diff --git a/tests/FlickerTests/Android.bp b/tests/FlickerTests/Android.bp
index 7731e09..855d3c1 100644
--- a/tests/FlickerTests/Android.bp
+++ b/tests/FlickerTests/Android.bp
@@ -46,6 +46,7 @@
         "launcher-helper-lib",
         "launcher-aosp-tapl",
         "platform-test-annotations",
+        "wm-flicker-window-extensions",
     ],
 }
 
@@ -83,5 +84,21 @@
         "flickertestapplib",
         "truth-prebuilt",
         "app-helpers-core",
+        "wm-flicker-window-extensions",
     ],
 }
+
+android_library_import {
+    name: "wm-flicker-window-extensions_nodeps",
+    aars: ["libs/window-extensions-release.aar"],
+    sdk_version: "current",
+}
+
+java_library {
+    name: "wm-flicker-window-extensions",
+    sdk_version: "current",
+    static_libs: [
+        "wm-flicker-window-extensions_nodeps",
+    ],
+    installable: false,
+}
diff --git a/tests/FlickerTests/AndroidManifest.xml b/tests/FlickerTests/AndroidManifest.xml
index fda6091..e173eba0 100644
--- a/tests/FlickerTests/AndroidManifest.xml
+++ b/tests/FlickerTests/AndroidManifest.xml
@@ -43,6 +43,7 @@
     <!-- Allow the test to write directly to /sdcard/ -->
     <application android:requestLegacyExternalStorage="true">
         <uses-library android:name="android.test.runner"/>
+        <uses-library android:name="androidx.window.extensions" android:required="false"/>
     </application>
 
     <instrumentation android:name="androidx.test.runner.AndroidJUnitRunner"
diff --git a/tests/FlickerTests/libs/window-extensions-release.aar b/tests/FlickerTests/libs/window-extensions-release.aar
new file mode 100644
index 0000000..6fc9a67
--- /dev/null
+++ b/tests/FlickerTests/libs/window-extensions-release.aar
Binary files differ
diff --git a/tests/FlickerTests/src/com/android/server/wm/flicker/activityembedding/ActivityEmbeddingTestBase.kt b/tests/FlickerTests/src/com/android/server/wm/flicker/activityembedding/ActivityEmbeddingTestBase.kt
new file mode 100644
index 0000000..ed411b5
--- /dev/null
+++ b/tests/FlickerTests/src/com/android/server/wm/flicker/activityembedding/ActivityEmbeddingTestBase.kt
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.wm.flicker.activityembedding
+
+import android.app.Instrumentation
+import androidx.test.platform.app.InstrumentationRegistry
+import com.android.server.wm.flicker.helpers.ActivityEmbeddingAppHelper
+import org.junit.Before
+
+abstract class ActivityEmbeddingTestBase {
+    val instrumentation: Instrumentation = InstrumentationRegistry.getInstrumentation()
+    val testApp = ActivityEmbeddingAppHelper(instrumentation)
+
+    @Before
+    fun assumeActivityEmbeddingSupported() {
+        // The test should only be run on devices that support ActivityEmbedding.
+        ActivityEmbeddingAppHelper.assumeActivityEmbeddingSupportedDevice()
+    }
+}
diff --git a/tests/FlickerTests/src/com/android/server/wm/flicker/activityembedding/OpenActivityEmbeddingPlaceholderSplit.kt b/tests/FlickerTests/src/com/android/server/wm/flicker/activityembedding/OpenActivityEmbeddingPlaceholderSplit.kt
new file mode 100644
index 0000000..28a72f4
--- /dev/null
+++ b/tests/FlickerTests/src/com/android/server/wm/flicker/activityembedding/OpenActivityEmbeddingPlaceholderSplit.kt
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.wm.flicker.activityembedding
+
+import android.platform.test.annotations.Presubmit
+import android.view.Surface
+import android.view.WindowManagerPolicyConstants
+import androidx.test.filters.RequiresDevice
+import com.android.server.wm.flicker.FlickerBuilderProvider
+import com.android.server.wm.flicker.FlickerParametersRunnerFactory
+import com.android.server.wm.flicker.FlickerTestParameter
+import com.android.server.wm.flicker.FlickerTestParameterFactory
+import com.android.server.wm.flicker.dsl.FlickerBuilder
+import com.android.server.wm.flicker.helpers.ActivityEmbeddingAppHelper
+import org.junit.FixMethodOrder
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.junit.runners.MethodSorters
+import org.junit.runners.Parameterized
+
+/**
+ * Test opening an activity that will launch another activity as ActivityEmbedding placeholder in
+ * split.
