Ho trovato una soluzione molto semplice per leggere i contatti. (noioso scrivere codice per leggere ogni valore, quindi è bene usare la classe wrapper per i contatti)
Ovviamente <uses-permission android:name="android.permission.READ_CONTACTS"/>
ContactList.java
package com.test;
import java.util.ArrayList;
public class ContactList {
private ArrayList<Contact> contacts = new ArrayList<Contact>();
public ArrayList<Contact> getContacts() {
return contacts;
}
public void setContacts(ArrayList<Contact> contacts) {
this.contacts = contacts;
}
public void addContact(Contact contact) {
this.contacts.add(contact);
}
public ContactList() {
}
}
Contact.java
package com.test;
import java.util.ArrayList;
public class Contact {
private String id;
private String displayName;
private ArrayList<Phone> phone;
private ArrayList<Email> email;
private ArrayList<String> notes;
private ArrayList<Address> addresses = new ArrayList<Address>();
private ArrayList<IM> imAddresses;
private Organization organization;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getDisplayName() {
return displayName;
}
public void setDisplayName(String displayName) {
this.displayName = displayName;
}
public ArrayList<Phone> getPhone() {
return phone;
}
public void setPhone(ArrayList<Phone> phone) {
this.phone = phone;
}
public void addPhone(Phone phone) {
this.phone.add(phone);
}
public ArrayList<Email> getEmail() {
return email;
}
public void setEmail(ArrayList<Email> email) {
this.email = email;
}
public void addEmail(Email email) {
this.email.add(email);
}
public ArrayList<String> getNotes() {
return notes;
}
public void setNotes(ArrayList<String> notes) {
this.notes = notes;
}
public void AddNotes(String notes){
this.notes.add(notes);
}
public ArrayList<Address> getAddresses() {
return addresses;
}
public void setAddresses(ArrayList<Address> addresses) {
this.addresses = addresses;
}
public void addAddress(Address address) {
this.addresses.add(address);
}
public ArrayList<IM> getImAddresses() {
return imAddresses;
}
public void setImAddresses(ArrayList<IM> imAddresses) {
this.imAddresses = imAddresses;
}
public void addImAddresses(IM imAddr) {
this.imAddresses.add(imAddr);
}
public Organization getOrganization() {
return organization;
}
public void setOrganization(Organization organization) {
this.organization = organization;
}
}
Indirizzo.java
package com.test;
public class Address {
private String poBox;
private String street;
private String city;
private String state;
private String postalCode;
private String country;
private String type;
private String asString = "";
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getPoBox() {
return poBox;
}
public void setPoBox(String poBox) {
this.poBox = poBox;
}
public String getStreet() {
return street;
}
public void setStreet(String street) {
this.street = street;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getState() {
return state;
}
public void setState(String state) {
this.state = state;
}
public String getPostalCode() {
return postalCode;
}
public void setPostalCode(String postalCode) {
this.postalCode = postalCode;
}
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
public String toString() {
if (this.asString.length() > 0) {
return(this.asString);
} else {
String addr = "";
if (this.getPoBox() != null) {
addr = addr + this.getPoBox() + "n";
}
if (this.getStreet() != null) {
addr = addr + this.getStreet() + "n";
}
if (this.getCity() != null) {
addr = addr + this.getCity() + ", ";
}
if (this.getState() != null) {
addr = addr + this.getState() + " ";
}
if (this.getPostalCode() != null) {
addr = addr + this.getPostalCode() + " ";
}
if (this.getCountry() != null) {
addr = addr + this.getCountry();
}
return(addr);
}
}
public Address(String asString, String type) {
this.asString = asString;
this.type = type;
}
public Address(String poBox, String street, String city, String state,
