Android AlertDialog-CheckedTextView不';行不通

Android AlertDialog-CheckedTextView不';行不通,android,checkedtextview,Android,Checkedtextview,我在AlertDialog上显示了一个客户列表。我希望当我单击一个项目时,CheckedTextView被设置为选中。我试了几个小时,但没有setChecked()似乎不起作用 有人能帮我吗 final List<Producteur> p = DAOProducteur.getInstance(null).recherche(producteur); AlertDialog.Builder builder = new AlertDialog.Builder(activity);

我在AlertDialog上显示了一个客户列表。我希望当我单击一个项目时,CheckedTextView被设置为选中。我试了几个小时,但没有
setChecked()
似乎不起作用

有人能帮我吗

final List<Producteur> p = DAOProducteur.getInstance(null).recherche(producteur);

AlertDialog.Builder builder = new AlertDialog.Builder(activity);
builder.setTitle("Résultat(s) :");
builder.setSingleChoiceItems(
        new ArrayAdapter<Producteur>(
                activity, 
                R.layout.activity_recherche_producteurs, 
                p) {
                    @Override
                    public View getView(int position, View convertView, ViewGroup parent) {
                        LayoutInflater inflater = (LayoutInflater) parent.getContext()
                            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

                        View rowView = inflater.inflate(R.layout.activity_recherche_producteurs, parent, false);

                        // Chargement des éléments à partir du layout
                        TextView numProd        = (TextView) rowView.findViewById(R.id.num_prod);
                        TextView numLaiterie    = (TextView) rowView.findViewById(R.id.num_laiterie);
                        TextView numLabo        = (TextView) rowView.findViewById(R.id.num_labo);
                        TextView raisonSociale  = (TextView) rowView.findViewById(R.id.raison_sociale);
                        TextView adresse        = (TextView) rowView.findViewById(R.id.adresse);
                        final CheckedTextView checkBox = (CheckedTextView) rowView.findViewById(R.id.check_box);

                        // Mise en place des textes sur les éléments
                        numProd.setText("n° " + String.valueOf(p.get(position).getNumProd()));
                        numLaiterie.setText(", " + String.valueOf(p.get(position).getNumLaiterie()));
                        String nLabo = String.valueOf(p.get(position).getNumLabo());
                        nLabo = nLabo.substring(0, nLabo.length() - 1) + " " + nLabo.substring(nLabo.length() - 1, nLabo.length());
                        numLabo.setText(nLabo);
                        raisonSociale.setText(String.valueOf(p.get(position).getRaisonSociale()));
                        adresse.setText(String.valueOf(p.get(position).getAdresse()));
                        checkBoxList.put(position, checkBox);

                        return rowView;
                    }
                }, 
        -1, 
        new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int position) {
                producteurChoisi = p.get(position);
                checkBoxList.get(dernierCheck).setChecked(false);
                checkBoxList.get(position).setChecked(true);
                dernierCheck = position;
            }
        });
builder.setPositiveButton(R.string.valider, new OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int position) {
                dialog.cancel();

                if(producteurChoisi != null) {
                    // Ajout du producteur dans la tournée modèle
                    DAOTourneeModele.getInstance(activity).nouveauProducteur(
                            date, 
                            tournee, 
                            tour, 
                            producteurChoisi.getNumProd());

                    // Ouverture du litrage correspondant au nouveau producteur
                    Intent i = new Intent(activity.getApplicationContext(), SaisieActivity.class);
                    i.putExtra("date", date);
                    i.putExtra("tournee", String.valueOf(tournee));
                    i.putExtra("tour", tour);
                    i.putExtra("producteur", String.valueOf(producteurChoisi.getNumProd()));
                    activity.startActivity(i);
                } else {
                    Toast.makeText(activity, getString(R.string.erreur_producteur_non_choisi), Toast.LENGTH_LONG).show();
                }
            }
        });
builder.setNegativeButton(R.string.quitter, new OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.cancel();
                new AjouteProdDialog().show(activity.getFragmentManager(), "dialog");
            }
        });
AlertDialog alert = builder.create();
alert.show();

