0
321
Visualizaçõesno provider for BarcodeScanner
The code is as follows:
import { Component } from '@angular/core';
import { NavController, Platform } from 'ionic-angular';
import { TranslateService } from '@ngx-translate/core';
import { BarcodeScanner } from '@ionic-native/barcode-scanner';
@Component({
selector: 'page-home',
templateUrl: 'home.html'
})
export class HomePage {
constructor(public navCtrl: NavController, private translate: TranslateService, private barcodeScanner: BarcodeScanner) {
}
//Switch language
changelanguage() {
let browserLang = this.translate.currentLang;
this.translate.use(browserLang.match(/en/) ? 'zh' : 'en');
}
//Scan test
ScanCode() {
this.barcodeScanner.scan()
.then((result) => {
console.log(result);
})
.catch((error) => {
alert(error);
});
}
}
Error Picture:
Reference：https://ionicframework.com/docs/native/barcode-scanner/
new questions arose:
According to Suraj recommendations, the prompt "plugin_not_installed"
Error Picture:
development environment:
Visual Studio 2017
3 Respostas
Responde à pergunta0
You need to set the scanner as provider in app.module.ts
import { BarcodeScanner } from '@ionic-native/barcode-scanner';
@NgModule({
...
providers: [
...
BarcodeScanner
...
]
...
})
export class AppModule { }
Reference: Add Plugins to Your App's Module here
UPDATE:
From your package.json it looks like you have installed older ionic-native - 2.4.1.Remove it and do:
npm install --save @ionic-native/core
0
I have same issue with ionic cli 3.9.2 & solved using npm i @ionic-native/barcode-scanner@beta --save.
import { BarcodeScanner } from "@ionic-native/barcode-scanner/ngx";
@NgModule({
...
providers: [
...
BarcodeScanner
...
]
...
})
export class AppModule { }
0
I got same issue at android device after installing ionic cordova plugin add phonegap-plugin-barcodescanner --save which error message is plugin_not_installed. Just added CAMERA_USAGE_DESCRIPTION variable inside phonegap-plugin-barcodescanner tag at config.xml and working :)
<plugin name="phonegap-plugin-barcodescanner" spec="^7.0.1">
<variable name="CAMERA_USAGE_DESCRIPTION" value=" " />
</plugin>