diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardSecurityContainer.java b/packages/SystemUI/src/com/android/keyguard/KeyguardSecurityContainer.java
index ca4d73b6de5df..840e8c8cba585 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardSecurityContainer.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardSecurityContainer.java
@@ -42,7 +42,6 @@ import android.view.WindowInsetsAnimation;
 import android.view.WindowManager;
 import android.widget.FrameLayout;
 
-import androidx.annotation.Nullable;
 import androidx.annotation.VisibleForTesting;
 import androidx.dynamicanimation.animation.DynamicAnimation;
 import androidx.dynamicanimation.animation.SpringAnimation;
@@ -104,7 +103,6 @@ public class KeyguardSecurityContainer extends FrameLayout {
 
     private boolean mIsSecurityViewLeftAligned = true;
     private boolean mOneHandedMode = false;
-    private SecurityMode mSecurityMode = SecurityMode.Invalid;
     private ViewPropertyAnimator mRunningOneHandedAnimator;
 
     private final WindowInsetsAnimation.Callback mWindowInsetsAnimationCallback =
@@ -248,66 +246,47 @@ public class KeyguardSecurityContainer extends FrameLayout {
     }
 
     void onResume(SecurityMode securityMode, boolean faceAuthEnabled) {
-        mSecurityMode = securityMode;
         mSecurityViewFlipper.setWindowInsetsAnimationCallback(mWindowInsetsAnimationCallback);
         updateBiometricRetry(securityMode, faceAuthEnabled);
-
-        updateLayoutForSecurityMode(securityMode);
     }
 
-    void updateLayoutForSecurityMode(SecurityMode securityMode) {
-        mSecurityMode = securityMode;
-        mOneHandedMode = canUseOneHandedBouncer();
-
-        if (mOneHandedMode) {
-            mIsSecurityViewLeftAligned = isOneHandedKeyguardLeftAligned(mContext);
-        }
-
+    /**
+     * Sets whether this security container is in one handed mode. If so, it will measure its
+     * child SecurityViewFlipper in one half of the screen, and move it when tapping on the opposite
+     * side of the screen.
+     */
+    public void setOneHandedMode(boolean oneHandedMode) {
+        mOneHandedMode = oneHandedMode;
         updateSecurityViewGravity();
         updateSecurityViewLocation(false);
     }
 
-    /** Update keyguard position based on a tapped X coordinate. */
-    public void updateKeyguardPosition(float x) {
-        if (mOneHandedMode) {
-            moveBouncerForXCoordinate(x, /* animate= */false);
-        }
+    /** Returns whether this security container is in one-handed mode. */
+    public boolean isOneHandedMode() {
+        return mOneHandedMode;
     }
 
-    /** Return whether the one-handed keyguard should be enabled. */
-    private boolean canUseOneHandedBouncer() {
-        // Is it enabled?
-        if (!getResources().getBoolean(
-                com.android.internal.R.bool.config_enableDynamicKeyguardPositioning)) {
-            return false;
-        }
-
-        if (!KeyguardSecurityModel.isSecurityViewOneHanded(mSecurityMode)) {
-            return false;
-        }
-
-        return getResources().getBoolean(R.bool.can_use_one_handed_bouncer);
+    /**
+     * When in one-handed mode, sets if the inner SecurityViewFlipper should be aligned to the
+     * left-hand side of the screen or not, and whether to animate when moving between the two.
+     */
+    public void setOneHandedModeLeftAligned(boolean leftAligned, boolean animate) {
+        mIsSecurityViewLeftAligned = leftAligned;
+        updateSecurityViewLocation(animate);
     }
 
-    /** Read whether the one-handed keyguard should be on the left/right from settings. */
-    private boolean isOneHandedKeyguardLeftAligned(Context context) {
-        try {
-            return Settings.Global.getInt(context.getContentResolver(),
-                    Settings.Global.ONE_HANDED_KEYGUARD_SIDE)
-                    == Settings.Global.ONE_HANDED_KEYGUARD_SIDE_LEFT;
-        } catch (Settings.SettingNotFoundException ex) {
-            return true;
-        }
+    /** Returns whether the inner SecurityViewFlipper is left-aligned when in one-handed mode. */
+    public boolean isOneHandedModeLeftAligned() {
+        return mIsSecurityViewLeftAligned;
     }
 
     private void updateSecurityViewGravity() {
-        View securityView = findKeyguardSecurityView();
-
-        if (securityView == null) {
+        if (mSecurityViewFlipper == null) {
             return;
         }
 
-        FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) securityView.getLayoutParams();
+        FrameLayout.LayoutParams lp =
+                (FrameLayout.LayoutParams) mSecurityViewFlipper.getLayoutParams();
 
         if (mOneHandedMode) {
             lp.gravity = Gravity.LEFT | Gravity.BOTTOM;
@@ -315,7 +294,7 @@ public class KeyguardSecurityContainer extends FrameLayout {
             lp.gravity = Gravity.CENTER_HORIZONTAL;
         }
 
