diff --git a/src/com/android/settings/accounts/AccountPreferenceBase.java b/src/com/android/settings/accounts/AccountPreferenceBase.java
index 7c3b54c5f07..54ddf64eaaf 100644
--- a/src/com/android/settings/accounts/AccountPreferenceBase.java
+++ b/src/com/android/settings/accounts/AccountPreferenceBase.java
@@ -23,18 +23,16 @@ import android.content.Context;
 import android.content.SyncStatusObserver;
 import android.graphics.drawable.Drawable;
 import android.os.Bundle;
-import android.os.Handler;
 import android.os.UserHandle;
 import android.os.UserManager;
-import android.support.v7.preference.PreferenceScreen;
 import android.text.format.DateFormat;
 import android.util.Log;
 
 import com.android.settings.SettingsPreferenceFragment;
 import com.android.settings.Utils;
 import com.android.settingslib.accounts.AuthenticatorHelper;
+import com.android.settingslib.utils.ThreadUtils;
 
-import java.util.ArrayList;
 import java.util.Date;
 
 abstract class AccountPreferenceBase extends SettingsPreferenceFragment
@@ -46,8 +44,6 @@ abstract class AccountPreferenceBase extends SettingsPreferenceFragment
     public static final String AUTHORITIES_FILTER_KEY = "authorities";
     public static final String ACCOUNT_TYPES_FILTER_KEY = "account_types";
 
-    private final Handler mHandler = new Handler();
-
     private UserManager mUm;
     private Object mStatusChangeListenerHandle;
     protected AuthenticatorHelper mAuthenticatorHelper;
@@ -118,29 +114,8 @@ abstract class AccountPreferenceBase extends SettingsPreferenceFragment
         ContentResolver.removeStatusChangeListener(mStatusChangeListenerHandle);
     }
 
-    private SyncStatusObserver mSyncStatusObserver = new SyncStatusObserver() {
-        public void onStatusChanged(int which) {
-            mHandler.post(new Runnable() {
-                public void run() {
-                    onSyncStateUpdated();
-                }
-            });
-        }
-    };
-
-    public ArrayList<String> getAuthoritiesForAccountType(String type) {
-        return mAuthenticatorHelper.getAuthoritiesForAccountType(type);
-    }
-
-    /**
-     * Gets the preferences.xml file associated with a particular account type.
-     * @param accountType the type of account
-     * @return a PreferenceScreen inflated from accountPreferenceId.
-     */
-    public PreferenceScreen addPreferencesForType(final String accountType,
-            PreferenceScreen parent) {
-        return mAccountTypePreferenceLoader.addPreferencesForType(accountType, parent);
-    }
+    private SyncStatusObserver mSyncStatusObserver =
+            which -> ThreadUtils.postOnMainThread(() -> onSyncStateUpdated());
 
     public void updateAuthDescriptions() {
         mAuthenticatorHelper.updateAuthDescriptions(getActivity());
diff --git a/src/com/android/settings/applications/RunningServiceDetails.java b/src/com/android/settings/applications/RunningServiceDetails.java
index 84c2ee52dd1..7e73a9b5001 100644
--- a/src/com/android/settings/applications/RunningServiceDetails.java
+++ b/src/com/android/settings/applications/RunningServiceDetails.java
@@ -21,7 +21,6 @@ import android.content.pm.ServiceInfo;
 import android.content.res.Resources;
 import android.os.Bundle;
 import android.os.Debug;
-import android.os.Handler;
 import android.os.SystemClock;
 import android.os.UserHandle;
 import android.provider.Settings;
@@ -37,6 +36,7 @@ import com.android.settings.R;
 import com.android.settings.Utils;
 import com.android.settings.core.InstrumentedPreferenceFragment;
 import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
+import com.android.settingslib.utils.ThreadUtils;
 
