Example usage for android.view View getScaleX

Introduction

In this page you can find the example usage for android.view View getScaleX.

Prototype

@ViewDebug.ExportedProperty(category = "drawing")
public float getScaleX() 

Source Link

Document

The amount that the view is scaled in x around the pivot point, as a proportion of the view's unscaled width.

Usage

From source file:Main.java

public static synchronized void animateScaleUp(View v, float targetScale) {
    float currentScaleX = v.getScaleX();
    float currentScaleY = v.getScaleY();

    PropertyValuesHolder scaleXHolder = PropertyValuesHolder.ofFloat(View.SCALE_X, currentScaleX, targetScale);
    PropertyValuesHolder scaleYHolder = PropertyValuesHolder.ofFloat(View.SCALE_Y, currentScaleY, targetScale);
    ValueAnimator scaleAnimator = ObjectAnimator.ofPropertyValuesHolder(v, scaleXHolder, scaleYHolder);
    scaleAnimator.start();/*  w w w .  jav  a  2  s .  co m*/
}

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From source file:Main.java

public static synchronized void animateScaleDown(View v, float targetScale) {
    float currentScaleX = v.getScaleX();
    float currentScaleY = v.getScaleY();

    PropertyValuesHolder scaleXHolder = PropertyValuesHolder.ofFloat(View.SCALE_X, currentScaleX, targetScale);
    PropertyValuesHolder scaleYHolder = PropertyValuesHolder.ofFloat(View.SCALE_Y, currentScaleY, targetScale);

    ValueAnimator scaleAnimator = ObjectAnimator.ofPropertyValuesHolder(v, scaleXHolder, scaleYHolder);
    scaleAnimator.start();/* ww w . j av a2 s  .  c  o m*/
}

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From source file:Main.java

public static void startScaleAnime(final View view, float newScale, Animator.AnimatorListener listener) {
    ValueAnimator anime = ValueAnimator.ofFloat(view.getScaleX(), newScale);
    anime.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
        @Override//from w  w  w  .ja  v  a 2 s  .  c o m
        public void onAnimationUpdate(ValueAnimator animation) {
            float s = Float.parseFloat(animation.getAnimatedValue().toString());
            view.setScaleX(s);
            view.setScaleY(s);
        }
    });
    if (listener != null) {
        anime.addListener(listener);
    }
    anime.setDuration(mAnimeDuration);
    anime.start();
}

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From source file:com.skydoves.elasticviewsexample.ElasticVIews.ElasticAction.java

public static void doAction(View view, int duration, float scaleX, float scaleY) {
    try {//from  ww  w. j  a  va  2s.c  o m
        if (view.getScaleX() == 1) {
            ViewCompat.animate(view).setDuration(duration).scaleX(scaleX).scaleY(scaleY)
                    .setInterpolator(new CycleInterpolator(0.5f))
                    .setListener(new ViewPropertyAnimatorListener() {

                        @Override
                        public void onAnimationStart(final View view) {
                        }

                        @Override
                        public void onAnimationEnd(final View v) {
                        }

                        @Override
                        public void onAnimationCancel(final View view) {
                        }
                    }).withLayer().start();
        }
    } catch (Exception e) {
        Log.e(TAG, "only ViewGroups : likes RelativeLayout, LinearLayout, etc could doAction");
    }
}

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From source file:Main.java

public static int[] getCenterDeltaInScreenSpace(View v0, View v1, int[] delta) {
    v0.getLocationInWindow(sLoc0);/*from   w w w .ja  v  a  2 s.  c  om*/
    v1.getLocationInWindow(sLoc1);

    sLoc0[0] += (v0.getMeasuredWidth() * v0.getScaleX()) / 2;
    sLoc0[1] += (v0.getMeasuredHeight() * v0.getScaleY()) / 2;
    sLoc1[0] += (v1.getMeasuredWidth() * v1.getScaleX()) / 2;
    sLoc1[1] += (v1.getMeasuredHeight() * v1.getScaleY()) / 2;

    if (delta == null) {
        delta = new int[2];
    }

    delta[0] = sLoc1[0] - sLoc0[0];
    delta[1] = sLoc1[1] - sLoc0[1];

    return delta;
}

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From source file:Main.java

/**
 * Helps to show views./*  w ww  .  j  ava  2  s. c om*/
 *
 * @param views             Views to show.
 * @param animationDuration Animation duration.
 * @param animationDelay    Animation delay.
 */
static void orderedShowViews(final List<View> views, long animationDuration, int animationDelay) {
    if (views != null) {
        for (int viewIndex = 0; viewIndex < views.size(); viewIndex++) {
            final View childView = views.get(viewIndex);
            childView.setVisibility(View.VISIBLE);
            final ScaleAnimation scaleAnimation = new ScaleAnimation(0, childView.getScaleX(), 0,
                    childView.getScaleY(), Animation.RELATIVE_TO_SELF, .5f, Animation.RELATIVE_TO_SELF, .5f);
            scaleAnimation.setInterpolator(new DecelerateInterpolator());
            scaleAnimation.setDuration(animationDuration);
            scaleAnimation.setStartOffset(viewIndex * animationDelay);
            childView.startAnimation(scaleAnimation);
        }
    }
}

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From source file:Main.java

/**
 * Inverse of {@link #getDescendantCoordRelativeToSelf(View, int[])}.
 *//*from   w  ww  .ja  v  a2s. co  m*/
public static float mapCoordInSelfToDescendent(View descendant, View root, int[] coord) {
    ArrayList<View> ancestorChain = new ArrayList<View>();

    float[] pt = { coord[0], coord[1] };

    View v = descendant;
    while (v != root) {
        ancestorChain.add(v);
        v = (View) v.getParent();
    }
    ancestorChain.add(root);

    float scale = 1.0f;
    Matrix inverse = new Matrix();
    int count = ancestorChain.size();
    for (int i = count - 1; i >= 0; i--) {
        View ancestor = ancestorChain.get(i);
        View next = i > 0 ? ancestorChain.get(i - 1) : null;

        pt[0] += ancestor.getScrollX();
        pt[1] += ancestor.getScrollY();

        if (next != null) {
            pt[0] -= next.getLeft();
            pt[1] -= next.getTop();
            next.getMatrix().invert(inverse);
            inverse.mapPoints(pt);
            scale *= next.getScaleX();
        }
    }

    coord[0] = (int) Math.round(pt[0]);
    coord[1] = (int) Math.round(pt[1]);
    return scale;
}

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From source file:Main.java

/**
 * Maps a coorindate in a descendant view into the parent.
 *//*w w w. j ava 2 s . co  m*/
public static float mapCoordInDescendentToSelf(View descendant, View root, float[] coord,
        boolean includeRootScroll) {
    ArrayList<View> ancestorChain = new ArrayList<View>();

    float[] pt = { coord[0], coord[1] };

    View v = descendant;
    while (v != root && v != null) {
        ancestorChain.add(v);
        v = (View) v.getParent();
    }
    ancestorChain.add(root);

    float scale = 1.0f;
    int count = ancestorChain.size();
    for (int i = 0; i < count; i++) {
        View v0 = ancestorChain.get(i);
        // For TextViews, scroll has a meaning which relates to the text position
        // which is very strange... ignore the scroll.
        if (v0 != descendant || includeRootScroll) {
            pt[0] -= v0.getScrollX();
            pt[1] -= v0.getScrollY();
        }

        v0.getMatrix().mapPoints(pt);
        pt[0] += v0.getLeft();
        pt[1] += v0.getTop();
        scale *= v0.getScaleX();
    }

    coord[0] = pt[0];
    coord[1] = pt[1];
    return scale;
}

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From source file:Main.java

/**
 * Maps a coordinate in a descendant view into the parent.
 *//*from w w  w .  j a  va 2  s.c  o  m*/
public static float mapCoordInDescendentToSelf(View descendant, View root, float[] coord,
        boolean includeRootScroll) {
    ArrayList<View> ancestorChain = new ArrayList<>();

    float[] pt = { coord[0], coord[1] };

    View v = descendant;
    while (v != root && v != null) {
        ancestorChain.add(v);
        v = (View) v.getParent();
    }
    ancestorChain.add(root);

    float scale = 1.0f;
    int count = ancestorChain.size();
    for (int i = 0; i < count; i++) {
        View v0 = ancestorChain.get(i);
        // For TextViews, scroll has a meaning which relates to the text position
        // which is very strange... ignore the scroll.
        if (v0 != descendant || includeRootScroll) {
            pt[0] -= v0.getScrollX();
            pt[1] -= v0.getScrollY();
        }

        v0.getMatrix().mapPoints(pt);
        pt[0] += v0.getLeft();
        pt[1] += v0.getTop();
        scale *= v0.getScaleX();
    }

    coord[0] = pt[0];
    coord[1] = pt[1];
    return scale;
}

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From source file:Main.java

/**
 * Given a coordinate relative to the descendant, find the coordinate in a parent view's
 * coordinates.//  w w w  .ja va 2s. c  om
 *
 * @param descendant The descendant to which the passed coordinate is relative.
 * @param root The root view to make the coordinates relative to.
 * @param coord The coordinate that we want mapped.
 * @param includeRootScroll Whether or not to account for the scroll of the descendant:
 *          sometimes this is relevant as in a child's coordinates within the descendant.
 * @return The factor by which this descendant is scaled relative to this DragLayer. Caution
 *         this scale factor is assumed to be equal in X and Y, and so if at any point this
 *         assumption fails, we will need to return a pair of scale factors.
 */
public static float getDescendantCoordRelativeToParent(View descendant, View root, int[] coord,
        boolean includeRootScroll) {
    ArrayList<View> ancestorChain = new ArrayList<View>();

    float[] pt = { coord[0], coord[1] };

    View v = descendant;
    while (v != root && v != null) {
        ancestorChain.add(v);
        v = (View) v.getParent();
    }
    ancestorChain.add(root);

    float scale = 1.0f;
    int count = ancestorChain.size();
    for (int i = 0; i < count; i++) {
        View v0 = ancestorChain.get(i);
        // For TextViews, scroll has a meaning which relates to the text position
        // which is very strange... ignore the scroll.
        if (v0 != descendant || includeRootScroll) {
            pt[0] -= v0.getScrollX();
            pt[1] -= v0.getScrollY();
        }

        v0.getMatrix().mapPoints(pt);
        pt[0] += v0.getLeft();
        pt[1] += v0.getTop();
        scale *= v0.getScaleX();
    }

    coord[0] = (int) Math.round(pt[0]);
    coord[1] = (int) Math.round(pt[1]);
    return scale;
}

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