityStatus() {
-        final boolean isAvailable = mAssistOnly ? mFeatureProvider.isSupported(mContext)
+        final boolean isSupported = mFeatureProvider.isSupported(mContext);
-                : mFeatureProvider.isSensorAvailable(mContext);
+        final boolean isSensorAvailable = mFeatureProvider.isSensorAvailable(mContext);
+        final boolean isAvailable = mAssistOnly ? isSupported : isSensorAvailable;
+        Log.d(TAG, "mAssistOnly:" + mAssistOnly + ", isSupported:" + isSupported
+                + ", isSensorAvailable:" + isSensorAvailable);
         return isAvailable ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
     }