How to use the ionic-native.PinDialog.prompt function in ionic-native

removePin() {
    //PinDialog.prompt('請輸入密碼', '關閉密碼', ['確認', '取消'])
    PinDialog.prompt(this.RemovePinPromptMsg,this.RemovePinTitle, [this.RemovePinConfirmBtn, this.RemovePinCancelBtn])
    .then((result: any) => {
      if (result.input1 === this.configServ.getUserPin()) {
        this.storage.set('userPin', '');
        this.userPin = '';
        this.configServ.setUserPin('');
        this.configServ.setPauseEmitted('N');
        this.enableLock = !this.enableLock;
        this.toastMessage(this.RemovePinDoneMsg);    // 密碼鎖已關閉
      } else {
        this.toastMessage(this.RemovePinAlertMsg);   // 密碼錯誤
      }
    });
  }

var _this = this;
        var canEnter = false;
        var message; // 請輸入密碼
        var title; // 解除密碼鎖
        var btnConfirm; // 確認
        var btnCancel; // 取消
        var alertMessageSuccess; // 成功解除密碼鎖
        var alertMessageError; // 密碼錯誤
        this.localServ.localize('CONFIG_SERV.MESSAGE', function (value) { message = value; });
        this.localServ.localize('CONFIG_SERV.TITLE', function (value) { title = value; });
        this.localServ.localize('CONFIG_SERV.BTN_CONFIRM', function (value) { btnConfirm = value; });
        this.localServ.localize('CONFIG_SERV.BTN_CANCEL', function (value) { btnCancel = value; });
        this.localServ.localize('CONFIG_SERV.ALERT_MSG_SUCCESS', function (value) { alertMessageSuccess = value; });
        this.localServ.localize('CONFIG_SERV.ALERT_MSG_ERROR', function (value) { alertMessageError = value; });
        if (this.getPauseEmitted() === 'Y' && this.getUserPin().length >= 4) {
            PinDialog.prompt(message, title, [btnConfirm, btnCancel])
                .then(function (result) {
                if (result.buttonIndex === 1) {
                    if (result.input1 === _this.getUserPin()) {
                        _this.alertMessage(alertMessageSuccess);
                        _this.setPauseEmitted('N');
                        canEnter = true;
                    }
                    else {
                        _this.alertMessage(alertMessageError);
                        canEnter = false;
                    }
                }
                else {
                    canEnter = false;
                }
            });

confirmPin(pin: string) {
    //PinDialog.prompt('請重複輸入密碼', '確認密碼', ['確認', '取消'])
    PinDialog.prompt(this.ConfirmPinPromptMsg, this.ConfirmPinTitle, [this.ConfirmPinConfirmBtn, this.ConfirmPinCancelBtn])
    .then((result: any) => {
      if (result.buttonIndex === 1) {
        if (result.input1 === pin) {
          this.userPin = result.input1;
          this.storage.set('userPin', this.userPin);
          this.configServ.setUserPin(this.userPin);
          this.configServ.setPauseEmitted('N');
          this.enableLock = !this.enableLock;
          this.toastMessage(this.ConfirmPinDoneMsg);      // 密碼鎖已開啟
        } else {
          this.toastMessage(this.ConfirmPinAlertMsg);   // 密碼不一致，請重新設定
        }
      }
    });
  }

addPin() {
    //PinDialog.prompt('請輸入至少4個數字的密碼', '設定密碼', ['確認', '取消'])
    PinDialog.prompt(this.addPinPromptMsg, this.addPinTitle, [this.addPinConfirmBtn, this.addPinCancelBtn])
    .then((result: any) => {
      if (result.buttonIndex === 1) {
        if (result.input1 !== null && result.input1.trim().length >= 4) {
          this.confirmPin(result.input1);
        } else {
          this.toastMessage(this.addPinPromptMsg);  // 請輸入至少4個數字的密碼
        }
      }
    });
  }

PinConfigPage.prototype.addPin = function () {
        var _this = this;
        //PinDialog.prompt('請輸入至少4個數字的密碼', '設定密碼', ['確認', '取消'])
        PinDialog.prompt(this.addPinPromptMsg, this.addPinTitle, [this.addPinConfirmBtn, this.addPinCancelBtn])
            .then(function (result) {
            if (result.buttonIndex === 1) {
                if (result.input1 !== null && result.input1.trim().length >= 4) {
                    _this.confirmPin(result.input1);
                }
                else {
                    _this.alertMessage(_this.addPinAlertMsg);
                }
            }
        });
    };
    PinConfigPage.prototype.confirmPin = function (pin) {

PinConfigPage.prototype.confirmPin = function (pin) {
        var _this = this;
        //PinDialog.prompt('請重複輸入密碼', '確認密碼', ['確認', '取消'])
        PinDialog.prompt(this.ConfirmPinPromptMsg, this.ConfirmPinTitle, [this.ConfirmPinConfirmBtn, this.ConfirmPinCancelBtn])
            .then(function (result) {
            if (result.buttonIndex === 1) {
                if (result.input1 === pin) {
                    _this.storage.set('userPin', result.input1);
                    _this.userPin = result.input1;
                    _this.configServ.setUserPin(result.input1);
                    _this.configServ.setPauseEmitted('Y');
                    _this.enableLock = !_this.enableLock;
                    _this.appCtrl.getRootNav().setRoot(HomePage);
                }
                else {
                    _this.alertMessage(_this.ConfirmPinAlertMsg);
                }
            }
        });
    };

unlockScreen(): boolean {
    let canEnter: boolean = false;

    if (this.getPauseEmitted() === 'Y' && this.getUserPin().length >= 4) {
      PinDialog.prompt('請輸入密碼', '解除密碼鎖', ['確認', '取消'])
      .then((result: any) => {
        if (result.buttonIndex === 1) {
          if (result.input1 === this.getUserPin()) {
            this.toastMessage('成功解除密碼鎖');
            this.setPauseEmitted('N');
            canEnter = true;
          } else {
            this.toastMessage('密碼錯誤');
            canEnter = false;
          }
        } else {
          canEnter = false;
        }
      });
    } else {
      canEnter = true;

PinConfigPage.prototype.removePin = function () {
        var _this = this;
        //PinDialog.prompt('請輸入密碼', '關閉密碼', ['確認', '取消'])
        PinDialog.prompt(this.RemovePinPromptMsg, this.RemovePinTitle, [this.RemovePinConfirmBtn, this.RemovePinCancelBtn])
            .then(function (result) {
            if (result.input1 === _this.configServ.getUserPin()) {
                _this.storage.set('userPin', '');
                _this.userPin = '';
                _this.configServ.setUserPin('');
                _this.configServ.setPauseEmitted('N');
                _this.enableLock = !_this.enableLock;
                _this.appCtrl.getRootNav().setRoot(HomePage);
            }
            else {
                _this.alertMessage(_this.RemovePinAlertMsg);
            }
        });
    };
    PinConfigPage.prototype.alertMessage = function (msg) {