LauncherIcons.java 文件源码

/**
 * Returns a bitmap suitable for the all apps view. The icon is badged for {@param user}.
 * The bitmap is also visually normalized with other icons.
 */
public static Bitmap createBadgedIconBitmap(
        Drawable icon, UserHandle user, Context context, int iconAppTargetSdk) {

    IconNormalizer normalizer;
    float scale = 1f;
        normalizer = IconNormalizer.getInstance(context);
        if (AndroidVersion.isAtLeastOreo() && iconAppTargetSdk >= Build.VERSION_CODES.O) {
            boolean[] outShape = new boolean[1];
            AdaptiveIconDrawable dr = (AdaptiveIconDrawable)
                    context.getDrawable(R.drawable.adaptive_icon_drawable_wrapper).mutate();
            dr.setBounds(0, 0, 1, 1);
            scale = normalizer.getScale(icon, null, dr.getIconMask(), outShape);
            if (!outShape[0]){
                Drawable wrappedIcon = wrapToAdaptiveIconDrawable(context, icon, scale);
                if (wrappedIcon != icon) {
                    icon = wrappedIcon;
                    scale = normalizer.getScale(icon, null, null, null);
                }
            }
    }
    Bitmap bitmap = createIconBitmap(icon, context, scale);
    if (AndroidVersion.isAtLeastOreo() &&
            icon instanceof AdaptiveIconDrawable) {
        bitmap = ShadowGenerator.getInstance(context).recreateIcon(bitmap);
    }
    return badgeIconForUser(bitmap, user, context);
}