diff --git a/packages/SystemUI/res-keyguard/layout/keyguard_pattern_view.xml b/packages/SystemUI/res-keyguard/layout/keyguard_pattern_view.xml
index ce63082868bba..f613a195ea67d 100644
--- a/packages/SystemUI/res-keyguard/layout/keyguard_pattern_view.xml
+++ b/packages/SystemUI/res-keyguard/layout/keyguard_pattern_view.xml
@@ -27,49 +27,44 @@
     android:orientation="vertical"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:clipChildren="false"
-    android:clipToPadding="false"
     androidprv:layout_maxWidth="@dimen/keyguard_security_width"
-    androidprv:layout_maxHeight="@dimen/keyguard_security_height"
-    android:gravity="center_horizontal">
+    android:clipChildren="false"
+    android:clipToPadding="false">
 
-    <FrameLayout
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/pattern_container"
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:clipChildren="false"
-        android:clipToPadding="false">
-
-        <LinearLayout
-            android:id="@+id/pattern_container"
-            android:layout_height="wrap_content"
+        android:layout_height="0dp"
+        android:layout_marginBottom="8dp"
+        android:layout_weight="1"
+        android:layoutDirection="ltr">
+        <androidx.constraintlayout.widget.Guideline
+            android:id="@+id/pattern_top_guideline"
             android:layout_width="wrap_content"
-            android:orientation="vertical"
-            android:layout_gravity="center_horizontal|bottom"
-            android:clipChildren="false"
-            android:clipToPadding="false">
+            android:layout_height="wrap_content"
+            androidprv:layout_constraintGuide_percent="0"
+            android:orientation="horizontal" />
 
-            <com.android.internal.widget.LockPatternView
-                android:id="@+id/lockPatternView"
-                android:layout_width="match_parent"
-                android:layout_height="0dp"
-                android:layout_weight="1"
-                android:layout_marginEnd="8dip"
-                android:layout_marginBottom="4dip"
-                android:layout_marginStart="8dip"
-                android:layout_gravity="center_horizontal"
-                android:gravity="center"
-                android:clipChildren="false"
-                android:clipToPadding="false" />
+        <com.android.internal.widget.LockPatternView
+            android:id="@+id/lockPatternView"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            androidprv:layout_constraintTop_toBottomOf="@id/pattern_top_guideline"
+            androidprv:layout_constraintBottom_toBottomOf="parent"
+            androidprv:layout_constraintLeft_toLeftOf="parent"
+            androidprv:layout_constraintRight_toRightOf="parent"
+            androidprv:layout_constraintDimensionRatio="1.0"
+            androidprv:layout_constraintVertical_bias="1.0"
+            />
+    </androidx.constraintlayout.widget.ConstraintLayout>
 
-          <include layout="@layout/keyguard_eca"
-              android:id="@+id/keyguard_selector_fade_container"
-              android:layout_width="match_parent"
-              android:layout_height="wrap_content"
-              android:orientation="vertical"
-              android:layout_gravity="bottom|center_horizontal"
-              android:layout_marginTop="@dimen/keyguard_eca_top_margin"
-              android:gravity="center_horizontal" />
-        </LinearLayout>
-    </FrameLayout>
+    <include layout="@layout/keyguard_eca"
+        android:id="@+id/keyguard_selector_fade_container"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:layout_gravity="bottom|center_horizontal"
+        android:layout_marginTop="@dimen/keyguard_eca_top_margin"
+        android:gravity="center_horizontal" />
 
 </com.android.keyguard.KeyguardPatternView>
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardInputViewController.java b/packages/SystemUI/src/com/android/keyguard/KeyguardInputViewController.java
index b473f6d36c5cd..75425e1e6ca35 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardInputViewController.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardInputViewController.java
@@ -204,7 +204,8 @@ public abstract class KeyguardInputViewController<T extends KeyguardInputView>
                 return new KeyguardPatternViewController((KeyguardPatternView) keyguardInputView,
                         mKeyguardUpdateMonitor, securityMode, mLockPatternUtils,
                         keyguardSecurityCallback, mLatencyTracker, mFalsingCollector,
-                        emergencyButtonController, mMessageAreaControllerFactory);
+                        emergencyButtonController, mMessageAreaControllerFactory,
+                        mDevicePostureController);
             } else if (keyguardInputView instanceof KeyguardPasswordView) {
                 return new KeyguardPasswordViewController((KeyguardPasswordView) keyguardInputView,
                         mKeyguardUpdateMonitor, securityMode, mLockPatternUtils,
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardPatternView.java b/packages/SystemUI/src/com/android/keyguard/KeyguardPatternView.java
index 98e7fb48b7a68..a35aedf6f5033 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardPatternView.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardPatternView.java
@@ -15,6 +15,8 @@
  */
 package com.android.keyguard;
 
+import static com.android.systemui.statusbar.policy.DevicePostureController.DEVICE_POSTURE_HALF_OPENED;
+
 import android.content.Context;
 import android.graphics.Rect;
 import android.os.SystemClock;
@@ -22,16 +24,19 @@ import android.text.TextUtils;
 import android.util.AttributeSet;
 import android.view.MotionEvent;
 import android.view.View;
-import android.view.ViewGroup;
 import android.view.animation.AnimationUtils;
 import android.view.animation.Interpolator;
 
+import androidx.constraintlayout.widget.ConstraintLayout;
+import androidx.constraintlayout.widget.ConstraintSet;
+
 import com.android.internal.jank.InteractionJankMonitor;
 import com.android.internal.widget.LockPatternView;
 import com.android.settingslib.animation.AppearAnimationCreator;
 import com.android.settingslib.animation.AppearAnimationUtils;
 import com.android.settingslib.animation.DisappearAnimationUtils;
 import com.android.systemui.R;
+import com.android.systemui.statusbar.policy.DevicePostureController.DevicePostureInt;
 
 public class KeyguardPatternView extends KeyguardInputView
         implements AppearAnimationCreator<LockPatternView.CellState> {
@@ -68,7 +73,7 @@ public class KeyguardPatternView extends KeyguardInputView
 
