Java：GUI-AWT(上)
阿新 • • 發佈：2020-08-15
目錄
學習資料
b站狂神說:https://www.bilibili.com/video/BV1DJ411B75F
第一個視窗Farme類
package com.zy7y.gui; import java.awt.*; /** * @ProjectName: JavaSE * @PackageName: com.zy7y.gui * @Author: zy7y * @Date: 2020/8/15 下午5:35 * @Description: 建立第一個視窗 */ public class TestFrame { public static void main(String[] args) { // 例項化視窗物件 Frame frame = new Frame("第一個Java影象介面視窗"); // 設定視窗可見性 frame.setVisible(true); // 設定視窗大小 frame.setSize(200,300); // 設定背景色 frame.setBackground(new Color(0x9797DC)); // 初始位置 frame.setLocation(200,200); // 設定視窗大小固定: frame.setResizable(false); } }
封裝建立視窗的方法
package com.zy7y.gui; import java.awt.*; /** * @ProjectName: JavaSE * @PackageName: com.zy7y.gui * @Author: zy7y * @Date: 2020/8/15 下午5:44 * @Description: */ public class TestFrame2 { public static void main(String[] args) { MyFrame myFrame = new MyFrame(100,200,100,100,Color.CYAN); MyFrame myFrame1 = new MyFrame(300,200,200,200,Color.cyan); MyFrame myFrame2 = new MyFrame(200,200,300,300,Color.yellow); MyFrame myFrame3 = new MyFrame(400,200,400,400,Color.BLACK); } } class MyFrame extends Frame{ static int id = 0; public MyFrame(int x, int y, int w, int h, Color color){ // 呼叫父類構造方法初始化一個Frame物件 super("第" + ++id + "個視窗"); // 視窗標題 // 視窗尺寸 setBounds(x,y,w,h); // 視窗調節 setResizable(false); // 視窗可見性 setVisible(true); // 視窗彈出位置 setLocation(200,200); // 視窗顏色 setBackground(color); } }
面板Plan類
面板可以巢狀
package com.zy7y.gui; import java.awt.*; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.awt.event.WindowListener; /** * @ProjectName: JavaSE * @PackageName: com.zy7y.gui * @Author: zy7y * @Date: 2020/8/15 下午5:54 * @Description: 面板 Plan類 */ public class TestPlan { public static void main(String[] args) { // 建立視窗 Frame frame = new Frame(); // 建立面板 Panel panel = new Panel(); // 設定佈局 frame.setLayout(null); // 座標 frame.setBounds(300,300,300,300); frame.setBackground(Color.cyan); // 設定面板 panel.setBackground(Color.red); panel.setBounds(100,100,100,100); // 將面板加入到frame視窗中 frame.add(panel); frame.setVisible(true); // 監聽,介面卡模式； frame.addWindowListener(new WindowAdapter() { // 視窗點選關閉的時候需要做的事情 @Override public void windowClosing(WindowEvent e) { // super.windowClosing(e); // 強制退出程式 System.exit(0); } }); } }
佈局管理器
流式佈局
package com.zy7y.gui;
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
/**
* @ProjectName: JavaSE
* @PackageName: com.zy7y.gui
* @Author: zy7y
* @Date: 2020/8/15 下午6:08
* @Description:
*/
public class TestFlowLayout {
public static void main(String[] args) {
Frame frame = new Frame("流式佈局");
// 元件-按鈕
Button button1 = new Button("按鈕1");
Button button2 = new Button("按鈕2");
Button button3 = new Button("按鈕3");
// 設定為流式佈局,並靠視窗Frame左側
frame.setLayout(new FlowLayout(FlowLayout.LEFT));
frame.setBounds(200,200,100,100);
// 將元件加入視窗中
frame.add(button1);
frame.add(button2);
frame.add(button3);
frame.setVisible(true);
// 監聽，關閉視窗
frame.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
}
東南西北中
package com.zy7y.gui;
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
/**
* @ProjectName: JavaSE
* @PackageName: com.zy7y.gui
* @Author: zy7y
* @Date: 2020/8/15 下午6:16
* @Description: 東西南北中
*/
public class TestBorderLayout {
public static void main(String[] args) {
Frame frame = new Frame("東西南北中");
Button button1 = new Button("東");
Button button2 = new Button("西");
Button button3 = new Button("南");
Button button4 = new Button("北");
Button button5 = new Button("中");
// 新增到東，西，南，北，中的位置
frame.add(button1,BorderLayout.EAST);
frame.add(button2,BorderLayout.WEST);
frame.add(button3,BorderLayout.SOUTH);
frame.add(button4,BorderLayout.NORTH);
frame.add(button5,BorderLayout.CENTER);
frame.setBounds(500,500,900,600);
frame.setVisible(true);
frame.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
}
表格佈局
package com.zy7y.gui;
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
/**
* @ProjectName: JavaSE
* @PackageName: com.zy7y.gui
* @Author: zy7y
* @Date: 2020/8/15 下午6:28
* @Description: 網格佈局
