diff --git a/src/com/android/settings/privacy/PermissionBarChartPreferenceController.java b/src/com/android/settings/privacy/PermissionBarChartPreferenceController.java
index 82464c9..2c6368e 100644
--- a/src/com/android/settings/privacy/PermissionBarChartPreferenceController.java
+++ b/src/com/android/settings/privacy/PermissionBarChartPreferenceController.java
@@ -31,28 +31,29 @@
 import android.view.View;
 
 import androidx.annotation.NonNull;
-import androidx.preference.Preference;
 import androidx.preference.PreferenceScreen;
 
 import com.android.settings.R;
 import com.android.settings.core.BasePreferenceController;
+import com.android.settingslib.Utils;
+import com.android.settingslib.core.lifecycle.LifecycleObserver;
+import com.android.settingslib.core.lifecycle.events.OnStart;
 import com.android.settingslib.widget.BarChartInfo;
 import com.android.settingslib.widget.BarChartPreference;
 import com.android.settingslib.widget.BarViewInfo;
-import com.android.settingslib.Utils;
 
 import java.util.ArrayList;
 import java.util.Comparator;
 import java.util.List;
-import java.util.concurrent.Executors;
 
 
 public class PermissionBarChartPreferenceController extends BasePreferenceController implements
-        PermissionControllerManager.OnPermissionUsageResultCallback {
+        PermissionControllerManager.OnPermissionUsageResultCallback, LifecycleObserver, OnStart {
 
     private static final String TAG = "BarChartPreferenceCtl";
 
     private PackageManager mPackageManager;
+    private PrivacyDashboardFragment mParent;
     private BarChartPreference mBarChartPreference;
     private List<RuntimePermissionUsageInfo> mOldUsageInfos;
 
@@ -62,6 +63,10 @@
         mPackageManager = context.getPackageManager();
     }
 
+    public void setFragment(PrivacyDashboardFragment fragment) {
+        mParent = fragment;
+    }
+
     @Override
     public int getAvailabilityStatus() {
         return Boolean.parseBoolean(
@@ -90,7 +95,13 @@
     }
 
     @Override
-    public void updateState(Preference preference) {
+    public void onStart() {
+        if (!isAvailable()) {
+            return;
+        }
+
+        mBarChartPreference.updateLoadingState(true /* isLoading */);
+        mParent.setLoadingEnabled(true /* enabled */);
         retrievePermissionUsageData();
     }
 
@@ -104,6 +115,9 @@
             mBarChartPreference.setBarViewInfos(createBarViews(usageInfos));
             mOldUsageInfos = usageInfos;
         }
+
+        mBarChartPreference.updateLoadingState(false /* isLoading */);
+        mParent.setLoadingEnabled(false /* enabled */);
     }
 
     private void retrievePermissionUsageData() {
diff --git a/src/com/android/settings/privacy/PrivacyDashboardFragment.java b/src/com/android/settings/privacy/PrivacyDashboardFragment.java
index 5823407..be6701e 100644
--- a/src/com/android/settings/privacy/PrivacyDashboardFragment.java
+++ b/src/com/android/settings/privacy/PrivacyDashboardFragment.java
@@ -48,6 +48,11 @@
     private static final String KEY_NOTIFICATION_WORK_PROFILE_NOTIFICATIONS =
             "privacy_lock_screen_work_profile_notifications";
 
+    @VisibleForTesting
+    View mProgressHeader;
+    @VisibleForTesting
+    View mProgressAnimation;
+
     @Override
     public int getMetricsCategory() {
         return SettingsEnums.TOP_LEVEL_PRIVACY;
@@ -74,9 +79,16 @@
     }
 
     @Override
+    public void onAttach(Context context) {
+        super.onAttach(context);
+        use(PermissionBarChartPreferenceController.class).setFragment(this /* fragment */);
+    }
+
+    @Override
     public void onViewCreated(View view, Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
         styleActionBar();
+        initLoadingBar();
     }
 