+ *
+ * To run this test: `atest FlickerTests:OpenActivityEmbeddingPlaceholderSplit`
+ */
+@RequiresDevice
+@RunWith(Parameterized::class)
+@Parameterized.UseParametersRunnerFactory(FlickerParametersRunnerFactory::class)
+@FixMethodOrder(MethodSorters.NAME_ASCENDING)
+class OpenActivityEmbeddingPlaceholderSplit(private val testSpec: FlickerTestParameter) :
+    ActivityEmbeddingTestBase() {
+
+    @FlickerBuilderProvider
+    fun buildFlicker(): FlickerBuilder {
+        return FlickerBuilder(instrumentation).apply {
+            setup {
+                eachRun {
+                    testApp.launchViaIntent(wmHelper)
+                }
+            }
+            transitions {
+                testApp.launchPlaceholderSplit(wmHelper)
+            }
+            teardown {
+                test {
+                    device.pressHome()
+                    testApp.exit(wmHelper)
+                }
+            }
+        }
+    }
+
+    @Presubmit
+    @Test
+    fun mainActivityBecomesInvisible() {
+        testSpec.assertLayers {
+            isVisible(ActivityEmbeddingAppHelper.MAIN_ACTIVITY_COMPONENT)
+                    .then()
+                    .isInvisible(ActivityEmbeddingAppHelper.MAIN_ACTIVITY_COMPONENT)
+        }
+    }
+
+    @Presubmit
+    @Test
+    fun placeholderSplitBecomesVisible() {
+        testSpec.assertLayers {
+            isInvisible(ActivityEmbeddingAppHelper.PLACEHOLDER_PRIMARY_COMPONENT)
+                    .then()
+                    .isVisible(ActivityEmbeddingAppHelper.PLACEHOLDER_PRIMARY_COMPONENT)
+        }
+        testSpec.assertLayers {
+            isInvisible(ActivityEmbeddingAppHelper.PLACEHOLDER_SECONDARY_COMPONENT)
+                    .then()
+                    .isVisible(ActivityEmbeddingAppHelper.PLACEHOLDER_SECONDARY_COMPONENT)
+        }
+    }
+
+    companion object {
+        /**
+         * Creates the test configurations.
+         *
+         * See [FlickerTestParameterFactory.getConfigNonRotationTests] for configuring
+         * repetitions, screen orientation and navigation modes.
