protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setDarkStatusIcon();
    setContentView(R.layout.image_detail);
    AGConnectAppLinking.getInstance().getAppLinking(ImageDetailActivity.this)
        .addOnSuccessListener(resolvedLinkData - > {
            // The user has installed and used your app and the app is opened.
            if (resolvedLinkData != null) {
                Uri deepLink = resolvedLinkData.getDeepLink();
                Log.i(TAG, "Open From AppLinking:" + deepLink);
                // Obtain the image details.
                getSharePicDetails(deepLink.toString());
            }
        }).addOnFailureListener(e - > {
            Bundle data = getIntent().getExtras();
            if (data != null) {
                if (data.getBoolean("firstLink")) {
                    // The user has just installed your app and the app is opened for the first time.
                    getSharePicDetails(data.getString("deepLink"));
                } else {
                    // Open the ImageDetail page.
                    initView();
                }
            }
        });
}

/**
 * Receive the image details from the link of App Linking, which is shared by the user.
 *
 * @param link input a deepLink of App Linking
 */
private void getSharePicDetails(String link) {
    ToastUtils.showToast(this, getResources().getString(R.string.loading_photo));
    sharePhotoID = parseLink(link).get("PhotoID");
    Log.i("AppLinking", "sharePhotoID: " + sharePhotoID);
}

/**
 * Obtain the data of the deep link of App Linking.
 *
 * @param url input the received deepLink
 * @return myMap output the param
 */
public static Map < String, String > parseLink(String url) {
    Map < String, String > myMap = new HashMap < String, String > ();
    String[] urlParts = url.split("\\?");
    String[] params = urlParts[1].split("&");
    for (String param: params) {
        String[] keyValue = param.split("=");
        myMap.put(keyValue[0], keyValue[1]);
    }
    return myMap;
}