RadioBrowserApi BugFix

res/values-de/strings.xml

@@ -318,6 +318,7 @@ Please preserve the xml tags and the utf8 encoding.
     <string name="radio_stream_require_wifi">WLAN Verbindung benötigt</string>
     <string name="radio_stream_require_wifi_desc">Falls aktiviert, wird der Radiowecker nur mit einer WLAN-Verbindung gestartet.</string>
     <string name="radio_stream_search">Suchen</string>
+    <string name="radio_stream_unreachable_server">Der Server ist nicht erreichbar.</string>
     <string name="radio_stream_unreachable_url">Der Sender ist nicht erreichbar.</string>
     <string name="rate">Bewertung abgeben</string>
     <string name="rate_summary">Über eine Bewertung der App würden wir uns freuen.</string>

res/values/strings.xml

@@ -316,6 +316,7 @@ OR
     <string name="radio_stream_require_wifi">require WiFi connection</string>
     <string name="radio_stream_require_wifi_desc">If on, alarms will play web radio streams only with an established WiFi connection.</string>
     <string name="radio_stream_search">Search</string>
+    <string name="radio_stream_unreachable_server">The Server is not reachable.</string>
     <string name="radio_stream_unreachable_url">The URL is not reachable.</string>
     <string name="reactivate_on_ambient_light_value">Illuminance threshold</string>
     <string name="reactivate_on_ambient_light_value_summary">The screen is reactivated if the threshold value of illuminance is exceeded.</string>

src/com/firebirdberlin/nightdream/ui/RadioStreamDialog.java

@@ -1,7 +1,9 @@
 package com.firebirdberlin.nightdream.ui;
 
 
+import android.app.Activity;
 import android.content.Context;
+import android.content.ContextWrapper;
 import android.content.res.Resources;
 import android.graphics.Color;
 import android.graphics.drawable.GradientDrawable;
@@ -19,6 +21,7 @@
 import android.widget.ListView;
 import android.widget.Spinner;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import androidx.core.widget.ContentLoadingProgressBar;
 
@@ -28,6 +31,7 @@
 import com.firebirdberlin.radiostreamapi.StationRequestTask;
 import com.firebirdberlin.radiostreamapi.models.Country;
 import com.firebirdberlin.radiostreamapi.models.RadioStation;
+import com.google.android.material.snackbar.Snackbar;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -196,6 +200,7 @@ public void onRequestFinished(List<RadioStation> stations) {
 
     @Override
     public void onCountryRequestFinished(List<Country> countries) {
+        Log.d(TAG,"onCountryRequestFinished()");
         // sort countries alphabetically
         Collections.sort(countries, (lhs, rhs) -> {
             if (lhs.name == null) {
@@ -207,6 +212,16 @@ public void onCountryRequestFinished(List<Country> countries) {
             return lhs.name.compareTo(rhs.name);
         });
 
+        if (countries.size() == 0) {
+            Activity activity = (Activity) ((ContextWrapper) context).getBaseContext();
+            Snackbar snackbarCountriesError = Snackbar
+                    .make((View) activity.findViewById(android.R.id.content), R.string.radio_stream_unreachable_server, Snackbar.LENGTH_LONG);
+            snackbarCountriesError.setTextColor(context.getResources().getColor(R.color.material_red));
+            snackbarCountriesError.show();
+
+            //Toast.makeText(context, R.string.radio_stream_unreachable_server, Toast.LENGTH_LONG).show();
+        }
+
         updateCountryNameToCodeMap(countries);
         updateCountrySpinner(countries, preferredCountry);
     }

src/com/firebirdberlin/radiostreamapi/RadioBrowserApi.java

@@ -41,7 +41,9 @@ public class RadioBrowserApi {
     private static int CONNECT_TIMEOUT = 10000;
 
     private static String getRandomServer() {
+        Log.d(TAG, "getRandomServer()");
         List<String> servers = new ArrayList<>();
+
         try {
             // add all round robin servers one by one to select them separately
             InetAddress[] list = InetAddress.getAllByName("all.api.radio-browser.info");
@@ -51,7 +53,13 @@ private static String getRandomServer() {
         } catch (UnknownHostException e) {
             e.printStackTrace();
         }
-        return servers.get(new Random().nextInt(servers.size()));
+
+        if (servers.size() > 0) {
+            return servers.get(new Random().nextInt(servers.size()));
+        }
+        else {
+            return "";
+        }
     }
 
     public static List<RadioStation> fetchStations(String queryString, String countryCode) {
@@ -144,6 +152,7 @@ private static String getCountriesPath() {
     }
 
     private static Uri.Builder getPathBuilder(String endpoint) {
+        Log.d(TAG, "getPathBuilder()");
         String server = getRandomServer();
         Log.d(TAG, server);
         return Uri.parse("https://" + server).buildUpon()