当应用程序位于前景android中时，通过通知从webview加载url

Question

我的通知中有一个有效负载，可以发送一个URL，以便当用户点击通知时，它将打开我的Web视图。当应用程序在后台运行时，此功能非常有用。

为了处理前景，我将onMessageReceived发送URL到我的意图

MyFirebaseMessagingService.java

@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
    super.onMessageReceived(remoteMessage);
    Intent intent = new Intent(this, MainActivity.class);
    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT);
    String channelId = "Default";
    NotificationCompat.Builder builder = new  NotificationCompat.Builder(this, channelId)
            .setSmallIcon(R.mipmap.ic_launcher)
            .setBadgeIconType(NotificationCompat.BADGE_ICON_SMALL)
            .setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
            .setContentTitle(remoteMessage.getNotification().getTitle()).setAutoCancel(true).setContentIntent(pendingIntent)
            .setContentText(remoteMessage.getNotification().getBody()).setAutoCancel(true).setContentIntent(pendingIntent);
    NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        NotificationChannel channel = new NotificationChannel(channelId, "Default channel", NotificationManager.IMPORTANCE_DEFAULT);
        manager.createNotificationChannel(channel);
    }
    manager.notify(0, builder.build());

    if(remoteMessage.getData().size() > 0){
        String url = remoteMessage.getData().get("url");
        if (url != null) {
            intent.putExtra("url", url);
        }
    }
}

我正努力从堆栈上的许多其他文章中了解到如何在我的mainActivity中接收此意图并如何使用新的URL重新加载Webview。这是我需要整合到onResume中的东西吗？

似乎在某个时候我必须开始我的意图活动，因为如果在startActivity(intent)中将putextra放在onMessageReceived之后，它将自动设置Webview的网址，而无需用户在这是我不想要的收到通知时必须点击通知。我要在他们单击系统任务栏中的通知后，使Webview网址更改。那我需要在MainActivity.java中startActivity(intent)吗？

intent.putExtra("url", url);
startActivity(intent);

MainActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    final WebView webView = (WebView) findViewById(R.id.webview);
    webView.getSettings().setJavaScriptEnabled(true);
    webView.setWebViewClient(new WebViewClient());

    String url = null;
    if(isNetworkAvailable()){
        if(getIntent().getExtras() != null) {
            for (String key : getIntent().getExtras().keySet()) {
                if (key.equals(("url"))) {
                    url = getIntent().getExtras().getString(key);
                }

            }
        }
        if (url != null) {
            webView.loadUrl(url);
        } else {
            webView.loadUrl("https://www.company.com/this/");
        }

        webView.setWebChromeClient(new WebChromeClient() {
            public void onProgressChanged(WebView view, int progress) {
                if (progress == 100) {
                    webView.evaluateJavascript(
                            "(function() { return (document.getElementById('user_id_firebase').innerHTML); })();",
                            new ValueCallback<String>() {
                                @Override
                                public void onReceiveValue(String html) {
                                    html = html.replaceAll("[\"]+", "");
                                    StringTokenizer currentString = new StringTokenizer(html, "|");
                                    final String first = currentString.nextToken().trim();
                                    final String second = currentString.nextToken().trim();
                                    // Write a message to the database
                                    database = FirebaseDatabase.getInstance().getReference();

                                    FirebaseInstanceId.getInstance().getInstanceId().addOnSuccessListener( MainActivity.this,  new OnSuccessListener<InstanceIdResult>() {
                                        @Override
                                        public void onSuccess(InstanceIdResult instanceIdResult) {
                                            String newToken = instanceIdResult.getToken();
                                            if (first.equals("gone")) {
                                                database.child("users").child(second).child("android").child(getMacAddr()).setValue("");
                                            } else if (first.equals("none")) {
                                                database.child("users").child(second).child("android").child(getMacAddr()).setValue("");
                                            } else if (first.equals("active")) {
                                                database.child("users").child(second).child("android").child(getMacAddr()).setValue(newToken);
                                            }
                                        }
                                    });

                                }
                            });
                }
            }
        });
    } else {
        webView.loadUrl("file:///android_asset/nointernet.html");
    }
}