This question already has answers here:
How to add items to a spinner in Android?
(11 answers)
Closed 2 years ago.
I have a spinner where the contents are from an Array in Strings.xml. However I would like to be able to let the user add items to the array. Can anyone help and let me know if there is a way to do this?
Many thanks
ArrayAdapter has a method add(object) as seen here: ArrayAdapter | Android Developer
For example:
fun addItem(item: T) {
arrayAdapter.add(item)
// Refreshes the view to reflect the changes applied to arrayAdapter
arrayAdapter.notifyDataSetChanged()
}
Related
This question already has an answer here:
list items are not deleting properly (React)
(1 answer)
Closed 3 years ago.
onRemoveVariant(groupKey, questionKey, variantKey) {
const {questionGroups} = this.props;
questionGroups[groupKey].questions[questionKey].variants.splice(variantKey, 1);
this.props.updateQuestionnaire('questionGroups', questionGroups);
}
I have 5 variants and when i edit if i use delete variant first or any other variant, always only last variant get splice!
Why? how to use splice if splice by key doesnt work?
Img example
Find the index of that particular element in an array and then use that index in place of splice(variantKey,1) as splice(index,1)
This question already has answers here:
Determine whether an array contains a value [duplicate]
(18 answers)
Closed 7 years ago.
I have array of name:
$scope.myArray with some values.
Now I want to check an Item is present in array or not,
If it is not present then I want to push that item into array and If that item is already in array then I don't want to push it.
Please tell me how to do this ?
if($scope.myArray.indexOf(item) === -1) {
$scope.myArray.push(item)
}
You can read about indexOf for more details. Also, checkout underscore js for some readily available functions.
This question already has an answer here:
How to Segue Randomly to ViewControllers in Swift? [closed]
(1 answer)
Closed 7 years ago.
I'm trying to make an array in swift of segues so that I can switch to a random view controller via pressing a button.
You can more reasonably maintain an array of strings that could represent the segue.identifier.
This question already has an answer here:
Get all resources in array
(1 answer)
Closed 8 years ago.
I'm new to VB and programming in general. I'm having some trouble trying to add all the pictures I have from Resources into an image array, I think it can be done with a loop, but I don't know how... Sorry for asking such a simple question and thanks!
Here is a similar question of yours that can also be found here in SO. I have edited the code there so that you can add the images into an list/array.
Dim ResourceSet As Resources.ResourceSet = My.Resources.ResourceManager.GetResourceSet(Globalization.CultureInfo.CurrentCulture, True, True)
Dim lstImage As New List(Of Image) 'You can use array here, but I prefered list.
For Each Dict As DictionaryEntry In ResourceSet.OfType(Of Object)()
If TypeOf (Dict.Value) Is Drawing.Image Then
lstImage.Add(Dict.Value)
End If
Next
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
AuthComponent: Difference between allowedActions and allow()?
What is the difference between using the method
$this->Auth->allow()
and setting the variable
$this->Auth->allowedActions ?
I can't find any information about setting the allowedActions array where I expected to find it (http://book.cakephp.org/view/1251/Setting-Auth-Component-Variables) - but it exists in the API at http://api13.cakephp.org/class/auth-component.
Can someone please explain which different circumstances I should use them?
See this AuthComponent: Difference between allowedActions and allow()?