android: Show the actual error description in the notification

src/frontends/android/app/src/main/java/org/strongswan/android/logic/CharonVpnService.java

@@ -402,9 +402,10 @@ public class CharonVpnService extends VpnService implements Runnable, VpnStateSe
 		int s = R.string.state_disabled;
 		if (error != ErrorState.NO_ERROR)
 		{
-			s = R.string.state_error;
+			s = mService.getErrorText();
 			builder.setSmallIcon(R.drawable.ic_notification_warning);
 			builder.setColor(ContextCompat.getColor(this, R.color.error_text));
+			builder.setContentText(getString(R.string.tap_for_details));
 		}
 		else
 		{
@@ -438,7 +439,10 @@ public class CharonVpnService extends VpnService implements Runnable, VpnStateSe
 																  PendingIntent.FLAG_UPDATE_CURRENT);
 				builder.addAction(R.drawable.ic_notification_disconnect, getString(R.string.disconnect), pending);
 			}
-			builder.setContentText(name);
+			if (error == ErrorState.NO_ERROR)
+			{
+				builder.setContentText(name);
+			}
 			builder.setPublicVersion(buildNotification(true));
 		}
 

src/frontends/android/app/src/main/java/org/strongswan/android/logic/VpnStateService.java

@@ -22,6 +22,7 @@ import android.os.Binder;
 import android.os.Handler;
 import android.os.IBinder;
 
+import org.strongswan.android.R;
 import org.strongswan.android.data.VpnProfile;
 import org.strongswan.android.logic.imc.ImcState;
 import org.strongswan.android.logic.imc.RemediationInstruction;
@@ -166,6 +167,35 @@ public class VpnStateService extends Service
 		return mError;
 	}
 
+	/**
+	 * Get a description of the current error, if any.
+	 *
+	 * @return error description text id
+	 */
+	public int getErrorText()
+	{
+		switch (mError)
+		{
+			case AUTH_FAILED:
+				if (mImcState == ImcState.BLOCK)
+				{
+					return R.string.error_assessment_failed;
+				}
+				else
+				{
+					return R.string.error_auth_failed;
+				}
+			case PEER_AUTH_FAILED:
+				return R.string.error_peer_auth_failed;
+			case LOOKUP_FAILED:
+				return R.string.error_lookup_failed;
+			case UNREACHABLE:
+				return R.string.error_unreachable;
+			default:
+				return R.string.error_generic;
+		}
+	}
+
 	/**
 	 * Get the current IMC state, if any.
 	 *

src/frontends/android/app/src/main/java/org/strongswan/android/ui/VpnStateFragment.java

@@ -263,31 +263,7 @@ public class VpnStateFragment extends Fragment implements VpnStateListener
 		enableActionButton(null);
 		mStateView.setText(R.string.state_error);
 		mStateView.setTextColor(mColorStateError);
-		switch (error)
-		{
-			case AUTH_FAILED:
-				if (imcState == ImcState.BLOCK)
-				{
-					showError(R.string.error_assessment_failed);
-				}
-				else
-				{
-					showError(R.string.error_auth_failed);
-				}
-				break;
-			case PEER_AUTH_FAILED:
-				showError(R.string.error_peer_auth_failed);
-				break;
-			case LOOKUP_FAILED:
-				showError(R.string.error_lookup_failed);
-				break;
-			case UNREACHABLE:
-				showError(R.string.error_unreachable);
-				break;
-			default:
-				showError(R.string.error_generic);
-				break;
-		}
+		showError(mService.getErrorText());
 		return true;
 	}
 

src/frontends/android/app/src/main/res/values-de/strings.xml

@@ -31,6 +31,7 @@
     <string name="strongswan_shortcut">strongSwan-Verknüpfung</string>
     <string name="permanent_notification_name">VPN Verbindungsstatus</string>
     <string name="permanent_notification_description">Zeigt Informationen zum Verbindungsstatus der VPN Verbindung und dient als permanente Notification dazu, den VPN Dienst im Hintergrund am Laufen zu halten.</string>
+    <string name="tap_for_details">Antippen für Details.</string>
 
     <!-- Settings -->
     <string name="pref_title">Einstellungen</string>

src/frontends/android/app/src/main/res/values-pl/strings.xml

@@ -31,6 +31,7 @@
     <string name="strongswan_shortcut">Skrót strongSwan</string>
     <string name="permanent_notification_name">VPN connection state</string>
     <string name="permanent_notification_description">Provides information about the VPN connection state and serves as permanent notification to keep the VPN service running in the background.</string>
+    <string name="tap_for_details">Tap for details.</string>
 
     <!-- Settings -->
     <string name="pref_title">Settings</string>

src/frontends/android/app/src/main/res/values-ru/strings.xml

@@ -28,6 +28,7 @@
     <string name="strongswan_shortcut">Ссылка на strongSwan</string>
     <string name="permanent_notification_name">VPN connection state</string>
     <string name="permanent_notification_description">Provides information about the VPN connection state and serves as permanent notification to keep the VPN service running in the background.</string>
+    <string name="tap_for_details">Tap for details.</string>
 
     <!-- Settings -->
     <string name="pref_title">Settings</string>

src/frontends/android/app/src/main/res/values-ua/strings.xml

@@ -29,6 +29,7 @@
     <string name="strongswan_shortcut">strongSwan посилання</string>
     <string name="permanent_notification_name">VPN connection state</string>
     <string name="permanent_notification_description">Provides information about the VPN connection state and serves as permanent notification to keep the VPN service running in the background.</string>
+    <string name="tap_for_details">Tap for details.</string>
 
     <!-- Settings -->
     <string name="pref_title">Settings</string>

src/frontends/android/app/src/main/res/values-zh-rCN/strings.xml

@@ -28,6 +28,7 @@
     <string name="strongswan_shortcut">strongSwan快捷方式</string>
     <string name="permanent_notification_name">VPN connection state</string>
     <string name="permanent_notification_description">Provides information about the VPN connection state and serves as permanent notification to keep the VPN service running in the background.</string>
+    <string name="tap_for_details">Tap for details.</string>
 
     <!-- Settings -->
     <string name="pref_title">Settings</string>

src/frontends/android/app/src/main/res/values-zh-rTW/strings.xml

@@ -28,6 +28,7 @@
     <string name="strongswan_shortcut">strongSwan快速選單</string>
     <string name="permanent_notification_name">VPN connection state</string>
     <string name="permanent_notification_description">Provides information about the VPN connection state and serves as permanent notification to keep the VPN service running in the background.</string>
+    <string name="tap_for_details">Tap for details.</string>
 
     <!-- Settings -->
     <string name="pref_title">Settings</string>

src/frontends/android/app/src/main/res/values/strings.xml

@@ -31,6 +31,7 @@
     <string name="strongswan_shortcut">strongSwan shortcut</string>
     <string name="permanent_notification_name">VPN connection state</string>
     <string name="permanent_notification_description">Provides information about the VPN connection state and serves as permanent notification to keep the VPN service running in the background.</string>
+    <string name="tap_for_details">Tap for details.</string>
 
     <!-- Settings -->
     <string name="pref_title">Settings</string>