-        securityView.setLayoutParams(lp);
+        mSecurityViewFlipper.setLayoutParams(lp);
     }
 
     /**
@@ -324,14 +303,12 @@ public class KeyguardSecurityContainer extends FrameLayout {
      * by the security view .
      */
     private void updateSecurityViewLocation(boolean animate) {
-        View securityView = findKeyguardSecurityView();
-
-        if (securityView == null) {
+        if (mSecurityViewFlipper == null) {
             return;
         }
 
         if (!mOneHandedMode) {
-            securityView.setTranslationX(0);
+            mSecurityViewFlipper.setTranslationX(0);
             return;
         }
 
@@ -343,7 +320,8 @@ public class KeyguardSecurityContainer extends FrameLayout {
         int targetTranslation = mIsSecurityViewLeftAligned ? 0 : (int) (getMeasuredWidth() / 2f);
 
         if (animate) {
-            mRunningOneHandedAnimator = securityView.animate().translationX(targetTranslation);
+            mRunningOneHandedAnimator =
+                    mSecurityViewFlipper.animate().translationX(targetTranslation);
             mRunningOneHandedAnimator.setInterpolator(Interpolators.FAST_OUT_SLOW_IN);
             mRunningOneHandedAnimator.setListener(new AnimatorListenerAdapter() {
                 @Override
@@ -355,27 +333,10 @@ public class KeyguardSecurityContainer extends FrameLayout {
             mRunningOneHandedAnimator.setDuration(StackStateAnimator.ANIMATION_DURATION_STANDARD);
             mRunningOneHandedAnimator.start();
         } else {
-            securityView.setTranslationX(targetTranslation);
+            mSecurityViewFlipper.setTranslationX(targetTranslation);
         }
     }
 
-    @Nullable
-    private KeyguardSecurityViewFlipper findKeyguardSecurityView() {
-        for (int i = 0; i < getChildCount(); i++) {
-            View child = getChildAt(i);
-
-            if (isKeyguardSecurityView(child)) {
-                return (KeyguardSecurityViewFlipper) child;
-            }
-        }
-
-        return null;
-    }
-
-    private boolean isKeyguardSecurityView(View view) {
-        return view instanceof KeyguardSecurityViewFlipper;
-    }
-
     public void onPause() {
         if (mAlertDialog != null) {
             mAlertDialog.dismiss();
@@ -635,7 +596,7 @@ public class KeyguardSecurityContainer extends FrameLayout {
         for (int i = 0; i < getChildCount(); i++) {
             final View view = getChildAt(i);
             if (view.getVisibility() != GONE) {
-                if (mOneHandedMode && isKeyguardSecurityView(view)) {
+                if (mOneHandedMode && view == mSecurityViewFlipper) {
                     measureChildWithMargins(view, halfWidthMeasureSpec, 0,
                             heightMeasureSpec, 0);
                 } else {
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardSecurityContainerController.java b/packages/SystemUI/src/com/android/keyguard/KeyguardSecurityContainerController.java
index 4827cab3b5c01..6826e7b8ac94f 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardSecurityContainerController.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardSecurityContainerController.java
@@ -32,6 +32,7 @@ import android.content.res.ColorStateList;
 import android.content.res.Configuration;
 import android.metrics.LogMaker;
 import android.os.UserHandle;
+import android.provider.Settings;
 import android.util.Log;
 import android.util.Slog;
 import android.view.MotionEvent;
@@ -49,6 +50,8 @@ import com.android.keyguard.KeyguardSecurityModel.SecurityMode;
 import com.android.keyguard.dagger.KeyguardBouncerScope;
 import com.android.settingslib.utils.ThreadUtils;
 import com.android.systemui.Gefingerpoken;
+import com.android.systemui.R;
+import com.android.systemui.classifier.FalsingCollector;
 import com.android.systemui.shared.system.SysUiStatsLog;
 import com.android.systemui.statusbar.policy.ConfigurationController;
 import com.android.systemui.statusbar.policy.KeyguardStateController;
@@ -74,12 +77,14 @@ public class KeyguardSecurityContainerController extends ViewController<Keyguard
     private final KeyguardSecurityViewFlipperController mSecurityViewFlipperController;
     private final SecurityCallback mSecurityCallback;
     private final ConfigurationController mConfigurationController;
+    private final FalsingCollector mFalsingCollector;
 
     private int mLastOrientation = Configuration.ORIENTATION_UNDEFINED;
 
     private SecurityMode mCurrentSecurityMode = SecurityMode.Invalid;
 
