Flutter Event Handling: Add logical code: Flutter Tutorial for Beginners using Dart #3.7

[@karthickrajalearn]

In 8m 44sec Thanks for Showing Details purposes of Exception We have to write and handle the code

[@factworld4375]

Thank you. Your videos always boost my energy to learn new technologies.

[@ankitchopkar7787]

hello sir please upload the video of when user use one button and do the two conditions are work, for example i enter amount , gst percentage select dropdownlist gst exclusive, and press calculate button on the other hand select gst inclusive in dropdown and press calculate button so tell me

[@MdEmon-fi7xx]

Thanks A lot

[@adesinaolusegunabiola9615]

Thanks @Smartherd, even though i get to see this video years after it has been uploaded yet i must confess its top notch. God bless you. pls i have been strugling with section 3.7 for about 2days now and i seem not to find a solution to the bug. onChanged: (String newValueSelected) { // Your code to execute, when a menu item is selected from dropdown _onDropDownItemSelected(newValueSelected); }, The error i'm getting is The argument type 'void Function(String)' can't be assigned to the parameter type 'void Function(String?)?'. Kindly help. thanks

[@nanthchakkhamhoung4144]

Add ? after String onChanged: (String? newValueSelected) Also, add ? after String at _onDropDownItemSelected method void _onDropDownItemSelected(String? newValueSelected){ setState(() { this._currentItemSelected = newValueSelected.toString(); }); } Not sure if it's good practice but it works.

[@Rabab-Rhythms]

i need code of this vedio but the link you mention below says that the service is unavailable,error 503.i tried alot of time.what to do

[@floridosmarpepa8904]

I didn't understand the double.parse . It makes a string to a double? so that we can put in the double declared variable?

[@michaelb2793]

Even if a number is entered in the Text field it is still a string, can't do (string + string) so you have to convert them to numbers first, before doing calculations.

[@lalatkishorechoudhur]

Thank you Sir.....

[@bestblue6778]

thank bro

[@green4ao]

Is there any difference between controller.text = ' '; and controller.clear(); ?

[@raul286162]

One is more straightforward than the other.

[@shahanazputul6265]

TexField Widget overlap and hide by soft keyboard when it focus, how I will be solved, I am doing same to same copy and past your code. Otherwise everything is perfect.

[@SuyogyaRatnaTamrakar]

I fixed that by enclosing the Scaffold widget's body in build() method with a Gesture Detector, it allows you to tap anywhere outside your current textfield, to dismiss the soft keyboard. Code snippet: @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( backgroundColor: Colors.indigo, title: Text("Simple Interest Calculator"), ), body: GestureDetector( behavior: HitTestBehavior.opaque, onTap: () => FocusScope.of(context).requestFocus(FocusNode()), child: Container( margin: EdgeInsets.all(_minimumPadding * 2.0), child: ListView( children: [ getImageAsset(), ...... ......

[@cedric_ds]

6:04 I have a separate class for my custom CurrenciesDropDownButton (for cleaner Code). How can I access my currentCurrency property in the State to use it in the Text like you? I hope you understand what I mean. same for 6:58