CODEWITHSUNDEEP
javaandroidandroid-spinner
Lobbe
Lobbe

Reputation: 71

Set Spinner based on the other Spinner

I'm making an App for android. I have 2 spinners, and when I select one item in my 1st spinner(simpleSpinner) it ofc needs to show it(I have done that) but when I select one from my 2nd spinner(multiSpinner) I want my simpleSpinner to go back to the first item in the spinner. And the other way around, when I select one in my simpleSpinner I want my multiSpinner to show the first item in my simpleSpinner. How do I do that?

 final ArrayAdapter<String> ar1 = new ArrayAdapter<String>(this,
                R.layout.my_spinner, arrSimple);
        final ArrayAdapter<String> ar2 = new ArrayAdapter<String>(this,
                R.layout.my_spinner, arrMulti);

        spSimple.setAdapter(ar1);
        spMulti.setAdapter(ar2);

        AdapterView.OnItemSelectedListener simpleListen = new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view,
                    int position, long id) {
                String simpleText = spSimple.getSelectedItem().toString();

                if("Rouge".equals(simpleText)){
                    spMulti.setSelection(0);
                }
            }

            @Override
            public void onNothingSelected(AdapterView<?> parent) {

            }
        };

        AdapterView.OnItemSelectedListener multiListen = new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view,
                    int position, long id) {
                String multiText = spMulti.getSelectedItem().toString();

                if("Plein".equals(multiText)){
                    spSimple.setSelection(0);
                }
            }

            @Override
            public void onNothingSelected(AdapterView<?> parent) {

            }
        };
    spSimple.setOnItemSelectedListener(simpleListen);
    spMulti.setOnItemSelectedListener(multiListen);

The code works now! Thanks to @BlackPanther

Upvotes: 0

Views: 75

Answers (1)

Thirumalai Parthasarathi
Thirumalai Parthasarathi

Reputation: 4671

You should use separate listeners for you Spinners. Since you are using the same listener for both the Spinners this piece of code

if("Rouge".equals(simpleText)){
    spMulti.setSelection(0);
}

causes your problem.

When you have first selected "Rouge" in your first Spinner the second spinner is set to "Wahie", now when you try to change the item in your second Spinner, the same method is invoked and since the first Spinner's selection is in "Rouge" the second Spinner is set to "Wahie" again..

In your onCreate method do something like this

@Override
public void onCreate(Bundle savedInstanceState) {
  //your code

  addListenerOnSpinnerItemSelection();

  //more of your code
}

public void addListenerOnSpinnerItemSelection() {
  spMulti = (Spinner) findViewById(R.id.spMulti);
  spMulti.setOnItemSelectedListener(new CustomOnItemSelectedListener());
}

you can create a custom listener class that implements OnItemSelectedListener

see this article. You can adapt from it and tailor it according to your need.

You can use the same listener for both the spinners by the following code 

Spinner spinner = (Spinner) parent;
 if(spinner.getId() == R.id.spSimple)
 {
   //do this                    
 }
 else if(spinner.getId() == R.id.spMulti)
 {
   //do this
 }

Upvotes: 1

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