1 files changed, 19 insertions, 2 deletions
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardPatternView.java b/packages/SystemUI/src/com/android/keyguard/KeyguardPatternView.java
index 98e7fb48b7a6..1862fc7f6603 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.pattern_top_guideline, posture == DEVICE_POSTURE_HALF_OPENED
+                ? halfOpenPercentage : 0.0f);
+        cs.applyTo(mContainer);
+    }
+
     @Override
     protected void onFinishInflate() {
         super.onFinishInflate();