1 /* 2 * Copyright (C) 2023 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 17 package com.android.systemui.util 18 19 import androidx.core.animation.Animator 20 21 /** 22 * Add an action which will be invoked when the animation has ended. 23 * 24 * @return the [Animator.AnimatorListener] added to the Animator 25 * @see Animator.end 26 */ doOnEndnull27inline fun Animator.doOnEnd( 28 crossinline action: (animator: Animator) -> Unit 29 ): Animator.AnimatorListener = addListener(onEnd = action) 30 31 /** 32 * Add an action which will be invoked when the animation has started. 33 * 34 * @return the [Animator.AnimatorListener] added to the Animator 35 * @see Animator.start 36 */ 37 inline fun Animator.doOnStart( 38 crossinline action: (animator: Animator) -> Unit 39 ): Animator.AnimatorListener = addListener(onStart = action) 40 41 /** 42 * Add an action which will be invoked when the animation has been cancelled. 43 * 44 * @return the [Animator.AnimatorListener] added to the Animator 45 * @see Animator.cancel 46 */ 47 inline fun Animator.doOnCancel( 48 crossinline action: (animator: Animator) -> Unit 49 ): Animator.AnimatorListener = addListener(onCancel = action) 50 51 /** 52 * Add an action which will be invoked when the animation has repeated. 53 * 54 * @return the [Animator.AnimatorListener] added to the Animator 55 */ 56 inline fun Animator.doOnRepeat( 57 crossinline action: (animator: Animator) -> Unit 58 ): Animator.AnimatorListener = addListener(onRepeat = action) 59 60 /** 61 * Add a listener to this Animator using the provided actions. 62 * 63 * @return the [Animator.AnimatorListener] added to the Animator 64 */ 65 inline fun Animator.addListener( 66 crossinline onEnd: (animator: Animator) -> Unit = {}, <lambda>null67 crossinline onStart: (animator: Animator) -> Unit = {}, <lambda>null68 crossinline onCancel: (animator: Animator) -> Unit = {}, <lambda>null69 crossinline onRepeat: (animator: Animator) -> Unit = {} 70 ): Animator.AnimatorListener { 71 val listener = 72 object : Animator.AnimatorListener { onAnimationRepeatnull73 override fun onAnimationRepeat(animator: Animator) = onRepeat(animator) 74 override fun onAnimationEnd(animator: Animator) = onEnd(animator) 75 override fun onAnimationCancel(animator: Animator) = onCancel(animator) 76 override fun onAnimationStart(animator: Animator) = onStart(animator) 77 } 78 addListener(listener) 79 return listener 80 } 81