     @VisibleForTesting
@@ -97,6 +109,21 @@
         }
     }
 
+    @VisibleForTesting
+    void initLoadingBar() {
+        mProgressHeader = setPinnedHeaderView(R.layout.progress_header);
+        mProgressAnimation = mProgressHeader.findViewById(R.id.progress_bar_animation);
+        setLoadingEnabled(false);
+    }
+
+    @VisibleForTesting
+    void setLoadingEnabled(boolean enabled) {
+        if (mProgressHeader != null && mProgressAnimation != null) {
+            mProgressHeader.setVisibility(enabled ? View.VISIBLE : View.INVISIBLE);
+            mProgressAnimation.setVisibility(enabled ? View.VISIBLE : View.INVISIBLE);
+        }
+    }
+
     private static List<AbstractPreferenceController> buildPreferenceControllers(
             Context context, Lifecycle lifecycle) {
         final List<AbstractPreferenceController> controllers = new ArrayList<>();
diff --git a/tests/robotests/src/com/android/settings/privacy/PermissionBarChartPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/privacy/PermissionBarChartPreferenceControllerTest.java
index b947630..f9913f6 100644
--- a/tests/robotests/src/com/android/settings/privacy/PermissionBarChartPreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/privacy/PermissionBarChartPreferenceControllerTest.java
@@ -22,18 +22,25 @@
 import static com.google.common.truth.Truth.assertThat;
 
 import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
 import android.content.Context;
+import android.content.pm.UserInfo;
+import android.os.UserManager;
 import android.permission.RuntimePermissionUsageInfo;
 import android.provider.DeviceConfig;
 
 import androidx.preference.PreferenceScreen;
 
+import com.android.internal.widget.LockPatternUtils;
+import com.android.settings.testutils.FakeFeatureFactory;
 import com.android.settings.testutils.shadow.ShadowDeviceConfig;
+import com.android.settings.testutils.shadow.ShadowPermissionControllerManager;
+import com.android.settings.testutils.shadow.ShadowUserManager;
 import com.android.settingslib.widget.BarChartInfo;
 import com.android.settingslib.widget.BarChartPreference;
 import com.android.settingslib.widget.BarViewInfo;
@@ -47,26 +54,41 @@
 import org.robolectric.RobolectricTestRunner;
 import org.robolectric.RuntimeEnvironment;
 import org.robolectric.annotation.Config;
+import org.robolectric.shadow.api.Shadow;
+import org.robolectric.shadows.androidx.fragment.FragmentController;
 
 import java.util.ArrayList;
 import java.util.List;
 
 @RunWith(RobolectricTestRunner.class)
-@Config(shadows = {ShadowDeviceConfig.class})
+@Config(shadows = {ShadowDeviceConfig.class, ShadowUserManager.class,
+        ShadowPermissionControllerManager.class})
 public class PermissionBarChartPreferenceControllerTest {
 
     @Mock
     private PreferenceScreen mScreen;
+    @Mock
+    private LockPatternUtils mLockPatternUtils;
 
     private PermissionBarChartPreferenceController mController;
     private BarChartPreference mPreference;
+    private PrivacyDashboardFragment mFragment;
 
     @Before
     public void setUp() {
         MockitoAnnotations.initMocks(this);
-        Context Context = RuntimeEnvironment.application;
-        mController = new PermissionBarChartPreferenceController(Context, "test_key");
-        mPreference = spy(new BarChartPreference(Context));
+        final Context context = RuntimeEnvironment.application;
+        final UserManager userManager = context.getSystemService(UserManager.class);
+        final ShadowUserManager shadowUserManager = Shadow.extract(userManager);
+        shadowUserManager.addProfile(new UserInfo(123, null, 0));
+        when(FakeFeatureFactory.setupForTest().securityFeatureProvider.getLockPatternUtils(
+                any(Context.class))).thenReturn(mLockPatternUtils);
+
+        mController = spy(new PermissionBarChartPreferenceController(context, "test_key"));
+        mFragment = spy(FragmentController.of(new PrivacyDashboardFragment())
+                .create().start().get());
+        mController.setFragment(mFragment);
+        mPreference = spy(new BarChartPreference(context));
         when(mScreen.findPreference(mController.getPreferenceKey()))
                 .thenReturn((BarChartPreference) mPreference);
     }
@@ -130,4 +152,41 @@
 