 import java.io.File;
 import java.io.FileInputStream;
@@ -481,15 +481,12 @@ public class RunningServiceDetails extends InstrumentedPreferenceFragment
             addDetailViews();
         }
     }
-    
+
     private void finish() {
-        (new Handler()).post(new Runnable() {
-            @Override
-            public void run() {
-                Activity a = getActivity();
-                if (a != null) {
-                    a.onBackPressed();
-                }
+        ThreadUtils.postOnMainThread(() -> {
+            final Activity a = getActivity();
+            if (a != null) {
+                a.onBackPressed();
             }
         });
     }
diff --git a/src/com/android/settings/applications/defaultapps/DefaultAutofillPicker.java b/src/com/android/settings/applications/defaultapps/DefaultAutofillPicker.java
index 00dedf9ff68..97f6d4bec5e 100644
--- a/src/com/android/settings/applications/defaultapps/DefaultAutofillPicker.java
+++ b/src/com/android/settings/applications/defaultapps/DefaultAutofillPicker.java
@@ -27,7 +27,6 @@ import android.content.pm.ResolveInfo;
 import android.content.pm.ServiceInfo;
 import android.net.Uri;
 import android.os.Bundle;
-import android.os.Handler;
 import android.provider.Settings;
 import android.service.autofill.AutofillService;
 import android.service.autofill.AutofillServiceInfo;
@@ -39,6 +38,7 @@ import android.util.Log;
 import com.android.internal.content.PackageMonitor;
 import com.android.internal.logging.nano.MetricsProto;
 import com.android.settings.R;
+import com.android.settingslib.utils.ThreadUtils;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -59,7 +59,6 @@ public class DefaultAutofillPicker extends DefaultAppPickerFragment {
      * Set when the fragment is implementing ACTION_REQUEST_SET_AUTOFILL_SERVICE.
      */
     private DialogInterface.OnClickListener mCancelListener;
-    private final Handler mHandler = new Handler();
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
@@ -123,17 +122,17 @@ public class DefaultAutofillPicker extends DefaultAppPickerFragment {
     private final PackageMonitor mSettingsPackageMonitor = new PackageMonitor() {
         @Override
         public void onPackageAdded(String packageName, int uid) {
-            mHandler.post(() -> update());
+            ThreadUtils.postOnMainThread(() -> update());
         }
 
         @Override
         public void onPackageModified(String packageName) {
-            mHandler.post(() -> update());
+            ThreadUtils.postOnMainThread(() -> update());
         }
 
         @Override
         public void onPackageRemoved(String packageName, int uid) {
-            mHandler.post(() -> update());
+            ThreadUtils.postOnMainThread(() -> update());
         }
     };
 
diff --git a/src/com/android/settings/dashboard/SummaryLoader.java b/src/com/android/settings/dashboard/SummaryLoader.java
index 4586a5580c1..5816bba8237 100644
--- a/src/com/android/settings/dashboard/SummaryLoader.java
+++ b/src/com/android/settings/dashboard/SummaryLoader.java
@@ -35,6 +35,7 @@ import com.android.settings.SettingsActivity;
 import com.android.settings.overlay.FeatureFactory;
 import com.android.settingslib.drawer.DashboardCategory;
 import com.android.settingslib.drawer.Tile;
+import com.android.settingslib.utils.ThreadUtils;
 
 import java.lang.reflect.Field;
 import java.util.List;
@@ -52,7 +53,6 @@ public class SummaryLoader {
     private final String mCategoryKey;
 
     private final Worker mWorker;
-    private final Handler mHandler;
     private final HandlerThread mWorkerThread;
 
     private SummaryConsumer mSummaryConsumer;
@@ -64,7 +64,6 @@ public class SummaryLoader {
         mDashboardFeatureProvider = FeatureFactory.getFactory(activity)
                 .getDashboardFeatureProvider(activity);
         mCategoryKey = null;
-        mHandler = new Handler();
         mWorkerThread = new HandlerThread("SummaryLoader", Process.THREAD_PRIORITY_BACKGROUND);
         mWorkerThread.start();
         mWorker = new Worker(mWorkerThread.getLooper());
@@ -82,7 +81,6 @@ public class SummaryLoader {
         mDashboardFeatureProvider = FeatureFactory.getFactory(activity)
                 .getDashboardFeatureProvider(activity);
         mCategoryKey = categoryKey;
-        mHandler = new Handler();
         mWorkerThread = new HandlerThread("SummaryLoader", Process.THREAD_PRIORITY_BACKGROUND);
         mWorkerThread.start();
         mWorker = new Worker(mWorkerThread.getLooper());
@@ -112,25 +110,22 @@ public class SummaryLoader {
 
     public void setSummary(SummaryProvider provider, final CharSequence summary) {
         final ComponentName component = mSummaryProviderMap.get(provider);
-        mHandler.post(new Runnable() {
-            @Override
-            public void run() {
+        ThreadUtils.postOnMainThread(() -> {
 