     KeyguardMessageArea mSecurityMessageDisplay;
     private View mEcaView;
-    private ViewGroup mContainer;
+    private ConstraintLayout mContainer;
 
     public KeyguardPatternView(Context context) {
         this(context, null);
@@ -90,6 +95,18 @@ public class KeyguardPatternView extends KeyguardInputView
                 mContext, android.R.interpolator.fast_out_linear_in));
     }
 
+    void onDevicePostureChanged(@DevicePostureInt int posture) {
+        // Update the guideline based on the device posture...
+        float halfOpenPercentage =
+                mContext.getResources().getFloat(R.dimen.half_opened_bouncer_height_ratio);
+
+        ConstraintSet cs = new ConstraintSet();
+        cs.clone(mContainer);
+        cs.setGuidelinePercent(R.id.pin_pad_top_guideline, posture == DEVICE_POSTURE_HALF_OPENED
+                ? halfOpenPercentage : 0.0f);
+        cs.applyTo(mContainer);
+    }
+
     @Override
     protected void onFinishInflate() {
         super.onFinishInflate();
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardPatternViewController.java b/packages/SystemUI/src/com/android/keyguard/KeyguardPatternViewController.java
index d5be7bacaadc4..94e07b713915c 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardPatternViewController.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardPatternViewController.java
@@ -38,6 +38,7 @@ import com.android.settingslib.Utils;
 import com.android.systemui.R;
 import com.android.systemui.classifier.FalsingClassifier;
 import com.android.systemui.classifier.FalsingCollector;
+import com.android.systemui.statusbar.policy.DevicePostureController;
 
 import java.util.List;
 
@@ -56,6 +57,9 @@ public class KeyguardPatternViewController
     private final FalsingCollector mFalsingCollector;
     private final EmergencyButtonController mEmergencyButtonController;
     private final KeyguardMessageAreaController.Factory mMessageAreaControllerFactory;
+    private final DevicePostureController mPostureController;
+    private final DevicePostureController.Callback mPostureCallback =
+            posture -> mView.onDevicePostureChanged(posture);
 
     private KeyguardMessageAreaController mMessageAreaController;
     private LockPatternView mLockPatternView;
@@ -192,7 +196,8 @@ public class KeyguardPatternViewController
             LatencyTracker latencyTracker,
             FalsingCollector falsingCollector,
             EmergencyButtonController emergencyButtonController,
-            KeyguardMessageAreaController.Factory messageAreaControllerFactory) {
+            KeyguardMessageAreaController.Factory messageAreaControllerFactory,
+            DevicePostureController postureController) {
         super(view, securityMode, keyguardSecurityCallback, emergencyButtonController);
         mKeyguardUpdateMonitor = keyguardUpdateMonitor;
         mLockPatternUtils = lockPatternUtils;
@@ -203,6 +208,7 @@ public class KeyguardPatternViewController
         KeyguardMessageArea kma = KeyguardMessageArea.findSecurityMessageDisplay(mView);
         mMessageAreaController = mMessageAreaControllerFactory.create(kma);
         mLockPatternView = mView.findViewById(R.id.lockPatternView);
+        mPostureController = postureController;
     }
 
     @Override
@@ -235,6 +241,7 @@ public class KeyguardPatternViewController
                 getKeyguardSecurityCallback().onCancelClicked();
             });
         }
+        mPostureController.addCallback(mPostureCallback);
     }
 
     @Override
@@ -247,6 +254,7 @@ public class KeyguardPatternViewController
         if (cancelBtn != null) {
             cancelBtn.setOnClickListener(null);
         }
+        mPostureController.removeCallback(mPostureCallback);
     }
 
     @Override
diff --git a/packages/SystemUI/tests/src/com/android/keyguard/KeyguardPatternViewControllerTest.kt b/packages/SystemUI/tests/src/com/android/keyguard/KeyguardPatternViewControllerTest.kt
index bb71bed84f43d..8e1e42a9c9a25 100644
--- a/packages/SystemUI/tests/src/com/android/keyguard/KeyguardPatternViewControllerTest.kt
+++ b/packages/SystemUI/tests/src/com/android/keyguard/KeyguardPatternViewControllerTest.kt
@@ -26,6 +26,7 @@ import com.android.systemui.R
 import com.android.systemui.SysuiTestCase
 import com.android.systemui.classifier.FalsingCollector
 import com.android.systemui.classifier.FalsingCollectorFake
+import com.android.systemui.statusbar.policy.DevicePostureController
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
@@ -62,6 +63,8 @@ class KeyguardPatternViewControllerTest : SysuiTestCase() {
     private lateinit var mKeyguardMessageAreaController: KeyguardMessageAreaController
     @Mock
     private lateinit var mLockPatternView: LockPatternView
+    @Mock
+    private lateinit var mPostureController: DevicePostureController
 
     private lateinit var mKeyguardPatternViewController: KeyguardPatternViewController
 
@@ -78,7 +81,7 @@ class KeyguardPatternViewControllerTest : SysuiTestCase() {
         mKeyguardPatternViewController = KeyguardPatternViewController(mKeyguardPatternView,
         mKeyguardUpdateMonitor, mSecurityMode, mLockPatternUtils, mKeyguardSecurityCallback,
                 mLatencyTracker, mFalsingCollector, mEmergencyButtonController,
-                mKeyguardMessageAreaControllerFactory)
+                mKeyguardMessageAreaControllerFactory, mPostureController)
     }
 
     @Test