GMS

Gas Management System Android application

small note

the password for all Activity is the same 123 the user name is mgr , age , rep , aqe

for qr scanner code , I have used this :

in gradle.app I will add these :

implementation 'com.google.zxing:core:3.4.1' implementation 'com.journeyapps:zxing-android-embedded:4.2.0'

for java code I will use these instructions :

            IntentIntegrator integrator = new IntentIntegrator(activity);
            integrator.setDesiredBarcodeFormats(IntentIntegrator.QR_CODE);
            integrator.setPrompt("scan");
            integrator.setBeepEnabled(false);
            integrator.initiateScan();

note : these do check permission also.

and I will use onActivityResult function

@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable @org.jetbrains.annotations.Nullable Intent data) {
    IntentResult result = IntentIntegrator.parseActivityResult(requestCode , resultCode , data);
    if(result !=null)
    {
        if(result.getContents() ==null)
        {
            Toast.makeText(getBaseContext() , "you canceled the scan" , Toast.LENGTH_SHORT).show();
        }
        else
        {
            Toast.makeText(getBaseContext() , result.getContents()  ,Toast.LENGTH_SHORT).show();
        }
    }
   
    else {
        super.onActivityResult(requestCode, resultCode, data);
    }
}

notice that the code we have used it for that is the code int if statement block and do it before calling super method