By using the then function we can handle the code after dialog dismiss In the above code when "isShow" value is false then i am going to show the Dialog and while showing the dialog set variable "isShow" to true After dismiss the dialog again set the value to fasle, so that ican show the dialog alternatively, but when i press the back button this will not set the "isShow" to fasle, for the next iteration it will not show the Dialog. To handle this scenario i have added then() function for the showDialog. Let's updated code is isShow=false; By this way we can hanlde back button event also.
isShow=false;
if( isShow==fasle){
showDialog(
context: context,
builder: (BuildContext context) {
// return object of type Dialog
return AlertDialog(
title: new Text("Alert Dialog title"),
content: new Text("Alert Dialog body"),
actions: <Widget>[
// usually buttons at the bottom of the dialog
new FlatButton(
child: new Text("Close"),
onPressed: () {
isShow = false;
Navigator.of(context).pop();
},
),
],
);
},
)
}
if( isShow==fasle){
showDialog(
context: context,
builder: (BuildContext context) {
// return object of type Dialog
return AlertDialog(
title: new Text("Alert Dialog title"),
content: new Text("Alert Dialog body"),
actions: <Widget>[
// usually buttons at the bottom of the dialog
new FlatButton(
child: new Text("Close"),
onPressed: () {
isShow = false;
Navigator.of(context).pop();
},
),
],
);
},
)
.then((value){
isShow = false;
});
How do we save the data in browser's cookies using the Flutter web?
How to copy text from Text Widget flutter?
How do i make CachedNetwork image as rounded circle in flutter?
How to change package name in flutter?
What corresponds to Intent in Flutter?
How do I open a web browser (URL) from my Flutter code?
How to fix Flutter: error:MissingPluginException(No implementation found for method)
How to check the given value is a number or not in dart?
How do i make circular icon Inside Button ?
How to create Gradient background for AppBar in Flutter
How to make a widget Center vertically inside a SingleChildScrollView
How to fix Flutter Bottom OverFlowed error A RenderFlex overflowed by XX pixels on the bott
How to Close Flutter application Programmatically?
How to handle the code after showDialog is dismissed in Flutter?
Navigator operation requested with a context that does not include a Navigator.
How do i change the OutlineInputBorder color?
How do i make TextButton full width in flutter?
Flutter - Vertical Divider - How to add Vertical Divider?
How do I supply/set an initial value to a text field in Flutter ?
How does Flutter load images?
Vertical Divider is Not Showing in my Flutter Application
How to remove Yellow lines under Text Widgets in Flutter?
How to change the application launcher icon on Flutter?
Error : MediaQuery.of() called with a context that does not contain a MediaQuery No MediaQuery ances
How can i use hexadecimal color code in Flutter?
How to set the TextFormField/TextField border color
How to create Toast in Flutter?
How can i get document id in Flutter Firestore?
How to place a listview inside a SingleChildScrollView but prevent them from scrolling separately?
How to convert a String value to double in flutter?
Can we use Container color and decoration properties at once?
How to make shadow for Container widget Flutter?
OS Error: A required privilege is not held by the client errno = 1314
How to display snackbar infinite duration in a flutter application
How to find the Screen orientation in flutter
How to navigate to new screen without back screen
Cannot run with sound null safety because dependencies don't support null safety, I have receive
What is Flutter?
How to deactivate back button in flutter?
Flutter Questions and Answers