Assign values to string-array items in a spinner

Question

I have a spinner in which I would like to select a state in the U.S. like 'Texas', and then capture that selection. I want the display on the spinner to be "Texas", "California", "Utah", etc, but when the user selects it, and I capture the value, I want the value to be '57' instead of "Texas". I know I can just do:

String selection = my_spinner.getSelectedItem().toString();
int selectionVal;

if(selection = "Texas"){
   selectionVal = 57;
}

But I would have to do that for a lot of states. Is there a way to do it like I explained above? If not, what would be the most efficient way of doing this? Thank you.

Better Approach to achieve by following this answer stackoverflow.com/questions/24712540/… — Srinivas Guni
– Srinivas Guni, Commented Jun 19, 2019 at 9:11

Aradhna · Accepted Answer · 2016-06-04 04:36:35Z

3

You can create a HashMap that contains the state name as key and it's equivalent number as value.

The after the user selects a value from the Spinner, all you need is to fetch the value from the HashMap and display it.

For example, you can try something like this

HashMap<String,Integer> myMap=new HashMap<String,Integer>();

myMap.put("Texas",57);

You can add all values to this HashMap.

Now when you get the selected option from the Spinner, you can fetch the value from HashMap.

selectionVal=myMap.get(selection);

Hope this helps :)

answered Jun 4, 2016 at 4:36

Aradhna

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Comments

ugali soft · Accepted Answer · 2016-06-04 04:47:44Z

2

Use ONLY 3 lines of code. Save all your selection in array as following, then call them by spinner.getSelectedItemId()

String selection = my_spinner.getSelectedItem().toString();
int[] selectionVal = {57,58,59,60,61};

int sp_selected_val = selectionVal[my_spinner.getSelectedItemId()];

edited Jun 4, 2016 at 4:47

answered Jun 4, 2016 at 4:42

ugali soft

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1 Comment

Dane Lowrey Over a year ago

This was another valid accomplishing what I wanted. I chose another answer only because in my application's case being able to index a HashMap by state's names will be useful. Great and efficient answer!

Sammy T · Accepted Answer · 2016-06-04 04:52:32Z

2

In your strings xml resource:

<string-array name="state_titles">
    <item>Texas</item>
    <item>California</item>
    ...
</string-array>

<string-array name="state_values">
    <item>57</item>
    <item>58</item>
    ...
</string-array>

In your code:

String[] stateValues = getResources().getStringArray(R.array.state_values);
selectionVal = Integer.valueOf(stateValues[my_spinner.getSelectedItemPosition()]);

answered Jun 4, 2016 at 4:52

Sammy T

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Comments

virendra singh deora · Accepted Answer · 2016-06-04 04:43:07Z

0

String[] str=new String[]{"one","two","three"};

ArrayAdapter yourarray= new ArrayAdapter(MyActivityClass.this,android.R.layout.simple_spinner_item, str); yourarray.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); adapt.setAdapter(yourarray);

try this

answered Jun 4, 2016 at 4:43

virendra singh deora

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Comments

Ali mohammadi · Accepted Answer · 2016-06-04 06:08:41Z

0

you can create enum for that:

public enum State {

    Texas(57),la(59);

    private int value;

    State(int value) {
         this.value = value;
    }

   public int getValue() {
        return value;
   }

   public void setValue(int value) {
        this.value = value;
   }
}

and then in your code you can fill spinner with enum value .

ArrayAdapter<State> stateAdapter = new ArrayAdapter<>(getContext(), android.R.layout.simple_spinner_item, State.values());
    stateSpinner.setAdapter(stateAdapter);

and get int value like this:

int selectedState = State.values() [stateSpinner.getSelectedItemPosition()].getValue();

answered Jun 4, 2016 at 6:08

Ali mohammadi

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