鸿蒙Webview加载Url，alipay无法返回

@Override
public boolean isNeedLoadUrl(WebView webView, ResourceRequest request) {
    if (request == null || request.getRequestUrl() == null) {
        return false;
    }
    String url = request.getRequestUrl().toString();
    L.d("isNeedLoadUrl=>" + url);
    if (url.startsWith("http:") || url.startsWith("https:")) {
        webView.load(url);
        return false;
    } else if (url.startsWith("alipays:")) {
        try {
            Intent intent1 = new Intent();
            intent1.setAction("android.intent.action.VIEW");
            intent1.setUri(Uri.parse(url));
            a.startAbility(intent1);
            return true;
        } catch (Exception e) {
            L.e(e);
            return false;
        }
    } else {
        return super.isNeedLoadUrl(webView, request);
    }
}
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