Question

在我的应用程序中，我有一个由CheckedTextView组成的ListView。该列表链接到具有int参数的对象集合;如果该参数是== 1，那么我希望已经检查过CheckedTextView。

这是我的代码：

活动（它实际上是一个片段）：

ListView lv;

public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {

        final View rootView = inflater.inflate(R.layout.aller_layout, container, false);
        lv = (ListView) rootView.findViewById(R.id.listView1);
        CustomAdapter ca = new CustomAdapter(rootView.getContext(), android.R.layout.simple_list_item_multiple_choice, oggetti);
        lv.setAdapter(ca);
        lv.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);

        lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            public void onItemClick(AdapterView<?> parentAdapter, View view, int position, long id){
                /*TextView clickedView = (TextView) view;
                Toast.makeText(rootView.getContext(), "Item with id ["+id+"] - Position ["+position+"] - Planet ["+clickedView.getText()+"]", Toast.LENGTH_SHORT).show();*/
            }   
        });

        return rootView;
    }

适配器：

public class CustomAdapter extends ArrayAdapter<Oggetto>{

    private Context context;
    private Oggetto[] oggetti = null;
    private int layoutid;

    public CustomAdapter(Context context, int layoutid, Oggetto[] oggetti){
        super(context, layoutid, oggetti);

        this.context = context;
        this.oggetti = oggetti;
        this.layoutid = layoutid;
    }

    public View getView(int position, View convertView, ViewGroup parent) {
        if(convertView==null){
            LayoutInflater inflater = ((Activity) context).getLayoutInflater();
            convertView = inflater.inflate(layoutid, parent, false);
        }

        Oggetto oggetto = oggetti[position];
        CheckedTextView ctv = (CheckedTextView) convertView.findViewById(android.R.id.text1);
        ctv.setText(oggetto.nome);
        if(oggetto.preferito == 1)
            ctv.setChecked(true);
        return convertView;
    }
}

ListView它显示正确，我可以检查任何选项没有问题，但setChecked（true）方法不起作用。

知道为什么吗？

Answer 1

CheckedTextView没有明显显示已经检查过，它只是在内部存储该状态。您应该用CheckBox替换它。如果您不希望它被点击，只需在XML中添加android:clickable="false"即可。

Answer 2

if(oggetto.preferito == 1)
            ctv.setChecked(false);   --> THIS IS WRONG

你应该

   ctv.setChecked(oggetto.preferito == 1);

在CheckedTextView中设置检查不起作用

2 个答案: