matlab gui - 同样的gui屏幕(matlab gui - callling the same gui screen)

 我正在尝试用matlab做GUI，用户输入点作为输入和连接。 
 
 我有5个matlab文件 - screen1.m，screen2.m，screen3.m，screen4.m，globalParams.m 
 
 在globalParams我有全局参数，所以我可以使用它们从屏幕GUI到屏幕GUI。 在screen1中，用户输入节点数（例如5）。 当他按下Next按钮时，回调函数调用“ screen2(); ”。 在screen2.m中，用户输入（x，y）coordiante，当他按下Next按钮时，回调函数调用“ screen3(); ”。 
 
 现在我要求他填充Node i和Node j之间的连接（他需要填充节点i和j的数字）。 如果只有1个连接，他将按下Finish按钮，回调函数将调用“ screen4();并且everthing是好的。 否则（有超过1个连接）他按下Next按钮，回调函数调用” screen3(); “。所以，当我们有多个连接时，我有问题再次调用screen3 .. 
 
 当我打电话给下一个屏幕关闭最后一个屏幕时，还有什么方法吗？ 因为当我们找到一种一次又一次调用screen3的方法时，会有很多GUI打开，它会让用户感到困惑和烦恼。 
 
 一些代码： 
 
 在screen1中，下一个按钮： 
 
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
screen2();
 
 在screen2中，下一个按钮： 
 
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

screen3();
 
 在screen3中，下一个按钮，然后是完成按钮： 
 
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
screen3();

% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
screen4();
 
 在screen3中我如何使用2个节点之间的连接： 
 
function edit2_Callback(hObject, eventdata, handles)
% hObject    handle to edit2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit2 as text
%        str2double(get(hObject,'String')) returns contents of edit2 as a double

global hopsMatrix;
i = str2num(get(handles.edit2, 'string'));
j = str2num(get(handles.edit1, 'string'));
hopsMatrix(i,j) = 1;

I'm trying to do in matlab, GUI that the the user enters points as input and connection between them.
 
I have 5 matlab files - screen1.m, screen2.m, screen3.m, screen4.m, globalParams.m
 
in globalParams I have global params so I can use them from screen GUI to screen GUI. in screen1 the user enters the number of nodes(for example 5). when he press the Next button the callback function calls "screen2();". in screen2.m the user enters the (x,y) coordiante and when he press the Next button the callback function calls "screen3();".
 
Now I'm asking him to fill the connection between Node i to Node j.(he need to fill the numbers of node i and j). if there is only 1 connection he will press the Finish button, and the callback function will call "screen4(); and everthing is good. Else(there is more then 1 connection) he press the Next button and the callback function calls "screen3();". So when we have more than 1 connection I have problem calling screen3 again...
 
Also is there some way when I'm calling the next screen to close the last screen? because when we find a way to call screen3 again and again, there will be a lot of GUI open and it can confuse and annoy the user.
 
some code:
 
in screen1, the next button:
 
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
screen2();
 
in screen2, the next button:
 
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

screen3();
 
in screen3, the next button and then the finish button:
 
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
screen3();

% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
screen4();
 
in screen3 how I'm using the connection between 2 nodes:
 
function edit2_Callback(hObject, eventdata, handles)
% hObject    handle to edit2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit2 as text
%        str2double(get(hObject,'String')) returns contents of edit2 as a double

global hopsMatrix;
i = str2num(get(handles.edit2, 'string'));
j = str2num(get(handles.edit1, 'string'));
hopsMatrix(i,j) = 1;

原文：https://stackoverflow.com/questions/21779807