-    private final Gefingerpoken mGlobalTouchListener = new Gefingerpoken() {
+    @VisibleForTesting
+    final Gefingerpoken mGlobalTouchListener = new Gefingerpoken() {
         private MotionEvent mTouchDown;
         @Override
         public boolean onInterceptTouchEvent(MotionEvent ev) {
@@ -91,6 +96,17 @@ public class KeyguardSecurityContainerController extends ViewController<Keyguard
             // Do just a bit of our own falsing. People should only be tapping on the input, not
             // swiping.
             if (ev.getActionMasked() == MotionEvent.ACTION_DOWN) {
+                // If we're in one handed mode, the user can tap on the opposite side of the screen
+                // to move the bouncer across. In that case, inhibit the falsing (otherwise the taps
+                // to move the bouncer to each screen side can end up closing it instead).
+                if (mView.isOneHandedMode()) {
+                    if ((mView.isOneHandedModeLeftAligned() && ev.getX() > mView.getWidth() / 2f)
+                            || (!mView.isOneHandedModeLeftAligned()
+                            && ev.getX() <= mView.getWidth() / 2f)) {
+                        mFalsingCollector.avoidGesture();
+                    }
+                }
+
                 if (mTouchDown != null) {
                     mTouchDown.recycle();
                     mTouchDown = null;
@@ -202,7 +218,8 @@ public class KeyguardSecurityContainerController extends ViewController<Keyguard
             KeyguardStateController keyguardStateController,
             SecurityCallback securityCallback,
             KeyguardSecurityViewFlipperController securityViewFlipperController,
-            ConfigurationController configurationController) {
+            ConfigurationController configurationController,
+            FalsingCollector falsingCollector) {
         super(view);
         mLockPatternUtils = lockPatternUtils;
         mUpdateMonitor = keyguardUpdateMonitor;
@@ -216,6 +233,7 @@ public class KeyguardSecurityContainerController extends ViewController<Keyguard
                 mKeyguardSecurityCallback);
         mConfigurationController = configurationController;
         mLastOrientation = getResources().getConfiguration().orientation;
+        mFalsingCollector = falsingCollector;
     }
 
     @Override
@@ -440,13 +458,49 @@ public class KeyguardSecurityContainerController extends ViewController<Keyguard
         if (newView != null) {
             newView.onResume(KeyguardSecurityView.VIEW_REVEALED);
             mSecurityViewFlipperController.show(newView);
-            mView.updateLayoutForSecurityMode(securityMode);
+            configureOneHandedMode();
         }
 
         mSecurityCallback.onSecurityModeChanged(
                 securityMode, newView != null && newView.needsInput());
     }
 
+    /** Read whether the one-handed keyguard should be on the left/right from settings. */
+    private boolean isOneHandedKeyguardLeftAligned() {
+        try {
+            return Settings.Global.getInt(mView.getContext().getContentResolver(),
+                    Settings.Global.ONE_HANDED_KEYGUARD_SIDE)
+                    == Settings.Global.ONE_HANDED_KEYGUARD_SIDE_LEFT;
+        } catch (Settings.SettingNotFoundException ex) {
+            return true;
+        }
+    }
+
+    private boolean canUseOneHandedBouncer() {
+        // Is it enabled?
+        if (!getResources().getBoolean(
+                com.android.internal.R.bool.config_enableDynamicKeyguardPositioning)) {
+            return false;
+        }
+
+        if (!KeyguardSecurityModel.isSecurityViewOneHanded(mCurrentSecurityMode)) {
+            return false;
+        }
+
+        return getResources().getBoolean(R.bool.can_use_one_handed_bouncer);
+    }
+
+    private void configureOneHandedMode() {
+        boolean oneHandedMode = canUseOneHandedBouncer();
+
+        mView.setOneHandedMode(oneHandedMode);
+
+        if (oneHandedMode) {
+            mView.setOneHandedModeLeftAligned(
+                    isOneHandedKeyguardLeftAligned(), /* animate= */false);
+        }
+    }
+
     public void reportFailedUnlockAttempt(int userId, int timeoutMs) {
         // +1 for this time
         final int failedAttempts = mLockPatternUtils.getCurrentFailedPasswordAttempts(userId) + 1;
@@ -511,13 +565,15 @@ public class KeyguardSecurityContainerController extends ViewController<Keyguard
         int newOrientation = getResources().getConfiguration().orientation;
         if (newOrientation != mLastOrientation) {
             mLastOrientation = newOrientation;
-            mView.updateLayoutForSecurityMode(mCurrentSecurityMode);
+            configureOneHandedMode();
         }
     }
 
