#534

WiFiManager.cpp

@@ -31,6 +31,10 @@ WiFiManagerParameter::WiFiManagerParameter(const char *custom) {
   _customHTML     = custom;
 }
 
+WiFiManagerParameter::WiFiManagerParameter(const char *id, const char *placeholder) {
+  init(id, placeholder, "", 0, "", WFM_LABEL_BEFORE);
+}
+
 WiFiManagerParameter::WiFiManagerParameter(const char *id, const char *placeholder, const char *defaultValue, int length) {
   init(id, placeholder, defaultValue, length, "", WFM_LABEL_BEFORE);
 }
@@ -46,17 +50,9 @@ WiFiManagerParameter::WiFiManagerParameter(const char *id, const char *placehold
 void WiFiManagerParameter::init(const char *id, const char *placeholder, const char *defaultValue, int length, const char *custom, int labelPlacement) {
   _id             = id;
   _placeholder    = placeholder;
-  _length         = length;
   _labelPlacement = labelPlacement;
-  _value          = new char[length + 1];
-  for (int i = 0; i < length + 1; i++) {
-    _value[i] = 0;
-  }
-  if (defaultValue != NULL) {
-    strncpy(_value, defaultValue, length + 1); // length+1 due to null terminated string
-  }
-
-  _customHTML = custom;
+  _customHTML     = custom;
+  setValue(defaultValue,length);
 }
 
 WiFiManagerParameter::~WiFiManagerParameter() {
@@ -65,6 +61,16 @@ WiFiManagerParameter::~WiFiManagerParameter() {
   }
 }
 
+void WiFiManagerParameter::setValue(const char *defaultValue, int length) {
+  _length         = length;
+  _value          = new char[length + 1];
+  for (int i = 0; i < length + 1; i++) {
+    _value[i] = 0;
+  }
+  if (defaultValue != NULL) {
+    strncpy(_value, defaultValue, length + 1); // length+1 due to null terminated string
+  }
+}
 const char* WiFiManagerParameter::getValue() {
   return _value;
 }

WiFiManager.h

@@ -67,6 +67,7 @@ class WiFiManagerParameter {
         @id is used for HTTP queries and must not contain spaces nor other special characters
     */
     WiFiManagerParameter(const char *custom);
+    WiFiManagerParameter(const char *id, const char *placeholder);
     WiFiManagerParameter(const char *id, const char *placeholder, const char *defaultValue, int length);
     WiFiManagerParameter(const char *id, const char *placeholder, const char *defaultValue, int length, const char *custom);
     WiFiManagerParameter(const char *id, const char *placeholder, const char *defaultValue, int length, const char *custom, int labelPlacement);
@@ -78,6 +79,7 @@ class WiFiManagerParameter {
     int         getValueLength();
     int         getLabelPlacement();
     const char *getCustomHTML();
+    void        setValue(const char *defaultValue, int length);
   private:
     const char *_id;
     const char *_placeholder;

examples/AutoConnectWithFSParameters/AutoConnectWithFSParameters.ino

@@ -1,6 +1,7 @@
 #include <FS.h>          // this needs to be first, or it all crashes and burns...
 #include <WiFiManager.h> // https://github.com/tzapu/WiFiManager
 #include <ArduinoJson.h> // https://github.com/bblanchon/ArduinoJson
+#include <spiffs.h>
 
 //define your default values here, if there are different values in config.json, they are overwritten.
 char mqtt_server[40];
@@ -68,7 +69,10 @@ void setup() {
   // id/name placeholder/prompt default length
   WiFiManagerParameter custom_mqtt_server("server", "mqtt server", mqtt_server, 40);
   WiFiManagerParameter custom_mqtt_port("port", "mqtt port", mqtt_port, 6);
-  WiFiManagerParameter custom_blynk_token("blynk", "blynk token", blynk_token, 32);
+  // WiFiManagerParameter custom_blynk_token("blynk", "blynk token", "", 0);
+
+  WiFiManagerParameter custom_blynk_token("blynk", "blynk token");
+  custom_blynk_token.setValue("setvalue override",32);
 
   //WiFiManager
   //Local intialization. Once its business is done, there is no need to keep it around