Animates a view to the new specified dimensions. - Android android.view.animation

Android examples for android.view.animation:Animation

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Description

Animates a view to the new specified dimensions.

Demo Code

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.ValueAnimator;
import android.view.View;
import android.view.ViewPropertyAnimator;
import android.view.animation.Interpolator;
import android.view.animation.PathInterpolator;

public class Main{

    /**//from   w  ww  .  java 2s.c  om
     * Animates a view to the new specified dimensions.
     * @param view The view to change the dimensions of.
     * @param newWidth The new width of the view.
     * @param newHeight The new height of the view.
     */
    public static void changeDimensions(final View view,
            final int newWidth, final int newHeight) {
        ValueAnimator animator = ValueAnimator.ofFloat(0f, 1f);

        final int oldWidth = view.getWidth();
        final int oldHeight = view.getHeight();
        final int deltaWidth = newWidth - oldWidth;
        final int deltaHeight = newHeight - oldHeight;

        animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator animator) {
                Float value = (Float) animator.getAnimatedValue();

                view.getLayoutParams().width = (int) (value * deltaWidth + oldWidth);
                view.getLayoutParams().height = (int) (value * deltaHeight + oldHeight);
                view.requestLayout();
            }
        });
        animator.start();
    }

}

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