+         */
+        @Parameterized.Parameters(name = "{0}")
+        @JvmStatic
+        fun getParams(): Collection<FlickerTestParameter> {
+            return FlickerTestParameterFactory.getInstance()
+                    .getConfigNonRotationTests(
+                            repetitions = 1,
+                            supportedRotations = listOf(Surface.ROTATION_0, Surface.ROTATION_90),
+                            supportedNavigationModes = listOf(
+                                    WindowManagerPolicyConstants.NAV_BAR_MODE_3BUTTON_OVERLAY,
+                                    WindowManagerPolicyConstants.NAV_BAR_MODE_GESTURAL_OVERLAY
+                            )
+                    )
+        }
+    }
+}
diff --git a/tests/FlickerTests/src/com/android/server/wm/flicker/helpers/ActivityEmbeddingAppHelper.kt b/tests/FlickerTests/src/com/android/server/wm/flicker/helpers/ActivityEmbeddingAppHelper.kt
new file mode 100644
index 0000000..a01f633
--- /dev/null
+++ b/tests/FlickerTests/src/com/android/server/wm/flicker/helpers/ActivityEmbeddingAppHelper.kt
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.wm.flicker.helpers
+
+import android.app.Instrumentation
+import android.support.test.launcherhelper.ILauncherStrategy
+import android.support.test.launcherhelper.LauncherStrategyFactory
+import android.util.Log
+import androidx.test.uiautomator.By
+import androidx.test.uiautomator.Until
+import androidx.window.extensions.WindowExtensions
+import androidx.window.extensions.WindowExtensionsProvider
+import androidx.window.extensions.embedding.ActivityEmbeddingComponent
+import com.android.server.wm.flicker.testapp.ActivityOptions
+import com.android.server.wm.traces.common.FlickerComponentName
+import com.android.server.wm.traces.common.windowmanager.WindowManagerState.Companion.STATE_RESUMED
+import com.android.server.wm.traces.parser.toFlickerComponent
+import com.android.server.wm.traces.parser.windowmanager.WindowManagerStateHelper
+import org.junit.Assume.assumeNotNull
+
+class ActivityEmbeddingAppHelper @JvmOverloads constructor(
+        instr: Instrumentation,
+        launcherName: String = ActivityOptions.ACTIVITY_EMBEDDING_LAUNCHER_NAME,
+        component: FlickerComponentName = MAIN_ACTIVITY_COMPONENT,
+        launcherStrategy: ILauncherStrategy = LauncherStrategyFactory
+                .getInstance(instr)
+                .launcherStrategy
+) : StandardAppHelper(instr, launcherName, component, launcherStrategy) {
+
+    /**
+     * Clicks the button to launch the placeholder primary activity, which should launch the
+     * placeholder secondary activity based on the placeholder rule.
+     */
+    fun launchPlaceholderSplit(wmHelper: WindowManagerStateHelper) {
+        val launchButton = uiDevice.wait(
+                Until.findObject(By.res(getPackage(), "launch_placeholder_split_button")),
+                FIND_TIMEOUT)
+        require(launchButton != null) {
+            "Can't find launch placeholder split button on screen."
+        }
+        launchButton.click()
+        wmHelper.StateSyncBuilder()
+            .withActivityState(PLACEHOLDER_PRIMARY_COMPONENT, STATE_RESUMED)
+            .withActivityState(PLACEHOLDER_SECONDARY_COMPONENT, STATE_RESUMED)
+            .waitForAndVerify()
+    }
+
+    companion object {
+        private const val TAG = "ActivityEmbeddingAppHelper"
+
+        val MAIN_ACTIVITY_COMPONENT = ActivityOptions
+                .ACTIVITY_EMBEDDING_MAIN_ACTIVITY_COMPONENT_NAME.toFlickerComponent()
+
+        val PLACEHOLDER_PRIMARY_COMPONENT = ActivityOptions
+                .ACTIVITY_EMBEDDING_PLACEHOLDER_PRIMARY_ACTIVITY_COMPONENT_NAME.toFlickerComponent()
+
+        val PLACEHOLDER_SECONDARY_COMPONENT = ActivityOptions
+                .ACTIVITY_EMBEDDING_PLACEHOLDER_SECONDARY_ACTIVITY_COMPONENT_NAME
+                .toFlickerComponent()
+
+        @JvmStatic
+        fun getWindowExtensions(): WindowExtensions? {
