Android Open Source - SmoothProgressBar Circular Progress Bar Utils

From Project

License

The source code is released under:

Apache License

If you think the Android project SmoothProgressBar listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

package fr.castorflex.android.circularprogressbar;
//w  ww .ja  va 2 s . c o m
import android.animation.ValueAnimator;

import static java.lang.Math.min;

/**
 * Created by castorflex on 8/14/14.
 */
class CircularProgressBarUtils {
  private CircularProgressBarUtils() {
  }

  static void checkSpeed(float speed) {
    if (speed <= 0f)
      throw new IllegalArgumentException("Speed must be >= 0");
  }

  static void checkColors(int[] colors) {
    if (colors == null || colors.length == 0)
      throw new IllegalArgumentException("You must provide at least 1 color");
  }

  static void checkAngle(int angle) {
    if (angle < 0 || angle > 360)
      throw new IllegalArgumentException(String.format("Illegal angle %d: must be >=0 and <= 360", angle));
  }

  static void checkPositiveOrZero(float number, String name) {
    if (number < 0)
      throw new IllegalArgumentException(String.format("%s %d must be positive", name, number));
  }

  static void checkPositive(int number, String name){
    if(number <= 0)
      throw new IllegalArgumentException(String.format("%s must not be null", name));
  }

  static void checkNotNull(Object o, String name) {
    if (o == null)
      throw new IllegalArgumentException(String.format("%s must be not null", name));
  }

  static float getAnimatedFraction(ValueAnimator animator) {
    float fraction = animator.getDuration() > 0 ? ((float) animator.getCurrentPlayTime()) / animator.getDuration() : 1f;

    fraction %= 1f;
    fraction = min(fraction, 1f);
    fraction = animator.getInterpolator().getInterpolation(fraction);
    return fraction;
  }
}

Java Source Code List