>如果要為整個圖形設置純色背景顏色,則執行此操作需要

a documented way,例如：

% When creating a new uifigure:

fig = uifigure('Color',[R G B])

% if the uifigure already exists:

fig.Color = [R G B];

>如果你想改變一些地區的背景顏色,你可以添加一個沒有標題或邊框的uipanel(uipanel(…,’BorderType’,’none’,’Title’,”,’BackgroundColor’, [RGB])).

>如果要將圖像設置為整個圖形的背景：

function q41602238a

%% Turn off some warnings:

warning off Matlab:structOnObject

warning off Matlab:HandleGraphics:ObsoletedProperty:JavaFrame

%% 0. Create a uifigure:

app = uifigure();

%% 1. Get a handle to the webwindow:

while true

try

win = struct(struct(app).Controller).Container.CEF;

break

catch

pause(0.1); % Give the figure (webpage) some more time to load

end

end

%% 2. Find the data_tag of the DOM element we want to edit:

data_tag = char(struct(app).Controller.ProxyView.PeerNode.getId);

%% 3. Manipulate the DOM via a JS command

while true

try

win.executeJS(['dojo.style(dojo.query("[data-tag^=''' data_tag ''']")[0],"background-image","url(https://upload.wikimedia.org/wikipedia/commons/8/80/Wikipedia-logo-v2.svg")']);

break

catch

pause(0.1); % Maybe JS is still not ready.

end

end

結果：

>如果要將圖像設置為某個區域的背景：

function q41602238b

%% Turn off some warnings:

warning off Matlab:structOnObject

warning off Matlab:HandleGraphics:ObsoletedProperty:JavaFrame

%% 0. Create a some element:

app = uifigure();

pnl = uipanel(app);

%% 1. Get a handle to the webwindow:

while true

try

win = struct(struct(app).Controller).Container.CEF;

% disp(win.URL);

break

catch

pause(0.1); % Give the figure (webpage) some more time to load

end

end

%% 2. Find the id of the DOM element we want to edit:

data_tag = char(struct(pnl).Controller.ProxyView.PeerNode.getId);

widgetId = win.executeJS(['dojo.getAttr(dojo.query("[data-tag^=''' data_tag ''']")[0],"widgetid")']);

%% 3. Manipulate the DOM via a JS command

dojo_style_prefix = ['dojo.style(dojo.query("#' widgetId(2:end-1) '")[0],'];

while true

try

win.executeJS([dojo_style_prefix '"background-image","url(https://upload.wikimedia.org/wikipedia/commons/8/80/Wikipedia-logo-v2.svg")']);

break

catch

pause(0.1); % Maybe JS is still not ready.

end

end

結果：

筆記：

>最后兩個示例基于這兩個帖子：1,2,操作原理是在某些所需UI元素的樣式屬性中添加background-image：“…”條目(恰好是HTML DIV).

>可以在this GitHub存儲庫中找到用于編程操作App Designer圖形的工具.>示例圖像恰好是.svg,這很有趣,因為我們可以以這種格式導出“常規”MATLAB數字,然后將它們用作uifigure的背景:)

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