diff --git a/nearby/service/java/com/android/server/nearby/NearbyService.java b/nearby/service/java/com/android/server/nearby/NearbyService.java
index f471a58..dcd802e 100644
--- a/nearby/service/java/com/android/server/nearby/NearbyService.java
+++ b/nearby/service/java/com/android/server/nearby/NearbyService.java
@@ -20,6 +20,7 @@
 import android.util.Log;
 
 import com.android.server.SystemService;
+import com.android.server.nearby.common.locator.LocatorContextWrapper;
 import com.android.server.nearby.fastpair.FastPairManager;
 
 /**
@@ -30,16 +31,19 @@
 public class NearbyService extends SystemService {
     private static final String TAG = "NearbyService";
     private static final boolean DBG = true;
-    private Context mContext;
-
     private final NearbyServiceImpl mImpl;
     private final FastPairManager mFastPairManager;
 
+    private LocatorContextWrapper mLocatorContextWrapper;
+
+
+
     public NearbyService(Context contextBase) {
         super(contextBase);
-        mContext = contextBase;
         mImpl = new NearbyServiceImpl(contextBase);
-        mFastPairManager = new FastPairManager(contextBase);
+        mLocatorContextWrapper = new LocatorContextWrapper(contextBase, null);
+        mFastPairManager = new FastPairManager(mLocatorContextWrapper);
+
     }
 
     @Override
diff --git a/nearby/service/java/com/android/server/nearby/common/locator/Locator.java b/nearby/service/java/com/android/server/nearby/common/locator/Locator.java
index 40d77df..f8b43a6 100644
--- a/nearby/service/java/com/android/server/nearby/common/locator/Locator.java
+++ b/nearby/service/java/com/android/server/nearby/common/locator/Locator.java
@@ -135,7 +135,6 @@
     public <T> T getOptional(Class<T> type) {
         Locator locator = this;
         do {
-
             T instance = locator.getInstance(type);
             if (instance != null) {
                 return instance;
@@ -227,6 +226,17 @@
     }
 
     /**
+     * Find the first locator from the context wrapper.
+     */
+    public static <T> T getFromContextWrapper(LocatorContextWrapper wrapper, Class<T> type) {
+        Locator locator = wrapper.getLocator();
+        if (locator == null) {
+            throw new IllegalStateException("No locator found in context wrapper");
+        }
+        return locator.get(type);
+    }
+
+    /**
      * Finds the first locator, then searches the chain of locators for a binding for the given
      * type.
      * Returns null if no binding was found.
diff --git a/nearby/service/java/com/android/server/nearby/common/locator/LocatorContextWrapper.java b/nearby/service/java/com/android/server/nearby/common/locator/LocatorContextWrapper.java
index 9dddcdb..03df33f 100644
--- a/nearby/service/java/com/android/server/nearby/common/locator/LocatorContextWrapper.java
+++ b/nearby/service/java/com/android/server/nearby/common/locator/LocatorContextWrapper.java
@@ -25,9 +25,11 @@
  */
 public class LocatorContextWrapper extends ContextWrapper implements LocatorContext {
     private final Locator mLocator;
+    private final Context mContext;
     /** Constructs a context wrapper with a Locator linked to the passed locator. */
     public LocatorContextWrapper(Context context, @Nullable Locator parentLocator) {
         super(context);
+        mContext = context;
         // Assigning under initialization object, but it's safe, since locator is used lazily.
         this.mLocator = new Locator(this, parentLocator);
     }
@@ -41,6 +43,13 @@
         this(context, Locator.findLocator(context));
     }
 
+    /**
+     * Get the context of the context wrapper.
+     */
+    public Context getContext() {
+        return mContext;
+    }
+
     @Override
     public Locator getLocator() {
         return mLocator;
diff --git a/nearby/service/java/com/android/server/nearby/fastpair/FastPairManager.java b/nearby/service/java/com/android/server/nearby/fastpair/FastPairManager.java
index d46b488..1487d4b 100644
--- a/nearby/service/java/com/android/server/nearby/fastpair/FastPairManager.java
+++ b/nearby/service/java/com/android/server/nearby/fastpair/FastPairManager.java
@@ -22,27 +22,38 @@
 import android.content.IntentFilter;
 import android.util.Log;
 
+import com.android.server.nearby.common.locator.Locator;
+import com.android.server.nearby.common.locator.LocatorContextWrapper;
+import com.android.server.nearby.fastpair.cache.FastPairCacheManager;
+
 /**
  * FastPairManager is the class initiated in nearby service to handle Fast Pair related
  * work.
  */
 public class FastPairManager {
-    Context mContext;
+    LocatorContextWrapper mLocatorContextWrapper;
     IntentFilter mIntentFilter;
+    Locator mLocator;
     private BroadcastReceiver mScreenBroadcastReceiver = new BroadcastReceiver() {
         @Override
         public void onReceive(Context context, Intent intent) {
             if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) {
                 Log.d("FastPairService", " screen on");
+                // STOPSHIP(b/202335820): Remove this logic in prod.
+                Locator.getFromContextWrapper(mLocatorContextWrapper, FastPairCacheManager.class)
+                        .printLog();
             } else {
                 Log.d("FastPairService", " screen off");
             }
         }
     };
 