-                final Tile tile = getTileFromCategory(
-                        mDashboardFeatureProvider.getTilesForCategory(mCategoryKey), component);
+            final Tile tile = getTileFromCategory(
+                    mDashboardFeatureProvider.getTilesForCategory(mCategoryKey), component);
 
-                if (tile == null) {
-                    if (DEBUG) {
-                        Log.d(TAG, "Can't find tile for " + component);
-                    }
-                    return;
-                }
+            if (tile == null) {
                 if (DEBUG) {
-                    Log.d(TAG, "setSummary " + tile.title + " - " + summary);
+                    Log.d(TAG, "Can't find tile for " + component);
                 }
-
-                updateSummaryIfNeeded(tile, summary);
+                return;
             }
+            if (DEBUG) {
+                Log.d(TAG, "setSummary " + tile.title + " - " + summary);
+            }
+
+            updateSummaryIfNeeded(tile, summary);
         });
     }
 
diff --git a/src/com/android/settings/dashboard/SupportFragment.java b/src/com/android/settings/dashboard/SupportFragment.java
index 8a1a79b864a..fcc9f786172 100644
--- a/src/com/android/settings/dashboard/SupportFragment.java
+++ b/src/com/android/settings/dashboard/SupportFragment.java
@@ -27,8 +27,6 @@ import android.net.NetworkCapabilities;
 import android.net.NetworkInfo;
 import android.net.NetworkRequest;
 import android.os.Bundle;
-import android.os.Handler;
-import android.os.Looper;
 import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
@@ -40,6 +38,7 @@ import com.android.settings.R;
 import com.android.settings.core.InstrumentedFragment;
 import com.android.settings.overlay.FeatureFactory;
 import com.android.settings.overlay.SupportFeatureProvider;
+import com.android.settingslib.utils.ThreadUtils;
 
 /**
  * Fragment for support tab in SettingsGoogle.
@@ -47,7 +46,6 @@ import com.android.settings.overlay.SupportFeatureProvider;
 public final class SupportFragment extends InstrumentedFragment implements View.OnClickListener,
         OnAccountsUpdateListener {
 
-    private final Handler mHandler = new Handler(Looper.getMainLooper());
     private final ConnectivityManager.NetworkCallback mNetworkCallback =
             new ConnectivityManager.NetworkCallback() {
 
@@ -152,12 +150,9 @@ public final class SupportFragment extends InstrumentedFragment implements View.
     }
 
     private void postConnectivityChanged() {
-        mHandler.post(new Runnable() {
-            @Override
-            public void run() {
-                if (mSupportItemAdapter != null) {
-                    mSupportItemAdapter.setHasInternet(hasInternet());
-                }
+        ThreadUtils.postOnMainThread(() -> {
+            if (mSupportItemAdapter != null) {
+                mSupportItemAdapter.setHasInternet(hasInternet());
             }
         });
     }
diff --git a/src/com/android/settings/datausage/DataSaverBackend.java b/src/com/android/settings/datausage/DataSaverBackend.java
index f37a3c306a1..041a81f06be 100644
--- a/src/com/android/settings/datausage/DataSaverBackend.java
+++ b/src/com/android/settings/datausage/DataSaverBackend.java
@@ -14,24 +14,23 @@
 
 package com.android.settings.datausage;
 
+import static android.net.NetworkPolicyManager.POLICY_ALLOW_METERED_BACKGROUND;
+import static android.net.NetworkPolicyManager.POLICY_NONE;
+import static android.net.NetworkPolicyManager.POLICY_REJECT_METERED_BACKGROUND;
+
 import android.content.Context;
 import android.net.INetworkPolicyListener;
 import android.net.NetworkPolicyManager;
-import android.os.Handler;
-import android.os.Looper;
 import android.os.RemoteException;
 import android.util.SparseIntArray;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.settings.core.instrumentation.MetricsFeatureProvider;
 import com.android.settings.overlay.FeatureFactory;
+import com.android.settingslib.utils.ThreadUtils;
 
 import java.util.ArrayList;
 
