Question

我希望能够使用checkbox一次选择多个联系人号码。我使用了两个textview和一个checkbox的自定义布局来为列表创建一行。我已成功填写列表中的联系人但我无法配置当用户单击完成按钮时如何检索已选中（勾选）联系人的电话号码。请指导我。

screenshot

custcontactview.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/linearLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingBottom="5.0px"
android:paddingLeft="5.0px"
android:paddingTop="5.0px" >

<TextView
    android:id="@+id/txtContactName"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginLeft="15.0dip"
    android:layout_toLeftOf="@+id/checkBox1"
    android:layout_alignParentLeft="true"
    android:text="Medium Text"
    android:textAppearance="?android:textAppearanceMedium" />

<TextView
    android:id="@+id/txtContactNumber"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/txtContactName"
    android:layout_alignParentLeft="true"
    android:layout_marginLeft="15.0dip"
    android:layout_toLeftOf="@+id/checkBox1"
    android:text="Small Text"
    android:textAppearance="?android:textAppearanceSmall" />

<CheckBox
    android:id="@+id/checkBox1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentRight="true"
    android:layout_marginRight="10dp"
    android:clickable="false"
    android:focusable="false"
    android:focusableInTouchMode="false" />

</RelativeLayout>

activity_contacts_picker.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >

<Button
    android:id="@+id/btnShow"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Show Selected" />

<ListView
    android:id="@android:id/list"
    android:layout_width="fill_parent"
    android:layout_height="match_parent"
    android:clickable="true"
    android:layout_below="@+id/btnShow" >
</ListView>

</RelativeLayout>

ContacsPicker.java

public class ContactsPicker extends ListActivity implements OnItemClickListener {

protected Object mActionMode;

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_contacts_picker);
    ArrayList<Map<String, String>> list = buildData();
    String[] from = { "Name", "Phone" };
    int[] to = { R.id.txtContactName, R.id.txtContactNumber };
    SimpleAdapter adapter = new SimpleAdapter(this, list,
            R.layout.custcontactview, from, to);
    setListAdapter(adapter);
}

private ArrayList<Map<String, String>> buildData() {
    ArrayList<Map<String, String>> list = new ArrayList<Map<String, String>>();
    list.clear();
    Cursor people = getContentResolver().query(
            ContactsContract.Contacts.CONTENT_URI, null, null, null,
            "UPPER(" + ContactsContract.Contacts.DISPLAY_NAME + ") ASC");
    while (people.moveToNext()) {
        String contactName = people.getString(people
                .getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
        String contactId = people.getString(people
                .getColumnIndex(ContactsContract.Contacts._ID));
        String hasPhone = people
                .getString(people
                        .getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER));
        if ((Integer.parseInt(hasPhone) > 0)) {
            Cursor phones = getContentResolver().query(
                    ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                    null,
                    ContactsContract.CommonDataKinds.Phone.CONTACT_ID
                            + " = " + contactId,
                    null,
                    "UPPER(" + ContactsContract.Contacts.DISPLAY_NAME
                            + ") ASC");
            while (phones.moveToNext()) {
                String phoneNumber = phones
                        .getString(phones
                                .getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                Map<String, String> NamePhoneType = new HashMap<String, String>();
                NamePhoneType.put("Name", contactName);
                NamePhoneType.put("Phone", phoneNumber);
                list.add(NamePhoneType);
            }
            phones.close();
        }
    }
    people.close();
    return list;
}

public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { }
}

Answer 1

您应该为每个复选框以及onCheckChanged侦听器或类似设置标记。当状态更改为选中时，只需获取与该复选框关联的标记（这样您就可以知道列表中的哪些元素已被选中）。然后，您将不得不重新查询以获取该列索引处的电话号码。您已将电话号码存储在此处

String phoneNumber = phones
                    .getString(phones
                                  .getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

如何从列表视图中提取复选框的详细信息？

1 个答案: