Prevent scrolling when interacting with confirm pattern prompt.

This uses the same fix as related commit e55568a7ba

Fix: 207325277
Test: manual (set pattern via settings in dual pane mode)
Change-Id: Ic56829df23442df45d47d60ea5b8319e4ab58931

src/com/android/settings/password/ConfirmLockPattern.java

@@ -17,6 +17,7 @@
 package com.android.settings.password;
 
 import android.annotation.Nullable;
+import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.app.settings.SettingsEnums;
 import android.content.Intent;
@@ -28,6 +29,7 @@ import android.os.UserManager;
 import android.os.storage.StorageManager;
 import android.text.TextUtils;
 import android.view.LayoutInflater;
+import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.animation.AnimationUtils;
@@ -108,6 +110,7 @@ public class ConfirmLockPattern extends ConfirmDeviceCredentialBaseActivity {
 
         }
 
+        @SuppressLint("ClickableViewAccessibility")
         @Override
         public View onCreateView(LayoutInflater inflater, ViewGroup container,
                 Bundle savedInstanceState) {
@@ -146,6 +149,12 @@ public class ConfirmLockPattern extends ConfirmDeviceCredentialBaseActivity {
             mLockPatternView.setInStealthMode(!mLockPatternUtils.isVisiblePatternEnabled(
                     mEffectiveUserId));
             mLockPatternView.setOnPatternListener(mConfirmExistingLockPatternListener);
+            mLockPatternView.setOnTouchListener((v, event) -> {
+                if (event.getAction() == MotionEvent.ACTION_DOWN) {
+                    v.getParent().requestDisallowInterceptTouchEvent(true);
+                }
+                return false;
+            });
             updateStage(Stage.NeedToUnlock);
 
             if (savedInstanceState == null) {