Creating a delete button in App Designer
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Hello!
I'm relatively new to MATLAB and programming. I'm making a simulation in App Designer to mimic a keypad interface.
I have buttons from 0-9, a clear all button, a delete button an output button that displays the text inputted and takes you to another app window when the output button is pushed.
What should I write in the delete button callback so that when the delete button is pushed it deletes the last character in the output display?
Here is what I have so far...
% Button pushed function: 1Button
function 1ButtonPushed(app,event)
str = strcat(app.OutButton.Text, '1');
app.OutButton.Text = string(str);
end
% Button pushed function: 2Button
function 2ButtonPushed(app, event)
str = strcat(app.OutButton.Text, '2');
app.OutButton.Text = string(str);
end
% Button pushed function: 3Button
function 3ButtonPushed(app, event)
str = strcat(app.OutButton.Text, '3');
app.OutButton.Text = string(str);
end
% And so on for the rest until 0...
% Button pushed function: ClearButton
function ClearButtonPushed(app, event)
app.OutButton.Text = '';
end
% Button pushed function: DelButton
function DelButtonPushed(app, event)
???
end
% Button pushed function: OutButton
function OutButtonPushed(app,event)
app2
closereq;
end
采纳的回答
Geoff Hayes
2019-4-17
Leah - your delete button callback could look something like
function DelButtonPushed(app, event)
app.OutButton.Text = app.OutButton.Text(1:end-1);
end
I'm assuming that app.OutButton.Text is just a string that we can then remove the last character from.
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