Question

java 如何监听jframe窗口最大化以及恢复窗

Answer 1

public class WinFrame extends JFrame {
public WinFrame(){
this.setName("Window 窗口状态");
this.setSize(300,300);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addWindowStateListener(new WindowStateListener () {
public void windowStateChanged(WindowEvent state) {

if(state.getNewState() == 1 || state.getNewState() == 7) {
System.out.println("窗口最小化");
}else if(state.getNewState() == 0) {
System.out.println("窗口恢复到初始状态");
}else if(state.getNewState() == 6) {
System.out.println("窗口最大化");
}
}
});
this.setVisible(true);
}
public static void main(String[] args) {
new WinFrame();
}

Answer 2

JFrame frame = new JFrame();
frame.addWindowStateListener(new WindowStateListener(){
    @Override
    public void windowStateChanged(WindowEvent e) {
        if(e.getOldState() != e.getNewState()){
            switch (e.getNewState()) {
            case Frame.MAXIMIZED_VERT:
                // 最大化 
                break;
            case Frame.ICONIFIED:
                // 最小化 
                break;
            case Frame.NORMAL:
                // 恢复 
                break;
            default:
                break;
            }
        }
    }
});