Text Input Card
An input component that collects and stores text-based user input from the dashboard. Provides a text input field suitable for gathering various string data like WiFi credentials, user IDs, and other configurable information.
Initializer
/*
Text Input Card
Valid Arguments: (ESPDash dashboard, Card Type, const char* name)
*/
Card card1(&dashboard, TEXT_INPUT_CARD, "User Email");Callback
Text Input Card requires a callback function which will be called when we receive a input from our dashboard. In setup block, we will be calling our attachCallback function and provide a lambda (callback) function with a const char* (character array) argument.
You need to call the update function and sendUpdates immediately once you receive the value in callback. Otherwise user input will not be registered on dashboard and it will keep the card stuck in ‘waiting’ phase.
/*
We provide our attachCallback with a lambda function to handle incomming data
*/
card1.attachCallback([&](const char* value){
Serial.println("[Card1] Text Input Callback Triggered: "+String(value));
card1.update(value);
dashboard.sendUpdates();
});Updater
card1.update(const char* value);card1.update(String value);Reference
This is a reference sketch showing positions for intializer, callback and updater.
...
/* Week selector card initializer */
Card text(&dashboard, TEXT_INPUT_CARD, "Test Email");
void setup() {
...
/* Week selector card callback */
text.attachCallback([&](const char* value){
Serial.println("Text Input Callback Triggered: "+String(value));
/* Week selector card updater - you need to update the button with latest value upon firing of callback */
text.update(value);
/* Send update to dashboard */
dashboard.sendUpdates();
});
}
void loop() {
...
}