离子本机打印机插件不起作用 [英] Ionic native Printer plugin not working

问题描述

(离子 2)位于此处的插件在 android 和 ios 上似乎对我不起作用:http://ionicframework.com/文档/本机/打印机/

(Ionic 2) The plugin located here seems to not work for me on android and ios : http://ionicframework.com/docs/native/printer/

我认为我遵循了这个页面的指导方针，代码正在两个平台上构建，但我在 ios 上出现黑屏，在 android 上模拟时出现空白...

I think that I followed the guidelines from this page, the code is building on both platforms but I got a black screen on ios and a blank one on android when emulate ...

首先我开始了一个新项目:ionic start PrinterApp --v2

First I started a new project : ionic start PrinterApp --v2

然后我安装了平台:android 6.2.1, ios 4.3.1

然后是插件页面的两个命令行:

Then the two command lines from the plugin page :

ionic plugin add --save de.appplant.cordova.plugin.printer
npm install --save @ionic-native/printer

然后在 home.html 中添加一行来激活打印机:

Then in the home.html I put a line to active the printer :

<button class="button" (click)="print()">Print</button>

最后我的 home.ts 看起来像这样:

And finally my home.ts looks like this :

import { Component } from '@angular/core';
import { NavController } from 'ionic-angular';
import { Printer, PrintOptions } from '@ionic-native/printer';

@Component({
  selector: 'page-home',
  templateUrl: 'home.html'
})
export class HomePage {

  constructor(public navCtrl: NavController, private printer: Printer) {
  }

  print() {
     this.printer.isAvailable();
    let options: PrintOptions = {
         name: 'MyDocument',
         duplex: true,
         landscape: true,
         grayscale: true
       };
    this.printer.print("http://google.com", options);
  }
}

有没有人遇到过这种插件的问题?我做错什么了吗 ?我应该安装其他东西来解决问题吗?有没有人有一个运行良好的示例项目?

Did anyone have this kind of troubles with the plugin ? Did I do something wrong ? Should I install other things to fix the problem ? And did anyone have a exemple project working well ?

非常感谢！

推荐答案

在 Suraj 和 Gabriel 的帮助下，我设法解决了这个问题，我需要去这个页面获取信息:http://ionicframework.com/docs/native/#Add_Plugins_to_Your_App_Module

With the help of Suraj and Gabriel I managed to fix the problem, I needed to go to this page to get informations : http://ionicframework.com/docs/native/#Add_Plugins_to_Your_App_Module

所以输入这一行:npm install @ionic-native/core --save

And so typing this line : npm install @ionic-native/core --save

然后进入我的 App.Module.ts 添加打印机提供程序，如下所示:

Then into my App.Module.ts adding printer provider like this :

import { NgModule, ErrorHandler } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { IonicApp, IonicModule, IonicErrorHandler } from 'ionic-angular';
import { MyApp } from './app.component';

import { AboutPage } from '../pages/about/about';
import { ContactPage } from '../pages/contact/contact';
import { HomePage } from '../pages/home/home';
import { TabsPage } from '../pages/tabs/tabs';

import { StatusBar } from '@ionic-native/status-bar';
import { SplashScreen } from '@ionic-native/splash-screen';

import { Printer, PrintOptions } from '@ionic-native/printer';

@NgModule({
  declarations: [
    MyApp,
    AboutPage,
    ContactPage,
    HomePage,
    TabsPage
  ],
  imports: [
    BrowserModule,
    IonicModule.forRoot(MyApp)
  ],
  bootstrap: [IonicApp],
  entryComponents: [
    MyApp,
    AboutPage,
    ContactPage,
    HomePage,
    TabsPage
  ],
  providers: [
    StatusBar,
    SplashScreen,
    Printer,
    {provide: ErrorHandler, useClass: IonicErrorHandler}
  ]
})
export class AppModule {}

再次感谢！祝你有美好的一天

Thanks again ! Have a great day

这篇关于离子本机打印机插件不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！