Listview中的Edittext与错误的输入onresume

我有一个列表视图，每行有一个文本字段和edittext字段。我让他们都在屏幕上战斗。当我通过接听电话，回去等方式恢复活动时，edittext字段中的输入与最初输入的内容不匹配。我想知道如何设置onresume或保存的即时状态来防止这种情况，并确保正确的输入位于正确的edittext字段中。Listview中的Edittext与错误的输入onresume

这是我正在使用的代码。

public class editview extends ListActivity { 
    private dbadapter mydbhelper; 
    private PopupWindow pw; 
    public static int editCount; 
    public static ListView listView; 
    public ItemAdapter adapter; 

    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     mydbhelper = new dbadapter(this); 
     mydbhelper.open(); 


     View footer = getLayoutInflater().inflate(R.layout.footer_layout, null); 
     ListView listView = getListView(); 
     listView.addFooterView(footer); 
     showResults(); 
     } 

    //Populate view 
    private void showResults(){ 
     Cursor cursor = mydbhelper.getUserWord(); 
     startManagingCursor(cursor); 
     String[] from = new String[] {dbadapter.KEY_USERWORD}; 
     int[] to = new int[] {R.id.textType}; 
     adapter = new ItemAdapter(this, R.layout.edit_row, cursor, 
         from, to); 
      adapter.notifyDataSetChanged(); 
      this.setListAdapter(adapter); 
      editCount = adapter.getCount(); 
      adapter.notifyDataSetChanged(); 
    } 


      //footer button 
      public void onClick(View footer){ 
        final MediaPlayer editClickSound = MediaPlayer.create(this, R.raw.button50); 
        editClickSound.start(); 
        if (ItemAdapter.inputValues.containsValue("")){ 
         Toast.makeText(this, "Please fill in all fields", 1000).show(); 
          }else{ 
          startActivity(new Intent("wanted.pro.madlibs.OUTPUT")); 
           }; 

       } 
... 

      } 
      @Override 
      protected void onResume() { 
       super.onResume(); 
      } 

      @Override 
      protected void onPause() { 

       super.onPause(); 

      } 


     } 
//custom cursor adapter 
class ItemAdapter extends SimpleCursorAdapter { 

    private LayoutInflater mInflater; 
    private Cursor cursor; 
    static Map<Integer, String> inputValues = new LinkedHashMap<Integer, String>(); 
    static String oldText; 


    public ItemAdapter(Context context, int layout, Cursor cursor, String[] from, 
      int[] to) { 
     super(context, layout, cursor, from, to); 
     this.cursor = cursor; 
     mInflater = LayoutInflater.from(context); 

    } 


    static class ViewHolder implements TextWatcher { 
     protected TextView text; 
     protected EditText edittext; 
     protected int position; 

     public void afterTextChanged(Editable editable) { 
      Log.e(String.valueOf(position), "Position in array"); 
      inputValues.put(position, editable.toString()); 

     } 
     public void beforeTextChanged(CharSequence s, int start, int count, 
       int after) { 
      // TODO Auto-generated method stub 

     } 
     public void onTextChanged(CharSequence s, int start, int before, 
       int count) { 
      // TODO Auto-generated method stub 

     } 

     } 

    @Override 
    public View getView(final int position, View convertView, ViewGroup parent) { 


     ViewHolder holder; 
     if (convertView == null) { 
      convertView = mInflater.inflate(R.layout.edit_row, null); 


      holder = new ViewHolder(); 
      holder.text = (TextView) convertView.findViewById(R.id.textType); 
      holder.edittext = (EditText) convertView.findViewById(R.id.editText); 
      holder.edittext.addTextChangedListener(holder); 
      holder.position = position; 
      convertView.setTag(holder); 

     } else { 
      holder = (ViewHolder) convertView.getTag(); 

     } 
     cursor.moveToPosition(position); 
     int label_index = cursor.getColumnIndex("userword"); 
     String label = cursor.getString(label_index); 

     holder.text.setText(label); 
     oldText = inputValues.get(position); 
     holder.edittext.setText(oldText == null ? "" : oldText); 

     return convertView; 

    } 
}

来源

2012-02-27 maebe

ListView中的EditText ..是的，我会说忘记它。说真的，这是在android上的越野车。 – 2012-02-27 00:24:55

我使用了一个listview，因为我需要的edittext的数量是动态的。根据用户在以前的活动中选择的内容，我需要4-10的任何地方。 – maebe 2012-02-27 00:29:30

首先，ListViews中的EditTexts是一个令人头疼的问题，以防万一你开始遇到问题。其次，你似乎并没有在任何时候保存inputValue字符串。至少你应该序列化onSaveInstanceState()中的值并将它们读回onCreate()。您不应该将它们存储在适配器中。你应该有一个适当的“模型”（一个带有标签和输入值的对象）支持适配器。 SimpleCursorAdapter并不适合并行修改数据。

来源

2012-02-27 00:24:44 dmon

Listview中的Edittext与错误的输入onresume

回答

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