/* * Copyright (C) 2020 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.anim; import androidx.dynamicanimation.animation.SpringForce; /** * Utility class to store configurations for spring animation */ public class SpringProperty { public static final SpringProperty DEFAULT = new SpringProperty(); // Play spring when the animation is going towards the end public static final int FLAG_CAN_SPRING_ON_END = 1 << 0; // Play spring when animation is going towards the start (in reverse direction) public static final int FLAG_CAN_SPRING_ON_START = 1 << 1; public final int flags; float mDampingRatio = SpringForce.DAMPING_RATIO_MEDIUM_BOUNCY; float mStiffness = SpringForce.STIFFNESS_MEDIUM; public SpringProperty() { this(0); } public SpringProperty(int flags) { this.flags = flags; } public SpringProperty setDampingRatio(float dampingRatio) { mDampingRatio = dampingRatio; return this; } public SpringProperty setStiffness(float stiffness) { mStiffness = stiffness; return this; } }