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ngx-bootstrap使用02 Accordion组件的使用

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1 Accordion组件

　　该组件通过一个可折叠的控制面板去在有限空间内显示更多的信息

　　according组件在可折叠指令的最外层，该组件提供了一些列的项目列表去显示被折叠的内容，这些项目列表包含header和body，通过单击这些项目列表的header就可以让body实现关闭和打开效果，从而实现折叠内容的显示和关闭

　　1.1 基本使用

　　　　1.1.1 在模块级别导入AccordionModule

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                    import { BrowserModule } from ‘@angular/platform-browser‘;
import { NgModule } from ‘@angular/core‘;

import { AppComponent } from ‘./app.component‘;
import { TestComponent } from ‘./test/test.component‘;

import { AccordionModule } from ‘ngx-bootstrap‘;

@NgModule({
  declarations: [
    AppComponent,
    TestComponent
  ],
  imports: [
    BrowserModule,
    AccordionModule.forRoot()
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }
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　　　　1.1.2 结构01

　　　　　　在accordion组件内可以使用多个accordion-group组件

　　　　　　技巧01：according-group的heading属性是用于指定面板的标题的，可以在accordion-group组件之内添加任意元素并标注上accordion-heading可以达到相同的效果

　　　　　　技巧02：accordion-group里面还可以方accordion-group

                <
                accordion
                >
                <
                accordion-group 
                heading
                ="折叠标题01"
                >
                
        折叠内容01
      
                </
                accordion-group
                >
                <
                accordion-group 
                heading
                ="折叠内容01"
                >
                
        折叠内容02
      
                </
                accordion-group
                >
                <
                accordion-group
                >
                <
                span 
                accordion-heading
                >折叠标题03</span>
        折叠内容03
      </accordion-group></accordion>
技术分享图片 技术分享图片 
                    <
                    div 
                    class
                    ="panel panel-primary"
                    >
                    <
                    div 
                    class
                    ="panel-heading"
                    >accordion结构01</div><div class="panel-body"><accordion><accordion-group heading="折叠标题01">
        折叠内容01
      </accordion-group><accordion-group heading="折叠内容01">
        折叠内容02
      </accordion-group><accordion-group><span accordion-heading>折叠标题03</span>
        折叠内容03
      </accordion-group></accordion></div><div class="panel-footer">2018-1-7 09:25:43</div></div>
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 　　　　1.1.3 结构02

　　　　　　accordion-panel和accordion-group的用法一样

　　　　　　技巧01：accordion-panel和accordion-group可以互相嵌套使用

                <
                accordion
                >
                <
                accordion-panel 
                heading
                ="折叠标题01"
                >
                
        折叠内容01
      
                </
                accordion-panel
                >
                <
                accordion-panel 
                heading
                ="折叠标题02"
                >
                
        折叠内容02
      
                </
                accordion-panel
                >
                <
                accordion-panel
                >
                <
                span 
                accordion-heading
                >折叠标题03</span>
        折叠内容03
      </accordion-panel></accordion>
技术分享图片 技术分享图片 
                    <
                    div 
                    class
                    ="panel panel-primary"
                    >
                    <
                    div 
                    class
                    ="panel-heading"
                    >accordion结构02</div><div class="panel-body"><accordion><accordion-panel heading="折叠标题01">
        折叠内容01
      </accordion-panel><accordion-panel heading="折叠标题02">
        折叠内容02
      </accordion-panel><accordion-panel><span accordion-heading>折叠标题03</span>
        折叠内容03
      </accordion-panel></accordion></div><div class="panel-footer">2018-1-7 09:36:59</div></div>
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　　1.2 利用其它元素作为accordion-group或者accordion-panel的header

　　　　将accordion-heading属性用于accordion-group内部的任何元素上来代替according-group上的heading属性，那个标注有accordion-heading属性的元素会被当做accordion-group的header模板使用

