title: Show dialog only once after check checkbox
body: <p>I have in my oncreate a dialog with a checkbox. This checkbox if checked makes dialog not shows the next time i open the application.. I've saved the checkbox state in the sharedpreferences and it goes, it shows me if i've checked or not the checkbox but the dialog still open on startup..What's wrong?</p>
  
  <p>EDIT</p>
  
  <p>// Dialog
      View checkBoxView = View.inflate(this, R.layout.checkbox, null);
      CheckBox checkBox = (CheckBox) checkBoxView.findViewById(R.id.checkbox);
      checkBox.setChecked(getFromSP("checkBox"));</p>
  
  <pre><code>checkBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
  
  private void saveInSp(String key,boolean value){
      SharedPreferences preferences = getApplicationContext().getSharedPreferences("PROJECT_NAME", android.content.Context.MODE_PRIVATE);
      SharedPreferences.Editor editor = preferences.edit();
      editor.putBoolean(key, value);
      editor.commit();
  }
      @Override
      public void onCheckedChanged(CompoundButton buttonView,
              boolean isChecked) {
          // TODO Auto-generated method stub
          switch(buttonView.getId()){
          case R.id.checkbox:
          saveInSp("checkBox",isChecked);
  
          break;
          }
      }
  }); 
  checkBox.setText("Never show it");
  
  SharedPreferences preferences = getApplicationContext().getSharedPreferences("PROJECT_NAME", android.content.Context.MODE_PRIVATE);
  
  boolean hasBeenChecked = preferences.getBoolean("checkbox", false);
  
  if (!hasBeenChecked) {
  AlertDialog.Builder builder = new AlertDialog.Builder(this);
      builder.setTitle(" TITLE");
      builder.setMessage(" blablabla ")
             .setView(checkBoxView)
             .setCancelable(false)
  
             .setNeutralButton("Ok", new DialogInterface.OnClickListener() {
                 public void onClick(DialogInterface dialog, int id) {
                      dialog.cancel();
                 }
             }).show();
  
      } 
  </code></pre>