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我的应用程序中的活动出现了一些问题。我正在使用方法保存一些数据onSavedInstanceState()并在其中恢复onCreateView()(此活动有两个片段,并且它具有 onCreate 和 onCreateView)。恢复的数据已更正,但我无法将它们正确放入我的活动中的微调器中。

我在此循环之前、内部和之后放置了一些断点:

      ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_spinner_item, list);
      spinner.setAdapter(adapter);

      **if(savedInstanceState != null) {
          Log.i("SPINNER POS", ""+posSaved);
          spinner.setSelection(posSaved);
      }**

我可以观察到应用程序两次访问 onCreateView 方法...第一次 posSaved 变量是正确的,但第二次这个变量是 0 并且由于这个原因微调器永远不会显示保存在 posSaved 变量中的位置它显示 0 位置(默认情况下),然后就像我不使用 onSavedInstanceState 方法...

...为什么应用程序在 onCreateView() 方法中输入两次?我该如何解决这种情况?

PD。此活动也在 onCreate() 方法中输入两次。

我的活动代码

public class Menu_Seeker_Filter extends Fragment {
... (variables declarated) ...
 @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);         
      if ((getFragmentManager().findFragmentById(R.id.results_fragment) != null)) { //Fragments
            mTwoPane = true;
      }

 @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
      View view = inflater.inflate(R.layout.activity_seeker_filtro, container, false);
      if (savedInstanceState != null) {
          // Restore value of members from saved state
          posSaved = savedInstanceState.getInt("POSITION");
      }
      ...
      ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_spinner_item, list);
      spinner.setAdapter(adapter);
      spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
          public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
              ((TextView) parent.getChildAt(0)).setTextSize(18);
              ((TextView) parent.getChildAt(0)).setTypeface(font2);
              text = (parent.getItemAtPosition(pos).toString());
              posSaved = pos;
          }
          public void onNothingSelected(AdapterView<?> parent) {
              //Do nothing.
          }       
      });
      if(savedInstanceState != null) {
          Log.i("POSITION", ""+posSaved);
          spinner.setSelection(posSaved);
      }
  }

 @Override
    public void onSaveInstanceState(Bundle savedInstanceState) {
        // Save the user's current game state
        savedInstanceState.putInt("POSITION", spinner.getSelectedItemPosition());

        // Always call the superclass so it can save the view hierarchy state
        super.onSaveInstanceState(savedInstanceState);
    }


}

这个活动片段在这个类中被调用:

public class Menu_Seeker extends FragmentActivity {
...(variables declarated)...
final Menu_Seeker_Filter fragment = new Menu_Seeker_Filter();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.fragment_seeker_filter);

        if ((getSupportFragmentManager().findFragmentById(R.id.results_fragment) != null)) { //Fragments
           mTwoPane = true;
           getSupportFragmentManager().beginTransaction().replace(R.id.seeker_fragment, fragment).commit();         
        }else { //No Fragments
           getSupportFragmentManager().beginTransaction().replace(R.id.framelayout_filter, fragment).commit();
        }

    ...
}

谢谢。

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