I have a WebView application, with firebase cloud Firebase Cloud Messaging for push notifications.I want that clicking on a notification to open a URL in my WebView, and not the main page of the default site in my app.I need it to be a different URL on every notification that I send through FCM each time.I searched a lot on Google and found all kinds of answers. But in practice it doesn't work. for exmaple, Android Push Notification URL
.... thank you! my code: MainActivity.java `
package com.webview.myapplication;
import android.Manifest;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.DownloadManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.webkit.CookieManager;
import android.webkit.URLUtil;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;
import androidx.annotation.RequiresApi;
import androidx.core.app.ActivityCompat;
import androidx.core.app.NotificationCompat;
import java.util.Arrays;
import java.util.List;
public class MainActivity extends Activity {
private final int STORAGE_PERMISSION_CODE = 1;
private WebView mWebView;
public void notifyParse(){
if (getIntent().getExtras() != null) {
if (getIntent().getStringExtra("LINK")!=null) {
Intent i=new Intent(this,urlFromNotify.class);
i.putExtra("link",getIntent().getStringExtra("LINK"));
MainActivity.this.startActivity(i);
finish();
}
}
}
private void requestStoragePermission() {
if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.READ_EXTERNAL_STORAGE)) {
new AlertDialog.Builder(this)
.setTitle("Permission needed")
.setMessage("This permission is needed to download files")
.setPositiveButton("ok", (dialog, which) -> ActivityCompat.requestPermissions(MainActivity.this,
new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, STORAGE_PERMISSION_CODE))
.setNegativeButton("cancel", (dialog, which) -> dialog.dismiss())
.create().show();
} else {
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, STORAGE_PERMISSION_CODE);
}
}
@RequiresApi(api = Build.VERSION_CODES.Q)
@Override
@SuppressLint("SetJavaScriptEnabled")
protected void onCreate(Bundle savedInstanceState) {
requestStoragePermission();
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mWebView = findViewById(R.id.activity_main_webview);
WebSettings webSettings = mWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
mWebView.setWebViewClient(new HelloWebViewClient());
mWebView.setDownloadListener((url, userAgent, contentDisposition, mimeType, contentLength) -> {
Uri source = Uri.parse(url);
DownloadManager.Request request = new DownloadManager.Request(source);
String cookies = CookieManager.getInstance().getCookie(url);
request.addRequestHeader("cookie", cookies);
request.addRequestHeader("User-Agent", userAgent);
request.setDescription("Downloading File...");
request.setTitle(URLUtil.guessFileName(url, contentDisposition, mimeType));
request.allowScanningByMediaScanner();
request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, URLUtil.guessFileName(url, contentDisposition, mimeType));
DownloadManager dm = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);
dm.enqueue(request);
Toast.makeText(this, R.string.downloading, Toast.LENGTH_LONG).show();
});
mWebView.loadUrl("https://noam.org.il"); //Replace The Link Here
}
@Override
public void onBackPressed() {
if (mWebView.canGoBack()) {
mWebView.goBack();
} else {
super.onBackPressed();
}
}
// checking if URL is allowed
private class HelloWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(final WebView view, final String url)
{
view.loadUrl(url);
return true;
}
}
}
`
FirebaseMessageReceiver.java
`
package com.webview.myapplication;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.Build;
import android.widget.RemoteViews;
import androidx.core.app.NotificationCompat;
import com.google.firebase.messaging.FirebaseMessagingService;
import com.google.firebase.messaging.RemoteMessage;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
public class FirebaseMessageReceiver
extends FirebaseMessagingService {
Bitmap bitmap;
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
String message = remoteMessage.getData().get("message");
//imageUri will contain URL of the image to be displayed with Notification
String imageUri = remoteMessage.getData().get("image");
String link=remoteMessage.getData().get("link");
//To get a Bitmap image from the URL received
bitmap = getBitmapfromUrl(imageUri);
sendNotification(message, bitmap,link);
}
/**
* Create and show a simple notification containing the received FCM message.
*/
private void sendNotification(String messageBody, Bitmap image, String link) {
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("LINK",link);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setLargeIcon(image)/*Notification icon image*/
.setSmallIcon(R.drawable.gfg)
.setContentTitle(messageBody)
.setStyle(new NotificationCompat.BigPictureStyle()
.bigPicture(image))/*Notification with Image*/
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}
public Bitmap getBitmapfromUrl(String imageUrl) {
try {
URL url = new URL(imageUrl);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input = connection.getInputStream();
Bitmap bitmap = BitmapFactory.decodeStream(input);
return bitmap;
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
}
}}
`
urlFromNotify.java `
package com.webview.myapplication;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.webkit.WebView;
public class urlFromNotify extends AppCompatActivity {
void urlOpen(){
WebView webView = (WebView) findViewById(R.id.activity_main_webview);
Intent i = getIntent();
String url = i.getStringExtra("link");
webView.loadUrl(url);
}
}
`
