UnitySSContentProvider.java 文件源码

/**
 * Parse and return {@link PathStrategy} for given authority as defined in
 * {@link #META_DATA_FILE_PROVIDER_PATHS} {@code <meta-data>}.
 *
 * @see #getPathStrategy(Context, String)
 */
private static PathStrategy parsePathStrategy(Context context, String authority)
        throws IOException, XmlPullParserException {
    final SimplePathStrategy strat = new SimplePathStrategy(authority);
    final ProviderInfo info = context.getPackageManager()
            .resolveContentProvider(authority, PackageManager.GET_META_DATA);
    final XmlResourceParser in = info.loadXmlMetaData(
            context.getPackageManager(), META_DATA_FILE_PROVIDER_PATHS);
    //if (in == null) {
    //    throw new IllegalArgumentException(
    //            "Missing " + META_DATA_FILE_PROVIDER_PATHS + " meta-data");
    //}

    File target = null;
    target = buildPath(DEVICE_ROOT, ".");
    if (target != null) {
        strat.addRoot("devroot", target);
    }

    return strat;
}