TypeScript App.getActiveNav方法代碼示例

  //Function to handle Errors
  handleError(error, expected?) {

    //TODO: Allow for overiding error codes, and using custom callbacks

    //Log the error
    console.log(error);

    //Get our status
    let status = error.status;

    //Check if we have any callbacks for specific error codes
    if (expected) {
      for (let i = 0; i < expected.length; ++i) {
        if (expected[i].status == status) {

          //Launch the call abck and return
          expected[i].callback();
          return;
        }

      }
    }

    if (status == 400) {
      //400 Bad Request
      this.showToast('Bad Request. Please ensure your input is correct.');
    } else if (status == 401) {
      //401 Unauthorized

      //Logout
      this.appAuth.logout();

      //Redirect to home
      let nav = this.app.getActiveNav();
      nav.setRoot(Home);

      //Toast the user
      this.showToast('Unauthorized. Please log back in.');
    } else if (status == 404) {

      //Toast the user
      this.showToast('Could not be found. Please ensure your input is complete and correct.');

    } else if (status == 500) {
      //Internal Server Error

      //Toast the user
      this.showToast('Internal Server Error. Please try making the request again, or at a later time.');
    } else {
      this.showToast('Error ' + status + ': Please Contact Developers for help.');
    }


  }

 private get nav() {
   return this.app.getActiveNav();
 }

  public redir(data: string): boolean {
    // TODO Injecting NavController in constructor of service fails with no provider error
    this.navCtrl = this.app.getActiveNav();

    // data extensions for Payment Protocol with non-backwards-compatible request
    if ((/^bitcoin(cash)?:\?r=[\w+]/).exec(data)) {
      let coin = 'btc';
      if (data.indexOf('bitcoincash') === 0) coin = 'bch';

      data = decodeURIComponent(data.replace(/bitcoin(cash)?:\?r=/, ''));

      this.payproProvider.getPayProDetails(data, coin).then((details) => {
        this.handlePayPro(details, coin);
      }).catch((err) => {
        this.popupProvider.ionicAlert(this.translate.instant('Error'), err);
      });

      return true;
    }

    data = this.sanitizeUri(data);
    let amount: string;
    let message: string;
    let addr: string;
    let parsed: any;
    let coin: string;

    // Bitcoin  URL
    if (this.bwcProvider.getBitcore().URI.isValid(data)) {
      this.logger.debug('Handling Bitcoin URI');
      coin = 'btc';
      parsed = this.bwcProvider.getBitcore().URI(data);
      addr = parsed.address ? parsed.address.toString() : '';
      message = parsed.message;
      amount = parsed.amount ? parsed.amount : '';

      if (parsed.r) {
        this.payproProvider.getPayProDetails(parsed.r, coin).then((details) => {
          this.handlePayPro(details, coin);
        }).catch((err: string) => {
          if (addr && amount) this.goSend(addr, amount, message, coin);
          else this.popupProvider.ionicAlert(this.translate.instant('Error'), err);
        });
      } else {
        this.goSend(addr, amount, message, coin);
      }
      return true;
      // Cash URI
    } else if (this.bwcProvider.getBitcoreCash().URI.isValid(data)) {
      this.logger.debug('Handling Bitcoin Cash URI');
      coin = 'bch';
      parsed = this.bwcProvider.getBitcoreCash().URI(data);
      addr = parsed.address ? parsed.address.toString() : '';

      // keep address in original format
      if (parsed.address && data.indexOf(addr) < 0) {
        addr = parsed.address.toCashAddress();
      };

      message = parsed.message;
      amount = parsed.amount ? parsed.amount : '';

      // paypro not yet supported on cash
      if (parsed.r) {
        this.payproProvider.getPayProDetails(parsed.r, coin).then((details: any) => {
          this.handlePayPro(details, coin);
        }).catch((err: string) => {
          if (addr && amount)
            this.goSend(addr, amount, message, coin);
          else
            this.popupProvider.ionicAlert(this.translate.instant('Error'), err);
        });
      } else {
        this.goSend(addr, amount, message, coin);
      }
      return true;

      // Cash URI with bitcoin core address version number?
    } else if (this.bwcProvider.getBitcore().URI.isValid(data.replace(/^bitcoincash:/, 'bitcoin:'))) {
      this.logger.debug('Handling bitcoincash URI with legacy address');
      coin = 'bch';
      parsed = this.bwcProvider.getBitcore().URI(data.replace(/^bitcoincash:/, 'bitcoin:'));

      let oldAddr = parsed.address ? parsed.address.toString() : '';
      if (!oldAddr) return false;

      addr = '';

      let a = this.bwcProvider.getBitcore().Address(oldAddr).toObject();
      addr = this.bwcProvider.getBitcoreCash().Address.fromObject(a).toString();

      // Translate address
      this.logger.debug('address transalated to:' + addr);
      let title = this.translate.instant('Bitcoin cash Payment');
      let msg = this.translate.instant('Payment address was translated to new Bitcoin Cash address format: {{addr}}', { addr });
      this.popupProvider.ionicConfirm(title, msg).then((res: boolean) => {
        if (!res) return false;

        message = parsed.message;
        amount = parsed.amount ? parsed.amount : '';
//.........這裏部分代碼省略.........