PERMANENTLY CONNECT

[Alekie74]

how can I tie the connected printer so that no need to connect every time the application is loaded.

[calimba]

Try this

final myDevice = BluetoothDevice.fromMap({
      'name': data['name'],
      'address': data['address'],
      'type': data['type']
});

[Alekie74]

where do I put this code?

…

On Fri, May 14, 2021 at 10:23 AM calimba ***@***.***> wrote: Try this final myDevice = BluetoothDevice.fromMap({ 'name': data['name'], 'address': data['address'], 'type': data['type'] }); — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#77 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AFSGZW6ZK7GOV37JBARXWSDTNTFY3ANCNFSM44JGZBGA> .

[Alekie74]

Hi Calimba, Kindly guide on where I should insert this piece of code for the bluetooth printer to be permanently remembered whenever the printing is done. On Tue, May 25, 2021 at 4:29 PM ALEXANDER KITHOME ***@***.***> wrote:

…

where do I put this code? On Fri, May 14, 2021 at 10:23 AM calimba ***@***.***> wrote: > Try this > final myDevice = BluetoothDevice.fromMap({ 'name': data['name'], > 'address': data['address'], 'type': data['type'] }); > > — > You are receiving this because you authored the thread. > Reply to this email directly, view it on GitHub > <#77 (comment)>, > or unsubscribe > <https://github.com/notifications/unsubscribe-auth/AFSGZW6ZK7GOV37JBARXWSDTNTFY3ANCNFSM44JGZBGA> > . >

[calimba]

I do this

void _checkIfLoggedIn() async {
      SharedPreferences localStorage = await SharedPreferences.getInstance();
      var token = localStorage.getString('token');
      var userJson = localStorage.getString('user'); 
      var user = json.decode(userJson);
      var stringValue = user['dispositivo'].toString();
      var stringValue2 = user['address'].toString();
      var stringValue3 = user['tipo'];
      if(token != null){
        setState(() => {
            _isLoggedIn = true,
            userData = user,
            _dispositivo = stringValue,
            _direccion = stringValue2,
            _tipo = stringValue3
        });
      }

      if(_direccion != null){

          final myDevice = BluetoothDevice.fromMap({
            'name': _dispositivo,
            'address': _direccion,
            'type': _tipo
        });

        bluetooth.isConnected.then((isConnected) {
          
            if (!isConnected) {
              
              bluetooth.connect(myDevice).catchError((error) {
                setState(() {
                  _connected = false;
                  });
              });
            }
          });
      }
  }

[ebrahimmansur]

i used the root widget with the widget life cycle mixing to invoke the search and connect and disconnect with the bluetooth device

[Alekie74]

Kindly expound. Regards, Alex Kithome.

…

On Sun, Oct 24, 2021 at 12:05 PM E.Mansur ***@***.***> wrote: i used the root widget with the widget life cycle mixing to invoke the search and connect with the bluetooth device — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#77 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AFSGZW4SENORXPRWBSZ2HB3UIPD5TANCNFSM44JGZBGA> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.

[ebrahimmansur]

Here is the approach.....

• make a statefull widget with a mixin widget binding observe and call it for example app Life cycle and implement the function

• wrap the root screen of your app with the app life cycle widget

• inside the app cycles widget will hold a list of services that need to start or stop based on the app life cycle...
  Make an interface that has a

  • onAppStart
    --onAppClosed
    And have all the services implement them ...and based on the life cycle state invoke the onStart or onclosed

....if you need more explanation here is my
LinkedIn handler

https://www.linkedin.com/in/ebrahim-mansur-51b526202