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this is the class for creating category cards
and this is where am i trying to pass AssetImage parameter but shows error
Can someone tell me how to pass image address as argument if possible
Hello using your reference https://i.stack.imgur.com/DHQZm.png
I suggest in line number 91 instead of passing AssetImage pass the argument in a String type which contains the path of your image file
Example :
CategoryCard(
image : "image_path",
"title" : "Free",
"press" : (){},
"key" : null
)
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I don't have any problems in the editor but the validator does not work when trying to login and the field is empty
So the issue I fouded is that the validate argument in your defaultFormField is not working.
In your components.dart file :
You are declaring the following argument: (Line 28)
required Function validate,
You are calling this argument like this: (Line 43 to 45)
validator: (value){
validate(value);
},
The issue is that the value of your callback in the validator function is not returned. So the validator cannot work. So you need to do the following :
Return the value of the callback
validator: (value){
return validate(value);
},
Modify the declaration of your argument
required String? Function(String?) validate,
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I have an array and I want to convert it into String but separated each element by '","
List<String> list = ["India","China","USA"];
var string = list.join(',');
print(string); //output = "India,China,USA"
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For example I have
[
["A",1]
["B",5]
["C",3]
]
How do i sort it so that it returns in Highest to lowest value B, C, A
You can do in following way:
a.sort {
return $0.last as! Int > $1.last as! Int
}
Don't forget to add additional checks while using this code, case where the last item is not an integer or there is an array not in the expected format. Otherwise, it will lead to a crash.
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function DoneButtonPushed(app, event)
assignin('base','roll_no_GUI1',app.StudentInfoDropDown.Value);
assignin('base','projname_GUI1',app.ProjectInfoDropDown.Value);
assignin('base','roll_no_GUI2',app.StudentInfoDropDown_2.Value);
assignin('base','projname_GUI2',app.ProjectInfoDropDown_2.Value);
assignin('base','roll_no_GUI3',app.StudentInfoDropDown_3.Value);
assignin('base','projname_GUI3',app.ProjectInfoDropDown_3.Value);
assignin('base','roll_no_GUI4',app.StudentInfoDropDown_4.Value);
assignin('base','projname_GUI4',app.ProjectInfoDropDown_4.Value);
assignin('base','roll_no_GUI5',app.StudentInfoDropDown_5.Value);
assignin('base','projname_GUI5',app.ProjectInfoDropDown_5.Value);
closereq
end
Hi, I am creating a GUI which contains DropDowns. They are 10 dropdowns as you can see from the code. And I am using assignin to save each one of them into base workspace. But I would like to club all of them into a 2 char array's or 2 cell array's and send only two variables into the base workspace viz, Roll_nos and Projnames_GUI
Create two cell arrays and assign them in the base workspace:
roll_nos = {
app.StudentInfoDropDown.Value,
app.StudentInfoDropDown_2.Value,
app.StudentInfoDropDown_3.Value,
app.StudentInfoDropDown_4.Value,
app.StudentInfoDropDown_5.Value
};
projnames_gui = {
app.ProjectInfoDropDown.Value,
app.ProjectInfoDropDown_2.Value,
app.ProjectInfoDropDown_3.Value,
app.ProjectInfoDropDown_4.Value,
app.ProjectInfoDropDown_5.Value
};
assignin('base','Roll_nos',roll_nos)
assignin('base','Projnames_GUI',projnames_gui)
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var nsarray:[NSMutableDictionary] = [["object":["uid":["age":"26","gender":"male"]]]]
print(nsarray[0]["object"])
That is how it looks. I want to get the value "uid", so when it prints it is just "uid". Currently it is printing:
"uid":["age":"26","gender":"male"]
I want to get the "uid" value. Meaning when it prints it is just "uid". "uid" is a placeholder for a unique ID so I won't know what the uid is.
It looks like "object" key contains another dictionary, which has exactly one element. To get the first key, call allKeys to get keys, convert them to Array, and pick the the initial element:
let d = nsarray[0]["object"] as! NSDictionary
print(Array(d.allKeys)[0])