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java中Swing五种常见的布局方式

作者:互联网

1、边界布局(BorderLayout)

2、流式布局(FlowLayout)

3、网格布局(GridLayout)

4、盒子布局(BoxLaYout)

5、空布局(null)

还有其他两种布局,分别是GridBagLayout(网格包布局)、CardLayout(卡片布局)

注意:JFrame和JDialog默认布局为BorderLayout,JPanel和Applet默认布局为FlowLayout

边界布局示例代码:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 import java.awt.BorderLayout;   import javax.swing.JButton; import javax.swing.JFrame;   public class BorderLayoutExample extends JFrame{   JButton btn1=new JButton("东");   JButton btn2=new JButton("南");   JButton btn3=new JButton("西");   JButton btn4=new JButton("北");   JButton btn5=new JButton("中");   BorderLayoutExample(){     init();     this.setTitle("边界布局");     this.setResizable(true);     this.setSize(200, 200);     this.setLocationRelativeTo(null);     this.setDefaultCloseOperation(EXIT_ON_CLOSE);     this.setVisible(true);   }   void init(){     this.setLayout(new BorderLayout(10,5)); //默认为0,0;水平间距10,垂直间距5     this.add(btn1,BorderLayout.EAST);     this.add(btn2,BorderLayout.SOUTH);     this.add(btn3,BorderLayout.WEST);     this.add(btn4,BorderLayout.NORTH);     this.add(btn5,BorderLayout.CENTER);   }   public static void main(String args[]){     new BorderLayoutExample();   } }

运行结果:

流式布局示例代码:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 import java.awt.FlowLayout;   import javax.swing.JButton; import javax.swing.JFrame;   public class FlowLayoutExample extends JFrame{   JButton btn1=new JButton("one");   JButton btn2=new JButton("two");   JButton btn3=new JButton("three");   JButton btn4=new JButton("four");   JButton btn5=new JButton("five");   FlowLayoutExample(){     init();     this.setTitle("流式布局");     this.setResizable(true);     this.setSize(200, 200);     this.setLocationRelativeTo(null);     this.setDefaultCloseOperation(EXIT_ON_CLOSE);     this.setVisible(true);   }   void init(){     this.setLayout(new FlowLayout(FlowLayout.LEFT,10,5)); //默认为居中;水平间距10,垂直间距5     this.add(btn1);     this.add(btn2);     this.add(btn3);     this.add(btn4);     this.add(btn5);   }   public static void main(String args[]){     new FlowLayoutExample();   } }

运行结果:

网格布局示例代码:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 import java.awt.GridLayout;   import javax.swing.JButton; import javax.swing.JFrame;   public class GridLayoutExample extends JFrame{     JButton btn1=new JButton("one");     JButton btn2=new JButton("two");     JButton btn3=new JButton("three");     JButton btn4=new JButton("four");     JButton btn5=new JButton("five");     GridLayoutExample(){         init();         this.setTitle("表格布局");         this.setResizable(true);         this.setSize(300, 200);         this.setLocationRelativeTo(null);         this.setDefaultCloseOperation(EXIT_ON_CLOSE);         this.setVisible(true);     }     void init(){         this.setLayout(new GridLayout(2,3,10,5)); //默认为1行,n列;2行3列,水平间距10,垂直间距5         this.add(btn1);         this.add(btn2);         this.add(btn3);         this.add(btn4);         this.add(btn5);     }     public static void main(String args[]){         new GridLayoutExample();     } }

运行结果:

盒子布局示例代码:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 import javax.swing.Box; import javax.swing.BoxLayout; import javax.swing.JButton; import javax.swing.JFrame;   public class BoxLaYoutExample extends JFrame{     JButton btn1=new JButton("one");     JButton btn2=new JButton("two");     JButton btn3=new JButton("three");     JButton btn4=new JButton("four");     JButton btn5=new JButton("five");     BoxLaYoutExample(){         init();         this.setTitle("表格布局");         this.setResizable(true);         this.setSize(300, 200);         this.setLocationRelativeTo(null);         this.setDefaultCloseOperation(EXIT_ON_CLOSE);         this.setVisible(true);     }     void init(){         this.setLayout(new BoxLayout(this.getContentPane(),BoxLayout.X_AXIS));         //可以使用Box容器代替         //Box box = new Box(BoxLayout.Y_AXIS);box.add(btn...);box.add(creat..);         this.add(btn1);         this.add(btn2);         this.getContentPane().add(Box.createHorizontalStrut(10)); //采用x布局时,添加固定宽度组件隔开         //this.getContentPane().add(Box.createVerticalStrut(5)); //采用y布局时,添加固定高度组件隔开         this.add(btn3);         this.add(btn4);         this.add(btn5);     }     public static void main(String args[]){         new BoxLaYoutExample();     } }

运行结果:

空布局示例代码:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 import javax.swing.JButton; import javax.swing.JFrame;   public class NullLayoutExample extends JFrame{     JButton btn1=new JButton("one");     JButton btn2=new JButton("two");     JButton btn3=new JButton("three");     JButton btn4=new JButton("four");     JButton btn5=new JButton("five");     NullLayoutExample(){         init();         this.setTitle("空布局");         this.setResizable(true);         this.setSize(300, 300);         this.setLocationRelativeTo(null);         this.setDefaultCloseOperation(EXIT_ON_CLOSE);         this.setVisible(true);     }     void init(){         this.setLayout(null);         btn1.setBounds(10, 0, 100, 50); //x坐标10,y坐标0,组件宽100,高50         btn2.setBounds(20, 50, 100, 50);         btn3.setBounds(30, 100, 100, 50);         btn4.setBounds(40, 150, 100, 50);         btn5.setBounds(50, 200, 100, 50);         this.add(btn1);         this.add(btn2);         this.add(btn3);         this.add(btn4);         this.add(btn5);               }     public static void main(String args[]){         new NullLayoutExample();     } }

运行结果:

   

标签:10,java,import,布局,add,五种,Swing,new,JButton
来源: https://www.cnblogs.com/meteor119/p/15218920.html