     /** Update keyguard position based on a tapped X coordinate. */
     public void updateKeyguardPosition(float x) {
-        mView.updateKeyguardPosition(x);
+        if (mView.isOneHandedMode()) {
+            mView.setOneHandedModeLeftAligned(x <= mView.getWidth() / 2f, false);
+        }
     }
 
     static class Factory {
@@ -533,6 +589,7 @@ public class KeyguardSecurityContainerController extends ViewController<Keyguard
         private final KeyguardStateController mKeyguardStateController;
         private final KeyguardSecurityViewFlipperController mSecurityViewFlipperController;
         private final ConfigurationController mConfigurationController;
+        private final FalsingCollector mFalsingCollector;
 
         @Inject
         Factory(KeyguardSecurityContainer view,
@@ -545,7 +602,8 @@ public class KeyguardSecurityContainerController extends ViewController<Keyguard
                 UiEventLogger uiEventLogger,
                 KeyguardStateController keyguardStateController,
                 KeyguardSecurityViewFlipperController securityViewFlipperController,
-                ConfigurationController configurationController) {
+                ConfigurationController configurationController,
+                FalsingCollector falsingCollector) {
             mView = view;
             mAdminSecondaryLockScreenControllerFactory = adminSecondaryLockScreenControllerFactory;
             mLockPatternUtils = lockPatternUtils;
@@ -556,6 +614,7 @@ public class KeyguardSecurityContainerController extends ViewController<Keyguard
             mKeyguardStateController = keyguardStateController;
             mSecurityViewFlipperController = securityViewFlipperController;
             mConfigurationController = configurationController;
+            mFalsingCollector = falsingCollector;
         }
 
         public KeyguardSecurityContainerController create(
@@ -564,7 +623,7 @@ public class KeyguardSecurityContainerController extends ViewController<Keyguard
                     mAdminSecondaryLockScreenControllerFactory, mLockPatternUtils,
                     mKeyguardUpdateMonitor, mKeyguardSecurityModel, mMetricsLogger, mUiEventLogger,
                     mKeyguardStateController, securityCallback, mSecurityViewFlipperController,
-                    mConfigurationController);
+                    mConfigurationController, mFalsingCollector);
         }
 
     }
diff --git a/packages/SystemUI/tests/src/com/android/keyguard/KeyguardSecurityContainerControllerTest.java b/packages/SystemUI/tests/src/com/android/keyguard/KeyguardSecurityContainerControllerTest.java
index ca857c5dd05b5..64bdc2e9dc5d1 100644
--- a/packages/SystemUI/tests/src/com/android/keyguard/KeyguardSecurityContainerControllerTest.java
+++ b/packages/SystemUI/tests/src/com/android/keyguard/KeyguardSecurityContainerControllerTest.java
@@ -19,11 +19,13 @@ package com.android.keyguard;
 import static android.view.WindowInsets.Type.ime;
 
 import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyBoolean;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.anyLong;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.reset;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
@@ -33,6 +35,7 @@ import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.testing.AndroidTestingRunner;
 import android.testing.TestableLooper;
+import android.view.MotionEvent;
 import android.view.WindowInsetsController;
 
 import androidx.test.filters.SmallTest;
@@ -43,6 +46,7 @@ import com.android.internal.widget.LockPatternUtils;
 import com.android.keyguard.KeyguardSecurityModel.SecurityMode;
 import com.android.systemui.R;
 import com.android.systemui.SysuiTestCase;
+import com.android.systemui.classifier.FalsingCollector;
 import com.android.systemui.statusbar.policy.ConfigurationController;
 import com.android.systemui.statusbar.policy.KeyguardStateController;
 
@@ -58,6 +62,7 @@ import org.mockito.junit.MockitoRule;
 @RunWith(AndroidTestingRunner.class)
 @TestableLooper.RunWithLooper()
 public class KeyguardSecurityContainerControllerTest extends SysuiTestCase {
+    private static final int VIEW_WIDTH = 1600;
 
     @Rule
     public MockitoRule mRule = MockitoJUnit.rule();
@@ -100,6 +105,8 @@ public class KeyguardSecurityContainerControllerTest extends SysuiTestCase {
     private EmergencyButtonController mEmergencyButtonController;
     @Mock
     private Resources mResources;
+    @Mock
+    private FalsingCollector mFalsingCollector;
     private Configuration mConfiguration;
 
     private KeyguardSecurityContainerController mKeyguardSecurityContainerController;
@@ -112,7 +119,9 @@ public class KeyguardSecurityContainerControllerTest extends SysuiTestCase {
         mConfiguration.setToDefaults(); // Defaults to ORIENTATION_UNDEFINED.
 
         when(mResources.getConfiguration()).thenReturn(mConfiguration);
+        when(mView.getContext()).thenReturn(mContext);
         when(mView.getResources()).thenReturn(mResources);
+        when(mView.getWidth()).thenReturn(VIEW_WIDTH);
         when(mAdminSecondaryLockScreenControllerFactory.create(any(KeyguardSecurityCallback.class)))
                 .thenReturn(mAdminSecondaryLockScreenController);
         when(mSecurityViewFlipper.getWindowInsetsController()).thenReturn(mWindowInsetsController);
@@ -131,7 +140,7 @@ public class KeyguardSecurityContainerControllerTest extends SysuiTestCase {
                 mView, mAdminSecondaryLockScreenControllerFactory, mLockPatternUtils,
                 mKeyguardUpdateMonitor, mKeyguardSecurityModel, mMetricsLogger, mUiEventLogger,
                 mKeyguardStateController, mKeyguardSecurityViewFlipperController,
-                mConfigurationController)
+                mConfigurationController, mFalsingCollector)
                 .create(mSecurityCallback);
     }
 
@@ -169,18 +178,156 @@ public class KeyguardSecurityContainerControllerTest extends SysuiTestCase {
     public void onResourcesUpdate_callsThroughOnRotationChange() {
         // Rotation is the same, shouldn't cause an update
         mKeyguardSecurityContainerController.updateResources();
-        verify(mView, times(0)).updateLayoutForSecurityMode(any());
+        verify(mView, times(0)).setOneHandedMode(anyBoolean());
 
         // Update rotation. Should trigger update
         mConfiguration.orientation = Configuration.ORIENTATION_LANDSCAPE;
 
         mKeyguardSecurityContainerController.updateResources();
-        verify(mView, times(1)).updateLayoutForSecurityMode(any());
+        verify(mView, times(1)).setOneHandedMode(anyBoolean());
     }
 
