ThemeUtils.java 文件源码

@NonNull
private static Drawable getVectorDrawable(@NonNull Context context, int drawableId) {
    Drawable drawable = ContextCompat.getDrawable(context, drawableId);

    Preconditions.checkNonNull(drawable);

    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
        drawable = (DrawableCompat.wrap(drawable)).mutate();
    }
    return drawable;
}