TouchID的方法不存在！(离子2)

Question

i正在尝试测试离子2中的触摸ID，但它不起作用。

    export class HomePage {
  private touchIdAvailable: boolean;
  constructor(public _navCtrl: NavController, private _platform: Platform) {
    this._platform.ready().then(() => {
      TouchID.isAvailable().then(
        res => alert('ok'),
        err => alert('not ok')
      );
      this.touchIdAvailable = true;
    })
  }

  private startTouchID() {
    TouchID.verifyFingerprint('Fingerprints are Awesome')
      .then(
        res => alert('Pass'),
        err => alert('Not Pass')
      );
  }
}

此代码不起作用。因此，如果我对代码的这一部分发表评论！

    this._platform.ready().then(() => {
      //TouchID.isAvailable().then(
      //  res => alert('tem'),
      //  err => alert('nao tem')
      //);
      this.touchIdAvailable = true;
    })

我得到错误：proprety'isavaliable（）'在'typeof touchid'

Answer 1

我找到了。

in/node_modules/ionic-native/dist/plugins/touchid.d.t.t.ts on 46 i更改：

isAvailable(): Promise<any>;

与此：

static isAvailable(): Promise<any>;

Answer 2

您不必编辑node_modules/ionic-native/dist/plugins/touchid.d.ts

只是在构造函数中初始化 TouchId实例。

  constructor(
    private touchId: TouchID
  ) {
    this.platform.ready().then(() => {
      this.touchId.isAvailable().then(
        res => this.touchIdAvailable = true,
        err => this.touchIdAvailable = false
      );          
    })
  }