From 827267dc69caf4deb8bef2cb01433f70c0e02270 Mon Sep 17 00:00:00 2001
From: Xinyi Zhou <zxy@google.com>
Date: Thu, 4 Aug 2022 15:02:16 -0700
Subject: [PATCH] Add back Fast Pair MainSwitch logic

Bug: 203579197
Test: -m
Change-Id: I861ece6cf6dd50c982fccc56f84f63243120e250
---
 .../nearby/FastPairSettingsFragment.java      | 24 ++++++++++++++++---
 1 file changed, 21 insertions(+), 3 deletions(-)

diff --git a/src/com/android/settings/nearby/FastPairSettingsFragment.java b/src/com/android/settings/nearby/FastPairSettingsFragment.java
index a92833a3db7..2fff7a0dee0 100644
--- a/src/com/android/settings/nearby/FastPairSettingsFragment.java
+++ b/src/com/android/settings/nearby/FastPairSettingsFragment.java
@@ -21,6 +21,7 @@ import android.content.ComponentName;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
+import android.nearby.NearbyManager;
 import android.os.Bundle;
 import android.provider.Settings;
 import android.text.TextUtils;
@@ -34,6 +35,7 @@ import com.android.settings.SettingsPreferenceFragment;
 import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settingslib.search.SearchIndexable;
 import com.android.settingslib.widget.MainSwitchPreference;
+import com.android.settingslib.widget.OnMainSwitchChangeListener;
 
 import java.util.Objects;
 
@@ -48,14 +50,17 @@ public class FastPairSettingsFragment extends SettingsPreferenceFragment {
     private static final String SCAN_SWITCH_KEY = "fast_pair_scan_switch";
     private static final String SAVED_DEVICES_PREF_KEY = "saved_devices";
 
+    private MainSwitchPreference mMainSwitchPreference;
+    private OnMainSwitchChangeListener mMainSwitchChangeListener;
+
     @Override
     public void onCreate(Bundle icicle) {
         super.onCreate(icicle);
 
-        MainSwitchPreference mainSwitchPreference = Objects.requireNonNull(
+        mMainSwitchPreference = Objects.requireNonNull(
                 findPreference(SCAN_SWITCH_KEY));
-        mainSwitchPreference.setChecked(false);
-
+        mMainSwitchChangeListener = (switchView, isChecked) ->
+                NearbyManager.setFastPairScanEnabled(getContext(), isChecked);
         Preference savedDevicePref = Objects.requireNonNull(
                 findPreference(SAVED_DEVICES_PREF_KEY));
         savedDevicePref.setOnPreferenceClickListener(preference -> {
@@ -67,6 +72,19 @@ public class FastPairSettingsFragment extends SettingsPreferenceFragment {
         });
     }
 
+    @Override
+    public void onResume() {
+        super.onResume();
+        mMainSwitchPreference.addOnSwitchChangeListener(mMainSwitchChangeListener);
+        mMainSwitchPreference.setChecked(NearbyManager.isFastPairScanEnabled(getContext()));
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        mMainSwitchPreference.removeOnSwitchChangeListener(mMainSwitchChangeListener);
+    }
+
     @Override
     public int getMetricsCategory() {
         return SettingsEnums.CONNECTION_DEVICE_ADVANCED_FAST_PAIR;