Layui(三):导航菜单、选项卡、进度条和面板

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参考技术A

用什么标签不重要,只要样式用对了,都能出效果,用ul里面嵌套li与div嵌套div是一样的,注意里面子项里面要加一个<a></a>不然点击没效果
如果不加载element模块,也没有效果
(在页面中有很多元素需要自动去完成一些处理,譬如导航菜单的小滑块、Tab的切换操作,他们往往不需要去单独调用一个方法来开启一项功能,而页面上恰恰有太多这样的小交互,所以我们统一归类为element组件)

相关样式:
1、方向
(1)水平:默认的
(2)垂直:layui-nav-tree
2、其他样式
(1) layui-nav :代表这是一个导航菜单
(2) layui-nav-item :放在(1)的子标签中,代表这个导航菜单的一个子项
(3) lay-this :和(2)同级,代表当前选中的菜单项
(4) layui-nav-child :子项的子项
(5) layui-nav-img :会以导航合适的大小处理图片

导航菜单可应用于头部和侧边,Tab选项卡提供多套风格,支持响应式,支持删除选项卡等功能。面包屑结构简单,支持自定义分隔符。

1、风格说明
默认风格:只需要加layui-tab
简洁风格:再追加上layui-tab-brief
卡片风格:再追加上layui-tab-card

2、相关样式
layui-tab:代表这是一个选项卡
(1)layui-tab-title:选项卡的头
【1】layui-tab-this:选中该选项卡

(2)layui-tab-content:选项卡的内容
【1】layui-tab-item:一个选项卡头对应的具体内容
【2】layui-tab-show:表示初始显示,一般哪个头上加了layui-tab-this,它对应的content就加上layui-tab-show

3、相关属性
lay-allowclose="true":是否开启关闭按钮
lay-filter="demo":用来在方法中唯一确定一个layui组件
lay-id="1":用来配合lay-filter属性唯一确定一个子组件

4、相关方法
element.tabAdd(filter, options):用于新增一个Tab选项
option示例:

title: \'选项卡的标题\'
,content: \'选项卡的内容\' //支持传入html
,id: \'选项卡标题的lay-id属性值\'

element.tabDelete(filter, layid):用于删除指定的Tab选项
element.tabChange(filter, layid):用于外部切换到指定的Tab项上

进度条进度条可应用于许多业务场景,如任务完成进度、loading等等,是一种较为直观的表达元素。

相关样式:
layui-progress:表示这是一个进度条
layui-progress-bar:表示进度条中的进度,依靠其lay-percent属性的值来控制进度大小,值取值范围0-100%
layui-bg-red/green/...:表示进度条的颜色
layui-progress-big:表示大尺寸进度条

相关属性:
lay-percent="80%":代表具体的进度
lay-showpercent="true":是否显示百分比数字

进度条的宽度是 100% 适配于它的父级元素

一般的面板通常是指一个独立的容器,而折叠面板则能有效地节省页面的可视面积,非常适合应用于:QA说明、帮助文档等(同样依赖element)

1、卡片面板

相关样式:
layui-row:代表一行
layui-col-space15:space0-space30,代表卡片之间的间距
layui-colmd5:md1-12,代表当前卡片占整行的列数
layui-card:代表一个卡片
layui-card-header:代表卡片头信息
layui-card-body:代表卡片内容样式

2、普通折叠面板

相关样式:
layui-collapse:代表一个折叠面板
layui-colla-item:代表一个折叠项
layui-colla-title:代表一个折叠项的标题
layui-colla-content:代表一个折叠项展开s的内容
layui-show:是否展开

相关事件:

3、手风琴面板
在普通折叠面板的基础上加上lay-accordion=""

JAVA Swing - 另一个卡片面板上的卡片面板上的选项卡式面板 setSelectedIndex()

【中文标题】JAVA Swing - 另一个卡片面板上的卡片面板上的选项卡式面板 setSelectedIndex()【英文标题】:JAVA Swing - tabbed panel setSelectedIndex() on a card panel from another card panel 【发布时间】:2013-11-13 19:01:54 【问题描述】:

我有一个如下所示的 GUI。默认情况下,卡片布局card 1 面板中的选项卡式窗格显示第一个选项卡。当我导航到card 2 时,我想知道如何使那里的按钮导航到card 1 选项卡3。我知道如何使用getParent() 从该按钮到达card 1,但我不知道不知道如何从那里显示我想要的特定选项卡。 (注:card 1card 2是两个不同的JPanel类,父类是一个JFrame类)

图片:左侧为卡片 1,带有标签面板,右侧为卡片 2

以下是我的代码:

主 JFrame:

import java.awt.CardLayout;

public class NewJFrame extends javax.swing.JFrame 

public NewJFrame() 
    initComponents();


