ionic3查看pdf文件

第一步，在项目目录中安装pdf.js组件

npm i pdfjs-dist@1.9.607  （高版本会报错）

npm install ‑‑save‑dev @types/pdfjs‑dist

第二步

安装ng2-pdf-viewer@3.0.8 （项目angular版本为4.x以下安装此版本）

第三步，在项目中新建页面

ionic g page pdf-viewerPage

 第四步，在app.module.ts添加代码，只贴出添加的代码

import {PdfViewerModule} from 'ng2-pdf-viewer';  

@NgModule({
    imports: [      
        PdfViewerModule,
    ]
})

 第四步，实现方式是点击触发模态框，让PDF文件在模态框中渲染。先在需要响应点击事件的页面写代码

<div class="puma-common-info puma-info-affix" *ngFor="let item of data.attachment">
        <div class="puma-common-message puma-common-btn">
          <p class="puma-common-title">{{item.attachmentKey}}</p>
          <button ion-button round small color="colorCD9F" (click)="shareButtonSheet(item.attachmentVal,item.attachmentKey)">查看</button>
        </div>
      </div>

//ts文件
import { ModalController } from 'ionic-angular';
@Component({
    selector: 'xxxx-home',
    templateUrl: 'xxxx.html'
})
export class XxxxPage {

URL= "https://www.thymeleaf.org/doc/tutorials/3.0/usingthymeleaf.pdf";

constructor(public modaCtrl: ModalController ) {
  
  }

 /*
  * 分享PDF文件
  * */
  shareButtonSheet(url,fileName)
  {
    let modal = this.modaCtrl.create("xxxPage",{url:url,fileName:fileName});
    modal.present();
  }
}

//module.ts
import {PdfViewerModule} from 'ng2-pdf-viewer';
@NgModule({
  imports: [
    IonicPageModule.forChild(xxxPage),PdfViewerModule
  ],
})

 第五步，写响应模态框请求的页面pdf-viewer.html

<ion-content padding  >
  <pdf-viewer [src]="displayData.pdfSource"
              [show-all]="true"
              [original-size]="false"
              [zoom]=1
              [render-text]="false"
              [autoresize]="true"
              style="display: block" >
  </pdf-viewer>
</ion-content>

 第六步，pdf-viewer.ts

 public pdf: boolean = false;
  constructor(public navCtrl: NavController, public navParams: NavParams) {
    this.initData();
  }    

 /*
  * 初始化数据
  * */
  initData() {
    this.title = this.navParams.get("fileName");
    this.url = this.navParams.get("url");
  }

参考链接

https://www.jianshu.com/p/0012e9b37785

https://www.saninnsalas.com/using-pdf-js-with-ionic-3-x/

https://github.com/VadimDez/ng2-pdf-viewer/issues/210

https://github.com/VadimDez/ng2-pdf-viewer

https://www.npmjs.com/package/pdfjs-dist