我正在尝试获取手机的所有联系人，listview以便checkboxes一次选择多个联系人。我编写了一些代码，这些代码创建的行数与我的emulator. 但问题是联系人的姓名和号码没有出现，正如您在所附图片中看到的那样。此外，当我单击显示联系人按钮以显示所选联系人时Toast，也没有发生。
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" >
<CheckBox
android:id="@+id/checkBox1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:clickable="true"
android:focusable="true"
android:focusableInTouchMode="false" />
<TextView
android:id="@+id/cConName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/checkBox1"
android:layout_marginLeft="15.0dip"
android:layout_toRightOf="@+id/checkBox1"
android:text="Small Text"
android:textAppearance="?android:textAppearanceSmall" />
<TextView
android:id="@+id/cConNum"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/cConName"
android:layout_marginLeft="15.0dip"
android:layout_toRightOf="@id/checkBox1"
android:text="Medium Text"
android:textAppearance="?android:textAppearanceMedium" />
</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="match_parent"
android:layout_height="match_parent"
android:layout_below="@+id/btnShow" >
</ListView>
</RelativeLayout>
ContactsPicker.java
public class ContactsPicker extends ListActivity {
protected Object mActionMode;
public int selectedItem = -1;
private Button btnShowContacts;
private ListView myListView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_contacts_picker);
myListView = getListView();
btnShowContacts = (Button) findViewById(R.id.btnShow);
btnShowContacts.setOnClickListener(new View.OnClickListener() {
public void onClick (View v){
Toast.makeText(getApplicationContext(), "Button Clicked", Toast.LENGTH_SHORT).show();
String name = null;
String number = null;
long [] ids = myListView.getCheckedItemIds();
for(long id : ids) {
Cursor contact = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?", new String[] { id + "" }, null);
while(contact.moveToNext()){
name = contact.getString(contact.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
number = contact.getString(contact.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
}
Toast.makeText(getApplicationContext(), "Name: " +name + "\n" + "Number: " + number , Toast.LENGTH_LONG).show();
}
}
});
ArrayList<Map<String, String>> list = buildData();
String[] from = { "name", "purpose" };
int[] to = { R.id.cConName, R.id.cConNum };
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,null);
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, null);
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();
startManagingCursor(people);
return list;
}
}