/*
* Copyright 2014 Adnan A M.
* 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.naman14.timber.timely.animation;
import android.animation.TypeEvaluator;
public class TimelyEvaluator implements TypeEvaluator<float[][]> {
private float[][] _cachedPoints = null;
@Override
public float[][] evaluate(float fraction, float[][] startValue, float[][] endValue) {
int pointsCount = startValue.length;
initCache(pointsCount);
for (int i = 0; i < pointsCount; i++) {
_cachedPoints[i][0] = startValue[i][0] + fraction * (endValue[i][0] - startValue[i][0]);
_cachedPoints[i][1] = startValue[i][1] + fraction * (endValue[i][1] - startValue[i][1]);
}
return _cachedPoints;
}
private void initCache(int pointsCount) {
if (_cachedPoints == null || _cachedPoints.length != pointsCount) {
_cachedPoints = new float[pointsCount][2];
}
}
}