packages/SystemUI/src/com/android/systemui/statusbar/phone/VelocityTrackerInterface.java

/*
 * Copyright (C) 2014 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.systemui.statusbar.phone;

import android.view.MotionEvent;

/**
 * An interface for a velocity tracker to delegate. To be implemented by different velocity tracking
 * algorithms.
 */
public interface VelocityTrackerInterface {
    public void addMovement(MotionEvent event);
    public void computeCurrentVelocity(int units);
    public float getXVelocity();
    public float getYVelocity();
    public void recycle();
}