Flutter: Scrolling to a widget in ListView

By far, the easiest solution is to use Scrollable.ensureVisible(context). As it does everything for you and work with any widget size. Fetching the context using GlobalKey. The problem is that ListView won’t render non-visible items. Meaning that your target most likely will not be built at all. Which means your target will have no context … Read more

Flutter: How to correctly use an Inherited Widget?

The problem comes from your quote, which is incorrect. As you said, InheritedWidgets are, like other widgets, immutable. Therefore they don’t update. They are created anew. The thing is: InheritedWidget is just a simple widget that does nothing but holding data. It doesn’t have any logic of update or whatsoever. But, like any other widgets, … Read more

Flutter.io Android License Status Unknown

Just install the sdk command line tool(latest) the below in android studio. Then run: flutter doctor –android-licenses After which you should get: coolcoders@myhost ~ % flutter doctor –android-licenses 5 of 7 SDK package licenses not accepted. 100% Computing updates… Review licenses that have not been accepted (y/N)? y …and then you’ll get a whole bunch … Read more

How to make flutter app responsive according to different screen size?

Using MediaQuery class: MediaQueryData queryData; queryData = MediaQuery.of(context); MediaQuery: Establishes a subtree in which media queries resolve to the given data. MediaQueryData: Information about a piece of media (e.g., a window). To get Device Pixel Ratio: queryData.devicePixelRatio To get width and height of the device screen: queryData.size.width queryData.size.height To get text scale factor: queryData.textScaleFactor Using … Read more

How to solve Flutter CERTIFICATE_VERIFY_FAILED error while performing a POST request?

In order to enable this option globally in your project, here is what you need to do: In your main.dart file, add or import the following class: class MyHttpOverrides extends HttpOverrides{ @override HttpClient createHttpClient(SecurityContext? context){ return super.createHttpClient(context) ..badCertificateCallback = (X509Certificate cert, String host, int port)=> true; } } In your main function, add the following … Read more

How to make an AlertDialog in Flutter?

One Button showAlertDialog(BuildContext context) { // set up the button Widget okButton = TextButton( child: Text(“OK”), onPressed: () { }, ); // set up the AlertDialog AlertDialog alert = AlertDialog( title: Text(“My title”), content: Text(“This is my message.”), actions: [ okButton, ], ); // show the dialog showDialog( context: context, builder: (BuildContext context) { return … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)