*/
public class TestGridLayout {
public static void main(String[] args) {
Frame frame = new Frame("網/表格格佈局");
Button button1 = new Button("button1");
Button button2 = new Button("button2");
Button button3 = new Button("button3");
Button button4 = new Button("button4");
Button button5 = new Button("button5");
Button button6 = new Button("button6");
// 設定成3行2列的表格佈局
frame.setLayout(new GridLayout(3,2));
frame.add(button1);
frame.add(button2);
frame.add(button3);
frame.add(button4);
frame.add(button5);
frame.add(button6);
frame.setBounds(500,500,900,600);
frame.setVisible(true);
frame.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
}
佈局作業
package com.zy7y.gui;
import javax.swing.border.Border;
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
/**
* @ProjectName: JavaSE
* @PackageName: com.zy7y.gui
* @Author: zy7y
* @Date: 2020/8/15 下午6:36
* @Description: 佈局作業, 面板可以巢狀
*/
public class TestLayoutTopic {
public static void main(String[] args) {
Frame frame = new Frame("佈局作業");
frame.setBounds(500,500,900,600);
Panel panel1 = new Panel(new BorderLayout());
panel1.setBackground(Color.black);
Panel panel2 = new Panel(new GridLayout(2,1));
Panel panel3 = new Panel(new BorderLayout());
panel3.setBackground(Color.red);
Panel panel4 = new Panel(new GridLayout(2,2));
// 內上
panel1.add(new Button("第一行-東"), BorderLayout.EAST);
panel1.add(new Button("第一行-西"), BorderLayout.WEST);
panel2.add(new Button("第一行-第一行"));
panel2.add(new Button("第一行-第二行"));
// 將面板panel2 新增到 面板panle1中間的位置
panel1.add(panel2,BorderLayout.CENTER);
// 內下
panel3.add(new Button("第二行-東"), BorderLayout.EAST);
panel3.add(new Button("第二行-西"), BorderLayout.WEST);
panel4.add(new Button("第二行-中-左上"));
panel4.add(new Button("第二行-中-右上"));
panel4.add(new Button("第二行-中-左下"));
panel4.add(new Button("第二行-中-右下"));
panel3.add(panel4, BorderLayout.CENTER);
frame.add(panel1);
frame.add(panel3);
frame.setLayout(new GridLayout(2,1));
frame.setVisible(true);
frame.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
}
事件監聽
package com.zy7y.gui;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
/**
* @ProjectName: JavaSE
* @PackageName: com.zy7y.gui
* @Author: zy7y
* @Date: 2020/8/15 下午7:27
* @Description: 事件監聽
*/
public class TestActionEvent {
public static void main(String[] args) {
Frame frame = new Frame();
Button button = new Button();
// 按鈕事件
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
System.out.println("按鈕被按下");
}
});
frame.add(button);
frame.pack();
frame.setVisible(true);
// 視窗關閉事件
frame.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
}
package com.zy7y.gui;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
/**
* @ProjectName: JavaSE
* @PackageName: com.zy7y.gui
* @Author: zy7y
* @Date: 2020/8/15 下午8:10
* @Description: 兩個按鈕實現同一個監聽
*/
public class TestActionEvent2 {
public static void main(String[] args) {
Frame frame = new Frame();
Button start = new Button("start");
Button stop = new Button("stop");
Button control = new Button("開始");
control.setBackground(Color.green);
MyMonitor myMonitor = new MyMonitor();
start.addActionListener(myMonitor);
stop.addActionListener(myMonitor);
control.addActionListener(myMonitor);
frame.add(start);
frame.add(stop);
frame.add(control);
frame.setLayout(new GridBagLayout());
frame.pack();
closeWindows(frame);
frame.setVisible(true);
}
// 關閉視窗
public static void closeWindows(Frame frame){
frame.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
}
class MyMonitor implements ActionListener{
@Override
public void actionPerformed(ActionEvent e) {
// e.getActionCommand() 獲取按鈕資訊
System.out.println("按鈕被點選:" + e.getActionCommand());
// 獲得資源物件，強轉成button，實現一個按鈕切換的操作
Button button = (Button)e.getSource();
if (button.getLabel().equals("開始")) {
System.out.println("你點下了開始按鈕");
button.setLabel("結束");
button.setBackground(Color.red);
}else if (button.getLabel().equals("結束")) {
System.out.println("你點下了結束按鈕");
button.setLabel("開始");
button.setBackground(Color.green);
}
}
}