Merge "Snap for 11400057 from ded14cc2110e39408f74abac8a83e0a0f16608d2 to simpleperf-release" into simpleperf-releasesimpleperf-release

1 files changed, 37 insertions, 0 deletions

diff --git a/src/com/android/launcher3/allapps/AllAppsTransitionListener.java b/src/com/android/launcher3/allapps/AllAppsTransitionListener.java
new file mode 100644
index 0000000000..4a17e29039
--- /dev/null
+++ b/src/com/android/launcher3/allapps/AllAppsTransitionListener.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2023 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.launcher3.allapps;
+
+/**
+ * An interface for listening to all-apps open-close transition
+ */
+public interface AllAppsTransitionListener {
+    /**
+     * Called when the transition starts
+     * @param toAllApps {@code true} if this transition is supposed to end in the AppApps UI
+     *
+     * @see ActivityAllAppsContainerView
+     */
+    void onAllAppsTransitionStart(boolean toAllApps);
+
+    /**
+     * Called when the transition ends
+     * @param toAllApps {@code true} if the final state is all-apps
+     *
+     * @see ActivityAllAppsContainerView
+     */
+    void onAllAppsTransitionEnd(boolean toAllApps);
+}