Ensure keyguard slice use correct colors

Change-Id: I0406f8092583174e60ee5c89a71047288cbe480a
Fixes: 73538050
Test: atest packages/SystemUI/tests/src/com/android/keyguard/KeyguardSliceViewTest.java
diff --git a/packages/SystemUI/res-keyguard/layout/keyguard_status_area.xml b/packages/SystemUI/res-keyguard/layout/keyguard_status_area.xml
index d0389eb..828c9df 100644
--- a/packages/SystemUI/res-keyguard/layout/keyguard_status_area.xml
+++ b/packages/SystemUI/res-keyguard/layout/keyguard_status_area.xml
@@ -34,6 +34,7 @@
               android:layout_marginBottom="7dp"
               android:paddingStart="64dp"
               android:paddingEnd="64dp"
+              android:textColor="?attr/wallpaperTextColor"
               android:theme="@style/TextAppearance.Keyguard"
     />
     <LinearLayout android:id="@+id/row"
diff --git a/packages/SystemUI/res-keyguard/layout/keyguard_status_view.xml b/packages/SystemUI/res-keyguard/layout/keyguard_status_view.xml
index 31635a5..713c573 100644
--- a/packages/SystemUI/res-keyguard/layout/keyguard_status_view.xml
+++ b/packages/SystemUI/res-keyguard/layout/keyguard_status_view.xml
@@ -76,6 +76,7 @@
                 android:layout_marginTop="22dp"
                 android:layout_below="@id/clock_view"
                 android:background="#f00"
+                android:backgroundTint="?attr/wallpaperTextColor"
                 android:layout_centerHorizontal="true" />
 
             <include layout="@layout/keyguard_status_area"
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardSliceView.java b/packages/SystemUI/src/com/android/keyguard/KeyguardSliceView.java
index 5d1bdab..cecaaa9 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardSliceView.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardSliceView.java
@@ -16,6 +16,7 @@
 
 package com.android.keyguard;
 
+import android.annotation.ColorInt;
 import android.app.PendingIntent;
 import android.arch.lifecycle.LiveData;
 import android.arch.lifecycle.Observer;
@@ -34,6 +35,7 @@
 import android.widget.LinearLayout;
 import android.widget.TextView;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.graphics.ColorUtils;
 import com.android.settingslib.Utils;
 import com.android.systemui.Dependency;
@@ -307,10 +309,17 @@
         }
     }
 
-    public int getTextColor() {
+    @VisibleForTesting
+    int getTextColor() {
         return ColorUtils.blendARGB(mTextColor, Color.WHITE, mDarkAmount);
     }
 
+    @VisibleForTesting
+    void setTextColor(@ColorInt int textColor) {
+        mTextColor = textColor;
+        updateTextColors();
+    }
+
     /**
      * Representation of an item that appears under the clock on main keyguard message.
      */
diff --git a/packages/SystemUI/tests/src/com/android/keyguard/KeyguardSliceViewTest.java b/packages/SystemUI/tests/src/com/android/keyguard/KeyguardSliceViewTest.java
new file mode 100644
index 0000000..7686948
--- /dev/null
+++ b/packages/SystemUI/tests/src/com/android/keyguard/KeyguardSliceViewTest.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2018 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.keyguard;
+
+import android.graphics.Color;
+import android.test.suitebuilder.annotation.SmallTest;
+import android.testing.AndroidTestingRunner;
+import android.testing.TestableLooper.RunWithLooper;
+import android.view.LayoutInflater;
+
+import com.android.systemui.SysuiTestCase;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@SmallTest
+@RunWithLooper
+@RunWith(AndroidTestingRunner.class)
+public class KeyguardSliceViewTest extends SysuiTestCase {
+    private KeyguardSliceView mKeyguardSliceView;
+
+    @Before
+    public void setUp() throws Exception {
+        mKeyguardSliceView = (KeyguardSliceView) LayoutInflater.from(getContext())
+                .inflate(R.layout.keyguard_status_area, null);
+    }
+
+    @Test
+    public void getTextColor_whiteTextWhenAOD() {
+        // Set text color to red since the default is white and test would always pass
+        mKeyguardSliceView.setTextColor(Color.RED);
+        mKeyguardSliceView.setDark(0);
+        Assert.assertEquals("Should be using regular text color", Color.RED,
+                mKeyguardSliceView.getTextColor());
+        mKeyguardSliceView.setDark(1);
+        Assert.assertEquals("Should be using AOD text color", Color.WHITE,
+                mKeyguardSliceView.getTextColor());
+    }
+}
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