Question

我有这个getView函数，它允许我在listview中获得每次点击，并点击该元素。在每一行中都有一个ToggleButton“boto_agregar”。在我的getView函数中有一个setOnCheckedChangeListener ..如果未选中togglebutton，那么它被称为布尔函数“DialegCancelar”。它的功能是，如果在AlertDialog中用户单击“是”，则必须取消选中togglebutton，如果用户单击“否”，则必须保持选中togglebutton ...

我做错了什么？实际上，当我点击“是”或“否”时，togglebutton状态不会改变......

谢谢！

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

        viewHolder = null;
        LayoutInflater inflator = context.getLayoutInflater();
        convertView = inflator.inflate(R.layout.row, parent, false);
        viewHolder = new ViewHolder();
        viewHolder.nom_usuari = (TextView) convertView
                .findViewById(R.id.nom_usuari);
        viewHolder.boto_agregar = (ToggleButton) convertView
                .findViewById(R.id.boto_agregar);

        viewHolder.boto_agregar.setChecked(list.get(position).isSelected());
        final int viewPosition = position;

        viewHolder.boto_agregar
                .setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

                    public void onCheckedChanged(CompoundButton buttonView,
                            boolean isChecked) {

                        list.get(viewPosition).setSelected(
                                buttonView.isChecked());
                        String nom = list.get(viewPosition).getName();
                        if (isChecked) {
                            SharedPreferences dades_login = context.getSharedPreferences("perfil", Context.MODE_PRIVATE);
                            String id = dades_login.getString("id", "");
                            String[] params= {id, nom};
                            new AfegirAmic().execute(params);
                        } else {
                            if(DialegCancelar(nom,viewPosition)){
                                buttonView.setChecked(true);
                            }else{
                                buttonView.setChecked(false);
                            }
                        }
                    }
                });

        convertView.setTag(viewHolder);
        convertView.setTag(R.id.nom_usuari, viewHolder.nom_usuari);
        convertView.setTag(R.id.boto_agregar, viewHolder.boto_agregar);

        viewHolder.boto_agregar.setTag(position); // This line is important.
        viewHolder.nom_usuari.setText(list.get(position).getName());

        return convertView;
    }


    private boolean DialegCancelar(final String nom, final int posicio)  {

                AlertDialog.Builder builder1 = new AlertDialog.Builder(context);
                builder1.setMessage("Do you want to cancel the request to: "+nom+" ?");
                builder1.setCancelable(false);
                builder1.setPositiveButton("Yes",
                        new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        dialog.cancel();
                        SharedPreferences dades_login = context.getSharedPreferences("perfil", Context.MODE_PRIVATE);
                        String id_propia = dades_login.getString("id", "");
                        String[] params= {id_propia,nom};
                        new CancelarAmic().execute(params);
                        marcado=false;
                    }
                });
                builder1.setNegativeButton("No",
                        new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        dialog.cancel();
                        marcado=true;
                    }
                });

                AlertDialog alert11 = builder1.create();
                alert11.show();             
        return marcado;
    }

Answer 1

问题出在这里

if(DialegCancelar(nom,viewPosition)){
         buttonView.setChecked(true);
 }else{
       buttonView.setChecked(false);
 }

您正在检查DialegCancelar()方法的返回值并设置buttonView。但该方法将立即返回，而不是在您按照预期的对话是/否点击后返回。

因此。您需要在set buttonView.setChecked按钮Dialog内onClick。

根据AlertDialog单击更改ListView（getView）中的ToggleButton状态

1 个答案: