下面列出了javax.swing.JLayer#setLayerEventMask ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
@Override
public void installUI(JComponent c) {
super.installUI(c);
JLayer<?> jlayer = (JLayer<?>)c;
jlayer.setLayerEventMask(
AWTEvent.MOUSE_EVENT_MASK |
AWTEvent.MOUSE_MOTION_EVENT_MASK
);
}
@Override
public void uninstallUI(JComponent c) {
JLayer<?> jlayer = (JLayer<?>)c;
jlayer.setLayerEventMask(0);
super.uninstallUI(c);
}