-import static android.net.NetworkPolicyManager.POLICY_ALLOW_METERED_BACKGROUND;
-import static android.net.NetworkPolicyManager.POLICY_NONE;
-import static android.net.NetworkPolicyManager.POLICY_REJECT_METERED_BACKGROUND;
-
 public class DataSaverBackend {
 
     private static final String TAG = "DataSaverBackend";
@@ -39,7 +38,6 @@ public class DataSaverBackend {
     private final Context mContext;
     private final MetricsFeatureProvider mMetricsFeatureProvider;
 
-    private final Handler mHandler = new Handler(Looper.getMainLooper());
     private final NetworkPolicyManager mPolicyManager;
     private final ArrayList<Listener> mListeners = new ArrayList<>();
     private SparseIntArray mUidPolicies = new SparseIntArray();
@@ -195,7 +193,7 @@ public class DataSaverBackend {
 
         @Override
         public void onUidPoliciesChanged(final int uid, final int uidPolicies) {
-            mHandler.post(() -> handleUidPoliciesChanged(uid, uidPolicies));
+            ThreadUtils.postOnMainThread(() -> handleUidPoliciesChanged(uid, uidPolicies));
         }
 
         @Override
@@ -204,7 +202,7 @@ public class DataSaverBackend {
 
         @Override
         public void onRestrictBackgroundChanged(final boolean isDataSaving) throws RemoteException {
-            mHandler.post(() -> handleRestrictBackgroundChanged(isDataSaving));
+            ThreadUtils.postOnMainThread(() -> handleRestrictBackgroundChanged(isDataSaving));
         }
     };
 
diff --git a/src/com/android/settings/enterprise/EnterpriseSetDefaultAppsListPreferenceController.java b/src/com/android/settings/enterprise/EnterpriseSetDefaultAppsListPreferenceController.java
index 03a78ead138..0927299107c 100644
--- a/src/com/android/settings/enterprise/EnterpriseSetDefaultAppsListPreferenceController.java
+++ b/src/com/android/settings/enterprise/EnterpriseSetDefaultAppsListPreferenceController.java
@@ -20,7 +20,6 @@ import android.content.Context;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.UserInfo;
-import android.os.Handler;
 import android.os.UserHandle;
 import android.support.v7.preference.Preference;
 import android.support.v7.preference.PreferenceCategory;
@@ -36,6 +35,7 @@ import com.android.settings.core.PreferenceControllerMixin;
 import com.android.settings.overlay.FeatureFactory;
 import com.android.settings.users.UserFeatureProvider;
 import com.android.settingslib.core.AbstractPreferenceController;
+import com.android.settingslib.utils.ThreadUtils;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -100,7 +100,7 @@ public class EnterpriseSetDefaultAppsListPreferenceController extends
                 userMap.put(typeOfDefault, applicationInfos);
             }
         }
-        new Handler(mContext.getMainLooper()).post(() -> { updateUi(); });
+        ThreadUtils.postOnMainThread(() -> updateUi());
     }
 
     @Override
diff --git a/src/com/android/settings/network/VpnPreferenceController.java b/src/com/android/settings/network/VpnPreferenceController.java
index 763fb725fb6..95513e08624 100644
--- a/src/com/android/settings/network/VpnPreferenceController.java
+++ b/src/com/android/settings/network/VpnPreferenceController.java
@@ -23,8 +23,6 @@ import android.net.IConnectivityManager;
 import android.net.Network;
 import android.net.NetworkCapabilities;
 import android.net.NetworkRequest;
-import android.os.Handler;
-import android.os.Looper;
 import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.os.UserHandle;
@@ -45,6 +43,7 @@ import com.android.settingslib.core.AbstractPreferenceController;
 import com.android.settingslib.core.lifecycle.LifecycleObserver;
 import com.android.settingslib.core.lifecycle.events.OnPause;
 import com.android.settingslib.core.lifecycle.events.OnResume;
+import com.android.settingslib.utils.ThreadUtils;
 
 import java.util.List;
 