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                    <
                    div 
                    class
                    ="panel panel-primary"
                    >
                    <
                    div 
                    class
                    ="panel-heading"
                    >利用按钮作为标题</div><div class="panel-body"><accordion><accordion-group><button accordion-heading  class="btn btn-primary">点击显示内容</button><div>
          我是隐藏的内容
        </div></accordion-group><accordion-panel><span accordion-heading class="glyphicon glyphicon-signal">&ngsp;信号强度</span><div>
          这里的信号很好哟！
        </div></accordion-panel></accordion></div><div class="panel-footer">2018-1-7 09:47:41</div></div>
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　　1.3 输入属性isDisabled

　　　　如果accordiong-group的isDisabled属性值为真，那么accordion-group就会被锁定（通过单击来使得accordion-group展现和关闭会失效）

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技术分享图片 技术分享图片 
                    <
                    div 
                    class
                    ="panel panel-primary"
                    >
                    <
                    div 
                    class
                    ="panel-heading"
                    >accordion的disable属性</div><div class="panel-body"><accordion><button class="btn-primary" (click)="status.disable = !status.disable">Disable/Enable</button><span *ngIf="status.disable">
        accordion-group的isDisabled属性为真，accordion-group已经被锁定
      </span><accordion-group [isDisabled]="status.disable"><span accordion-heading>折叠标题</span><p>折叠内容</p></accordion-group></accordion></div><div class="panel-footer">2018-1-7 10:37:38</div></div>
HTML
技术分享图片 技术分享图片 
import { Component, OnInit } from ‘@angular/core‘;

@Component({
  selector: ‘app-test‘,
  templateUrl: ‘./test.component.html‘,
  styleUrls: [‘./test.component.scss‘]
})
export class TestComponent implements OnInit {
  status: any;

  constructor() { }

  ngOnInit() {
    this.status = {
      disable: false
    };
  }

}
TS

　　1.4 输入属性isOpen

　　　　当accordion-group的isOpen属性为真时accordion-group折叠的内容会自动打开，反之会自动关闭

    <accordion>
      <button (click)="status.isopen = !status.isopen">isOpen</button>
      <span *ngIf="status.isopen">accordion-group的isOpen属性为真，折叠内容自动打开</span>
      <span *ngIf="!status.isopen">accordion-group的isOpen属性为假，折叠内容自动关闭</span>
      <accordion-group [isOpen]="status.isopen">
        <span accordion-heading>折叠标题</span>
          折叠内容
      </accordion-group>
    </accordion>
技术分享图片 技术分享图片 
                    <
                    div 
                    class
                    ="panel panel-primary"
                    >
                    <
                    div 
                    class
                    ="panel-heading"
                    >accordion的isOpen属性</div><div class="panel-body"><accordion><button (click)="status.isopen = !status.isopen">isOpen</button><span *ngIf="status.isopen">accordion-group的isOpen属性为真，折叠内容自动打开</span><span *ngIf="!status.isopen">accordion-group的isOpen属性为假，折叠内容自动关闭</span><accordion-group [isOpen]="status.isopen"><span accordion-heading>折叠标题</span>
          折叠内容
      </accordion-group></accordion></div><div class="panel-footer">2018-1-7 11:09:26</div></div>
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技术分享图片 技术分享图片 
import { Component, OnInit } from ‘@angular/core‘;

@Component({
  selector: ‘app-test‘,
  templateUrl: ‘./test.component.html‘,
  styleUrls: [‘./test.component.scss‘]
})
export class TestComponent implements OnInit {
  status: any;

  constructor() { }

  ngOnInit() {
    this.status = {
      disable: false,
      isopen: false
    };
  }

