WheelVerticalScroller.java
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/*
* android-spinnerwheel
* https://github.com/ai212983/android-spinnerwheel
*
* based on
*
* Android Wheel Control.
* https://code.google.com/p/android-wheel/
*
* Copyright 2011 Yuri Kanivets
*
* 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 antistatic.spinnerwheel;
import android.content.Context;
import android.view.MotionEvent;
/**
* Scroller class handles scrolling events and updates the
*/
public class WheelVerticalScroller extends WheelScroller {
/**
* Constructor
* @param context the current context
* @param listener the scrolling listener
*/
public WheelVerticalScroller(Context context, ScrollingListener listener) {
super(context, listener);
}
@Override
protected int getCurrentScrollerPosition() {
return scroller.getCurrY();
}
@Override
protected int getFinalScrollerPosition() {
return scroller.getFinalY();
}
@Override
protected float getMotionEventPosition(MotionEvent event) {
// should be overriden
return event.getY();
}
@Override
protected void scrollerStartScroll(int distance, int time) {
scroller.startScroll(0, 0, 0, distance, time);
}
@Override
protected void scrollerFling(int position, int velocityX, int velocityY) {
final int maxPosition = 0x7FFFFFFF;
final int minPosition = -maxPosition;
scroller.fling(0, position, 0, -velocityY, 0, 0, minPosition, maxPosition);
}
}