+            try {
+                return WindowExtensionsProvider.getWindowExtensions()
+            } catch (e: NoClassDefFoundError) {
+                Log.d(TAG, "Extension implementation not found")
+            } catch (e: UnsupportedOperationException) {
+                Log.d(TAG, "Stub Extension")
+            }
+            return null
+        }
+
+        @JvmStatic
+        fun getActivityEmbeddingComponent(): ActivityEmbeddingComponent? {
+            return getWindowExtensions()?.activityEmbeddingComponent
+        }
+
+        @JvmStatic
+        fun assumeActivityEmbeddingSupportedDevice() {
+            assumeNotNull(getActivityEmbeddingComponent())
+        }
+    }
+}
diff --git a/tests/FlickerTests/test-apps/flickerapp/Android.bp b/tests/FlickerTests/test-apps/flickerapp/Android.bp
index 78660c0..0c698ab 100644
--- a/tests/FlickerTests/test-apps/flickerapp/Android.bp
+++ b/tests/FlickerTests/test-apps/flickerapp/Android.bp
@@ -26,6 +26,11 @@
     srcs: ["**/*.java"],
     sdk_version: "current",
     test_suites: ["device-tests"],
+    static_libs: [
+        "androidx.test.ext.junit",
+        "wm-flicker-common-app-helpers",
+        "wm-flicker-window-extensions",
+    ],
 }
 
 java_library {
diff --git a/tests/FlickerTests/test-apps/flickerapp/AndroidManifest.xml b/tests/FlickerTests/test-apps/flickerapp/AndroidManifest.xml
index 3e2130d..387f19b 100644
--- a/tests/FlickerTests/test-apps/flickerapp/AndroidManifest.xml
+++ b/tests/FlickerTests/test-apps/flickerapp/AndroidManifest.xml
@@ -15,12 +15,14 @@
 -->
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-     package="com.android.server.wm.flicker.testapp">
+    package="com.android.server.wm.flicker.testapp">
 
     <uses-sdk android:minSdkVersion="29"
          android:targetSdkVersion="29"/>
     <application android:allowBackup="false"
          android:supportsRtl="true">
+        <uses-library android:name="androidx.window.extensions" android:required="false"/>
+
         <activity android:name=".SimpleActivity"
              android:taskAffinity="com.android.server.wm.flicker.testapp.SimpleActivity"
              android:theme="@style/CutoutShortEdges"
@@ -163,5 +165,33 @@
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
+
+        <activity
+            android:name=".ActivityEmbeddingMainActivity"
+            android:label="ActivityEmbedding Main"
+            android:taskAffinity="com.android.server.wm.flicker.testapp.ActivityEmbedding"
+            android:theme="@style/CutoutShortEdges"
+            android:configChanges="orientation|screenSize|smallestScreenSize|screenLayout"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity
+            android:name=".ActivityEmbeddingPlaceholderPrimaryActivity"
+            android:label="ActivityEmbedding Placeholder Primary"
+            android:taskAffinity="com.android.server.wm.flicker.testapp.ActivityEmbedding"
+            android:theme="@style/CutoutShortEdges"
+            android:configChanges="orientation|screenSize|smallestScreenSize|screenLayout"
+            android:exported="false">
+        </activity>
+        <activity
+            android:name=".ActivityEmbeddingPlaceholderSecondaryActivity"
+            android:label="ActivityEmbedding Placeholder Secondary"
+            android:taskAffinity="com.android.server.wm.flicker.testapp.ActivityEmbedding"
+            android:theme="@style/CutoutShortEdges"
+            android:configChanges="orientation|screenSize|smallestScreenSize|screenLayout"
+            android:exported="false"/>
     </application>
 </manifest>
diff --git a/tests/FlickerTests/test-apps/flickerapp/res/layout/activity_embedding_base_layout.xml b/tests/FlickerTests/test-apps/flickerapp/res/layout/activity_embedding_base_layout.xml
new file mode 100644
index 0000000..3a02cad
--- /dev/null
