How to use a edit box on a GUI

I am trying to use a edit box to be able to put a number in the box and then use a push button and it will take that number and use it. I am doing this for a robot maze and im trying to write a number of steps in the edit box and the when i push the button it takes that many steps in the maze. I'm suppose to use the a function that has already been created 'walk' to do this but i have no idea how to.

function steps_made_successfully = walk(number_of_steps)
steps_made_successfully = 0;
for i=1:number_of_steps
    if is_clear()steps_made_successfully = steps_made_successfully + 1;
       move_forward();
   else
       break;
   end
end
end

[Benjamin Thompson]

Is this a GUIDE GUI or AppDesigner GUI? You may want to attach your current work for the Community to reference.

[Amanda]

createRandomMaze

figure;
first_button = uicontrol('style', 'pushbutton');
set(first_button, 'units', 'normalized', 'position', [0.2,0.7, 0.2, 0.2])
set(first_button, 'string', 'turn left')
set(first_button, 'callback', @turnLeft)

second_button = uicontrol('style', 'pushbutton');
set(second_button, 'units', 'normalized', 'position', [0.4, 0.7, 0.2, 0.2])
set(second_button, 'string', 'step')
set(second_button, 'callback', @step)

third_button = uicontrol('style', 'pushbutton');
set(third_button, 'units', 'normalized', 'position', [0.6, 0.7, 0.2, 0.2])
set(third_button, 'string', 'turn right')
set(third_button, 'callback', @turnRight)

fourth_button = uicontrol('style', 'pushbutton');
set(fourth_button, 'units', 'normalized', 'position', [0.2, 0.5, 0.2, 0.2])
set(fourth_button, 'string', 'left')
set(fourth_button, 'callback', @stepLeft)

fifth_button = uicontrol('style', 'pushbutton');
set(fifth_button, 'units', 'normalized', 'position', [0.4, 0.5, 0.2, 0.2])
set(fifth_button, 'string', 'back')
set(fifth_button, 'callback', @stepBack)

sixth_button = uicontrol('style', 'pushbutton');
set(sixth_button, 'units', 'normalized', 'position', [0.6, 0.5, 0.2, 0.2])
set(sixth_button, 'string', 'right')
set(sixth_button, 'callback',@stepRight)

seventh_button = uicontrol ('style','checkbox');
set(seventh_button, 'units', 'normalized', 'position', [0.2, 0.3, 0.2, 0.2])
set(seventh_button, 'string', 'History')
set(seventh_button, 'callback', @toggleHistory)

eighth_button = uicontrol ('style', 'edit');
set(eighth_button, 'units', 'normalized', 'position', [0.4, 0.37, 0.2, 0.05])
set(eighth_button, 'string', '2')

ninth_button = uicontrol('style','pushbutton');
set(ninth_button, 'units', 'normalized', 'position', [0.6, 0.3, 0.2, 0.2])
set(ninth_button, 'string', 'Run!')
set(ninth_button, 'callback', @Run)


function toggleHistory(sender, eventdata)
if sender.Value == 1
    disp showHistory
else 
    disp hideHistory
end 
end 

 function robotRun(sender, eventdata)
        step_input = get('edit', 'string');
        if ~strcmp(step_input, ' ');
            number_of_steps = str2num(step_input);
            walk(number_of_steps);
        end
    end
function turnRight
    turnLeft();
    turnLeft();
    turnLeft();
end 

function stepLeft
turnLeft();
step(); 
turnRight(); 
end 

function stepRight
turnRight();
step();
turnRight();
end 

function stepBack 
turnLeft();
turnLeft(); 
step();
turnRight();
end 

function turnLeft
turnRight(); 
turnRight(); 
turnRight(); 
step
end 

function step 
step(); 
end 


function steps_made_successfully = walk(number_of_steps)
steps_made_successfully = 0;
for i=1:number_of_steps
    if is_clear()steps_made_successfully = steps_made_successfully + 1;
       move_forward();
   else
       break;
   end
end
end

Answer 1

[Kevin Holly]

Add a callback to the ninth_button that reads the value in the 'eighth_button' edit field and places it as an input to the walk function.

ninth_button.Callback = 'number_of_steps = str2num(eighth_button.String); walk(number_of_steps)';

[Amanda]

would you also know how to fix my toggle history so when its clicked it shows when the robot moves and when its unclicked it doesnt