无法在android的列表视图中获取已单击的行号

我试图建立一个简单的短信应用程序，编辑页面列出所有保存的短信。我在布局中提供了两个按钮用于编辑和删除，但当我单击它们时，我无法获取rowid（从顶部开始的行号）以检索对应于该特定行的sms。。有人请帮助我。我的sms适配器没有扩展任何内容。这是我的类和xml文件

public class SMSEdit extends ListActivity{

 private SMSDbAdapter mDbHelper;
 //private Button editsmsbtn, deletesmsbtn;

 public void onCreate(Bundle savedInstanceState) {

  super.onCreate(savedInstanceState);
    setContentView(R.layout.editsmslist);

    mDbHelper = new SMSDbAdapter(this);
    mDbHelper.open();
    fillData();

}

 public void fillData() {
     Cursor smsCursor = mDbHelper.fetchAllNotes();
     startManagingCursor(smsCursor);

     // Create an array to specify the fields we want to display in the list (only TITLE)
     String[] from = new String[]{SMSDbAdapter.KEY_TITLE,
       SMSDbAdapter.KEY_BODY, 
       SMSDbAdapter.KEY_DATE, 
       SMSDbAdapter.KEY_TIME};

     // and an array of the fields we want to bind those fields to (in this case just text1)
     int[] to = new int[]{R.id.smseditlistTO, 
       R.id.smseditlistMessage,
       R.id.smseditlistDay,
       R.id.smseditlistTime};

     // Now create a simple cursor adapter and set it to display
     SimpleCursorAdapter smsadap = 
         new SimpleCursorAdapter(this, R.layout.smsrow, smsCursor, from, to);
     setListAdapter(smsadap);

 }

  public void myEditClickHandler(View v) 
 {
  //get the row the clicked button is in
  LinearLayout vwParentRow = (LinearLayout)v.getParent();

  Button btnChild = (Button)vwParentRow.getChildAt(4);

  btnChild.setText("I've been clicked!");

  ListAdapter pos = getListAdapter();

  Intent intent = new Intent();
      intent.setClass(SMSEdit.this, SMS.class);
     // intent.putExtra(SMSDbAdapter.KEY_ROWID, id);

      startActivity(intent);
      finish();
 }
  public void myDeleteClickHandler(View v) 
 {

  //get the row the clicked button is in
  LinearLayout vwParentRow = (LinearLayout)v.getParent();

  //TextView child = (TextView)vwParentRow.getChildAt(0);
  Button btnChild = (Button)vwParentRow.getChildAt(5);
  //btnChild.setText(child.getText());
  btnChild.setText("I've been clicked!");

 int c = Color.CYAN;

   vwParentRow.setBackgroundColor(c); 
vwParentRow.refreshDrawableState();

         }
 }

editsmslist.xml-->

smsrow.xml-->>

---

另外，请建议是否有更好的方法来实现此功能或使布局看起来更好…

我的

列表视图也有类似的问题

假设您正在动态填充
列表视图。您有5行（例如）。第一行的id为1，第二行的id为2，依此类推

当您滚动任何可见的行时，第一行（您当前在屏幕上看到的）的id将始终为1。您需要使用另一个类（
XYZ
）来控制它

我只是简单地使用了
ArrayList
，这就奏效了

您可以在
SMSAdapter
中重写此方法：

public View getView(int position, View convertView, ViewGroup parent) 

然后调用
get（position）
方法，该方法返回一个
ArrayList
，您应该使用ListView来显示消息

将从数据库检索到的数据存储在字符串数组中，例如s1。
然后

private ArrayList arr_sort=new ArrayList（）
并使用add（）方法将整个s1复制到arr_sort中

设置适配器时

lv.setAdapter（新的阵列适配器（DataAttach.this、，
android.R.layout.simple_list_item_1，arr_sort））
其中lv是ListView引用

然后将此方法用于onClick

lv.setOnItemClickListener(new android.widget.AdapterView.OnItemClickListener() {
                public void onItemClick(AdapterView<?> parent, View view,
                        int position, long id) {
                    String item = (String) lv.getItemAtPosition(position);

                    Toast.makeText(*.this,
                            "You selected - " + item + " ,Please wait...",
                            Toast.LENGTH_LONG).show();

                    Intent intent = new Intent(*.this, *.class);
                    *.this.startActivity(intent);
                }
            });

lv.setOnItemClickListener（新的android.widget.AdapterView.OnItemClickListener（）{
public void onItemClick（AdapterView父级、视图、，
内部位置，长id）{
字符串项=（字符串）lv.getItemAtPosition（位置）；
敬酒，把这个，
“您选择了-”+项目+“，请稍候…”，
Toast.LENGTH_LONG）.show（）；
意向意向=新意向（*.this，*.class）；
*.这一点。开始触觉（意图）；
}
});

希望这有帮助。
您可以像这样扩展游标适配器

public class exampleAdapter extends CursorAdapter
 {
     LayoutInflater inflater; 
    public exampleAdapter (Context context, Cursor c) {
        super(context, c);
        inflater = LayoutInflater.from(context);
    }

    @Override
    public void bindView(View view, Context context, Cursor cursor) {
        // TODO Auto-generated method stub
        Button btn_del = (Button)view.findViewById(R.id.button1);
btn_del.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                SMSDbAdapter vb = new SMSDbAdapter(context);
                vb.open();
                String xyz = cursor.getString(0); //Persumably your ID

                vb.Delete(Integer.parseInt(cursor.getString(0)));
                Toast.makeText(context, xyz + " Deleted!", Toast.LENGTH_SHORT).show();
                vb.close(); 

            }
        });


    }

    @Override
    public View newView(Context context, Cursor cursor, ViewGroup parent) {

        return inflater.inflate(R.layout.smsrow, parent, false);

    }        
 }

lv.setOnItemClickListener(new android.widget.AdapterView.OnItemClickListener() {
                public void onItemClick(AdapterView<?> parent, View view,
                        int position, long id) {
                    String item = (String) lv.getItemAtPosition(position);

                    Toast.makeText(*.this,
                            "You selected - " + item + " ,Please wait...",
                            Toast.LENGTH_LONG).show();

                    Intent intent = new Intent(*.this, *.class);
                    *.this.startActivity(intent);
                }
            });

public class exampleAdapter extends CursorAdapter
 {
     LayoutInflater inflater; 
    public exampleAdapter (Context context, Cursor c) {
        super(context, c);
        inflater = LayoutInflater.from(context);
    }

    @Override
    public void bindView(View view, Context context, Cursor cursor) {
        // TODO Auto-generated method stub
        Button btn_del = (Button)view.findViewById(R.id.button1);
btn_del.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                SMSDbAdapter vb = new SMSDbAdapter(context);
                vb.open();
                String xyz = cursor.getString(0); //Persumably your ID

                vb.Delete(Integer.parseInt(cursor.getString(0)));
                Toast.makeText(context, xyz + " Deleted!", Toast.LENGTH_SHORT).show();
                vb.close(); 

            }
        });


    }

    @Override
    public View newView(Context context, Cursor cursor, ViewGroup parent) {

        return inflater.inflate(R.layout.smsrow, parent, false);

    }        
 }