How to pass data to spinner

Question

I have:

data class User( var name: String, var category: String) : Serializable

and a spinner:

val categoryList: List<Category> = ArrayList()

categoryList.add(Category("beginner", 0xFFFFFFFF.toInt()))
categoryList.add(Category("intermediate", 0xFFE57373.toInt()))
categoryList.add(Category("advanced", 0xFFFFF176.toInt()))

For save data I do this:

editTextName.text.toString(),
spinner.selectedItem.toString()

Now I want to do the same from the other way:

editTextname.setText(user.name)
spinner. ???????  (user.category)

I don't know what to put here ???????

So now I found this:

spinner.setSelection(user.category)

But setSelection() required a Int and I need a String

Maybe someone have an idea?

Does this answer your question? [Android : Fill Spinner From Java Code Programmatically](https://stackoverflow.com/questions/11920754/android-fill-spinner-from-java-code-programmatically) — Nicolas, Jun 18 '20 at 16:47
try this: https://stackoverflow.com/questions/11072576/set-selected-item-of-spinner-programmatically — Sergei Galagan, Jun 19 '20 at 13:02
Thanks. It was very helpful but in my case something else is missing to pass : spinner.setSelection(user.category) — gallosalocin, Jun 19 '20 at 16:10

Kamil Z · Answer 1 · 2020-06-20T11:52:44.100

My guess is that you should pass to setSelection position of user.category in your spinner adapter. I don't know how your spinner adapter looks like, but I suppose that this should do the job

Firstly change

val categoryList: List<Category> = ArrayList()

into

val categoryList: ArrayList<Category> = ArrayList()

then use

val category = categoryList.filter { category -> category.FIRST_PROPERTY == user.category}
spinner.setSelection(categoryList.indexOf(category))

Don't forget to replace FIRST_PROPERTY with name of yours property of Category class.

Alternatively, you can use this method:

private fun selectValue(spinner: Spinner, value: Any) {
    for (i in 0 until spinner.count) {
        if (spinner.getItemAtPosition(i) == value) {
            spinner.setSelection(i)
            break
        }
    }
}

Thanks for your answer but finally I found a solution before try yours. — gallosalocin, Jun 20 '20 at 17:38

score 0 · Accepted Answer · answered Jun 20 '20 at 17:37

0

Finally I found the solution to my problem.

var position = 0

for (item in categoryList) {
    if (item.category == user.category){
       position = categoryList.indexOf(item)
    }
}

So after you can do : spinner.setSelection(position)

answered Jun 20 '20 at 17:37

gallosalocin

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How to pass data to spinner

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