[转]Angular2 Material2 封装组件 —— confirmDialog确定框
本文转自:https://www.jianshu.com/p/0c566fc1730d
环境:
Angular 4.0.0
Angular2 Material2 2.0.0-beta.3
node v7.4.0
npm 4.0.5
使用Dialog封装confirmDialog确定框
来,首先来看效果图~
1.定义通用确定框组件
confirmDialog.component.html
<div class="clearfix">
<h1 class="pull-left" md-dialog-title>{{ config.title || '确认操作' }}</h1>
<span class="icon-close-mid pull-right md-dialog-title-close" (click)="mdDialogRef.close(false)"></span>
</div>
<div md-dialog-content>{{ config.content }}</div>
<div md-dialog-actions class="confirm-dialog-operate">
<button md-raised-button color="primary" (click)="mdDialogRef.close(true)">{{ config.button || '确定' }}</button>
<button md-raised-button (click)="mdDialogRef.close(false)" class="confirm-dialog-cancel">取消</button>
</div>
配置项 | 描述 |
---|---|
config.title | 可配置,默认为“ 确定操作 ”。确定框的标题。 |
config.content | 需配置。确定框的提示内容。 |
config.button | 可配置,默认为“ 确定 ”。操作按钮的文字。 |
confirmDialog.component.ts
import { Component, OnInit, Inject } from '@angular/core';
import { MdDialogRef } from '@angular/material';
import {MD_DIALOG_DATA} from '@angular/material';
@Component({
selector: 'confirm-dialog',
styleUrls: ['confirmDialog.component.scss'],
templateUrl: 'confirmDialog.component.html'
})
export class ConfirmDialogComponent implements OnInit {
config : {};
constructor(private mdDialogRef : MdDialogRef<ConfirmDialogComponent>, @Inject(MD_DIALOG_DATA) data: any){
this.config = data;
}
public ngOnInit() { }
}
confirmDialog.component.scss
.md-dialog-title-close:hover{
cursor: pointer;
}
.confirm-dialog-operate{
margin-bottom: 0;
margin-top: 15px;
align-items: center;
justify-content: center;
}
.confirm-dialog-cancel{
margin-left: 20px;
}
2.在app.module.ts引入组件
import { ConfirmDialogComponent } from './confirmDialog/confirmDialog.component';
@NgModule({
declarations: [
···
ConfirmDialogComponent,
···
],
entryComponents: [
···
ConfirmDialogComponent,
···
]
})
export class AppModule { }
3.把组件注入到服务
为了通用,把组件注入服务,方便在其他地方使用。这样的话,就不用在每次使用的时候重新定义组件。
confirmDialog.service.ts
import { Component, Inject, Injectable } from '@angular/core';
import { DOCUMENT } from '@angular/platform-browser';
import { MdDialog, MdDialogRef, MdDialogConfig } from '@angular/material';
import { ConfirmDialogComponent } from './confirmDialog.component';
import { Observable } from 'rxjs/Observable';
export class confirmDialogService {
constructor( @Inject(MdDialog) public _confirmDialog: MdDialog, @Inject(DOCUMENT) doc: any) {
// 打开dialog,body添加no-scroll样式
_confirmDialog.afterOpen.subscribe((ref: MdDialogRef<any>) => {
if (!doc.body.classList.contains('no-scroll')) {
doc.body.classList.add('no-scroll');
}
});
// 关闭dialog,body移除no-scroll样式
_confirmDialog.afterAllClosed.subscribe(() => {
doc.body.classList.remove('no-scroll');
});
}
public confirm(contentOrConfig: any, title?: string): Observable<any> {
// 设置dialog的属性,宽度,高度,内容等。
let config = new MdDialogConfig();
config = {
width: '300px',
height: '200px'
};
if (contentOrConfig instanceof Object) {
config.data = contentOrConfig;
} else if ((typeof contentOrConfig) === 'string') {
config.data = {
content: contentOrConfig,
title: title
}
}
return this._confirmDialog.open(ConfirmDialogComponent, config).afterClosed();
}
}
4.使用例子
在需要使用的组件里的provides注册,就可以使用了,例子如下:
confirmDialog-example.component.ts
import { Component, OnInit, ViewEncapsulation, Inject } from '@angular/core';
import { confirmDialogService } from './confirmDialog.service';
@Component({
selector: 'confirmDialog',
templateUrl: 'confirmDialog-example.component.html',
providers: [confirmDialogService]
})
export class DialogExampleComponent implements OnInit {
lastCloseResult: any;
public constructor(public _confirmDialogService: confirmDialogService) { }
public confirm() {
this._confirmDialogService.confirm({ content: '确认删除吗?' }).subscribe(res => {
// 返回结果
if (res) {
this.lastCloseResult = "删除成功";
} else {
return;
}
});
}
public ngOnInit() { }
}
confirmDialog-example.component.html
<p>Last close result: {{lastCloseResult}}</p>
<button md-raised-button (click)="confirm()">删除</button>
确定删除后,返回结果: this.lastCloseResult = "删除成功"; 界面即显示删除成功,如上面的效果图示。
就这样完成了封装confirmDialog确定框的组件~
作者:LeeChingYin
链接:https://www.jianshu.com/p/0c566fc1730d
來源:简书
简书著作权归作者所有,任何形式的转载都请联系作者获得授权并注明出处。
posted on 2018-10-04 10:48 freeliver54 阅读(666) 评论(2) 编辑 收藏 举报