     @Test
-    public void updateKeyguardPosition_callsThroughToView() {
+    public void updateKeyguardPosition_callsThroughToViewInOneHandedMode() {
+        when(mView.isOneHandedMode()).thenReturn(true);
+        mKeyguardSecurityContainerController.updateKeyguardPosition(VIEW_WIDTH / 3f);
+        verify(mView).setOneHandedModeLeftAligned(true, false);
+
+        mKeyguardSecurityContainerController.updateKeyguardPosition((VIEW_WIDTH / 3f) * 2);
+        verify(mView).setOneHandedModeLeftAligned(false, false);
+    }
+
+    @Test
+    public void updateKeyguardPosition_ignoredInTwoHandedMode() {
+        when(mView.isOneHandedMode()).thenReturn(false);
         mKeyguardSecurityContainerController.updateKeyguardPosition(1.0f);
-        verify(mView).updateKeyguardPosition(1.0f);
+        verify(mView, never()).setOneHandedModeLeftAligned(anyBoolean(), anyBoolean());
+    }
+
+    private void touchDownLeftSide() {
+        mKeyguardSecurityContainerController.mGlobalTouchListener.onTouchEvent(
+                MotionEvent.obtain(
+                        /* downTime= */0,
+                        /* eventTime= */0,
+                        MotionEvent.ACTION_DOWN,
+                        /* x= */VIEW_WIDTH / 3f,
+                        /* y= */0,
+                        /* metaState= */0));
+    }
+
+    private void touchDownRightSide() {
+        mKeyguardSecurityContainerController.mGlobalTouchListener.onTouchEvent(
+                MotionEvent.obtain(
+                        /* downTime= */0,
+                        /* eventTime= */0,
+                        MotionEvent.ACTION_DOWN,
+                        /* x= */(VIEW_WIDTH / 3f) * 2,
+                        /* y= */0,
+                        /* metaState= */0));
+    }
+
+    @Test
+    public void onInterceptTap_inhibitsFalsingInOneHandedMode() {
+        when(mView.isOneHandedMode()).thenReturn(true);
+        when(mView.isOneHandedModeLeftAligned()).thenReturn(true);
+
+        touchDownLeftSide();
+        verify(mFalsingCollector, never()).avoidGesture();
+
+        // Now on the right.
+        touchDownRightSide();
+        verify(mFalsingCollector).avoidGesture();
+
+        // Move and re-test
+        reset(mFalsingCollector);
+        when(mView.isOneHandedModeLeftAligned()).thenReturn(false);
+
+        // On the right...
+        touchDownRightSide();
+        verify(mFalsingCollector, never()).avoidGesture();
+
+        touchDownLeftSide();
+        verify(mFalsingCollector).avoidGesture();
+    }
+
+    @Test
+    public void showSecurityScreen_oneHandedMode_bothFlagsDisabled_noOneHandedMode() {
+        setUpKeyguardFlags(
+                /* deviceConfigCanUseOneHandedKeyguard= */false,
+                /* sysuiResourceCanUseOneHandedKeyguard= */false);
+
+        when(mKeyguardSecurityViewFlipperController.getSecurityView(
+                eq(SecurityMode.Pattern), any(KeyguardSecurityCallback.class)))
+                .thenReturn((KeyguardInputViewController) mKeyguardPasswordViewController);
+
+        mKeyguardSecurityContainerController.showSecurityScreen(SecurityMode.Pattern);
+        verify(mView).setOneHandedMode(false);
+    }
+
+    @Test
+    public void showSecurityScreen_oneHandedMode_deviceFlagDisabled_noOneHandedMode() {
+        setUpKeyguardFlags(
+                /* deviceConfigCanUseOneHandedKeyguard= */false,
+                /* sysuiResourceCanUseOneHandedKeyguard= */true);
+
+        when(mKeyguardSecurityViewFlipperController.getSecurityView(
+                eq(SecurityMode.Pattern), any(KeyguardSecurityCallback.class)))
+                .thenReturn((KeyguardInputViewController) mKeyguardPasswordViewController);
+
+        mKeyguardSecurityContainerController.showSecurityScreen(SecurityMode.Pattern);
+        verify(mView).setOneHandedMode(false);
+    }
+
+    @Test
+    public void showSecurityScreen_oneHandedMode_sysUiFlagDisabled_noOneHandedMode() {
+        setUpKeyguardFlags(
+                /* deviceConfigCanUseOneHandedKeyguard= */true,
+                /* sysuiResourceCanUseOneHandedKeyguard= */false);
+
+        when(mKeyguardSecurityViewFlipperController.getSecurityView(
+                eq(SecurityMode.Pattern), any(KeyguardSecurityCallback.class)))
+                .thenReturn((KeyguardInputViewController) mKeyguardPasswordViewController);
+
+        mKeyguardSecurityContainerController.showSecurityScreen(SecurityMode.Pattern);
+        verify(mView).setOneHandedMode(false);
+    }
+
+    @Test
+    public void showSecurityScreen_oneHandedMode_bothFlagsEnabled_oneHandedMode() {
+        setUpKeyguardFlags(
+                /* deviceConfigCanUseOneHandedKeyguard= */true,
+                /* sysuiResourceCanUseOneHandedKeyguard= */true);
+
+        when(mKeyguardSecurityViewFlipperController.getSecurityView(
+                eq(SecurityMode.Pattern), any(KeyguardSecurityCallback.class)))
+                .thenReturn((KeyguardInputViewController) mKeyguardPasswordViewController);
+
+        mKeyguardSecurityContainerController.showSecurityScreen(SecurityMode.Pattern);
+        verify(mView).setOneHandedMode(true);
+    }
+
+    @Test
+    public void showSecurityScreen_twoHandedMode_bothFlagsEnabled_noOneHandedMode() {
+        setUpKeyguardFlags(
+                /* deviceConfigCanUseOneHandedKeyguard= */true,
+                /* sysuiResourceCanUseOneHandedKeyguard= */true);
+
+        when(mKeyguardSecurityViewFlipperController.getSecurityView(
+                eq(SecurityMode.Password), any(KeyguardSecurityCallback.class)))
+                .thenReturn((KeyguardInputViewController) mKeyguardPasswordViewController);
+
+        mKeyguardSecurityContainerController.showSecurityScreen(SecurityMode.Password);
+        verify(mView).setOneHandedMode(false);
+    }
+
+    private void setUpKeyguardFlags(
+            boolean deviceConfigCanUseOneHandedKeyguard,
+            boolean sysuiResourceCanUseOneHandedKeyguard) {
+        when(mResources.getBoolean(
+                com.android.internal.R.bool.config_enableDynamicKeyguardPositioning))
+                .thenReturn(deviceConfigCanUseOneHandedKeyguard);
+        when(mResources.getBoolean(
+                R.bool.can_use_one_handed_bouncer))
+                .thenReturn(sysuiResourceCanUseOneHandedKeyguard);
     }
 }
diff --git a/packages/SystemUI/tests/src/com/android/keyguard/KeyguardSecurityContainerTest.java b/packages/SystemUI/tests/src/com/android/keyguard/KeyguardSecurityContainerTest.java
index f5916e748f04e..02763235a8caa 100644
--- a/packages/SystemUI/tests/src/com/android/keyguard/KeyguardSecurityContainerTest.java
+++ b/packages/SystemUI/tests/src/com/android/keyguard/KeyguardSecurityContainerTest.java
@@ -28,7 +28,6 @@ import static org.mockito.Mockito.when;
 import android.graphics.Insets;
 import android.testing.AndroidTestingRunner;
 import android.testing.TestableLooper;
-import android.testing.TestableResources;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.WindowInsets;
@@ -37,8 +36,6 @@ import android.widget.FrameLayout;
 
 import androidx.test.filters.SmallTest;
 
-import com.android.keyguard.KeyguardSecurityModel.SecurityMode;
-import com.android.systemui.R;
 import com.android.systemui.SysuiTestCase;
 
 import org.junit.Before;
@@ -57,11 +54,6 @@ public class KeyguardSecurityContainerTest extends SysuiTestCase {
     private static final int FAKE_MEASURE_SPEC =
             View.MeasureSpec.makeMeasureSpec(SCREEN_WIDTH, View.MeasureSpec.EXACTLY);
 
