Android Open Source - my-wallpaper Effects Factory

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Back to project page my-wallpaper.

License

The source code is released under:

MIT License

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Java Source Code

package com.koonen.photostream.effects;
//from w  w  w.  ja  v  a  2 s  .  co m

import android.view.animation.AccelerateDecelerateInterpolator;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.AnimationSet;
import android.view.animation.ScaleAnimation;
import android.view.animation.TranslateAnimation;

public class EffectsFactory {

  private static void setDefaultAnimationSettings(Animation animation,
      int duration) {
    animation.setInterpolator(new AccelerateDecelerateInterpolator());
    animation.setFillAfter(false);
    animation.setDuration(duration);
  }

  public static Animation createTranslateAnimation(Boolean leftToRight) {
    Animation animation = new TranslateAnimation(
        Animation.RELATIVE_TO_SELF, leftToRight ? -1.1f : 1.1f,
        Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF,
        0.0f, Animation.RELATIVE_TO_SELF, 0.0f);

    setDefaultAnimationSettings(animation, 300);

    return animation;
  }

  public static Animation create3DAnimation(float width, float height) {
    Animation animation = new Rotate3dAnimation(180, 360, width / 2.0f,
        height / 2.0f, 310.0f, false);
    animation.setDuration(500);
    animation.setFillAfter(true);
    animation.setInterpolator(new AccelerateInterpolator());

    return animation;
  }

  public static Animation createScaleAnimation() {
    // float fromX, float toX, float fromY, float toY, float pivotX, float
    // pivotY, int duration
    AnimationSet animationSet = new AnimationSet(true);
    animationSet.setInterpolator(new AccelerateInterpolator());

    Animation animation = new AlphaAnimation(0.0f, 1.0f);
    animation.setDuration(200);
    animationSet.addAnimation(animation);

    animation = new ScaleAnimation(0.5f, 1.5f, 0.5f, 1.5f,
        ScaleAnimation.RELATIVE_TO_SELF, 0.5f,
        ScaleAnimation.RELATIVE_TO_SELF, 0.5f);
    animation.setDuration(200);
    animationSet.addAnimation(animation);

    animation = new ScaleAnimation(1.5f, 1.0f, 1.5f, 1.0f,
        ScaleAnimation.RELATIVE_TO_SELF, 0.5f,
        ScaleAnimation.RELATIVE_TO_SELF, 0.5f);
    animation.setDuration(200);
    animation.setStartOffset(200);
    animationSet.addAnimation(animation);

    return animationSet;
  }

  public static Animation createAlphaAnimation() {
    Animation animation = new AlphaAnimation(0.0f, 1.0f);

    setDefaultAnimationSettings(animation, 700);

    return animation;
  }
}

Java Source Code List