ProgressBarAnimation.java

/*
 * Copyright (C) 2014 AChep@xda <artemchep@gmail.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA  02110-1301, USA.
 */
package com.achep.acdisplay.ui.animations;

import android.support.annotation.NonNull;
import android.view.animation.Animation;
import android.view.animation.Transformation;
import android.widget.ProgressBar;

/**
 * Defines a simple from-to animation.
 *
 * @author Artem Chepurnoy
 */
public class ProgressBarAnimation extends Animation {

    @NonNull
    private final ProgressBar mProgressBar;
    private int from;
    private int to;

    public ProgressBarAnimation(@NonNull ProgressBar progressBar, int from, int to) {
        super();
        mProgressBar = progressBar;
        this.from = from;
        this.to = to;
    }

    @Override
    protected void applyTransformation(float interpolatedTime, Transformation t) {
        super.applyTransformation(interpolatedTime, t);
        int value = (int) (from + (to - from) * interpolatedTime);
        if (mProgressBar.getProgress() != value) {
            mProgressBar.setProgress(value);
        }
    }

    public void setRange(int from, int to) {
        this.from = from;
        this.to = to;
    }

}