How to use a edit box on a GUI

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Amanda
Amanda on 1 Dec 2022
Commented: Amanda on 1 Dec 2022
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
  2 Comments
Amanda
Amanda on 1 Dec 2022
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

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Accepted Answer

Kevin Holly
Kevin Holly on 1 Dec 2022
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)';
  1 Comment
Amanda
Amanda on 1 Dec 2022
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

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