This is my home page code:
routes: {
'/second' : (context) => addExpence(),
},
my second-page code is:
FlatButton(
child: Text("Done".toUpperCase()),
onPressed: (){
Navigator.pop(context);
},
)
please note that both pages are in different files. Now the problem is that I am getting a black screen when popping from the First Page.
It's a natural thing to get a black screen when you pop from the first page because the Navigator will be empty. The only reason you're popping the first page is probably to close your app, for which you should use this method.
#Lewis Weng's answer is the correct one that works for me too.
if(Navigator.canPop(context)){
Navigator.of(context).pop();
}else{
SystemNavigator.pop();
}
Related
I have a list of Screens in a custom drawer.
Screen 1,
Screen 2,
Screen 3
What is the proper way of navigating from Screen 1 to Screen 2 on push of a button. Currently, I am losing the hamburger (the drawer button) option when I push or push replace.
The code I have was not written by me and I do not have access to the person who wrote the code.
Any thoughts?
Just use the standard navigation:
TextButton(
onPressed: (){
Navigator.push(context, MaterialPageRoute(builder: (context) => Screen2()));
}
child:
//child goes here
)
I have a Start screen with a pushNamed button.
How do I discard Start screen after I reached to rules Screen?
onPressed: () {
Navigator.of(context).pushNamed(
'/rules',
);
}
Refer Navigation documentation
You can use pushReplacementNamed instead of pushNamed.
By using this your first screen will be removed from the screen stack. In your case, if you use the below code your start screen will be replaced with rules screen.
onPressed: () {
Navigator.pushReplacementNamed(context, '/rules);
}
I try to build a flutter app and want to navigate trough the pages.
I build a drawer with a menu with several items to open new pages - that works fine.
onTap: () {
Navigator.of(context).pop();
Navigator.push(
context,
new MaterialPageRoute(
builder: (BuildContext context) => new Page1(),
),
);
},
By pressing on the Page1 menuitem page1 opens fine.
Inside page1 I have a slidable list with "edit" and "details". I open this with
onTap: () {
Navigator.of(context).pop();
Navigator.push(
context,
MaterialPageRoute(
builder: (BuildContext context) => new DetailsPage(),
),
);
},
In the details Page I see all the things i wanna see, but when I press the Back button in the appBar i am back at home screen with closed drawer.
I tried to put onPressed: () => Navigator.pop(context); inside the appBar section but this doesn´t work either.
Now I got what I want by using always Navigator.push but I am sure that this is not right, so that navigator stack gets bigger and bigger.
What I do wrong? Why .pop does not bring me to the last page?
Any ideas?
Thx in advance
Patrick
Just remove the line with the Navigator.of(context).pop();in the Page1 onTap.
you can use pushReplacement in any cases you need to remove current page from stack and route to new page.
Replace the current route of the navigator that most tightly encloses
the given context by pushing the given route and then disposing the
previous route once the new route has finished animating in.
here is the documentation
I want my flutter app to navigate from my last screen back to the home page. Currently, it navigates back to the previous page which I do not want.
onPressed: () {
Navigator.pop(context, MaterialPageRoute(builder: (context) => MyHomePage()));
},
I expect the button to return me back to the Home Page
If you don't use named routes you can simply replace your code with this:
onPressed: () {
Navigator.of(context).popUntil((route) => route.isFirst);
},
This will pop the navigation stack until it reaches the first item which might be your home page.
Can't you just use Navigator.pushAndReplace(MaterialPageRoute(builder: (context) => MyHomePage())); for navigation back to the home page?
Is there any method similar to this.finish() in android to finish current flutter activity.
Do you mean close current screen and come back to previous screen?
If that, Navigator.pop(context) should do the work. However, if you are at the entry screen (the first screen of the app and this screen has no parent screen/previous screen), Navigator.pop(context) will return you to a black screen. In this case, we have to use SystemNavigator.pop().
But don't use SystemNavigator.pop() for iOS, Apple says that the application should not exit itself :)
Below code will work on Android for both cases
if (Navigator.canPop(context)) {
Navigator.pop(context);
} else {
SystemNavigator.pop();
}
use Navigator.pushReplacement(BuildContext context, Route<T> newRoute) to open a new route which replace the current route of the navigator
use thie code
Navigator.pushReplacement(context,
MaterialPageRoute(builder: (context) {
return AddDemoUnitActivity();
}));