String postal, String country, String type) {
this.setPoBox(poBox);
this.setStreet(street);
this.setCity(city);
this.setState(state);
this.setPostalCode(postal);
this.setCountry(country);
this.setType(type);
}
}
Email.java
package com.test;
public class Email {
private String address;
private String type;
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getType() {
return type;
}
public void setType(String t) {
this.type = t;
}
public Email(String a, String t) {
this.address = a;
this.type = t;
}
}
Im.java
package com.test;
public class IM {
private String name;
private String type;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public IM(String name, String type) {
this.name = name;
this.type = type;
}
}
Organization.java
package com.test;
public class Organization {
private String organization = "";
private String title = "";
public String getOrganization() {
return organization;
}
public void setOrganization(String organization) {
this.organization = organization;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public Organization() {
}
public Organization(String org, String title) {
this.organization = org;
this.title = title;
}
}
Phone.java
package com.test;
public class Phone {
private String number;
private String type;
public String getNumber() {
return number;
}
public void setNumber(String number) {
this.number = number;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public Phone(String n, String t) {
this.number = n;
this.type = t;
}
}
ContattaAPI.java
package com.test;
import android.content.ContentResolver;
import android.content.Intent;
import android.database.Cursor;
import android.os.Build;
public abstract class ContactAPI {
private static ContactAPI api;
public static ContactAPI getAPI() {
if (api == null) {
String apiClass;
if (Integer.parseInt(Build.VERSION.SDK) >= Build.VERSION_CODES.ECLAIR) {
apiClass = "com.*********.ContactAPISdk5";
} else {
apiClass = "com.*********.ContactAPISdk3";
}
try {
Class<? extends ContactAPI> realClass = Class.forName(apiClass).
asSubclass(ContactAPI.class);
api = realClass.newInstance();
} catch (Exception e) {
throw new IllegalStateException(e);
}
}
return api;
}
public abstract Intent getContactIntent();
public abstract ContactList newContactList();
public abstract Cursor getCur();
public abstract void setCur(Cursor cur);
public abstract ContentResolver getCr();
public abstract void setCr(ContentResolver cr);
}
ContactAPISdk5.java
package com.test;
import java.util.ArrayList;
import android.content.ContentResolver;
import android.content.Intent;
import android.database.Cursor;
import android.provider.ContactsContract;
public class ContactAPISdk5 extends ContactAPI {
private Cursor cur;
private ContentResolver cr;
public Cursor getCur() {
return cur;
}
public void setCur(Cursor cur) {
this.cur = cur;
}
public ContentResolver getCr() {
return cr;
}
public void setCr(ContentResolver cr) {
this.cr = cr;
}
public Intent getContactIntent() {
return(new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI));
}
public ContactList newContactList() {
ContactList contacts = new ContactList();
String id;
this.cur = this.cr.query(ContactsContract.Contacts.CONTENT_URI,
null, null, null, null);
if (this.cur.getCount() > 0) {
while (cur.moveToNext()) {
Contact c = new Contact();
id = cur.getString(cur.getColumnIndex(ContactsContract.Contacts._ID));
c.setId(id);
c.setDisplayName(cur.getString(cur.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME)));
if (Integer.parseInt(cur.getString(cur.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) {
c.setPhone(this.getPhoneNumbers(id));
}
c.setEmail(this.getEmailAddresses(id));
c.setNotes(this.getContactNotes(id));
c.setAddresses(this.getContactAddresses(id));
c.setImAddresses(this.getIM(id));
c.setOrganization(this.getContactOrg(id));
contacts.addContact(c);
}
}
