Wait for rotary encoder button to be pushed to exit COMMAND

[B1ackt34]

Hello, first i want to thank you for this very good library !

I'm working on a project with several commands.

One command needs to hide menu (ok), execute a command and wait until the user click the button of the encoder.
I've searched in other discussions but i can't find any command to use.
I guess i need to do a WHILE ... function waiting for the button to be pressed.
Does exist any command i can put there?

Thank you in advance.

[B1ackt34]

After doing a bit of research I answer myself.
You can use

encoder.push()

[kimbrussow]

does the encoder.push() help you get out of a do.....while loop?

[B1ackt34]

Yes, here's the code

void ConfigPortalVoid () {
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Configuration portal");
  lcd.setCursor(3, 1);
  lcd.print("is active at");
  lcd.setCursor(3, 2);
  if (WiFi.status() == WL_CONNECTED) {
    lcd.print(WiFi.localIP());
  } else {
    lcd.print(WiFi.softAPIP());
  }
  lcd.setCursor(0, 3);
  lcd.print("Press button to exit");
  delay(500);
  Serial.println("Button Pressed, Starting Portal");
  wifiManager.startWebPortal();
  do {
  Serial.println("portal running");
  wifiManager.process();
  } while (encoder.push() == 0);
  Serial.println("pulsante premuto");
  wifiManager.stopWebPortal();
  }

[kimbrussow]

Thanks for the info and pointing to the right area. I am running a led light strip that uses a lot of delays. I added my own delay to use your thoughts:
bool ntDelay(int period)
{
bool retValue = true;
time_target = millis()+ period ;
do{
if (encoder.rotate()!= 0)
{
retValue = false;
break;}
if (encoder.push()!= 0)
{
retValue = false;
break;}
}while(millis() <= time_target) ;
return retValue;
}
void HappyProgram
{
in the do loop I changed the delays:

do { happy stuff here
blah blah
if (!ntDelay(100))
{goto bailout;}

}while (ntDelay(1)== true); // << not really needed

bailout:
Serial.println("out of loop");
} // end of HappyProgram

works great thank you!!

[B1ackt34]

Happy to have been of help !