-    public FastPairManager(Context context) {
-        mContext = context;
+
+    public FastPairManager(LocatorContextWrapper contextWrapper) {
+        mLocatorContextWrapper = contextWrapper;
         mIntentFilter = new IntentFilter();
+        mLocator = mLocatorContextWrapper.getLocator();
+        mLocator.bind(new FastPairModule());
     }
 
     /**
@@ -51,13 +62,16 @@
     public void initiate() {
         mIntentFilter.addAction(Intent.ACTION_SCREEN_ON);
         mIntentFilter.addAction(Intent.ACTION_SCREEN_OFF);
-        mContext.registerReceiver(mScreenBroadcastReceiver, mIntentFilter);
+        mLocatorContextWrapper.getContext()
+                .registerReceiver(mScreenBroadcastReceiver, mIntentFilter);
+
+        Locator.getFromContextWrapper(mLocatorContextWrapper, FastPairCacheManager.class);
     }
 
     /**
      * Function to free up fast pair resource.
      */
     public void cleanUp() {
-        mContext.unregisterReceiver(mScreenBroadcastReceiver);
+        mLocatorContextWrapper.getContext().unregisterReceiver(mScreenBroadcastReceiver);
     }
 }
diff --git a/nearby/service/java/com/android/server/nearby/fastpair/FastPairModule.java b/nearby/service/java/com/android/server/nearby/fastpair/FastPairModule.java
new file mode 100644
index 0000000..59edac0
--- /dev/null
+++ b/nearby/service/java/com/android/server/nearby/fastpair/FastPairModule.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2021 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.server.nearby.fastpair;
+
+import android.content.Context;
+
+import com.android.server.nearby.common.locator.Locator;
+import com.android.server.nearby.common.locator.Module;
+import com.android.server.nearby.fastpair.cache.FastPairCacheManager;
+
+/**
+ * Module that associates all of the fast pair related singleton class
+ */
+public class FastPairModule extends Module {
+    /**
+     * Initiate the class that needs to be singleton.
+     */
+    @Override
+    public void configure(Context context, Class<?> type, Locator locator) {
+        if (type.equals(FastPairCacheManager.class)) {
+            locator.bind(FastPairCacheManager.class, new FastPairCacheManager(context));
+        }
+
+    }
+
+    /**
+     * Clean up the singleton classes.
+     */
+    @Override
+    public void destroy(Context context, Class<?> type, Object instance) {
+        super.destroy(context, type, instance);
+    }
+}
diff --git a/nearby/service/java/com/android/server/nearby/fastpair/cache/FastPairCacheManager.java b/nearby/service/java/com/android/server/nearby/fastpair/cache/FastPairCacheManager.java
new file mode 100644
index 0000000..30871eb
--- /dev/null
+++ b/nearby/service/java/com/android/server/nearby/fastpair/cache/FastPairCacheManager.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2021 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.server.nearby.fastpair.cache;
+
+import android.content.Context;
+import android.util.Log;
+
+/**
+ * Save FastPair device info to database to avoid multiple requesting.
+ */
+public class FastPairCacheManager {
+    public FastPairCacheManager(Context context) {
+    }
+
+    /**
+     * Test function to verify FastPairCacheManager setup.
+     */
+    public void printLog() {
+        Log.d("FastPairCacheManager", "print log");
+    }
+}
diff --git a/nearby/tests/src/com/android/server/nearby/fastpair/FastPairManagerTest.java b/nearby/tests/src/com/android/server/nearby/fastpair/FastPairManagerTest.java
index 429fc89..bbf8cdf 100644
--- a/nearby/tests/src/com/android/server/nearby/fastpair/FastPairManagerTest.java
+++ b/nearby/tests/src/com/android/server/nearby/fastpair/FastPairManagerTest.java
@@ -22,6 +22,8 @@
 
 import android.content.Context;
 
+import com.android.server.nearby.common.locator.LocatorContextWrapper;
+
 import org.junit.Before;
 import org.junit.Test;
 import org.mockito.Mock;
@@ -31,11 +33,13 @@
 public class FastPairManagerTest {
     private FastPairManager mFastPairManager;
     @Mock private Context mContext;
+    private LocatorContextWrapper mLocatorContextWrapper;
 
     @Before
     public void setup() {
         MockitoAnnotations.initMocks(this);
-        mFastPairManager = new FastPairManager(mContext);
+        mLocatorContextWrapper = new LocatorContextWrapper(mContext);
+        mFastPairManager = new FastPairManager(mLocatorContextWrapper);
     }
 
     @Test