         verify(mPreference, times(1)).setBarViewInfos(any(BarViewInfo[].class));
     }
+
+    @Test
+    public void onStart_permissionHubEnabled_shouldShowProgressBar() {
+        DeviceConfig.setProperty(DeviceConfig.Privacy.NAMESPACE,
+                DeviceConfig.Privacy.PROPERTY_PERMISSIONS_HUB_ENABLED, "true", true);
+        mController.displayPreference(mScreen);
+
+        mController.onStart();
+
+        verify(mFragment).setLoadingEnabled(true /* enabled */);
+        verify(mPreference).updateLoadingState(true /* isLoading */);
+    }
+
+    @Test
+    public void onStart_permissionHubDisabled_shouldNotShowProgressBar() {
+        DeviceConfig.setProperty(DeviceConfig.Privacy.NAMESPACE,
+                DeviceConfig.Privacy.PROPERTY_PERMISSIONS_HUB_ENABLED, "false", false);
+
+        mController.onStart();
+
+        verify(mFragment, never()).setLoadingEnabled(true /* enabled */);
+        verify(mPreference, never()).updateLoadingState(true /* isLoading */);
+    }
+
+    @Test
+    public void onPermissionUsageResult_shouldHideProgressBar() {
+        final List<RuntimePermissionUsageInfo> infos1 = new ArrayList<>();
+        final RuntimePermissionUsageInfo info1 =
+                new RuntimePermissionUsageInfo("permission 1", 10);
+        infos1.add(info1);
+        mController.displayPreference(mScreen);
+
+        mController.onPermissionUsageResult(infos1);
+
+        verify(mFragment).setLoadingEnabled(false /* enabled */);
+        verify(mPreference).updateLoadingState(false /* isLoading */);
+    }
 }
diff --git a/tests/robotests/src/com/android/settings/privacy/PrivacyDashboardFragmentTest.java b/tests/robotests/src/com/android/settings/privacy/PrivacyDashboardFragmentTest.java
index d073e9b..161c39a 100644
--- a/tests/robotests/src/com/android/settings/privacy/PrivacyDashboardFragmentTest.java
+++ b/tests/robotests/src/com/android/settings/privacy/PrivacyDashboardFragmentTest.java
@@ -16,53 +16,89 @@
 
 package com.android.settings.privacy;
 
-import static org.mockito.Mockito.mock;
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
-import android.app.ActionBar;
 import android.content.Context;
+import android.content.pm.UserInfo;
 import android.os.Bundle;
+import android.os.UserManager;
+import android.permission.PermissionControllerManager;
 import android.view.View;
 
-import androidx.fragment.app.FragmentActivity;
-import androidx.recyclerview.widget.RecyclerView;
-
-import com.android.settingslib.core.lifecycle.Lifecycle;
+import com.android.internal.widget.LockPatternUtils;
+import com.android.settings.testutils.FakeFeatureFactory;
+import com.android.settings.testutils.shadow.ShadowPermissionControllerManager;
+import com.android.settings.testutils.shadow.ShadowUserManager;
 
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.robolectric.Robolectric;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
 import org.robolectric.RobolectricTestRunner;
 import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+import org.robolectric.shadow.api.Shadow;
+import org.robolectric.shadows.androidx.fragment.FragmentController;
+
 
 @RunWith(RobolectricTestRunner.class)
+@Config(shadows = {ShadowUserManager.class, ShadowPermissionControllerManager.class})
 public class PrivacyDashboardFragmentTest {
 
+    @Mock
+    private LockPatternUtils mLockPatternUtils;
+    @Mock
+    private PermissionControllerManager mPCM;
+
     private Context mContext;
     private PrivacyDashboardFragment mFragment;
 
     @Before
     public void setUp() {
+        MockitoAnnotations.initMocks(this);
         mContext = RuntimeEnvironment.application;
-        mFragment = spy(new PrivacyDashboardFragment());
+        final UserManager userManager = mContext.getSystemService(UserManager.class);
+        final ShadowUserManager shadowUserManager = Shadow.extract(userManager);
+        shadowUserManager.addProfile(new UserInfo(123, null, 0));
+        when(FakeFeatureFactory.setupForTest().securityFeatureProvider.getLockPatternUtils(
+                any(Context.class))).thenReturn(mLockPatternUtils);
+        mFragment = spy(FragmentController.of(new PrivacyDashboardFragment())
+                .create().start().get());
     }
 
     @Test
     public void onViewCreated_shouldCallStyleActionBar() {
-        final FragmentActivity activity = spy(
-                Robolectric.buildActivity(FragmentActivity.class).get());
-        final ActionBar actionBar = mock(ActionBar.class);
-
-        when(mFragment.getActivity()).thenReturn(activity);
-        when(mFragment.getSettingsLifecycle()).thenReturn(mock(Lifecycle.class));
-        when(mFragment.getListView()).thenReturn(mock(RecyclerView.class));
-        when(activity.getActionBar()).thenReturn(actionBar);
-
         mFragment.onViewCreated(new View(mContext), new Bundle());
 
         verify(mFragment).styleActionBar();
     }
+
+    @Test
+    public void onViewCreated_shouldInitLinearProgressBar() {
+        mFragment.onViewCreated(new View(mContext), new Bundle());
+
+        verify(mFragment).initLoadingBar();
+    }
+
+    @Test
+    public void updateLinearProgressbar_isVisible_shouldShowProgressBar() {
+        mFragment.setLoadingEnabled(true /* enabled */);
+
+        assertThat(mFragment.mProgressHeader.getVisibility()).isEqualTo(View.VISIBLE);
+        assertThat(mFragment.mProgressAnimation.getVisibility()).isEqualTo(View.VISIBLE);
+    }
+
+    @Test
+    public void updateLinearProgressbar_isInVisible_shouldHideProgressBar() {
+        mFragment.setLoadingEnabled(false /* enabled */);
+
+        assertThat(mFragment.mProgressHeader.getVisibility()).isEqualTo(View.INVISIBLE);
+        assertThat(mFragment.mProgressAnimation.getVisibility()).isEqualTo(View.INVISIBLE);
+    }
 }
diff --git a/tests/robotests/src/com/android/settings/testutils/shadow/ShadowPermissionControllerManager.java b/tests/robotests/src/com/android/settings/testutils/shadow/ShadowPermissionControllerManager.java
new file mode 100644
index 0000000..091b244
--- /dev/null
+++ b/tests/robotests/src/com/android/settings/testutils/shadow/ShadowPermissionControllerManager.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.testutils.shadow;
+
+import android.annotation.CallbackExecutor;
+import android.content.Context;
+import android.permission.PermissionControllerManager;
+
+import androidx.annotation.NonNull;
+
+import org.robolectric.annotation.Implementation;
+import org.robolectric.annotation.Implements;
+
+import java.util.concurrent.Executor;
+
+@Implements(PermissionControllerManager.class)
+public class ShadowPermissionControllerManager {
+
+    protected void __constructor__(Context context) {
+        // no nothing, everything is shadowed
+    }
+
+    @Implementation
+    public void getPermissionUsages(boolean countSystem, long numMillis,
+            @NonNull @CallbackExecutor Executor executor,
+            @NonNull PermissionControllerManager.OnPermissionUsageResultCallback callback) {
+
+        // Do nothing
+    }
+}