-    private static final SecurityMode ONE_HANDED_SECURITY_MODE = SecurityMode.PIN;
-    private static final SecurityMode TWO_HANDED_SECURITY_MODE = SecurityMode.Password;
-
-
-
     @Rule
     public MockitoRule mRule = MockitoJUnit.rule();
 
@@ -90,45 +82,8 @@ public class KeyguardSecurityContainerTest extends SysuiTestCase {
     }
 
     @Test
-    public void onMeasure_usesFullWidthWithoutOneHandedMode() {
-        setUpKeyguard(
-                /* deviceConfigCanUseOneHandedKeyguard= */false,
-                /* sysuiResourceCanUseOneHandedKeyguard= */ false,
-                ONE_HANDED_SECURITY_MODE);
-
-        mKeyguardSecurityContainer.measure(FAKE_MEASURE_SPEC, FAKE_MEASURE_SPEC);
-
-        verify(mSecurityViewFlipper).measure(FAKE_MEASURE_SPEC, FAKE_MEASURE_SPEC);
-    }
-
-    @Test
-    public void onMeasure_usesFullWidthWithDeviceFlagDisabled() {
-        setUpKeyguard(
-                /* deviceConfigCanUseOneHandedKeyguard= */false,
-                /* sysuiResourceCanUseOneHandedKeyguard= */ true,
-                ONE_HANDED_SECURITY_MODE);
-
-        mKeyguardSecurityContainer.measure(FAKE_MEASURE_SPEC, FAKE_MEASURE_SPEC);
-        verify(mSecurityViewFlipper).measure(FAKE_MEASURE_SPEC, FAKE_MEASURE_SPEC);
-    }
-
-    @Test
-    public void onMeasure_usesFullWidthWithSysUIFlagDisabled() {
-        setUpKeyguard(
-                /* deviceConfigCanUseOneHandedKeyguard= */true,
-                /* sysuiResourceCanUseOneHandedKeyguard= */ false,
-                ONE_HANDED_SECURITY_MODE);
-
-        mKeyguardSecurityContainer.measure(FAKE_MEASURE_SPEC, FAKE_MEASURE_SPEC);
-        verify(mSecurityViewFlipper).measure(FAKE_MEASURE_SPEC, FAKE_MEASURE_SPEC);
-    }
-
-    @Test
-    public void onMeasure_usesHalfWidthWithFlagsEnabled() {
-        setUpKeyguard(
-                /* deviceConfigCanUseOneHandedKeyguard= */true,
-                /* sysuiResourceCanUseOneHandedKeyguard= */ true,
-                ONE_HANDED_SECURITY_MODE);
+    public void onMeasure_usesHalfWidthWithOneHandedModeEnabled() {
+        mKeyguardSecurityContainer.setOneHandedMode(/* oneHandedMode= */true);
 
         int halfWidthMeasureSpec =
                 View.MeasureSpec.makeMeasureSpec(SCREEN_WIDTH / 2, View.MeasureSpec.EXACTLY);
@@ -138,11 +93,8 @@ public class KeyguardSecurityContainerTest extends SysuiTestCase {
     }
 
     @Test
-    public void onMeasure_usesFullWidthForFullScreenIme() {
-        setUpKeyguard(
-                /* deviceConfigCanUseOneHandedKeyguard= */true,
-                /* sysuiResourceCanUseOneHandedKeyguard= */ true,
-                TWO_HANDED_SECURITY_MODE);
+    public void onMeasure_usesFullWidthWithOneHandedModeDisabled() {
+        mKeyguardSecurityContainer.setOneHandedMode(/* oneHandedMode= */false);
 
         mKeyguardSecurityContainer.measure(FAKE_MEASURE_SPEC, FAKE_MEASURE_SPEC);
         verify(mSecurityViewFlipper).measure(FAKE_MEASURE_SPEC, FAKE_MEASURE_SPEC);
@@ -153,10 +105,7 @@ public class KeyguardSecurityContainerTest extends SysuiTestCase {
         int imeInsetAmount = 100;
         int systemBarInsetAmount = 10;
 
-        setUpKeyguard(
-                /* deviceConfigCanUseOneHandedKeyguard= */false,
-                /* sysuiResourceCanUseOneHandedKeyguard= */ false,
-                ONE_HANDED_SECURITY_MODE);
+        mKeyguardSecurityContainer.setOneHandedMode(/* oneHandedMode= */false);
 
         Insets imeInset = Insets.of(0, 0, 0, imeInsetAmount);
         Insets systemBarInset = Insets.of(0, 0, 0, systemBarInsetAmount);
@@ -180,10 +129,7 @@ public class KeyguardSecurityContainerTest extends SysuiTestCase {
         int imeInsetAmount = 0;
         int systemBarInsetAmount = 10;
 
