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| 17. 9. 9. 选择一个单选按钮 |
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If you need to select a button programmatically, use the following method: |
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public void setSelection(boolean selected)
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This method is applicable for checkbox buttons, radio buttons, and toggle buttons only. It has no effect on push buttons and arrow buttons. |
To check the selection status of a button, use the following method: |
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public boolean getSelection()
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The above method is only applicable for check buttons, radio buttons, and toggle buttons. It always returns false if the button is a push button or an arrow button. |
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import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class RadioButtonSelection {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new RowLayout());
for (int i = 0; i < 4; i++) {
Button button = new Button(shell, SWT.RADIO);
button.setText("Button " + i);
button.setSelection(true);
}
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}
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