Android9.0 NotificationManager.notify()抛出java.lang.SecurityException

<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.ACCESS_NOTIFICATION_POLICY" />

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
    NotificationManager notificationManager = getSystemService(NotificationManager.class);
    if (!notificationManager.isNotificationPolicyAccessGranted()) {
        Intent intent = new Intent(Settings.ACTION_NOTIFICATION_POLICY_ACCESS_SETTINGS);
        startActivity(intent);
    }
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == REQUEST_CODE_NOTIFICATION_POLICY && Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        NotificationManager notificationManager = getSystemService(NotificationManager.class);
        if (notificationManager.isNotificationPolicyAccessGranted()) {
            // 用户已授予通知策略访问权限，可以发送通知
            // 在此处调用NotificationManager.notify()方法发送通知
        } else {
            // 用户未授予通知策略访问权限，无法发送通知
        }
    }
}