}
TS

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　　1.5 动态accordion

　　　　1.5.1 利用for循环展现多个accordion-group

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技术分享图片 技术分享图片 
                    <
                    div 
                    class
                    ="panel panel-primary"
                    >
                    <
                    div 
                    class
                    ="panel-heading"
                    >利用循环展示多个accordion-group</div><div class="panel-body"><accordion><accordion-group *ngFor="let group of groups;"><span accordion-heading>{{group.header}}</span><div>{{group.content}}</div></accordion-group></accordion></div><div class="panel-footer">2018-1-7 11:30:57</div></div>
HTML
技术分享图片 技术分享图片 
                    import { Component, OnInit } from ‘@angular/core‘;

@Component({
  selector: ‘app-test‘,
  templateUrl: ‘./test.component.html‘,
  styleUrls: [‘./test.component.scss‘]
})
export class TestComponent implements OnInit {
  status: any;
  groups: Group[];
  group: Group = new Group(‘name‘, ‘warrior‘);

  constructor() { }

  ngOnInit() {
    this.status = {
      disable: false,
      isopen: false
    };

    this.groups = [
      new Group(‘折叠标题01‘, ‘折叠内容01‘),
      new Group(‘折叠标题02‘, ‘折叠内容02‘)
    ];

  }

}

export class Group {
  private _header: string;
  private _content: string;

  constructor(header: string, content: string) {
    this._header = header;
    this._content = content;
  }

  get header(): string {
    return this._header;
  }

  set header(value: string) {
    this._header = value;
  }

  get content(): string {
    return this._content;
  }

  set content(value: string) {
    this._content = value;
  }
}
TS

　　　　1.5.2 动态添加accordion-group

　　　　　　触发单击事件 -> 为groups列表添加一个元素 -> 利用*ngFor展现groups列表

技术分享图片

技术分享图片 技术分享图片 
                    <
                    div 
                    class
                    ="panel panel-primary"
                    >
                    <
                    div 
                    class
                    ="panel-heading"
                    >动态添加accordion-group</div><div class="panel-body"><accordion><button class="btn-primary" (click)="add()">
        添加accordion-group
      </button><accordion-group *ngFor="let group of groups;"><span accordion-heading>{{group.header}}</span><div>{{group.content}}</div></accordion-group></accordion></div><div class="panel-footer">2018-1-7 11:41:26</div></div>
HTML
技术分享图片 技术分享图片 
import { Component, OnInit } from ‘@angular/core‘;

@Component({
  selector: ‘app-test‘,
  templateUrl: ‘./test.component.html‘,
  styleUrls: [‘./test.component.scss‘]
})
export class TestComponent implements OnInit {
  status: any;
  groups: Group[];
  group: Group = new Group(‘name‘, ‘warrior‘);

  constructor() { }

  ngOnInit() {
    this.status = {
      disable: false,
      isopen: false
    };

    this.groups = [
      new Group(‘折叠标题01‘, ‘折叠内容01‘),
      new Group(‘折叠标题02‘, ‘折叠内容02‘)
    ];

  }

  add() {
    this.groups = [...this.groups, new Group(‘折叠标题‘ + Math.random() * 100, ‘折叠内容‘ + Math.random() * 100)];
  }

}

export class Group {
  private _header: string;
  private _content: string;

  constructor(header: string, content: string) {
    this._header = header;
    this._content = content;
  }

  get header(): string {
    returnthis._header;
  }

  set header(value: string) {
    this._header = value;
  }

  get content(): string {
    returnthis._content;
  }

  set content(value: string) {
    this._content = value;
  }
}
TS

　　1.6 属性closeOthers

　　　　当accordion的closeOthers属性值为真时就只能在同一时间打开一个accordion-group，再打开第二个时第一个会自动关闭

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技术分享图片 技术分享图片 
                    <
                    div 
                    class
                    ="panel panel-primary"
                    >
                    <
                    div 
                    class
                    ="panel-heading"
                    >每次允许打开一个accordion-group</div><div class="panel-body"><input type="checkbox" [(ngModel)]="oneAtTime" id="one"/><label for="one">开启oneAtTime功能</label><span style="color: green;" *ngIf="oneAtTime">
      checkBox的值为: {{oneAtTime}}
    </span><span style="color: red" *ngIf="!oneAtTime">
      checkBox的值为: {{oneAtTime}}
    </span><accordion [closeOthers]="oneAtTime"><accordion-group *ngFor="let group of groups;"><span accordion-heading>{{group.header}}</span><div>{{group.content}}</div></accordion-group></accordion></div><div class="panel-footer">2018-1-7 14:53:28</div></div>
HTML
技术分享图片 技术分享图片 
import { Component, OnInit } from ‘@angular/core‘;

