Java : set a Component on top of another
I am writing a program in java. I have a main JPanel that has two JPanel and one Canvas added on it. I aim to resize the Canvas while running the program. When I maximi开发者_如何学Czed the Canvas i want it to be always on top of the other component.
How can I set this property for my Canvas?
You could replace your main JPanel with a JLayeredPanel. A layered panel will let you specify that some child components should be layered above other child components.
I.e.:
JLayeredPane pane = new JLayeredPane();
JLabel ontop = new JLabel("On top");
JLabel behind = new JLabel("Behind");
pane.add(ontop, 2, 0);
pane.add(behind, 1, 0);
Make your main JPanel a JLayeredPane
Then you can set the layer of the other components with setLayer(Component c, int layer)
thus allowing them to overlap.
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