diff --git a/services/inputflinger/UnwantedInteractionBlocker.cpp b/services/inputflinger/UnwantedInteractionBlocker.cpp
index 02bc47d..f889de5 100644
--- a/services/inputflinger/UnwantedInteractionBlocker.cpp
+++ b/services/inputflinger/UnwantedInteractionBlocker.cpp
@@ -117,7 +117,7 @@
 }
 
 static int32_t getActionUpForPointerId(const NotifyMotionArgs& args, int32_t pointerId) {
-    for (size_t i = 0; i < args.pointerCount; i++) {
+    for (size_t i = 0; i < args.getPointerCount(); i++) {
         if (pointerId == args.pointerProperties[i].id) {
             return AMOTION_EVENT_ACTION_POINTER_UP |
                     (i << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT);
@@ -156,9 +156,10 @@
             actionMasked == AMOTION_EVENT_ACTION_POINTER_UP;
 
     NotifyMotionArgs newArgs{args};
-    newArgs.pointerCount = 0;
+    newArgs.pointerProperties.clear();
+    newArgs.pointerCoords.clear();
     int32_t newActionIndex = 0;
-    for (uint32_t i = 0; i < args.pointerCount; i++) {
+    for (uint32_t i = 0; i < args.getPointerCount(); i++) {
         const int32_t pointerId = args.pointerProperties[i].id;
         if (pointerIds.find(pointerId) != pointerIds.end()) {
             // skip this pointer
@@ -170,19 +171,18 @@
             }
             continue;
         }
-        newArgs.pointerProperties[newArgs.pointerCount].copyFrom(args.pointerProperties[i]);
-        newArgs.pointerCoords[newArgs.pointerCount].copyFrom(args.pointerCoords[i]);
+        newArgs.pointerProperties.push_back(args.pointerProperties[i]);
+        newArgs.pointerCoords.push_back(args.pointerCoords[i]);
         if (i == actionIndex) {
-            newActionIndex = newArgs.pointerCount;
+            newActionIndex = newArgs.getPointerCount() - 1;
         }
-        newArgs.pointerCount++;
     }
     // Update POINTER_DOWN or POINTER_UP actions
     if (isPointerUpOrDownAction && newArgs.action != ACTION_UNKNOWN) {
         newArgs.action =
                 actionMasked | (newActionIndex << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT);
         // Convert POINTER_DOWN and POINTER_UP to DOWN and UP if there's only 1 pointer remaining
-        if (newArgs.pointerCount == 1) {
+        if (newArgs.getPointerCount() == 1) {
             if (actionMasked == AMOTION_EVENT_ACTION_POINTER_DOWN) {
                 newArgs.action = AMOTION_EVENT_ACTION_DOWN;
             } else if (actionMasked == AMOTION_EVENT_ACTION_POINTER_UP) {
@@ -201,13 +201,14 @@
  */
 static std::optional<NotifyMotionArgs> removeStylusPointerIds(const NotifyMotionArgs& args) {
     std::set<int32_t> stylusPointerIds;
-    for (uint32_t i = 0; i < args.pointerCount; i++) {
+    for (uint32_t i = 0; i < args.getPointerCount(); i++) {
         if (isStylusToolType(args.pointerProperties[i].toolType)) {
             stylusPointerIds.insert(args.pointerProperties[i].id);
         }
     }
     NotifyMotionArgs withoutStylusPointers = removePointerIds(args, stylusPointerIds);
-    if (withoutStylusPointers.pointerCount == 0 || withoutStylusPointers.action == ACTION_UNKNOWN) {
+    if (withoutStylusPointers.getPointerCount() == 0 ||
+        withoutStylusPointers.action == ACTION_UNKNOWN) {
         return std::nullopt;
     }
     return withoutStylusPointers;
@@ -272,7 +273,7 @@
 std::vector<NotifyMotionArgs> cancelSuppressedPointers(
         const NotifyMotionArgs& args, const std::set<int32_t>& oldSuppressedPointerIds,
         const std::set<int32_t>& newSuppressedPointerIds) {
-    LOG_ALWAYS_FATAL_IF(args.pointerCount == 0, "0 pointers in %s", args.dump().c_str());
+    LOG_ALWAYS_FATAL_IF(args.getPointerCount() == 0, "0 pointers in %s", args.dump().c_str());
 
     // First, let's remove the old suppressed pointers. They've already been canceled previously.
     NotifyMotionArgs oldArgs = removePointerIds(args, oldSuppressedPointerIds);
@@ -284,7 +285,7 @@
     const int32_t actionMasked = MotionEvent::getActionMasked(args.action);
     // We will iteratively remove pointers from 'removedArgs'.
     NotifyMotionArgs removedArgs{oldArgs};
-    for (uint32_t i = 0; i < oldArgs.pointerCount; i++) {
+    for (uint32_t i = 0; i < oldArgs.getPointerCount(); i++) {
         const int32_t pointerId = oldArgs.pointerProperties[i].id;
         if (newSuppressedPointerIds.find(pointerId) == newSuppressedPointerIds.end()) {
             // This is a pointer that should not be canceled. Move on.
@@ -296,7 +297,7 @@
             continue;
         }
 
-        if (removedArgs.pointerCount == 1) {
+        if (removedArgs.getPointerCount() == 1) {
             // We are about to remove the last pointer, which means there will be no more gesture
             // remaining. This is identical to canceling all pointers, so just send a single CANCEL
             // event, without any of the preceding POINTER_UP with FLAG_CANCELED events.
@@ -314,7 +315,7 @@
     }
 
     // Now 'removedArgs' contains only pointers that are valid.
-    if (removedArgs.pointerCount <= 0 || removedArgs.action == ACTION_UNKNOWN) {
+    if (removedArgs.getPointerCount() <= 0 || removedArgs.action == ACTION_UNKNOWN) {
         return out;
     }
     out.push_back(removedArgs);
@@ -473,7 +474,7 @@
 UnwantedInteractionBlocker::~UnwantedInteractionBlocker() {}
 
 void SlotState::update(const NotifyMotionArgs& args) {
-    for (size_t i = 0; i < args.pointerCount; i++) {
+    for (size_t i = 0; i < args.getPointerCount(); i++) {
         const int32_t pointerId = args.pointerProperties[i].id;
         const int32_t resolvedAction = resolveActionForPointer(i, args.action);
         processPointerId(pointerId, resolvedAction);
@@ -571,7 +572,7 @@
                                                    const SlotState& newSlotState) {
     std::vector<::ui::InProgressTouchEvdev> touches;
 
-    for (size_t i = 0; i < args.pointerCount; i++) {
+    for (size_t i = 0; i < args.getPointerCount(); i++) {
         const int32_t pointerId = args.pointerProperties[i].id;
         touches.emplace_back(::ui::InProgressTouchEvdev());
         touches.back().major = args.pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR);
@@ -660,7 +661,7 @@
 
     // Now that we know which slots should be suppressed, let's convert those to pointer id's.
     std::set<int32_t> newSuppressedIds;
-    for (size_t i = 0; i < args.pointerCount; i++) {
+    for (size_t i = 0; i < args.getPointerCount(); i++) {
         const int32_t pointerId = args.pointerProperties[i].id;
         std::optional<size_t> slot = oldSlotState.getSlotForPointerId(pointerId);
         if (!slot) {