Hi GMabilleau, to close app2 from app3, you need to ensure that the handle to app2 is correctly passed and accessible within app3. Here is an example explaining how to do this :
In app1, declare a public property to store the handle of app2. When you create app3 from app1, pass the handle of app2 to app3:
classdef app1 < matlab.apps.AppBase
properties (Access = public)
UIFigure matlab.ui.Figure
Button1 matlab.ui.control.Button
Button2 matlab.ui.control.Button
app2handle
end
methods (Access = private)
% Button pushed function: Button1
function Button1Pushed(app, event)
app.app2handle = app2;
end
% Button pushed function: Button2
function Button2Pushed(app, event)
app3handle = app3;
app3handle.app2handle = app.app2handle;
end
end
% Component initialization
methods (Access = private)
% Create UIFigure and components
function createComponents(app)
% Create UIFigure
app.UIFigure = uifigure;
app.UIFigure.Position = [100 100 400 300];
app.UIFigure.Name = 'UI Figure';
% Create Button1
app.Button1 = uibutton(app.UIFigure, 'push');
app.Button1.Position = [100 200 100 22];
app.Button1.Text = 'Open App2';
app.Button1.ButtonPushedFcn = createCallbackFcn(app, @Button1Pushed, true);
% Create Button2
app.Button2 = uibutton(app.UIFigure, 'push');
app.Button2.Position = [100 150 100 22];
app.Button2.Text = 'Open App3';
app.Button2.ButtonPushedFcn = createCallbackFcn(app, @Button2Pushed, true);
end
end
% App initialization and construction
methods (Access = public)
% Construct app
function app = app1
% Create and configure components
createComponents(app)
end
end
end
In the button callback of app3, where you want to close both app3 and app2, use the handle to app2 that was passed from app1:
classdef app3 < matlab.apps.AppBase
properties (Access = public)
UIFigure matlab.ui.Figure
Button matlab.ui.control.Button
app2handle
end
methods (Access = private)
% Button pushed function: Button
function ButtonPushed(app, event)
% Your code execution here
% Close app2
if isvalid(app.app2handle) % Check if app2 is still valid
delete(app.app2handle);
end
% Close app3
delete(app);
end
end
% Component initialization
methods (Access = private)
% Create UIFigure and components
function createComponents(app)
% Create UIFigure
app.UIFigure = uifigure;
app.UIFigure.Position = [100 100 400 300];
app.UIFigure.Name = 'UI Figure';
% Create Button
app.Button = uibutton(app.UIFigure, 'push');
app.Button.Position = [150 150 100 22];
app.Button.Text = 'Execute and Close';
app.Button.ButtonPushedFcn = createCallbackFcn(app, @ButtonPushed, true);
end
end
% App initialization and construction
methods (Access = public)
% Construct app
function app = app3
% Create and configure components
createComponents(app)
end
end
end
Hope this helps!
