title: null pointer exception in spinner adapter
body: <p>i am trying to use this adapter on spinner , which is giving null pointer exception ,
  kindly give ur worthy responses</p>
  
  <pre><code>ArrayAdapter adapter = new ArrayAdapter(this,android.R.layout.simple_spinner_item, R.array.select_action_arrays);
  </code></pre>
  
  <p>and in my string.xml file</p>
  
  <pre><code>&lt;string-array name="select_action_arrays"&gt;
          &lt;item&gt;alert1&lt;/item&gt;
          &lt;item&gt;alert2&lt;/item&gt;
          &lt;item&gt;alert3&lt;/item&gt;
          &lt;item&gt;alert4&lt;/item&gt;
          &lt;item&gt;alert5&lt;/item&gt;
      &lt;/string-array&gt;
  </code></pre>
  
  <p>here is the complete code line</p>
  
  <pre><code>ArrayAdapter&lt;String&gt; adapter = new ArrayAdapter&lt;String&gt;(this, android.R.layout.simple_spinner_item, getResources().getStringArray(R.array.select_action_arrays));
          spinnerSelectAction.setAdapter(adapter);
          spinnerSelectAction = (Spinner)findViewById(R.id.spinnerSelectAction);
          spinnerSelectAction.setAdapter(adapter);
          spinnerSelectAction.setOnItemSelectedListener(new OnItemSelectedListener() {
              int count=0;
              @Override
              public void onItemSelected(AdapterView&lt;?&gt; arg0, View arg1, int arg2, long arg3) {
                  if(count &gt;= 1){
                  Toast.makeText(getBaseContext(),"inside on item selected ",Toast.LENGTH_SHORT).show();
                  }
                  count++;
              }
              @Override
              public void onNothingSelected(AdapterView&lt;?&gt; arg0) {}
          });
  </code></pre>
  
  <p>the spinnerSelectAction seems to be initialised</p>