Fix double divider in Privacy page

The second divider is shown after we set a background to the pinned
header.

- Simply hide the pinned header instead of its inner views.
- Move setActionBarShadowAnimation to controller and just call it when
  the bar chart is available.

Fixes: 134652710
Test: robotest, visual
Change-Id: I4381e5ca1a042583d3e5874f5600719267b19786

src/com/android/settings/privacy/PermissionBarChartPreferenceController.java

@@ -123,10 +123,13 @@ public class PermissionBarChartPreferenceController extends BasePreferenceContro
             return;
         }
 
+        // Add a shadow animation to action bar scroll only when the chart is available.
+        com.android.settings.Utils.setActionBarShadowAnimation(mParent.getActivity(),
+                mParent.getSettingsLifecycle(), mParent.getListView());
         // We don't hide chart when we have existing data.
         mBarChartPreference.updateLoadingState(mOldUsageInfos.isEmpty() /* isLoading */);
         // But we still need to hint user with progress bar that we are updating new usage data.
-        mParent.setLoadingEnabled(true /* enabled */);
+        mParent.showPinnedHeader(true);
         retrievePermissionUsageData();
     }
 
@@ -162,7 +165,7 @@ public class PermissionBarChartPreferenceController extends BasePreferenceContro
         }
 
         mBarChartPreference.updateLoadingState(false /* isLoading */);
-        mParent.setLoadingEnabled(false /* enabled */);
+        mParent.showPinnedHeader(false);
     }
 
     private void retrievePermissionUsageData() {

src/com/android/settings/privacy/PrivacyDashboardFragment.java

@@ -45,11 +45,6 @@ public class PrivacyDashboardFragment extends DashboardFragment {
     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;
@@ -84,23 +79,13 @@ public class PrivacyDashboardFragment extends DashboardFragment {
     @Override
     public void onViewCreated(View view, Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
-        Utils.setActionBarShadowAnimation(getActivity(), getSettingsLifecycle(), getListView());
         initLoadingBar();
     }
 
     @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);
-        }
+        setPinnedHeaderView(R.layout.progress_header);
+        showPinnedHeader(false);
     }
 
     private static List<AbstractPreferenceController> buildPreferenceControllers(

tests/robotests/src/com/android/settings/privacy/PermissionBarChartPreferenceControllerTest.java

@@ -103,8 +103,7 @@ public class PermissionBarChartPreferenceControllerTest {
                 .create().start().get());
         mController.setFragment(mFragment);
         mPreference = spy(new BarChartPreference(context));
-        when(mScreen.findPreference(mController.getPreferenceKey()))
-                .thenReturn((BarChartPreference) mPreference);
+        when(mScreen.findPreference(mController.getPreferenceKey())).thenReturn(mPreference);
     }
 
     @After
@@ -189,7 +188,8 @@ public class PermissionBarChartPreferenceControllerTest {
 
         mController.onStart();
 
-        verify(mFragment).setLoadingEnabled(true /* enabled */);
+        assertThat(mFragment.getActivity().getActionBar().getElevation()).isZero();
+        verify(mFragment).showPinnedHeader(true);
         verify(mPreference).updateLoadingState(true /* isLoading */);
     }
 
@@ -205,7 +205,8 @@ public class PermissionBarChartPreferenceControllerTest {
 
         mController.onStart();
 
-        verify(mFragment).setLoadingEnabled(true /* enabled */);
+        assertThat(mFragment.getActivity().getActionBar().getElevation()).isZero();
+        verify(mFragment).showPinnedHeader(true);
         verify(mPreference).updateLoadingState(false /* isLoading */);
     }
 
@@ -217,7 +218,8 @@ public class PermissionBarChartPreferenceControllerTest {
 
         mController.onStart();
 
-        verify(mFragment, never()).setLoadingEnabled(true /* enabled */);
+        assertThat(mFragment.getActivity().getActionBar().getElevation()).isNonZero();
+        verify(mFragment, never()).showPinnedHeader(true);
         verify(mPreference, never()).updateLoadingState(true /* isLoading */);
     }
 
@@ -231,7 +233,7 @@ public class PermissionBarChartPreferenceControllerTest {
 
         mController.onPermissionUsageResult(infos1);
 
-        verify(mFragment).setLoadingEnabled(false /* enabled */);
+        verify(mFragment).showPinnedHeader(false);
         verify(mPreference).updateLoadingState(false /* isLoading */);
     }
 

tests/robotests/src/com/android/settings/privacy/PrivacyDashboardFragmentTest.java

@@ -16,8 +16,6 @@
 
 package com.android.settings.privacy;
 
-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;
@@ -27,7 +25,6 @@ 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 android.view.accessibility.AccessibilityManager;
 
@@ -57,8 +54,6 @@ public class PrivacyDashboardFragmentTest {
 
     @Mock
     private LockPatternUtils mLockPatternUtils;
-    @Mock
-    private PermissionControllerManager mPCM;
 
     private Context mContext;
     private PrivacyDashboardFragment mFragment;
@@ -79,33 +74,10 @@ public class PrivacyDashboardFragmentTest {
                 .create().start().get());
     }
 
-    @Test
-    public void onViewCreated_shouldSetActionBarShadowAnimation() {
-        mFragment.onViewCreated(new View(mContext), new Bundle());
-
-        assertThat(mFragment.getActivity().getActionBar().getElevation()).isEqualTo(0.f);
-    }
-
     @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);
-    }
 }