1 /* 2 * Copyright (c) 2025 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_SCROLL_ANIMATION_CONSTS_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_SCROLL_ANIMATION_CONSTS_H 18 19 #include <cstdint> 20 21 namespace OHOS::Ace::NG { 22 inline constexpr float FLING_SCALE_K = 1.5f; // x(t) = [K / (4.2 * γ)] * v₀ * [1 - exp(-γt)] 23 inline constexpr float FRICTION_SCALE = -4.2f; 24 inline constexpr uint32_t CUSTOM_SPRING_ANIMATION_DURATION = 1000; 25 } 26 27 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_SCROLL_ANIMATION_CONSTS_H