Question

如何在alertDialog按钮中按YES按钮后删除listview中的行？！

在我的代码中Cancel是我想要的按钮，如果我按下它，它应该做两件事：

告诉我alertDialog：我通过调用函数ShowDialogCancel()，
按下后：YES中的YESDialog ==＆gt;该行应该删除!!

我尝试了很多方法，但在我按下alertDialog

任何建议

Monerah ......

我的适配器类：

public class MyCasesListAdapter extends BaseAdapter {
    private MyPage myPage;
    private List<MyCaseClass> listOfCases;
    private Activity parentActivity;

    // TODO test
    MyCaseClass entry;

    // TODO delete it not imp.
    public MyCasesListAdapter() {

        super();

    }

    public MyCasesListAdapter(MyPage mypage, List<MyCaseClass> listOfCaseParameter, Activity parentActivity) {
        this.myPage = mypage;
        this.listOfCases = listOfCaseParameter;
        this.parentActivity = parentActivity;
    }
...
    public View getView(int position, View convertView, ViewGroup viewGroup) {

         entry = listOfCases.get(position);
         //this.getitem(position)
        if (convertView == null) {

            LayoutInflater inflater = (LayoutInflater) myPage
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(R.layout.mypage_row, null);
          }


        // this is row items..
        // Set the onClick Listener on this button
        Button ConfExpandRegion = (Button) convertView.findViewById(R.id.expand);
        Button Cancelb = (Button) convertView.findViewById(R.id.cancelCase);
        TextView tvCase = (TextView) convertView.findViewById(R.id.mypage_name);

        // To be a clickable button
        ConfExpandRegion.setFocusableInTouchMode(false);
        ConfExpandRegion.setFocusable(false);


        ConfExpandRegion.setOnClickListener(new View.OnClickListener() {

            public void onClick(View v) {
                // TODO Auto-generated method stub
                myPage.ShowingDialogExpand();
            }
        });

        // To be a clickable button
        Cancelb.setFocusableInTouchMode(false);
        Cancelb.setFocusable(false);
        Cancelb.setOnClickListener(new View.OnClickListener() {

            public void onClick(View v) {
                // TODO Auto-generated method stub
                entry = (MyCaseClass) v.getTag();
                int caseid= entry.getID();
                myPage.ShowingDialogCancel(caseid);

                Toast.makeText(myPage, "inside calling", 0).show();

                //MyCaseClass entry = (MyCaseClass) v.getTag();
                //listOfCases.remove(entry);

                // listPhonebook.remove(view.getId());
                notifyDataSetChanged();
            }
        });

        // Set the entry, so that you can capture which item was clicked and
        // then remove it
        // As an alternative, you can use the id/position of the item to capture
        // the item
        // that was clicked.
        ConfExpandRegion.setTag(entry);
        Cancelb.setTag(entry);

        // btnRemove.setId(position);

        return convertView;
    }

    public void onClick(View view) {
        MyCaseClass entry = (MyCaseClass) view.getTag();
        listOfCases.remove(entry);
        // listPhonebook.remove(view.getId());
        notifyDataSetChanged();

    }


}

从我的页面类：

public void  ShowingDialogCancel(){
        final AlertDialog alertDialog2 = new AlertDialog.Builder(this).create();
        alertDialog2.setTitle("Conformation?");
        alertDialog2.setMessage("Are you sure you want to cancel x cases?");


        alertDialog2.setButton("Yes", new DialogInterface.OnClickListener() {
               public  void onClick(DialogInterface dialog, int which) {

                     CancelMsg = "Case_ID cancel";


                   if (!b) {
                        try {
                            // Should write server number here + the chatting must be pushed above 
                            sendSMS("0000", CancelMsg);
                            Toast.makeText(MyPage.this, "Cancelation request sent", Toast.LENGTH_LONG)
                                    .show();

                        } catch (Exception e) {
                            // TODO Auto-generated catch block
                            Toast.makeText(MyPage.this, e.getMessage(),
                                    Toast.LENGTH_LONG).show();
                        }

                    }
                   }
            });

            alertDialog2.setButton2("No", new DialogInterface.OnClickListener() {
               public void onClick(DialogInterface dialog, int which) {
                // here you can add functions
                // Do nothing 

                   Toast.makeText(MyPage.this, "inside No", 0)
                    .show();


               }
            });

            alertDialog2.setIcon(android.R.drawable.ic_dialog_alert);
            alertDialog2.show();

    }

}

Answer 1

您如何填充列表视图？如果您使用的是阵列，则可以从阵列中删除数据并重新加载列表视图。

Answer 2

如果您有要删除的职位，可以致电

listOfCases.remove(position);
notifyDataSetChanged();

Answer 3

使用您拥有的代码，如果您将引用传递给ShowingDialogCancel(MyCasesListAdapter adapter, View view)，那么您可以添加以下内容：

adapter.onClick(view);

到“是”按钮。

删除ListView中的行[android应用程序]

3 个答案: