Java WebApkMetaDataKeys类代码示例

import org.chromium.webapk.lib.common.WebApkMetaDataKeys; //导入依赖的package包/类
/**
 * Extracts icon murmur2 hash from the WebAPK's meta data. Return value is a string because the
 * hash can take values up to 2^64-1 which is greater than {@link Long#MAX_VALUE}.
 * @param metaData WebAPK meta data to extract the hash from.
 * @return The hash. An empty string if the hash could not be extracted.
 */
public static String getIconMurmur2HashFromMetaData(Bundle metaData) {
    String value = metaData.getString(WebApkMetaDataKeys.ICON_MURMUR2_HASH);

    // The value should be terminated with 'L' to force the value to be a string.
    if (value == null || !value.endsWith("L")) {
        return "";
    }
    return value.substring(0, value.length() - 1);
}
 

import org.chromium.webapk.lib.common.WebApkMetaDataKeys; //导入依赖的package包/类
/**
 * Extract the icon URLs and icon hashes from the WebAPK's meta data, and returns a map of these
 * {URL, hash} pairs. The icon URLs/icon hashes are stored in a single meta data tag in the
 * WebAPK's AndroidManifest.xml as following:
 * "URL1 hash1 URL2 hash2 URL3 hash3..."
 */
private static Map<String, String> getIconUrlAndIconMurmur2HashMap(Bundle metaData) {
    Map<String, String> iconUrlAndIconMurmur2HashMap = new HashMap<String, String>();
    String iconUrlsAndIconMurmur2Hashes = metaData.getString(
            WebApkMetaDataKeys.ICON_URLS_AND_ICON_MURMUR2_HASHES);
    if (TextUtils.isEmpty(iconUrlsAndIconMurmur2Hashes)) {
        // Open old WebAPKs which support single icon only.
        // TODO(hanxi): crbug.com/665549. Clean up the following code after all the old WebAPKs
        // are updated.
        String iconUrl = metaData.getString(WebApkMetaDataKeys.ICON_URL);
        if (TextUtils.isEmpty(iconUrl)) {
            return iconUrlAndIconMurmur2HashMap;
        }
        iconUrlAndIconMurmur2HashMap.put(iconUrl, getIconMurmur2HashFromMetaData(metaData));
        return iconUrlAndIconMurmur2HashMap;
    }

    // Parse the metadata tag which contains "URL1 hash1 URL2 hash2 URL3 hash3..." pairs and
    // create a hash map.
    // TODO(hanxi): crbug.com/666349. Add a test to verify that the icon URLs in WebAPKs'
    // AndroidManifest.xml don't contain space.
    String[] urlsAndHashes = iconUrlsAndIconMurmur2Hashes.split("[ ]+");
    if (urlsAndHashes.length % 2 != 0) {
        Log.e(TAG, "The icon URLs and icon murmur2 hashes don't come in pairs.");
        return iconUrlAndIconMurmur2HashMap;
    }
    for (int i = 0; i < urlsAndHashes.length; i += 2) {
        iconUrlAndIconMurmur2HashMap.put(urlsAndHashes[i], urlsAndHashes[i + 1]);
    }
    return iconUrlAndIconMurmur2HashMap;
}
 

import org.chromium.webapk.lib.common.WebApkMetaDataKeys; //导入依赖的package包/类
/**
 * Extracts icon murmur2 hash from the WebAPK's meta data. Return value is a string because the
 * hash can take values up to 2^64-1 which is greater than {@link Long#MAX_VALUE}.
 * Note: keep this function for supporting old WebAPKs which have single icon only.
 * @param metaData WebAPK meta data to extract the hash from.
 * @return The hash. An empty string if the hash could not be extracted.
 */
private static String getIconMurmur2HashFromMetaData(Bundle metaData) {
    String value = metaData.getString(WebApkMetaDataKeys.ICON_MURMUR2_HASH);

    // The value should be terminated with 'L' to force the value to be a string.
    if (value == null || !value.endsWith("L")) {
        return "";
    }
    return value.substring(0, value.length() - 1);
}
 

import org.chromium.webapk.lib.common.WebApkMetaDataKeys; //导入依赖的package包/类
/**
 * Constructs a WebApkInfo from the passed in parameters and <meta-data> in the WebAPK's Android
 * manifest.
 *
 * @param webApkPackageName The package name of the WebAPK.
 * @param url Url that the WebAPK should navigate to when launched.
 * @param source Source that the WebAPK was launched from.
 * @param forceNavigation Whether the WebAPK should navigate to {@link url} if it is already
 *     running.
 */
public static WebApkInfo create(
        String webApkPackageName, String url, int source, boolean forceNavigation) {
    // Unlike non-WebAPK web apps, WebAPK ids are predictable. A malicious actor may send an
    // intent with a valid start URL and arbitrary other data. Only use the start URL, the
    // package name and the ShortcutSource from the launch intent and extract the remaining data
    // from the <meta-data> in the WebAPK's Android manifest.

    Bundle bundle = extractWebApkMetaData(webApkPackageName);
    if (bundle == null) {
        return null;
    }

    String name = IntentUtils.safeGetString(bundle, WebApkMetaDataKeys.NAME);
    String shortName = IntentUtils.safeGetString(bundle, WebApkMetaDataKeys.SHORT_NAME);
    String scope = IntentUtils.safeGetString(bundle, WebApkMetaDataKeys.SCOPE);

    int displayMode = displayModeFromString(
            IntentUtils.safeGetString(bundle, WebApkMetaDataKeys.DISPLAY_MODE));
    int orientation = orientationFromString(
            IntentUtils.safeGetString(bundle, WebApkMetaDataKeys.ORIENTATION));
    long themeColor = getLongFromMetaData(bundle, WebApkMetaDataKeys.THEME_COLOR,
            ShortcutHelper.MANIFEST_COLOR_INVALID_OR_MISSING);
    long backgroundColor = getLongFromMetaData(bundle, WebApkMetaDataKeys.BACKGROUND_COLOR,
            ShortcutHelper.MANIFEST_COLOR_INVALID_OR_MISSING);

    int shellApkVersion =
            IntentUtils.safeGetInt(bundle, WebApkMetaDataKeys.SHELL_APK_VERSION, 0);

    String manifestUrl = IntentUtils.safeGetString(bundle, WebApkMetaDataKeys.WEB_MANIFEST_URL);
    String manifestStartUrl = IntentUtils.safeGetString(bundle, WebApkMetaDataKeys.START_URL);
    Map<String, String> iconUrlToMurmur2HashMap = getIconUrlAndIconMurmur2HashMap(bundle);

    int iconId = IntentUtils.safeGetInt(bundle, WebApkMetaDataKeys.ICON_ID, 0);
    Bitmap icon = decodeImageResource(webApkPackageName, iconId);

    return create(WebApkConstants.WEBAPK_ID_PREFIX + webApkPackageName, url, forceNavigation,
            scope, new Icon(icon), name, shortName, displayMode, orientation, source,
            themeColor, backgroundColor, webApkPackageName, shellApkVersion, manifestUrl,
            manifestStartUrl, iconUrlToMurmur2HashMap);
}