Click on spinner element android

Question

I created a spinner in my main.xml:

<Spinner
        android:id="@+id/spinner1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:entries="@array/categoria_arrays"
        android:prompt="@string/categoria_prompt" />

And in the strings.xml the values:

<string name="categoria_prompt">Choose</string>
   <string-array name="categoria_arrays">
        <item>All</item>
        <item>One</item>
        <item>Two</item>
        <item>Three</item>
    </string-array>

I can display it normally but actually there are no interactions.. I need that onClick over a item open a new activity for example. So if i click the item at position 2 i need go in the activity One. Is it possible?

I tried to create a toast when i click a item but not works:

public void onItemSelected(AdapterView<?> parent, View view, int pos,long id) {
        Toast.makeText(parent.getContext(), 
            "OnItemSelectedListener : " + 
                                   parent.getItemAtPosition(pos).toString(),
            Toast.LENGTH_SHORT).show();
      //HERE CHANGE ACTIVITY
      }

      @Override
      public void onNothingSelected(AdapterView<?> arg0) {
        // TODO Auto-generated method stub
      }

I How could i do?

Answer 1

Simply call something like this in your onCreate after your setContentView:

Spinner spinner = (Spinner) findViewById(R.id.spinner1);
spinner.setOnItemSelectedListener(new OnItemSelectedListener(){

            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int pos,long id) {
                Toast.makeText(parent.getContext(), "OnItemSelectedListener : " + parent.getItemAtPosition(pos).toString(),
                Toast.LENGTH_SHORT).show();
                //HERE CHANGE ACTIVITY

            }

            @Override
            public void onNothingSelected(AdapterView<?> arg0) {
                // TODO Auto-generated method stub
            }

});

Answer 2

Yes it is possible. Do it like this

public void onItemSelected(AdapterView<?> parent, View view, int pos,long id) {
        if (pos == 1){
                Intent i = new Intent(currentActivity.this, One.class);
                startActivity(i);

        }else if (pos == 2)
        {
                Intent i = new Intent(currentActivity.this, Two.class);
                startActivity(i);

        }else if (pos == 3){
                Intent i = new Intent(currentActivity.this, Three.class);
                startActivity(i);
      }
      }

and so on...

Answer 3

You need to set item selected listener like this:

spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
    @Override
    public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) {
        // your code here
    }

    @Override
    public void onNothingSelected(AdapterView<?> parentView) {
        // your code here
    }

});

Answer 4

You need to explicitly set the listener for the spinner.

spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
    public void onItemSelected(AdapterView<?> arg0, View arg1,
        // your code here
    }
    public void onNothingSelected(AdapterView<?> arg0) {
        // your code here
    }
}); 

Answer 5

Did you just added onItemSelected method, or setted onItemSelectListener? onItemSelected and onNothingSelected are just methods, you need to use onItemSelectListener.