diff --git a/services/inputflinger/tests/FakeWindows.h b/services/inputflinger/tests/FakeWindows.h
index ee65d3a..3a3238a 100644
--- a/services/inputflinger/tests/FakeWindows.h
+++ b/services/inputflinger/tests/FakeWindows.h
@@ -304,6 +304,13 @@
                                           WithFlags(expectedFlags)));
     }
 
+    inline void consumeMotionPointerDown(int32_t pointerIdx,
+                                         const ::testing::Matcher<MotionEvent>& matcher) {
+        const int32_t action = AMOTION_EVENT_ACTION_POINTER_DOWN |
+                (pointerIdx << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT);
+        consumeMotionEvent(testing::AllOf(WithMotionAction(action), matcher));
+    }
+
     inline void consumeMotionPointerUp(int32_t pointerIdx,
                                        const ::testing::Matcher<MotionEvent>& matcher) {
         const int32_t action = AMOTION_EVENT_ACTION_POINTER_UP |
diff --git a/services/inputflinger/tests/InputDispatcher_test.cpp b/services/inputflinger/tests/InputDispatcher_test.cpp
index 5eab6be..04ed670 100644
--- a/services/inputflinger/tests/InputDispatcher_test.cpp
+++ b/services/inputflinger/tests/InputDispatcher_test.cpp
@@ -4172,6 +4172,121 @@
     window2->consumeMotionEvent(WithDownTime(secondDown->getDownTime()));
 }
 
+/**
+ * When events are not split, the downTime should be adjusted such that the downTime corresponds
+ * to the event time of the first ACTION_DOWN. If a new window appears, it should not affect
+ * the event routing because the first window prevents splitting.
+ */
+TEST_F(InputDispatcherTest, SplitTouchesSendCorrectActionDownTimeForNewWindow) {
+    std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
+    sp<FakeWindowHandle> window1 =
+            sp<FakeWindowHandle>::make(application, mDispatcher, "Window1", DISPLAY_ID);
+    window1->setTouchableRegion(Region{{0, 0, 100, 100}});
+    window1->setPreventSplitting(true);
+
+    sp<FakeWindowHandle> window2 =
+            sp<FakeWindowHandle>::make(application, mDispatcher, "Window2", DISPLAY_ID);
+    window2->setTouchableRegion(Region{{100, 0, 200, 100}});
+
+    mDispatcher->onWindowInfosChanged({{*window1->getInfo()}, {}, 0, 0});
+
+    // Touch down on the first window
+    NotifyMotionArgs downArgs = MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                                        .pointer(PointerBuilder(0, ToolType::FINGER).x(50).y(50))
+                                        .build();
+    mDispatcher->notifyMotion(downArgs);
+
+    window1->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_DOWN), WithDownTime(downArgs.downTime)));
+
+    // Second window is added
+    mDispatcher->onWindowInfosChanged({{*window1->getInfo(), *window2->getInfo()}, {}, 0, 0});
+
+    // Now touch down on the window with another pointer
+    mDispatcher->notifyMotion(MotionArgsBuilder(POINTER_1_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(50).y(50))
+                                      .pointer(PointerBuilder(1, ToolType::FINGER).x(150).y(50))
+                                      .downTime(downArgs.downTime)
+                                      .build());
+    window1->consumeMotionPointerDown(1, AllOf(WithDownTime(downArgs.downTime)));
+
+    // Finish the gesture
+    mDispatcher->notifyMotion(MotionArgsBuilder(POINTER_1_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(50).y(50))
+                                      .pointer(PointerBuilder(1, ToolType::FINGER).x(150).y(50))
+                                      .downTime(downArgs.downTime)
+                                      .build());
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(50).y(50))
+                                      .downTime(downArgs.downTime)
+                                      .build());
+    window1->consumeMotionPointerUp(1, AllOf(WithDownTime(downArgs.downTime)));
+    window1->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_UP), WithDownTime(downArgs.downTime)));
+    window2->assertNoEvents();
+}
+
+/**
+ * When splitting touch events, the downTime should be adjusted such that the downTime corresponds
+ * to the event time of the first ACTION_DOWN sent to the new window.
+ * If a new window that does not support split appears on the screen and gets touched with the
+ * second finger, it should not get any events because it doesn't want split touches. At the same
+ * time, the first window should not get the pointer_down event because it supports split touches
+ * (and the touch occurred outside of the bounds of window1).
+ */
+TEST_F(InputDispatcherTest, SplitTouchesDropsEventForNonSplittableSecondWindow) {
+    std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
+    sp<FakeWindowHandle> window1 =
+            sp<FakeWindowHandle>::make(application, mDispatcher, "Window1", DISPLAY_ID);
+    window1->setTouchableRegion(Region{{0, 0, 100, 100}});
+
+    sp<FakeWindowHandle> window2 =
+            sp<FakeWindowHandle>::make(application, mDispatcher, "Window2", DISPLAY_ID);
+    window2->setTouchableRegion(Region{{100, 0, 200, 100}});
+
+    mDispatcher->onWindowInfosChanged({{*window1->getInfo()}, {}, 0, 0});
+
+    // Touch down on the first window
+    NotifyMotionArgs downArgs = MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                                        .pointer(PointerBuilder(0, ToolType::FINGER).x(50).y(50))
+                                        .build();
+    mDispatcher->notifyMotion(downArgs);
+
+    window1->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_DOWN), WithDownTime(downArgs.downTime)));
+
+    // Second window is added
+    window2->setPreventSplitting(true);
+    mDispatcher->onWindowInfosChanged({{*window1->getInfo(), *window2->getInfo()}, {}, 0, 0});
+
+    // Now touch down on the window with another pointer
+    mDispatcher->notifyMotion(MotionArgsBuilder(POINTER_1_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(50).y(50))
+                                      .pointer(PointerBuilder(1, ToolType::FINGER).x(150).y(50))
+                                      .downTime(downArgs.downTime)
+                                      .build());
+    // Event is dropped because window2 doesn't support split touch, and window1 does.
+
+    // Complete the gesture
+    mDispatcher->notifyMotion(MotionArgsBuilder(POINTER_1_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(50).y(50))
+                                      .pointer(PointerBuilder(1, ToolType::FINGER).x(150).y(50))
+                                      .downTime(downArgs.downTime)
+                                      .build());
+    // A redundant MOVE event is generated that doesn't carry any new information
+    window1->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_MOVE), WithDownTime(downArgs.downTime)));
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(50).y(50))
+                                      .downTime(downArgs.downTime)
+                                      .build());
+
+    window1->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_UP), WithDownTime(downArgs.downTime)));
+    window1->assertNoEvents();
+    window2->assertNoEvents();
+}
+
 TEST_F(InputDispatcherTest, HoverMoveEnterMouseClickAndHoverMoveExit) {
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> windowLeft = sp<FakeWindowHandle>::make(application, mDispatcher, "Left",