-        setUpKeyguard(
-                /* deviceConfigCanUseOneHandedKeyguard= */false,
-                /* sysuiResourceCanUseOneHandedKeyguard= */ false,
-                ONE_HANDED_SECURITY_MODE);
+        mKeyguardSecurityContainer.setOneHandedMode(/* oneHandedMode= */false);
 
         Insets imeInset = Insets.of(0, 0, 0, imeInsetAmount);
         Insets systemBarInset = Insets.of(0, 0, 0, systemBarInsetAmount);
@@ -201,56 +147,41 @@ public class KeyguardSecurityContainerTest extends SysuiTestCase {
         verify(mSecurityViewFlipper).measure(FAKE_MEASURE_SPEC, expectedHeightMeasureSpec);
     }
 
-    private void setupForUpdateKeyguardPosition(SecurityMode securityMode) {
-        setUpKeyguard(
-                /* deviceConfigCanUseOneHandedKeyguard= */true,
-                /* sysuiResourceCanUseOneHandedKeyguard= */ true,
-                securityMode);
+    private void setupForUpdateKeyguardPosition(boolean oneHandedMode) {
+        mKeyguardSecurityContainer.setOneHandedMode(oneHandedMode);
+        mKeyguardSecurityContainer.setOneHandedModeLeftAligned(true, false);
 
         mKeyguardSecurityContainer.measure(FAKE_MEASURE_SPEC, FAKE_MEASURE_SPEC);
         mKeyguardSecurityContainer.layout(0, 0, SCREEN_WIDTH, SCREEN_WIDTH);
 
-        // Start off left-aligned. This should happen anyway, but just do this to ensure
-        // definitely move to the left.
-        mKeyguardSecurityContainer.updateKeyguardPosition(0.0f);
-
         // Clear any interactions with the mock so we know the interactions definitely come from the
         // below testing.
         reset(mSecurityViewFlipper);
     }
 
     @Test
-    public void updateKeyguardPosition_movesKeyguard() {
-        setupForUpdateKeyguardPosition(ONE_HANDED_SECURITY_MODE);
+    public void setIsLeftAligned_movesKeyguard() {
+        setupForUpdateKeyguardPosition(/* oneHandedMode= */ true);
 
-        mKeyguardSecurityContainer.updateKeyguardPosition((SCREEN_WIDTH / 4f) * 3f);
+        mKeyguardSecurityContainer.setOneHandedModeLeftAligned(
+                /* leftAligned= */false, /* animate= */false);
         verify(mSecurityViewFlipper).setTranslationX(SCREEN_WIDTH / 2.0f);
 
-        mKeyguardSecurityContainer.updateKeyguardPosition(0.0f);
+        mKeyguardSecurityContainer.setOneHandedModeLeftAligned(
+                /* leftAligned= */true, /* animate= */false);
         verify(mSecurityViewFlipper).setTranslationX(0.0f);
     }
 
     @Test
-    public void updateKeyguardPosition_doesntMoveTwoHandedKeyguard() {
-        setupForUpdateKeyguardPosition(TWO_HANDED_SECURITY_MODE);
+    public void setIsLeftAligned_doesntMoveTwoHandedKeyguard() {
+        setupForUpdateKeyguardPosition(/* oneHandedMode= */ false);
 
-        mKeyguardSecurityContainer.updateKeyguardPosition((SCREEN_WIDTH / 4f) * 3f);
+        mKeyguardSecurityContainer.setOneHandedModeLeftAligned(
+                /* leftAligned= */false, /* animate= */false);
         verify(mSecurityViewFlipper, never()).setTranslationX(anyInt());
 
-        mKeyguardSecurityContainer.updateKeyguardPosition(0.0f);
+        mKeyguardSecurityContainer.setOneHandedModeLeftAligned(
+                /* leftAligned= */true, /* animate= */false);
         verify(mSecurityViewFlipper, never()).setTranslationX(anyInt());
     }
-
-    private void setUpKeyguard(
-            boolean deviceConfigCanUseOneHandedKeyguard,
-            boolean sysuiResourceCanUseOneHandedKeyguard,
-            SecurityMode securityMode) {
-        TestableResources testableResources = mContext.getOrCreateTestableResources();
-        testableResources.addOverride(
-                com.android.internal.R.bool.config_enableDynamicKeyguardPositioning,
-                deviceConfigCanUseOneHandedKeyguard);
-        testableResources.addOverride(R.bool.can_use_one_handed_bouncer,
-                sysuiResourceCanUseOneHandedKeyguard);
-        mKeyguardSecurityContainer.updateLayoutForSecurityMode(securityMode);
-    }
 }