AnimationUtils.java

/*
 * Copyright (c) 2014. Marshal Chen.
 */

package com.marshalchen.ua.common.commonUtils.uiUtils;

import android.animation.Keyframe;
import android.animation.ObjectAnimator;
import android.animation.PropertyValuesHolder;
import android.annotation.TargetApi;
import android.os.Build;
import android.view.View;

/**
 * Some  Animations.
 * There are only some shake animations so far.
 */
@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
public class AnimationUtils {
    /**
     * @param view
     * @return
     * @see #wholeShake(android.view.View, float) ,default shakeFactor=1f
     */
    public static ObjectAnimator wholeShake(View view) {
        return wholeShake(view, 1f);
    }

    /**
     * Shake the view for whole direction
     *
     * @param view
     * @param shakeFactor
     * @return
     */
    public static ObjectAnimator wholeShake(View view, float shakeFactor) {

        PropertyValuesHolder pvhScaleX = PropertyValuesHolder.ofKeyframe(View.SCALE_X,
                Keyframe.ofFloat(0f, 1f),
                Keyframe.ofFloat(.1f, .9f),
                Keyframe.ofFloat(.2f, .9f),
                Keyframe.ofFloat(.3f, 1.1f),
                Keyframe.ofFloat(.4f, 1.1f),
                Keyframe.ofFloat(.5f, 1.1f),
                Keyframe.ofFloat(.6f, 1.1f),
                Keyframe.ofFloat(.7f, 1.1f),
                Keyframe.ofFloat(.8f, 1.1f),
                Keyframe.ofFloat(.9f, 1.1f),
                Keyframe.ofFloat(1f, 1f)
        );

        PropertyValuesHolder pvhScaleY = PropertyValuesHolder.ofKeyframe(View.SCALE_Y,
                Keyframe.ofFloat(0f, 1f),
                Keyframe.ofFloat(.1f, .9f),
                Keyframe.ofFloat(.2f, .9f),
                Keyframe.ofFloat(.3f, 1.1f),
                Keyframe.ofFloat(.4f, 1.1f),
                Keyframe.ofFloat(.5f, 1.1f),
                Keyframe.ofFloat(.6f, 1.1f),
                Keyframe.ofFloat(.7f, 1.1f),
                Keyframe.ofFloat(.8f, 1.1f),
                Keyframe.ofFloat(.9f, 1.1f),
                Keyframe.ofFloat(1f, 1f)
        );

        PropertyValuesHolder pvhRotate = PropertyValuesHolder.ofKeyframe(View.ROTATION,
                Keyframe.ofFloat(0f, 0f),
                Keyframe.ofFloat(.1f, -3f * shakeFactor),
                Keyframe.ofFloat(.2f, -3f * shakeFactor),
                Keyframe.ofFloat(.3f, 3f * shakeFactor),
                Keyframe.ofFloat(.4f, -3f * shakeFactor),
                Keyframe.ofFloat(.5f, 3f * shakeFactor),
                Keyframe.ofFloat(.6f, -3f * shakeFactor),
                Keyframe.ofFloat(.7f, 3f * shakeFactor),
                Keyframe.ofFloat(.8f, -3f * shakeFactor),
                Keyframe.ofFloat(.9f, 3f * shakeFactor),
                Keyframe.ofFloat(1f, 0)
        );

        return ObjectAnimator.ofPropertyValuesHolder(view, pvhScaleX, pvhScaleY, pvhRotate).
                setDuration(1000);
    }

    /**
     * Shake the view from left to right
     *
     * @param view
     * @return
     */
    public static ObjectAnimator leftRightShake(View view) {
        // int delta = view.getResources().getDimensionPixelOffset(R.dimen.spacing_medium);
        int delta = 40;
        PropertyValuesHolder pvhTranslateX = PropertyValuesHolder.ofKeyframe(View.TRANSLATION_X,
                Keyframe.ofFloat(0f, 0),
                Keyframe.ofFloat(.10f, -delta),
                Keyframe.ofFloat(.26f, delta),
                Keyframe.ofFloat(.42f, -delta),
                Keyframe.ofFloat(.58f, delta),
                Keyframe.ofFloat(.74f, -delta),
                Keyframe.ofFloat(.90f, delta),
                Keyframe.ofFloat(1f, 0f)
        );

        return ObjectAnimator.ofPropertyValuesHolder(view, pvhTranslateX).
                setDuration(500);
    }

}