return(contacts);
}
public ArrayList<Phone> getPhoneNumbers(String id) {
ArrayList<Phone> phones = new ArrayList<Phone>();
Cursor pCur = this.cr.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = ?",
new String[]{id}, null);
while (pCur.moveToNext()) {
phones.add(new Phone(
pCur.getString(pCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER))
, pCur.getString(pCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.TYPE))
));
}
pCur.close();
return(phones);
}
public ArrayList<Email> getEmailAddresses(String id) {
ArrayList<Email> emails = new ArrayList<Email>();
Cursor emailCur = this.cr.query(
ContactsContract.CommonDataKinds.Email.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Email.CONTACT_ID + " = ?",
new String[]{id}, null);
while (emailCur.moveToNext()) {
// This would allow you get several email addresses
Email e = new Email(emailCur.getString(emailCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA))
,emailCur.getString(emailCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.TYPE))
);
emails.add(e);
}
emailCur.close();
return(emails);
}
public ArrayList<String> getContactNotes(String id) {
ArrayList<String> notes = new ArrayList<String>();
String where = ContactsContract.Data.CONTACT_ID + " = ? AND " + ContactsContract.Data.MIMETYPE + " = ?";
String[] whereParameters = new String[]{id,
ContactsContract.CommonDataKinds.Note.CONTENT_ITEM_TYPE};
Cursor noteCur = this.cr.query(ContactsContract.Data.CONTENT_URI, null, where, whereParameters, null);
if (noteCur.moveToFirst()) {
String note = noteCur.getString(noteCur.getColumnIndex(ContactsContract.CommonDataKinds.Note.NOTE));
if (note.length() > 0) {
notes.add(note);
}
}
noteCur.close();
return(notes);
}
public ArrayList<Address> getContactAddresses(String id) {
ArrayList<Address> addrList = new ArrayList<Address>();
String where = ContactsContract.Data.CONTACT_ID + " = ? AND " + ContactsContract.Data.MIMETYPE + " = ?";
String[] whereParameters = new String[]{id,
ContactsContract.CommonDataKinds.StructuredPostal.CONTENT_ITEM_TYPE};
Cursor addrCur = this.cr.query(ContactsContract.Data.CONTENT_URI, null, where, whereParameters, null);
while(addrCur.moveToNext()) {
String poBox = addrCur.getString(addrCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.POBOX));
String street = addrCur.getString(addrCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.STREET));
String city = addrCur.getString(addrCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.CITY));
String state = addrCur.getString(addrCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.REGION));
String postalCode = addrCur.getString(addrCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.POSTCODE));
String country = addrCur.getString(addrCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.COUNTRY));
String type = addrCur.getString(addrCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.TYPE));
Address a = new Address(poBox, street, city, state, postalCode, country, type);
addrList.add(a);
}
addrCur.close();
return(addrList);
}
public ArrayList<IM> getIM(String id) {
ArrayList<IM> imList = new ArrayList<IM>();
String where = ContactsContract.Data.CONTACT_ID + " = ? AND " + ContactsContract.Data.MIMETYPE + " = ?";
String[] whereParameters = new String[]{id,
ContactsContract.CommonDataKinds.Im.CONTENT_ITEM_TYPE};
Cursor imCur = this.cr.query(ContactsContract.Data.CONTENT_URI, null, where, whereParameters, null);
if (imCur.moveToFirst()) {
String imName = imCur.getString(imCur.getColumnIndex(ContactsContract.CommonDataKinds.Im.DATA));
String imType;
imType = imCur.getString(imCur.getColumnIndex(ContactsContract.CommonDataKinds.Im.TYPE));
if (imName.length() > 0) {
IM im = new IM(imName, imType);
imList.add(im);
}
}
imCur.close();
return(imList);
}
public Organization getContactOrg(String id) {
Organization org = new Organization();
