Add shadow to "Don't suggest app" drop target

Bug: 142753423
Change-Id: I909409f68bd9a4a04d13a8470a0b65823f42eca7
diff --git a/res/drawable-v24/ic_block_shadow.xml b/res/drawable-v24/ic_block_shadow.xml
new file mode 100644
index 0000000..045fe8d
--- /dev/null
+++ b/res/drawable-v24/ic_block_shadow.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2020 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.
+-->
+<com.android.launcher3.graphics.ShadowDrawable
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:src="@drawable/ic_block_no_shadow"
+    android:elevation="@dimen/drop_target_shadow_elevation" />
diff --git a/res/drawable/ic_block.xml b/res/drawable/ic_block_no_shadow.xml
similarity index 100%
rename from res/drawable/ic_block.xml
rename to res/drawable/ic_block_no_shadow.xml
diff --git a/res/values/drawables.xml b/res/values/drawables.xml
index 1367174..9c57ec1 100644
--- a/res/values/drawables.xml
+++ b/res/values/drawables.xml
@@ -17,4 +17,5 @@
     <drawable name="ic_setup_shadow">@drawable/ic_setting</drawable>
     <drawable name="ic_remove_shadow">@drawable/ic_remove_no_shadow</drawable>
     <drawable name="ic_uninstall_shadow">@drawable/ic_uninstall_no_shadow</drawable>
+    <drawable name="ic_block_shadow">@drawable/ic_block_no_shadow</drawable>
 </resources>
\ No newline at end of file
diff --git a/src/com/android/launcher3/SecondaryDropTarget.java b/src/com/android/launcher3/SecondaryDropTarget.java
index 2430d5e..983c289 100644
--- a/src/com/android/launcher3/SecondaryDropTarget.java
+++ b/src/com/android/launcher3/SecondaryDropTarget.java
@@ -108,7 +108,7 @@
             updateText(R.string.uninstall_drop_target_label);
         } else if (action == DISMISS_PREDICTION) {
             mHoverColor = Themes.getColorAccent(getContext());
-            setDrawable(R.drawable.ic_block);
+            setDrawable(R.drawable.ic_block_shadow);
             updateText(R.string.dismiss_prediction_label);
         } else if (action == RECONFIGURE) {
             mHoverColor = Themes.getColorAccent(getContext());