+++ b/tests/FlickerTests/test-apps/flickerapp/res/layout/activity_embedding_base_layout.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2022 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/root_activity_layout"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+</LinearLayout>
diff --git a/tests/FlickerTests/test-apps/flickerapp/res/layout/activity_embedding_main_layout.xml b/tests/FlickerTests/test-apps/flickerapp/res/layout/activity_embedding_main_layout.xml
new file mode 100644
index 0000000..19c81a8
--- /dev/null
+++ b/tests/FlickerTests/test-apps/flickerapp/res/layout/activity_embedding_main_layout.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2022 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:background="@android:color/holo_orange_light">
+
+    <Button
+        android:id="@+id/launch_placeholder_split_button"
+        android:layout_width="wrap_content"
+        android:layout_height="48dp"
+        android:layout_centerHorizontal="true"
+        android:onClick="launchPlaceholderSplit"
+        android:text="Launch Placeholder Split" />
+
+</LinearLayout>
diff --git a/tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityEmbeddingBaseActivity.java b/tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityEmbeddingBaseActivity.java
new file mode 100644
index 0000000..cd23e9f
--- /dev/null
+++ b/tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityEmbeddingBaseActivity.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.wm.flicker.testapp;
+
+import android.app.Activity;
+import android.os.Bundle;
+
+/** Base activity of ActivityEmbedding split activities. */
+public abstract class ActivityEmbeddingBaseActivity extends Activity {
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_embedding_base_layout);
+        findViewById(R.id.root_activity_layout).setBackgroundColor(getBackgroundColor());
+    }
+
+    /** Sets different colors to visually distinguish split pairs. */
+    abstract int getBackgroundColor();
+}
diff --git a/tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityEmbeddingMainActivity.java b/tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityEmbeddingMainActivity.java
new file mode 100644
index 0000000..166e3ca
--- /dev/null
+++ b/tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityEmbeddingMainActivity.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.wm.flicker.testapp;
+
+import static com.android.server.wm.flicker.testapp.ActivityOptions.ACTIVITY_EMBEDDING_PLACEHOLDER_PRIMARY_ACTIVITY_COMPONENT_NAME;
+import static com.android.server.wm.flicker.testapp.ActivityOptions.ACTIVITY_EMBEDDING_PLACEHOLDER_SECONDARY_ACTIVITY_COMPONENT_NAME;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.util.ArraySet;
+import android.util.Log;
+import android.view.View;
+
+import androidx.window.extensions.embedding.ActivityEmbeddingComponent;
+import androidx.window.extensions.embedding.EmbeddingRule;
+import androidx.window.extensions.embedding.SplitPlaceholderRule;
+
+import com.android.server.wm.flicker.helpers.ActivityEmbeddingAppHelper;
+
+import java.util.Set;
+
+/** Main activity of the ActivityEmbedding test app to launch other embedding activities. */
+public class ActivityEmbeddingMainActivity extends Activity {
+    private static final String TAG = "ActivityEmbeddingMainActivity";
+    private static final float DEFAULT_SPLIT_RATIO = 0.5f;
+
+    private ActivityEmbeddingComponent mEmbeddingComponent;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_embedding_main_layout);
+
+        initializeSplitRules();
+    }
+
+    /** R.id.launch_placeholder_split_button onClick */
+    public void launchPlaceholderSplit(View view) {
+        startActivity(new Intent().setComponent(
+                ACTIVITY_EMBEDDING_PLACEHOLDER_PRIMARY_ACTIVITY_COMPONENT_NAME));
+    }
+
+    private void initializeSplitRules() {
+        mEmbeddingComponent = ActivityEmbeddingAppHelper.getActivityEmbeddingComponent();
+        if (mEmbeddingComponent == null) {
+            // Embedding not supported
+            Log.d(TAG, "ActivityEmbedding is not supported on this device");