@@ -157,7 +156,7 @@ public class VpnPreferenceController extends AbstractPreferenceController
         } else {
             summary = getNameForVpnConfig(vpn, UserHandle.of(uid));
         }
-        new Handler(Looper.getMainLooper()).post(() -> mPreference.setSummary(summary));
+        ThreadUtils.postOnMainThread(() -> mPreference.setSummary(summary));
     }
 
     private String getNameForVpnConfig(VpnConfig cfg, UserHandle user) {
diff --git a/src/com/android/settings/wifi/WifiConfigController.java b/src/com/android/settings/wifi/WifiConfigController.java
index 8ee340aca01..5a10ebf3518 100644
--- a/src/com/android/settings/wifi/WifiConfigController.java
+++ b/src/com/android/settings/wifi/WifiConfigController.java
@@ -61,6 +61,7 @@ import android.widget.TextView;
 import com.android.settings.ProxySelector;
 import com.android.settings.R;
 import com.android.settingslib.Utils;
+import com.android.settingslib.utils.ThreadUtils;
 import com.android.settingslib.wifi.AccessPoint;
 
 import java.net.Inet4Address;
@@ -116,8 +117,6 @@ public class WifiConfigController implements TextWatcher,
     /* Full list of phase2 methods */
     private final ArrayAdapter<String> mPhase2FullAdapter;
 
-    private final Handler mTextViewChangedHandler;
-
     // e.g. AccessPoint.SECURITY_NONE
     private int mAccessPointSecurity;
     private TextView mPasswordView;
@@ -175,7 +174,6 @@ public class WifiConfigController implements TextWatcher,
                 accessPoint.getSecurity();
         mMode = mode;
 
-        mTextViewChangedHandler = new Handler();
         mContext = mConfigUi.getContext();
         final Resources res = mContext.getResources();
 
@@ -1258,12 +1256,10 @@ public class WifiConfigController implements TextWatcher,
 
     @Override
     public void afterTextChanged(Editable s) {
-        mTextViewChangedHandler.post(new Runnable() {
-                public void run() {
-                    showWarningMessagesIfAppropriate();
-                    enableSubmitIfAppropriate();
-                }
-            });
+        ThreadUtils.postOnMainThread(() -> {
+            showWarningMessagesIfAppropriate();
+            enableSubmitIfAppropriate();
+        });
     }
 
     @Override
diff --git a/src/com/android/settings/wifi/WriteWifiConfigToNfcDialog.java b/src/com/android/settings/wifi/WriteWifiConfigToNfcDialog.java
index dfed8018457..dc98e21ce9e 100644
--- a/src/com/android/settings/wifi/WriteWifiConfigToNfcDialog.java
+++ b/src/com/android/settings/wifi/WriteWifiConfigToNfcDialog.java
@@ -63,7 +63,6 @@ class WriteWifiConfigToNfcDialog extends AlertDialog
     private View mView;
     private Button mSubmitButton;
     private Button mCancelButton;
-    private Handler mOnTextChangedHandler;
     private TextView mPasswordView;
     private TextView mLabelView;
     private CheckBox mPasswordCheckBox;
@@ -79,7 +78,6 @@ class WriteWifiConfigToNfcDialog extends AlertDialog
         mContext = context;
         mWakeLock = ((PowerManager) context.getSystemService(Context.POWER_SERVICE))
                 .newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "WriteWifiConfigToNfcDialog:wakeLock");
-        mOnTextChangedHandler = new Handler();
         mSecurity = security;
         mWifiManager = wifiManager;
     }
@@ -90,7 +88,6 @@ class WriteWifiConfigToNfcDialog extends AlertDialog
         mContext = context;
         mWakeLock = ((PowerManager) context.getSystemService(Context.POWER_SERVICE))
                 .newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "WriteWifiConfigToNfcDialog:wakeLock");
-        mOnTextChangedHandler = new Handler();
         mSecurity = savedState.getInt(SECURITY);
         mWifiManager = wifiManager;
     }
@@ -226,12 +223,7 @@ class WriteWifiConfigToNfcDialog extends AlertDialog
 
     @Override
     public void onTextChanged(CharSequence s, int start, int before, int count) {
-        mOnTextChangedHandler.post(new Runnable() {
-            @Override
-            public void run() {
-                enableSubmitIfAppropriate();
-            }
-        });
+        enableSubmitIfAppropriate();
     }
 
     private void enableSubmitIfAppropriate() {