added ability of returning even if connection fails

added example that resets after configuration if connection is unsuccessful

WiFiManager.cpp

@@ -108,13 +108,13 @@ boolean WiFiManager::autoConnect(char const *apName, char const *apPassword) {
   DEBUG_WM(F("AutoConnect"));
 
   // read eeprom for ssid and pass
-  String ssid = getSSID();
-  String pass = getPassword();
+  //String ssid = getSSID();
+  //String pass = getPassword();
 
   // attempt to connect; should it fail, fall back to AP
   WiFi.mode(WIFI_STA);
 
-  if (connectWifi(ssid, pass) == WL_CONNECTED)   {
+  if (connectWifi("", "") == WL_CONNECTED)   {
     DEBUG_WM(F("IP Address:"));
     DEBUG_WM(WiFi.localIP());
     //connected
@@ -150,7 +150,8 @@ boolean  WiFiManager::startConfigPortal(char const *apName, char const *apPasswo
       connect = false;
       delay(2000);
       DEBUG_WM(F("Connecting to new AP"));
-      // using user-provided  _ssid, _pass in place of system-stored ssid amd pass
+      
+      // using user-provided  _ssid, _pass in place of system-stored ssid and pass
       if (connectWifi(_ssid, _pass) != WL_CONNECTED) {
         DEBUG_WM(F("Failed to connect."));
       } else {
@@ -163,7 +164,16 @@ boolean  WiFiManager::startConfigPortal(char const *apName, char const *apPasswo
         }
         break;
       }
-
+      
+      if(_shouldBreakAfterConfig) {
+        //flag set to exit after config after trying to connect
+        //notify that configuration has changed and any optional parameters should be saved
+        if ( _savecallback != NULL) {
+          //todo: check if any custom parameters actually exist, and check if they really changed maybe
+          _savecallback();
+        }
+        break;
+      }
     }
     yield();
   }
@@ -185,8 +195,13 @@ int WiFiManager::connectWifi(String ssid, String pass) {
     DEBUG_WM(WiFi.localIP());
   }
 
-
-  WiFi.begin(ssid.c_str(), pass.c_str());
+  if(ssid !="" && pass != "") {
+    WiFi.begin(ssid.c_str(), pass.c_str());
+  } else {
+    DEBUG_WM("Using last saved values, should be faster");
+    WiFi.begin();
+  }
+  
   int connRes = WiFi.waitForConnectResult();
   DEBUG_WM ("Connection result: ");
   DEBUG_WM ( connRes );
@@ -285,6 +300,9 @@ void WiFiManager::setMinimumSignalQuality(int quality) {
   _minimumQuality = quality;
 }
 
+void WiFiManager::setBreakAfterConfig(boolean shouldBreak) {
+  _shouldBreakAfterConfig = shouldBreak;
+}
 
 /** Handle root or redirect to captive portal */
 void WiFiManager::handleRoot() {

WiFiManager.h

@@ -92,6 +92,8 @@ class WiFiManager
     void          setSaveConfigCallback( void (*func)(void) );
     //adds a custom parameter
     void          addParameter(WiFiManagerParameter *p);
+    //if this is set, it will exit after config, even if connection is unsucessful.
+    void          setBreakAfterConfig(boolean shouldBreak);
 
   private:
     std::unique_ptr<DNSServer>        dnsServer;
@@ -119,6 +121,7 @@ class WiFiManager
     IPAddress     _sta_static_sn;
     int           _paramsCount = 0;
     int           _minimumQuality = -1;
+    boolean       _shouldBreakAfterConfig = false;
 
     //String        getEEPROMString(int start, int len);
     //void          setEEPROMString(int start, int len, String string);

examples/AutoConnectWithReset/AutoConnectWithReset.ino

@@ -0,0 +1,49 @@
+#include <FS.h>                   //this needs to be first, or it all crashes and burns...
+
+#include <ESP8266WiFi.h>          //https://github.com/esp8266/Arduino
+
+//needed for library
+#include <DNSServer.h>
+#include <ESP8266WebServer.h>
+#include <WiFiManager.h>          //https://github.com/tzapu/WiFiManager
+
+void setup() {
+  // put your setup code here, to run once:
+  Serial.begin(115200);
+  Serial.println();
+
+  //WiFiManager
+  //Local intialization. Once its business is done, there is no need to keep it around
+  WiFiManager wifiManager;
+
+  //exit after config instead of connecting
+  wifiManager.setBreakAfterConfig(true);
+
+  //reset settings - for testing
+  //wifiManager.resetSettings();
+
+
+  //tries to connect to last known settings
+  //if it does not connect it starts an access point with the specified name
+  //here  "AutoConnectAP" with password "password"
+  //and goes into a blocking loop awaiting configuration
+  if (!wifiManager.autoConnect("AutoConnectAP", "password")) {
+    Serial.println("failed to connect, we should reset as see if it connects");
+    delay(3000);
+    ESP.reset();
+    delay(5000);
+  }
+
+  //if you get here you have connected to the WiFi
+  Serial.println("connected...yeey :)");
+
+
+  Serial.println("local ip");
+  Serial.println(WiFi.localIP());
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+
+
+}

keywords.txt

@@ -7,6 +7,7 @@
 #######################################
 
 WiFiManager	KEYWORD1
+WiFiManagerParameter KEYWORD1
 
 
 #######################################
@@ -15,12 +16,22 @@ WiFiManager	KEYWORD1
 autoConnect	KEYWORD2
 getSSID	KEYWORD2
 getPassword	KEYWORD2
+getConfigPortalSSID KEYWORD2
 resetSettings	KEYWORD2
 urldecode	KEYWORD2
 setTimeout	KEYWORD2
 setDebugOutput	KEYWORD2
-setAPConfig	KEYWORD2
+setMinimumSignalQuality KEYWORD2
+setAPStaticIPConfig	KEYWORD2
+setSTAStaticIPConfig KEYWORD2
 setAPCallback	KEYWORD2
+setSaveConfigCallback KEYWORD2
+addParameter KEYWORD2
+
+getID KEYWORD2
+getValue KEYWORD2
+getPlaceholder KEYWORD2
+getValueLength KEYWORD2
 
 #######################################
 # Constants (LITERAL1)