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如何覆盖 CheckBox 的默认onClick()行为?

用例我希望复选框反映在行视图中呈现的对象的一些布尔状态。当用户单击该行(包括复选框)时,将运行一些可能会改变对象状态(布尔变量)的进程。

现在如何防止 CheckBox 的默认 onClick 行为启动?换句话说,我想CheckBox.onClick()打电话给theCustomAdapter.onItemClick(). 我如何实现这一目标?

再想一想,是否有任何这样的小部件对象只显示开/关状态并且不实现可点击?

自定义适配器

public class UserListViewAdapter extends ArrayAdapter<User> implements AdapterView.OnItemClickListener
{
    private final Context context;
    private final List<User> users;

    public UserListViewAdapter(Context context, int resource, List<User> users)
    {
        super(context, resource, users);
        this.context = context;
        this.users = users;
    }

    public View getView(int position, View convertView, ViewGroup parent)
    {
        LayoutInflater layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View row = layoutInflater.inflate(R.layout.user, parent, false);

//        set the loggedIn? isCurrent? radio buttons
        CheckBox checkBox = (CheckBox) row.findViewById(R.id.isLoggedIn);
        checkBox.setChecked(users.get(position).isLoggedIn());
        checkBox = (CheckBox) row.findViewById(R.id.isCurrent);
        checkBox.setChecked(users.get(position).isCurrent());

//        fill the user name
        TextView textView = (TextView) row.findViewById(R.id.userName);
        textView.setText(users.get(position).getUserName());

//        fill the user id
        textView = (TextView) row.findViewById(R.id.userId);
        textView.setText(users.get(position).getUserId());

//        return the row
        return row;
    }

//    @Override
    public void onItemClick(AdapterView<?> adapterView, View view, int i, long l)
    {
        Log.i("Clicked", adapterView.toString());
        Toast.makeText(this.context, "Clicked! "+l, Toast.LENGTH_LONG).show();
    }
}

自定义行视图

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:orientation="horizontal"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
            android:gravity="center"
        android:clickable="true">
    <CheckBox android:layout_height="wrap_content"
                 android:layout_width="wrap_content"
                 android:id="@+id/isLoggedIn"
                 android:padding="4dp"
                android:gravity="center"
            android:focusable="false"
            android:clickable="false"
            android:focusableInTouchMode="false"/>
    <CheckBox android:layout_height="wrap_content"
                 android:layout_width="wrap_content"
                 android:id="@+id/isCurrent"
                 android:padding="4dp"
                 android:gravity="center"
                android:focusable="false"
                android:clickable="false"
                android:focusableInTouchMode="false"/>
    <TextView android:layout_height="wrap_content"
              android:layout_width="wrap_content"
              android:id="@+id/userName"
              android:padding="4dp"
            android:gravity="left"
            android:focusable="false"
            android:clickable="false"
            android:focusableInTouchMode="false"/>
    <TextView android:layout_height="wrap_content"
              android:layout_width="wrap_content"
              android:id="@+id/userId"
              android:padding="4dp"
            android:gravity="left"
            android:focusable="false"
            android:clickable="false"
            android:focusableInTouchMode="false"/>
</LinearLayout>
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1 回答 1

0

复选框的替代方法是切换按钮:

http://developer.android.com/guide/topics/ui/controls/togglebutton.html

在示例中,您可以看到如何让 ToggleButton 自行决定是否切换,具体取决于您可能想要设置的任何条件。

于 2013-08-14T11:44:16.983 回答