Examples with Interpolators com.android.launcher3.anim.Interpolators used on opensource projects

Example 1 with Interpolators

use of com.android.launcher3.anim.Interpolators in project android_packages_apps_Launcher3 by crdroidandroid.

the class FolderAnimationManager method addPreviewItemAnimators.

/**
 * Animate the items on the current page.
 */
private void addPreviewItemAnimators(AnimatorSet animatorSet, final float folderScale, int previewItemOffsetX, int previewItemOffsetY) {
    ClippedFolderIconLayoutRule rule = mFolderIcon.getLayoutRule();
    boolean isOnFirstPage = mFolder.mContent.getCurrentPage() == 0;
    final List<BubbleTextView> itemsInPreview = getPreviewIconsOnPage(isOnFirstPage ? 0 : mFolder.mContent.getCurrentPage());
    final int numItemsInPreview = itemsInPreview.size();
    final int numItemsInFirstPagePreview = isOnFirstPage ? numItemsInPreview : MAX_NUM_ITEMS_IN_PREVIEW;
    TimeInterpolator previewItemInterpolator = getPreviewItemInterpolator();
    ShortcutAndWidgetContainer cwc = mContent.getPageAt(0).getShortcutsAndWidgets();
    for (int i = 0; i < numItemsInPreview; ++i) {
        final BubbleTextView btv = itemsInPreview.get(i);
        CellLayout.LayoutParams btvLp = (CellLayout.LayoutParams) btv.getLayoutParams();
        // Calculate the final values in the LayoutParams.
        btvLp.isLockedToGrid = true;
        cwc.setupLp(btv);
        // Match scale of icons in the preview of the items on the first page.
        float previewScale = rule.scaleForItem(numItemsInFirstPagePreview);
        float previewSize = rule.getIconSize() * previewScale;
        float iconScale = previewSize / itemsInPreview.get(i).getIconSize();
        final float initialScale = iconScale / folderScale;
        final float finalScale = 1f;
        float scale = mIsOpening ? initialScale : finalScale;
        btv.setScaleX(scale);
        btv.setScaleY(scale);
        // Match positions of the icons in the folder with their positions in the preview
        rule.computePreviewItemDrawingParams(i, numItemsInFirstPagePreview, mTmpParams);
        // The PreviewLayoutRule assumes that the icon size takes up the entire width so we
        // offset by the actual size.
        int iconOffsetX = (int) ((btvLp.width - btv.getIconSize()) * iconScale) / 2;
        final int previewPosX = (int) ((mTmpParams.transX - iconOffsetX + previewItemOffsetX) / folderScale);
        final float paddingTop = btv.getPaddingTop() * iconScale;
        final int previewPosY = (int) ((mTmpParams.transY + previewItemOffsetY - paddingTop) / folderScale);
        final float xDistance = previewPosX - btvLp.x;
        final float yDistance = previewPosY - btvLp.y;
        Animator translationX = getAnimator(btv, View.TRANSLATION_X, xDistance, 0f);
        translationX.setInterpolator(previewItemInterpolator);
        play(animatorSet, translationX);
        Animator translationY = getAnimator(btv, View.TRANSLATION_Y, yDistance, 0f);
        translationY.setInterpolator(previewItemInterpolator);
        play(animatorSet, translationY);
        Animator scaleAnimator = getAnimator(btv, SCALE_PROPERTY, initialScale, finalScale);
        scaleAnimator.setInterpolator(previewItemInterpolator);
        play(animatorSet, scaleAnimator);
        if (mFolder.getItemCount() > MAX_NUM_ITEMS_IN_PREVIEW) {
            // These delays allows the preview items to move as part of the Folder's motion,
            // and its only necessary for large folders because of differing interpolators.
            int delay = mIsOpening ? mDelay : mDelay * 2;
            if (mIsOpening) {
                translationX.setStartDelay(delay);
                translationY.setStartDelay(delay);
                scaleAnimator.setStartDelay(delay);
            }
            translationX.setDuration(translationX.getDuration() - delay);
            translationY.setDuration(translationY.getDuration() - delay);
            scaleAnimator.setDuration(scaleAnimator.getDuration() - delay);
        }
        animatorSet.addListener(new AnimatorListenerAdapter() {

            @Override
            public void onAnimationStart(Animator animation) {
                super.onAnimationStart(animation);
                // Necessary to initialize values here because of the start delay.
                if (mIsOpening) {
                    btv.setTranslationX(xDistance);
                    btv.setTranslationY(yDistance);
                    btv.setScaleX(initialScale);
                    btv.setScaleY(initialScale);
                }
            }

            @Override
            public void onAnimationEnd(Animator animation) {
                super.onAnimationEnd(animation);
                btv.setTranslationX(0.0f);
                btv.setTranslationY(0.0f);
                btv.setScaleX(1f);
                btv.setScaleY(1f);
            }
        });
    }
}