Question

我正在使用Ionic 3，我刚刚添加了一个指纹插件

下面是代码段

import { FingerprintAIO } from "@ionic-native/fingerprint-aio/ngx";

 constructor(private fingerPrintProvider : FingerprintAIO ){}


            this.fingerPrintProvider.isAvailable().then((result)=>{
                        console.log(result);
                        if(result == 'finger' || result == 'face'){
                            //Fingerprint or Face auth available
                            console.log('Fingerprint or face exist!');
                            self.fingerPrintProvider.show({
                                clientId: 'RetraxFingerPrint',
                                clientSecret: 'RetraxFingerPrint', //Only necessary for Android
                                disableBackup: true, //Only for Android(optional)
                                localizedFallbackTitle: 'Use Pin', //Only for iOS
                                localizedReason: 'Please Authenticate' //Only for iOS
                            })
                            .then((result)=>{
                                console.log(result);
                            }) 
                            .catch((error) => {
                                //Fingerprint/Face was not successfully verified          
                                console.log(error);
                            });
                        }
                        else {
                            //Fingerprint or Face Auth is not available        
                            console.log("Fingerprint/Face Auth is not available on this device!")
                        }
                    })

RxJs版本如下所示

“ rxjs”：“ 5.5.2”

其他依赖性如下所示

"dependencies": {
    "@angular/animations": "5.0.3",
    "@angular/common": "5.0.3",
    "@angular/compiler": "5.0.3",
    "@angular/compiler-cli": "5.0.3",
    "@angular/core": "5.0.3",
    "@angular/forms": "5.0.3",
    "@angular/http": "5.0.3",
    "@angular/platform-browser": "5.0.3",
    "@angular/platform-browser-dynamic": "5.0.3",
    "@ionic-native/android-permissions": "^4.12.2",
    "@ionic-native/badge": "^4.18.0",
    "@ionic-native/camera": "^4.7.0",
    "@ionic-native/core": "4.4.0",
    "@ionic-native/crop": "^4.7.0",
    "@ionic-native/deeplinks": "^4.6.0",
    "@ionic-native/document-viewer": "^4.11.0",
    "@ionic-native/file": "^4.7.0",
    }

但是当我提供离子性服务时，我得到以下错误消息，这是依赖性问题还是代码有问题？

TypeError：Object（...）不是函数在FingerprintAIO.isAvailable

Any help appreciated.

Answer 1

您应该将插件的版本降级为@ 4。从Ionic 3文档中：

$ ionic cordova plugin add cordova-plugin-fingerprint-aio 
$ npm install --save @ionic-native/fingerprint-aio@4

并在没有/ngx

的情况下导出

https://ionicframework.com/docs/v3/native/fingerprint-aio/

Answer 2

您应该运行以下命令：

npm install @ionic-native/fingerprint-aio@5.22.0-beta-1

TypeError：在ionic 3中使用指纹插件时Object（...）不是函数

2 个答案: