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Demonstrates the unlayout API in Codename One layout animations
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| Form hi = new Form("Layout Animations", new BoxLayout(BoxLayout.Y_AXIS)); | |
| Button fall = new Button("Fall"); | |
| fall.addActionListener((e) -> { | |
| if(hi.getContentPane().getComponentCount() == 1) { | |
| fall.setText("Rise"); | |
| for(int iter = 0 ; iter < 10 ; iter++) { | |
| Label b = new Label ("Label " + iter); | |
| b.setWidth(fall.getWidth()); | |
| b.setHeight(fall.getHeight()); | |
| b.setY(-fall.getHeight()); | |
| hi.add(b); | |
| } | |
| hi.getContentPane().animateLayout(20000); | |
| } else { | |
| fall.setText("Fall"); | |
| for(int iter = 1 ; iter < hi.getContentPane().getComponentCount() ; iter++) { | |
| Component c = hi.getContentPane().getComponentAt(iter); | |
| c.setY(-fall.getHeight()); | |
| } | |
| hi.getContentPane().animateUnlayoutAndWait(20000, 255); | |
| hi.removeAll(); | |
| hi.add(fall); | |
| hi.revalidate(); | |
| // the following lines demonstrate the async version of the last few lines above | |
| /*hi.getContentPane().animateUnlayout(20000, 255, () -> { | |
| hi.removeAll(); | |
| hi.add(fall); | |
| hi.revalidate(); | |
| });*/ | |
| } | |
| }); | |
| hi.add(fall); |
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Sample usage code for animateUnlayout
From the Codename One project