@Component({
  selector: ‘app-test‘,
  templateUrl: ‘./test.component.html‘,
  styleUrls: [‘./test.component.scss‘]
})
export class TestComponent implements OnInit {
  status: any;
  groups: Group[];
  oneAtTime = false;

  constructor() { }

  ngOnInit() {
    this.status = {
      disable: false,
      isopen: false
    };

    this.groups = [
      new Group(‘折叠标题01‘, ‘折叠内容01‘),
      new Group(‘折叠标题02‘, ‘折叠内容02‘),
      new Group(‘折叠标题03‘, ‘折叠内容03‘)
    ];

  }

  add() {
    this.groups = [...this.groups, new Group(‘折叠标题‘ + Math.random() * 100, ‘折叠内容‘ + Math.random() * 100)];
  }

}

export class Group {
  private _header: string;
  private _content: string;

  constructor(header: string, content: string) {
    this._header = header;
    this._content = content;
  }

  get header(): string {
    returnthis._header;
  }

  set header(value: string) {
    this._header = value;
  }

  get content(): string {
    returnthis._content;
  }

  set content(value: string) {
    this._content = value;
  }
}
TS

　　1.7 输入属性panelClass

　　　　当accordion-group的panelClass属性为bootstrap面板相关的样式类名时，according-group就会拥有对应的样式

　　　　技巧01：boostrap的面板样式有 -> 去官网查看

技术分享图片

　　　　技巧02：panelClass = "panel-danger" 和 [panelClass]="panel-danger是有区别的

　　　　　　panelClass = "panel-danger"  会将panel-danger直接当成panelClass的值

　　　　　　[panelClass]="panel-danger 会到TS文件中去寻找名为panel-danger的变量，并将变量的值赋值给panelClass属性

技术分享图片

技术分享图片 技术分享图片 
<div class="panel panel-primary">
  <div class="panel-heading">给accordion-group添加样式</div>
  <div class="panel-body">
    <accordion>
      <accordion-group>
        <span accordion-heading>折叠标题01</span>
        <div>折叠内容01</div>
      </accordion-group>
      <accordion-group [panelClass]="customClass">
        <span accordion-heading>折叠标题02</span>
        <div>折叠内容02</div>
      </accordion-group>
      <accordion-group panelClass="panel-danger">
        <span accordion-heading>折叠标题03</span>
        <div>折叠内容03</div>
      </accordion-group>
    </accordion>
  </div>
  <div class="panel-footer">2018-1-715:18:33</div>
</div>
HTML
技术分享图片 技术分享图片 
import { Component, OnInit } from ‘@angular/core‘;

@Component({
  selector: ‘app-test‘,
  templateUrl: ‘./test.component.html‘,
  styleUrls: [‘./test.component.scss‘]
})
export class TestComponent implements OnInit {
  status: any;
  groups: Group[];
  oneAtTime = false;
  customClass = ‘panel-success‘;

  constructor() { }

  ngOnInit() {
    this.status = {
      disable: false,
      isopen: false
    };

    this.groups = [
      new Group(‘折叠标题01‘, ‘折叠内容01‘),
      new Group(‘折叠标题02‘, ‘折叠内容02‘),
      new Group(‘折叠标题03‘, ‘折叠内容03‘)
    ];

  }

  add() {
    this.groups = [...this.groups, new Group(‘折叠标题‘ + Math.random() * 100, ‘折叠内容‘ + Math.random() * 100)];
  }

