[鸿蒙开发]如何获取系统中是否有安装该应用

public boolean getApplicationInfo(Context context, String bundleName) {
        IBundleManager bundleManager = context.getBundleManager();
        BundleInfo packageInfo = null;
        String applicationName = "";
        try {
            packageInfo = bundleManager.getBundleInfo(bundleName, 0);
            applicationName = context.getBundleManager().getAbilityLabel(
                    context.getBundleName(), context.getAbilityInfo().getClassName());
            if (packageInfo != null && applicationName != "") {  
                return true;
            }
        } catch (final RemoteException e) {
                return false;
        }
        return false;
    }
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