首先

public class MainActivity extends Activity implements OnClickListener {
    CustomAdapter mAdapter = null;
    List<Model> mDataSource = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mDataSource = new ArrayList<Model>();
        mDataSource.add(new Model("Tom", false));
        mDataSource.add(new Model("Goffy", false));
        mDataSource.add(new Model("Ron", false));
        mDataSource.add(new Model("Pit", false));
        mDataSource.add(new Model("Dwyane", false));
        mDataSource.add(new Model("John", false));
        mDataSource.add(new Model("Son", false));

        mAdapter = new CustomAdapter(this, mDataSource);
    }

    @Override
    protected void onResume() {
        super.onResume();
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setSingleChoiceItems(mAdapter, -1, this);
        builder.setTitle("Customized");
        builder.create().show();
    }

    @Override
    public void onClick(DialogInterface dialog, int which) {
        Log.d("@gaurav", "which " + which);
        Model m = mDataSource.get(which);
        boolean b = m.getState();
        b = !b;
        m.setState(b);
        mAdapter.notifyDataSetChanged();
    }
      }
我看不到将刷新列表视图的
notifydatasetChange()
调用。因此,在
onClick()
中,在更改备份数据源之后,也应该刷新适配器

备选方案

在getView()中,您可以为
复选框设置
onClickListener
,对于每个
onClick()
回调,您应该更新备份数据源并调用`on复选框以切换状态

代码

模型类 类模型{

public Model(String data, boolean state) {
    this.data = data;
    this.state = state;
}

String data;
Boolean state;
    // getter and setters 
   }
自定义适配器

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View view = inflater.inflate(R.layout.single_row, null, false);
    TextView tv = (TextView) view.findViewById(R.id.content);
    CheckedTextView ctv = (CheckedTextView) view.findViewById(R.id.checker);
    Model m = backingsource.get(position);
    tv.setText(m.getData());
    ctv.setChecked(m.getState());
    return view;
}
活动

public class MainActivity extends Activity implements OnClickListener {
    CustomAdapter mAdapter = null;
    List<Model> mDataSource = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mDataSource = new ArrayList<Model>();
        mDataSource.add(new Model("Tom", false));
        mDataSource.add(new Model("Goffy", false));
        mDataSource.add(new Model("Ron", false));
        mDataSource.add(new Model("Pit", false));
        mDataSource.add(new Model("Dwyane", false));
        mDataSource.add(new Model("John", false));
        mDataSource.add(new Model("Son", false));

        mAdapter = new CustomAdapter(this, mDataSource);
    }

    @Override
    protected void onResume() {
        super.onResume();
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setSingleChoiceItems(mAdapter, -1, this);
        builder.setTitle("Customized");
        builder.create().show();
    }

    @Override
    public void onClick(DialogInterface dialog, int which) {
        Log.d("@gaurav", "which " + which);
        Model m = mDataSource.get(which);
        boolean b = m.getState();
        b = !b;
        m.setState(b);
        mAdapter.notifyDataSetChanged();
    }
      }
public类MainActivity扩展活动实现OnClickListener{
CustomAdapter mAdapter=null;
List-mDataSource=null;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mDataSource=newarraylist();
mDataSource.add(新模型(“Tom”,false));
添加(新模型(“Goffy”,false));
mDataSource.add(新模型(“Ron”,false));
mDataSource.add(新模型(“Pit”,false));
添加(新模型(“Dwyane”,false));
add(新模型(“John”,false));
mDataSource.add(新模型(“Son”,false));
mAdapter=新的CustomAdapter(此为mDataSource);
}
@凌驾
受保护的void onResume(){
super.onResume();
AlertDialog.Builder=新建AlertDialog.Builder(此);
建筑商。设置SingleChoiceItems(mAdapter,-1,本);
建造商名称(“定制”);
builder.create().show();
}
@凌驾
public void onClick(DialogInterface dialog,int which){
Log.d(“@gaurav”,“which”+which);
Model m=mDataSource.get(which);
布尔b=m.getState();
b=!b;
m、 设定状态(b);
mAdapter.notifyDataSetChanged();
}
}
单行.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal" >

    <TextView
        android:id="@+id/content"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Some text" >
    </TextView>

    <CheckedTextView
        android:id="@+id/checker"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:checkMark="?android:attr/listChoiceIndicatorSingle" />

</LinearLayout>


编辑的缺点是用户只能按复选框,而不能按整行…还有其他想法吗?您可以在
视图上设置
onClickListener
。或者,如果您可以从alertbox获取列表视图,则可以在其上设置
onItemClickListener
,您正在编写!如果我使用
notifydatasetChange()
在视图
OnClickListener
上,单选按钮工作正常,但速度较慢,当我滚动时,单选按钮未锁定。但感谢您的帮助!:)