e858. 将键盘键和事件绑定

Posted 2021-01-04 borter

This example creates a number of keystrokes and adds them to the input map of a component. When a keystroke is added to an input map, an action name must be supplied. This action is invoked when the keystroke is pressed while the component has the focus.

    // Create some keystrokes and bind them all to the same action
    component.getInputMap().put(KeyStroke.getKeyStroke("F2"), "actionName");
    component.getInputMap().put(KeyStroke.getKeyStroke("control A"), "actionName");
    component.getInputMap().put(KeyStroke.getKeyStroke("shift F2"), "actionName");
    component.getInputMap().put(KeyStroke.getKeyStroke(‘(‘), "actionName");
    component.getInputMap().put(KeyStroke.getKeyStroke("button3 F"), "actionName");
    component.getInputMap().put(KeyStroke.getKeyStroke("typed x"), "actionName");
    component.getInputMap().put(KeyStroke.getKeyStroke("released DELETE"), "actionName");
    component.getInputMap().put(KeyStroke.getKeyStroke("shift UP"), "actionName");
    
    // Add the action to the component
    component.getActionMap().put("actionName",
        new AbstractAction("actionName") {
            public void actionPerformed(ActionEvent evt) {
                process(evt);
            }
        }
    );

 

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