title: Android: can't find startActivityForResult request_code
body: <p>I want to set an <code>imageview</code> and let the user to set his own image, i found how to do that on another question, but all the answers contains attribute for <code>startActivityForResult</code> function like <code>PICK_IMAGE</code> or <code>SELECT_IMAGE</code> or <code>ACTIVITY_IMAGE_SELECTOR</code> but my eclipse says that those are not defined , why ?</p>
  
  <h1>Edit</h1>
  
  <pre><code>Intent intent = new Intent();
              intent.setType("image/*");
              intent.setAction(Intent.ACTION_GET_CONTENT);
              startActivityForResult(
                      Intent.createChooser(intent, "Select Picture"), PICK_IMAGE);
  </code></pre>