1 /*
2 * Copyright (C) 2019 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package com.android.systemui.shade
17
18 /** A listener interface to be notified of expansion events for the notification panel. */
interfacenull19 fun interface ShadeExpansionListener {
20 /**
21 * Invoked whenever the notification panel expansion changes, at every animation frame. This is
22 * the main expansion that happens when the user is swiping up to dismiss the lock screen and
23 * swiping to pull down the notification shade.
24 */
25 fun onPanelExpansionChanged(event: ShadeExpansionChangeEvent)
26 }
27