Updating content after selecting an item in spinner

Question

him again. I tried the last hours how to change the contents of the counter. ok, let's start from the beginning.

I have three spinners. All of them have initial values. The first spinner is the main spinner, and the other two spinners depend on the valley selected in the first. Therefore, I want to update the last two videos after choosing spinner. * edit: All spinners are on the same activity.

How can i achieve this? My problem is that I can only make changes to the spinners onitemselectadapter, but this is a completely new class. I cannot achieve the activity in which my other spinners work.

THX

Answer 1

?

, Intent (. putExtra) , .

Edit:

, . ( onItemSelected)

:

private Spinner s;
private Spinner s2;
private Spinner s3;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.main);
    String[] myList = new String[] { "Hello", "World", "Foo", "Bar" };
    String[] myList2 = new String[] { "Hello2", "World2", "Foo2", "Bar2" };
    String[] myList3 = new String[] { "Hello3", "World3", "Foo3", "Bar3" };

    s = (Spinner) findViewById(R.id.spinner1);
    s2 = (Spinner) findViewById(R.id.spinner2);
    s3 = (Spinner) findViewById(R.id.spinner3);

    s.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item, myList));
    s2.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item, myList2));
    s3.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item, myList3));


    s.setOnItemSelectedListener(new OnItemSelectedListener(){

        @Override
        public void onItemSelected(AdapterView<?> parent, View v,
                int pos, long id) {
            s2.setSelection(pos);
            s3.setSelection(pos);
        }

        @Override
        public void onNothingSelected(AdapterView<?> arg0) {


        }});
}

main.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:layout_width="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android"
         android:layout_height="wrap_content"
        android:orientation="vertical">
<Spinner android:id="@+id/spinner1" android:layout_height="wrap_content" android:layout_width="fill_parent" />
<Spinner android:id="@+id/spinner2" android:layout_height="wrap_content" android:layout_width="fill_parent" />
<Spinner android:id="@+id/spinner3" android:layout_height="wrap_content" android:layout_width="fill_parent" />
</LinearLayout>