}

export class Group {
  private _header: string;
  private _content: string;

  constructor(header: string, content: string) {
    this._header = header;
    this._content = content;
  }

  get header(): string {
    returnthis._header;
  }

  set header(value: string) {
    this._header = value;
  }

  get content(): string {
    returnthis._content;
  }

  set content(value: string) {
    this._content = value;
  }
}
TS

　　1.8 输出属性isOpenChange

　　　　当accordion-group打开和关闭时都会触发isOpenChange事件，该事件的事件值是一个Boolean类型，打开时为true，关闭时为false

技术分享图片

技术分享图片 技术分享图片 
                    <
                    div 
                    class
                    ="panel panel-primary"
                    >
                    <
                    div 
                    class
                    ="panel-heading"
                    >给accordion-group添加样式</div><div class="panel-body"><accordion ><accordion-group (isOpenChange)="onChange($event)"><span accordion-heading>折叠标题01</span><div>折叠内容01</div></accordion-group><accordion-group [panelClass]="customClass"><span accordion-heading>折叠标题02</span><div>折叠内容02</div></accordion-group><accordion-group panelClass="panel-danger"><span accordion-heading>折叠标题03</span><div>折叠内容03</div></accordion-group></accordion></div><div class="panel-footer">2018-1-7 15:18:33</div></div>
HTML
技术分享图片 技术分享图片 
import { Component, OnInit } from ‘@angular/core‘;

@Component({
  selector: ‘app-test‘,
  templateUrl: ‘./test.component.html‘,
  styleUrls: [‘./test.component.scss‘]
})
export class TestComponent implements OnInit {
  status: any;
  groups: Group[];
  oneAtTime = false;
  customClass = ‘panel-success‘;

  constructor() { }

  ngOnInit() {
    this.status = {
      disable: false,
      isopen: false
    };

    this.groups = [
      new Group(‘折叠标题01‘, ‘折叠内容01‘),
      new Group(‘折叠标题02‘, ‘折叠内容02‘),
      new Group(‘折叠标题03‘, ‘折叠内容03‘)
    ];

  }

  add() {
    this.groups = [...this.groups, new Group(‘折叠标题‘ + Math.random() * 100, ‘折叠内容‘ + Math.random() * 100)];
  }

  onChange(event: any) {
    console.log(JSON.stringify(event));
  }

}

export class Group {
  private _header: string;
  private _content: string;

  constructor(header: string, content: string) {
    this._header = header;
    this._content = content;
  }

