DeviceProfile.java 文件源码

private void updateIconSize(float scale, int drawablePadding, Resources res,
                            DisplayMetrics dm) {
    iconSizePx = (int) (Utilities.pxFromDp(inv.iconSize, dm) * scale);
    iconTextSizePx = (int) (Utilities.pxFromSp(inv.iconTextSize, dm) * scale);
    iconDrawablePaddingPx = drawablePadding;
    hotseatIconSizePx = (int) (Utilities.pxFromDp(inv.hotseatIconSize, dm) * scale);

    // Search Bar
    searchBarSpaceWidthPx = Math.min(widthPx,
            res.getDimensionPixelSize(R.dimen.dynamic_grid_search_bar_max_width));
    searchBarSpaceHeightPx = getSearchBarTopOffset()
            + res.getDimensionPixelSize(R.dimen.dynamic_grid_search_bar_height);

    // Calculate the actual text height
    Paint textPaint = new Paint();
    textPaint.setTextSize(iconTextSizePx);
    FontMetrics fm = textPaint.getFontMetrics();
    cellWidthPx = iconSizePx;
    cellHeightPx = iconSizePx + iconDrawablePaddingPx + (int) Math.ceil(fm.bottom - fm.top);
    final float scaleDps = res.getDimensionPixelSize(R.dimen.dragViewScale);
    dragViewScale = (iconSizePx + scaleDps) / iconSizePx;

    // Hotseat
    hotseatBarHeightPx = iconSizePx + 4 * edgeMarginPx;
    hotseatCellWidthPx = iconSizePx;
    hotseatCellHeightPx = iconSizePx;

    // Folder
    folderCellWidthPx = cellWidthPx + 3 * edgeMarginPx;
    folderCellHeightPx = cellHeightPx + edgeMarginPx;
    folderBackgroundOffset = -edgeMarginPx;
    folderIconSizePx = iconSizePx + 2 * -folderBackgroundOffset;
}