/**
 * This method is called from within the constructor to initialize the form.
 * WARNING: Do NOT modify this code. The content of this method is always
 * regenerated by the Form Editor.
 */
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">                          
private void initComponents() 

    jbtCard1 = new javax.swing.JButton();
    jbtCard2 = new javax.swing.JButton();
    cardPane = new javax.swing.JPanel();
    jPanelCard11 = new CardLayoutTest.JPanelCard1();
    jPanelCard21 = new CardLayoutTest.JPanelCard2();

    setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

    jbtCard1.setText("Card 1");
    jbtCard1.addActionListener(new java.awt.event.ActionListener() 
        public void actionPerformed(java.awt.event.ActionEvent evt) 
            jbtCard1ActionPerformed(evt);
        
    );

    jbtCard2.setText("Card 2");
    jbtCard2.addActionListener(new java.awt.event.ActionListener() 
        public void actionPerformed(java.awt.event.ActionEvent evt) 
            jbtCard2ActionPerformed(evt);
        
    );

    cardPane.setName(""); // NOI18N
    cardPane.setLayout(new java.awt.CardLayout());
    cardPane.add(jPanelCard11, "card1");
    cardPane.add(jPanelCard21, "card2");

    javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
    getContentPane().setLayout(layout);
    layout.setHorizontalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
            .addGap(87, 87, 87)
            .addComponent(jbtCard1)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
            .addComponent(jbtCard2)
            .addGap(80, 80, 80))
        .addComponent(cardPane, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
    );
    layout.setVerticalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
            .addComponent(cardPane, javax.swing.GroupLayout.DEFAULT_SIZE, 260, Short.MAX_VALUE)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                .addComponent(jbtCard2)
                .addComponent(jbtCard1))
            .addContainerGap())
    );

    pack();
// </editor-fold>                        

private void jbtCard1ActionPerformed(java.awt.event.ActionEvent evt)                                          
    CardLayout card = (CardLayout) cardPane.getLayout();
    card.show(cardPane, "card1");
                                        

private void jbtCard2ActionPerformed(java.awt.event.ActionEvent evt)                                          
    CardLayout card = (CardLayout) cardPane.getLayout();
    card.show(cardPane, "card2");
                                        


public static void main(String args[]) 
    /* Set the Nimbus look and feel */
    //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
    /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
     * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
     */
    try 
        for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) 
            if ("Nimbus".equals(info.getName())) 
                javax.swing.UIManager.setLookAndFeel(info.getClassName());
                break;
            
        
     catch (ClassNotFoundException ex) 
        java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
     catch (InstantiationException ex) 
        java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
     catch (IllegalAccessException ex) 
        java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
     catch (javax.swing.UnsupportedLookAndFeelException ex) 
        java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    
    //</editor-fold>

    /* Create and display the form */
    java.awt.EventQueue.invokeLater(new Runnable() 
        public void run() 
            new NewJFrame().setVisible(true);
        
    );

// Variables declaration - do not modify                     
private javax.swing.JPanel cardPane;
private CardLayoutTest.JPanelCard1 jPanelCard11;
private CardLayoutTest.JPanelCard2 jPanelCard21;
private javax.swing.JButton jbtCard1;
private javax.swing.JButton jbtCard2;
// End of variables declaration                   

卡片 1 面板:

public class JPanelCard1 extends javax.swing.JPanel 

public JPanelCard1() 
    initComponents();


// <editor-fold defaultstate="collapsed" desc="Generated Code">                          
private void initComponents() 

    jTabbedPane1 = new javax.swing.JTabbedPane();
    jPanel1 = new javax.swing.JPanel();
    jLabel2 = new javax.swing.JLabel();
    jPanel2 = new javax.swing.JPanel();
    jLabel1 = new javax.swing.JLabel();
    jPanel3 = new javax.swing.JPanel();
    jLabel3 = new javax.swing.JLabel();

    jLabel2.setText("card 1 tab 1 ");

    javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
    jPanel1.setLayout(jPanel1Layout);
    jPanel1Layout.setHorizontalGroup(
        jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel1Layout.createSequentialGroup()
            .addGap(101, 101, 101)
            .addComponent(jLabel2)
            .addContainerGap(233, Short.MAX_VALUE))
    );
    jPanel1Layout.setVerticalGroup(
        jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel1Layout.createSequentialGroup()
            .addGap(62, 62, 62)
            .addComponent(jLabel2)
            .addContainerGap(138, Short.MAX_VALUE))
    );

    jTabbedPane1.addTab("tab1", jPanel1);

    jLabel1.setText("card 1 tab 2");

    javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
    jPanel2.setLayout(jPanel2Layout);
    jPanel2Layout.setHorizontalGroup(
        jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel2Layout.createSequentialGroup()
            .addGap(73, 73, 73)
            .addComponent(jLabel1)
            .addContainerGap(264, Short.MAX_VALUE))
    );
    jPanel2Layout.setVerticalGroup(
        jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel2Layout.createSequentialGroup()
            .addGap(92, 92, 92)
            .addComponent(jLabel1)
            .addContainerGap(108, Short.MAX_VALUE))
    );

    jTabbedPane1.addTab("tab2", jPanel2);

    jLabel3.setText("card 1 tab 3");

    javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
    jPanel3.setLayout(jPanel3Layout);
    jPanel3Layout.setHorizontalGroup(
        jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel3Layout.createSequentialGroup()
            .addGap(140, 140, 140)
            .addComponent(jLabel3)
            .addContainerGap(197, Short.MAX_VALUE))
    );
    jPanel3Layout.setVerticalGroup(
        jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel3Layout.createSequentialGroup()
            .addGap(71, 71, 71)
            .addComponent(jLabel3)
            .addContainerGap(129, Short.MAX_VALUE))
    );

    jTabbedPane1.addTab("tab3", jPanel3);

    javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
    this.setLayout(layout);
    layout.setHorizontalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addComponent(jTabbedPane1)
    );
    layout.setVerticalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(layout.createSequentialGroup()
            .addComponent(jTabbedPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 242, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addGap(0, 58, Short.MAX_VALUE))
    );
// </editor-fold>                        
// Variables declaration - do not modify                     
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JPanel jPanel3;
private javax.swing.JTabbedPane jTabbedPane1;
// End of variables declaration                   

卡片 2 面板:

import java.awt.CardLayout;
import javax.swing.JPanel;

public class JPanelCard2 extends javax.swing.JPanel 

public JPanelCard2() 
    initComponents();


/**
 * This method is called from within the constructor to initialize the form.
 * WARNING: Do NOT modify this code. The content of this method is always
 * regenerated by the Form Editor.
 */
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">                          
private void initComponents() 

    jButton1 = new javax.swing.JButton();
    jLabel1 = new javax.swing.JLabel();

    jButton1.setText("go to Card 1 tab 3");
    jButton1.addActionListener(new java.awt.event.ActionListener() 
        public void actionPerformed(java.awt.event.ActionEvent evt) 
            jButton1ActionPerformed(evt);
        
    );

    jLabel1.setText("Card 2");

    javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
    this.setLayout(layout);
    layout.setHorizontalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(layout.createSequentialGroup()
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(layout.createSequentialGroup()
                    .addGap(261, 261, 261)
                    .addComponent(jButton1))
                .addGroup(layout.createSequentialGroup()
                    .addGap(52, 52, 52)
                    .addComponent(jLabel1)))
            .addContainerGap(18, Short.MAX_VALUE))
    );
    layout.setVerticalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(layout.createSequentialGroup()
            .addGap(48, 48, 48)
            .addComponent(jLabel1)
            .addGap(75, 75, 75)
            .addComponent(jButton1)
            .addContainerGap(140, Short.MAX_VALUE))
    );
// </editor-fold>                        

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt)                                          
    //show card 1 from here
    CardLayout card = (CardLayout) this.getParent().getLayout();
    card.show((JPanel) this.getParent(), "card1");
    //card1 shown, but how to show specific tab in the tab pane from here?
                                        

// Variables declaration - do not modify                     
private javax.swing.JButton jButton1;
private javax.swing.JLabel jLabel1;
// End of variables declaration                   

【问题讨论】:

【参考方案1】:

我想你正在寻找JTabbedPane.html.setSelectedIndex(int)。

以下不是最优雅的解决方案,但它应该可以在不需要大量重构的情况下工作。

在NewJFrame中添加一个方法:

public CardLayoutTest.JPanelCard1 getJPanelCard11() 
    return jPanelCard11;

在 JPanelCard1 中添加一个方法:

public void setTab(int index) 
    jTabbedPane1.setSelectedIndex(index);

在 JPanelCard2 中调用这些:

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt)                                          
    //show card 1 from here
    CardLayout card = (CardLayout) this.getParent().getLayout();
    card.show((JPanel) this.getParent(), "card1");

    //card1 shown, show specific tab in the tab pane from here:

    NewJFrame parent = (NewJFrame) this.getParent();
    ((JPanelCard1) parent.getJPanelCard11()).setTab(1);

【讨论】:

它有效。但为什么它不是优雅的方式?是不是因为这种方式是紧耦合的? 好问题;这么晚才回复很抱歉。诚然,这里有一些相当紧密的耦合。您可能希望更明确地对操作/命令建模,甚至可能在选项卡、卡片和应用程序级别范围内。如果你有很多卡片、标签等,你也可以抽象出一些结构和解决方案。这些考虑超出了这个问题的范围。

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