  get header(): string {
    returnthis._header;
  }

  set header(value: string) {
    this._header = value;
  }

  get content(): string {
    returnthis._content;
  }

  set content(value: string) {
    this._content = value;
  }
}
TS

　　1.9 accordion组件使用demo源代码　

技术分享图片 技术分享图片 
                    <
                    div 
                    class
                    ="panel panel-primary"
                    >
                    <
                    div 
                    class
                    ="panel-heading"
                    >accordion的disable属性</div><div class="panel-body"><accordion><button class="btn-primary" (click)="status.disable = !status.disable">Disable/Enable</button><span *ngIf="status.disable">
        accordion-group的isDisabled属性为真，accordion-group已经被锁定
      </span><accordion-group [isDisabled]="status.disable"><span accordion-heading>折叠标题</span><p>折叠内容</p></accordion-group></accordion></div><div class="panel-footer">2018-1-7 10:37:38</div></div><div class="panel panel-primary"><div class="panel-heading">accordion的isOpen属性</div><div class="panel-body"><accordion><button (click)="status.isopen = !status.isopen">isOpen</button><span *ngIf="status.isopen">accordion-group的isOpen属性为真，折叠内容自动打开</span><span *ngIf="!status.isopen">accordion-group的isOpen属性为假，折叠内容自动关闭</span><accordion-group [isOpen]="status.isopen"><span accordion-heading>折叠标题</span><div>
          折叠内容
        </div></accordion-group></accordion></div><div class="panel-footer">2018-1-7 11:09:26</div></div><div class="panel panel-primary"><div class="panel-heading">利用循环展示多个accordion-group</div><div class="panel-body"><accordion><accordion-group *ngFor="let group of groups;"><span accordion-heading>{{group?.header}}</span><div>{{group?.content}}</div></accordion-group></accordion></div><div class="panel-footer">2018-1-7 11:30:57</div></div><div class="panel panel-primary"><div class="panel-heading">动态添加accordion-group</div><div class="panel-body"><accordion><button class="btn-primary" (click)="add()">
        添加accordion-group
      </button><accordion-group *ngFor="let group of groups;"><span accordion-heading>{{group.header}}</span><div>{{group.content}}</div></accordion-group></accordion></div><div class="panel-footer">2018-1-7 11:41:26</div></div><div class="panel panel-primary"><div class="panel-heading">每次允许打开一个accordion-group</div><div class="panel-body"><input type="checkbox" [(ngModel)]="oneAtTime" id="one"/><label for="one">开启oneAtTime功能</label><span style="color: green;" *ngIf="oneAtTime">
      checkBox的值为: {{oneAtTime}}
    </span><span style="color: red" *ngIf="!oneAtTime">
      checkBox的值为: {{oneAtTime}}
    </span><accordion [closeOthers]="oneAtTime"><accordion-group *ngFor="let group of groups;"><span accordion-heading>{{group.header}}</span><div>{{group.content}}</div></accordion-group></accordion></div><div class="panel-footer">2018-1-7 14:53:28</div></div><div class="panel panel-primary"><div class="panel-heading">给accordion-group添加样式</div><div class="panel-body"><accordion ><accordion-group (isOpenChange)="onChange($event)"><span accordion-heading>折叠标题01</span><div>折叠内容01</div></accordion-group><accordion-group [panelClass]="customClass"><span accordion-heading>折叠标题02</span><div>折叠内容02</div></accordion-group><accordion-group panelClass="panel-danger"><span accordion-heading>折叠标题03</span><div>折叠内容03</div></accordion-group></accordion></div><div class="panel-footer">2018-1-7 15:18:33</div></div><div class="panel panel-primary"><div class="panel-heading">面板标题</div><div class="panel-body">面板内容</div><div class="panel-footer">2018-1-7 11:36:30</div></div>
HTML
技术分享图片 技术分享图片 
import { Component, OnInit } from ‘@angular/core‘;

@Component({
  selector: ‘app-test‘,
  templateUrl: ‘./test.component.html‘,
  styleUrls: [‘./test.component.scss‘]
})
export class TestComponent implements OnInit {
  status: any;
  groups: Group[];
  oneAtTime = false;
  customClass = ‘panel-success‘;

  constructor() { }

  ngOnInit() {
    this.status = {
      disable: false,
      isopen: false
    };

    this.groups = [
      new Group(‘折叠标题01‘, ‘折叠内容01‘),
      new Group(‘折叠标题02‘, ‘折叠内容02‘),
      new Group(‘折叠标题03‘, ‘折叠内容03‘)
    ];

  }

  add() {
    this.groups = [...this.groups, new Group(‘折叠标题‘ + Math.random() * 100, ‘折叠内容‘ + Math.random() * 100)];
  }

  onChange(event: any) {
    console.log(JSON.stringify(event));
  }

}

export class Group {
  private _header: string;
  private _content: string;

  constructor(header: string, content: string) {
    this._header = header;
    this._content = content;
  }

  get header(): string {
    returnthis._header;
  }

  set header(value: string) {
    this._header = value;
  }

  get content(): string {
    returnthis._content;
  }

  set content(value: string) {
    this._content = value;
  }
}
TS

　　1.10 accordion官网使用教程

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原文：https://www.cnblogs.com/NeverCtrl-C/p/8228200.html

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