+            finish();
+            return;
+        }
+
+        mEmbeddingComponent.setEmbeddingRules(getSplitRules());
+    }
+
+    private Set<EmbeddingRule> getSplitRules() {
+        final Set<EmbeddingRule> rules = new ArraySet<>();
+
+        final SplitPlaceholderRule placeholderRule = new SplitPlaceholderRule.Builder(
+                new Intent().setComponent(
+                        ACTIVITY_EMBEDDING_PLACEHOLDER_SECONDARY_ACTIVITY_COMPONENT_NAME),
+                activity -> activity instanceof ActivityEmbeddingPlaceholderPrimaryActivity,
+                intent -> intent.getComponent().equals(
+                        ACTIVITY_EMBEDDING_PLACEHOLDER_PRIMARY_ACTIVITY_COMPONENT_NAME),
+                windowMetrics -> true)
+                .setSplitRatio(DEFAULT_SPLIT_RATIO)
+                .build();
+        rules.add(placeholderRule);
+        return rules;
+    }
+}
diff --git a/tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityEmbeddingPlaceholderPrimaryActivity.java b/tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityEmbeddingPlaceholderPrimaryActivity.java
new file mode 100644
index 0000000..05c7a0b
--- /dev/null
+++ b/tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityEmbeddingPlaceholderPrimaryActivity.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.wm.flicker.testapp;
+
+import android.graphics.Color;
+
+/**
+ * Primary activity that will launch {@link ActivityEmbeddingPlaceholderSecondaryActivity} to split
+ * as placeholder based on the placeholder rule.
+ */
+public class ActivityEmbeddingPlaceholderPrimaryActivity extends ActivityEmbeddingBaseActivity {
+    @Override
+    int getBackgroundColor() {
+        return Color.BLUE;
+    }
+}
diff --git a/tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityEmbeddingPlaceholderSecondaryActivity.java b/tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityEmbeddingPlaceholderSecondaryActivity.java
new file mode 100644
index 0000000..a9a51cd
--- /dev/null
+++ b/tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityEmbeddingPlaceholderSecondaryActivity.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.wm.flicker.testapp;
+
+import android.graphics.Color;
+
+/**
+ * Activity to be used as the secondary placeholder activity to split with
+ * {@link ActivityEmbeddingPlaceholderPrimaryActivity}.
+ */
+public class ActivityEmbeddingPlaceholderSecondaryActivity extends ActivityEmbeddingBaseActivity {
+    @Override
+    int getBackgroundColor() {
+        return Color.GREEN;
+    }
+}
diff --git a/tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityOptions.java b/tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityOptions.java
index 6cda482..19fafb7 100644
--- a/tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityOptions.java
+++ b/tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityOptions.java
@@ -87,4 +87,17 @@
     public static final ComponentName NOTIFICATION_ACTIVITY_COMPONENT_NAME =
             new ComponentName(FLICKER_APP_PACKAGE,
                     FLICKER_APP_PACKAGE + ".NotificationActivity");
+
+    public static final String ACTIVITY_EMBEDDING_LAUNCHER_NAME = "ActivityEmbeddingMainActivity";
+    public static final ComponentName ACTIVITY_EMBEDDING_MAIN_ACTIVITY_COMPONENT_NAME =
+            new ComponentName(FLICKER_APP_PACKAGE,
+                    FLICKER_APP_PACKAGE + ".ActivityEmbeddingMainActivity");
+    public static final ComponentName
+            ACTIVITY_EMBEDDING_PLACEHOLDER_PRIMARY_ACTIVITY_COMPONENT_NAME = new ComponentName(
+                    FLICKER_APP_PACKAGE,
+            FLICKER_APP_PACKAGE + ".ActivityEmbeddingPlaceholderPrimaryActivity");
+    public static final ComponentName
+            ACTIVITY_EMBEDDING_PLACEHOLDER_SECONDARY_ACTIVITY_COMPONENT_NAME = new ComponentName(
+                    FLICKER_APP_PACKAGE,
+            FLICKER_APP_PACKAGE + ".ActivityEmbeddingPlaceholderSecondaryActivity");
 }