Make sure TileServices get onTileRemoved on reset

Test: runtest systemui
Change-Id: Ic23eb6759f99c9cfe45ab975b3bb723dae56e0d8
Fixes: 34481238

packages/SystemUI/src/com/android/systemui/qs/customize/QSCustomizer.java

@@ -209,7 +209,7 @@ public class QSCustomizer extends LinearLayout implements OnMenuItemClickListene
         for (String tile : defTiles.split(",")) {
             tiles.add(tile);
         }
-        mTileAdapter.setTileSpecs(tiles);
+        mTileAdapter.resetTileSpecs(mHost, tiles);
     }
 
     private void setTileSpecs() {

packages/SystemUI/src/com/android/systemui/qs/customize/TileAdapter.java

@@ -114,6 +114,12 @@ public class TileAdapter extends RecyclerView.Adapter<Holder> implements TileSta
         mCurrentSpecs = newSpecs;
     }
 
+    public void resetTileSpecs(QSTileHost host, List<String> specs) {
+        // Notify the host so the tiles get removed callbacks.
+        host.changeTiles(mCurrentSpecs, specs);
+        setTileSpecs(specs);
+    }
+
     public void setTileSpecs(List<String> currentSpecs) {
         if (currentSpecs.equals(mCurrentSpecs)) {
             return;

packages/SystemUI/tests/src/com/android/systemui/qs/customize/TileAdapterTest.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2017 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.systemui.qs.customize;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+
+import android.testing.AndroidTestingRunner;
+import android.testing.TestableLooper;
+import android.testing.TestableLooper.RunWithLooper;
+
+import com.android.systemui.SysuiTestCase;
+import com.android.systemui.qs.QSTileHost;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.Collections;
+
+@RunWith(AndroidTestingRunner.class)
+@RunWithLooper
+public class TileAdapterTest extends SysuiTestCase {
+
+    private TileAdapter mTileAdapter;
+
+    @Before
+    public void setup() throws Exception {
+        TestableLooper.get(this).runWithLooper(() -> mTileAdapter = new TileAdapter(mContext));
+    }
+
+    @Test
+    public void testResetNotifiesHost() {
+        QSTileHost host = mock(QSTileHost.class);
+        mTileAdapter.resetTileSpecs(host, Collections.emptyList());
+        verify(host).changeTiles(any(), any());
+    }
+}