Hi I am currently trying to validate a text and number field and using TextFormField widget but even though i have defined validator, it gives no any effect. TextFormField( controller: _zipcode, keyboardType: TextInputType.number, validator: (value) { if (value==null || value.isEmpty…
I'm trying to debug my application for the first time on a real device and found this error Error: ADB exited with exit code 1 Performing Streamed Install adb: failed to install S:Workegy_servy_client_appbuildappoutputsflutter-apkapp.apk: Failure [INSTALL_FAILED_INSUFFICIENT_STORAGE] Error launching application on PRA…
I have 100 sample of data coming from microcontroller via bluetooth in a form of Uint8List continuously. The data is coming through bluetooth buffer and I am using flutter bluetooth serial package to receive data via bluetooth. The data is…
I am trying to insert a document into my Mongo Database using the package mongo_dart var db = await Db.create(MONGO_CONN_STRING); await db.open(); var coll = db.collection('reports'); await coll.insertOne({ "username": "Tom", "action": "test", "dateTime": "today", }); Runtime error on line 4…
I recently updated dart and flutter and after that I am getting this error when trying Pug Get: C:flutterflutterbinflutter.bat --no-color pub upgrade Resolving dependencies... Git error. Command: `git fetch` stdout: stderr: fatal: unable to connect to github.com: github.com[0: 140.82.113.3]: errno=Unknown…
I have seen answers on the internet but in all of them the OP has used StatelessWidget rather than StatefulWidget. i have used a StatefulWidget but still setState() is not recognized Kindly refer to line 43 of the code. Hi!…
I have a list containing few elements like this: [1, 1, 2, 2, 3, 3]. I want to combine these numbers into one number without summing them so I want the final number to be: 112233; Is there a way…
Flutter Splash Screen Pubspec.YAML code- flutter_native_splash: ^2.0.1+1 flutter_native_splash: image: assets/images/splashScreen.png color: "#c988be" Styles.xml - style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar"> <!-- Show a splash screen on the activity. Automatically removed when Flutter draws its first frame --> <item name="android:windowBackground">@drawable/launch_background</item> <item name="android:windowFullscreen">true</item> </style>
Flutter shows error Non-nullable instance field '_areas' must be initialized. Maybe this is because of not defining null in lists areas what when defining null Like List? _areas; it shows an error on the index Error: Field '_areas' should be…
I wa using flutter bluetooth serial package to recieve data from a microcontroller. When i send integer values from the microcontroller, I get the values in this form: [64], [144, 22]] the last number in the list(22) is the actual…