String where = ContactsContract.Data.CONTACT_ID + " = ? AND " + ContactsContract.Data.MIMETYPE + " = ?";
String[] whereParameters = new String[]{id,
ContactsContract.CommonDataKinds.Organization.CONTENT_ITEM_TYPE};
Cursor orgCur = this.cr.query(ContactsContract.Data.CONTENT_URI, null, where, whereParameters, null);
if (orgCur.moveToFirst()) {
String orgName = orgCur.getString(orgCur.getColumnIndex(ContactsContract.CommonDataKinds.Organization.DATA));
String title = orgCur.getString(orgCur.getColumnIndex(ContactsContract.CommonDataKinds.Organization.TITLE));
if (orgName.length() > 0) {
org.setOrganization(orgName);
org.setTitle(title);
}
}
orgCur.close();
return(org);
}
}
ContactAPISdk3.java
package com.test;
import java.util.ArrayList;
import android.content.ContentResolver;
import android.content.Intent;
import android.database.Cursor;
import android.provider.Contacts;
import android.provider.Contacts.People;
public class ContactAPISdk3 extends ContactAPI {
private Cursor cur;
private ContentResolver cr;
public Cursor getCur() {
return cur;
}
public void setCur(Cursor cur) {
this.cur = cur;
}
public ContentResolver getCr() {
return cr;
}
public void setCr(ContentResolver cr) {
this.cr = cr;
}
public Intent getContactIntent() {
return(new Intent(Intent.ACTION_PICK, People.CONTENT_URI));
}
public ContactList newContactList() {
ContactList contacts = new ContactList();
String id="";
this.cur = this.cr.query(People.CONTENT_URI,
null, null, null, null);
if (this.cur.getCount() > 0) {
while (cur.moveToNext()) {
Contact c = new Contact();
id = cur.getString(cur.getColumnIndex(People._ID));
c.setId(id);
c.setDisplayName(cur.getString(cur.getColumnIndex(People.DISPLAY_NAME)));
if (Integer.parseInt(cur.getString(cur.getColumnIndex(People.PRIMARY_PHONE_ID))) > 0) {
c.setPhone(this.getPhoneNumbers(id));
}
c.setEmail(this.getEmailAddresses(id));
ArrayList<String> notes = new ArrayList<String>();
notes.add(cur.getString(cur.getColumnIndex(People.NOTES)));
c.setNotes(notes);
c.setAddresses(this.getContactAddresses(id));
c.setImAddresses(this.getIM(id));
c.setOrganization(this.getContactOrg(id));
contacts.addContact(c);
}
}
return(contacts);
}
public ArrayList<Phone> getPhoneNumbers(String id) {
ArrayList<Phone> phones = new ArrayList<Phone>();
Cursor pCur = this.cr.query(
Contacts.Phones.CONTENT_URI,
null,
Contacts.Phones.PERSON_ID +" = ?",
new String[]{id}, null);
while (pCur.moveToNext()) {
phones.add(new Phone(
pCur.getString(pCur.getColumnIndex(Contacts.Phones.NUMBER))
, pCur.getString(pCur.getColumnIndex(Contacts.Phones.TYPE))
));
}
pCur.close();
return(phones);
}
public ArrayList<Email> getEmailAddresses(String id) {
ArrayList<Email> emails = new ArrayList<Email>();
Cursor emailCur = this.cr.query(
Contacts.ContactMethods.CONTENT_EMAIL_URI,
null,
Contacts.ContactMethods.PERSON_ID + " = ?",
new String[]{id}, null);
while (emailCur.moveToNext()) {
// This would allow you get several email addresses
Email e = new Email(emailCur.getString(emailCur.getColumnIndex(Contacts.ContactMethods.DATA))
,emailCur.getString(emailCur.getColumnIndex(Contacts.ContactMethods.CONTENT_EMAIL_TYPE))
);
emails.add(e);
}
emailCur.close();
return(emails);
}
public ArrayList<Address> getContactAddresses(String id) {
ArrayList<Address> addrList = new ArrayList<Address>();
String where = Contacts.ContactMethods.PERSON_ID + " = ? AND " + Contacts.ContactMethods.KIND + " = ?";
String[] whereParameters = new String[]{id,
Contacts.ContactMethods.CONTENT_POSTAL_ITEM_TYPE};
Cursor addrCur = this.cr.query(Contacts.ContactMethods.CONTENT_URI, null, where, whereParameters, null);
while(addrCur.moveToNext()) {
String addr = addrCur.getString(addrCur.getColumnIndex(Contacts.ContactMethodsColumns.DATA));
String type = addrCur.getString(addrCur.getColumnIndex(Contacts.ContactMethodsColumns.TYPE));
Address a = new Address(addr, type);
addrList.add(a);
}
addrCur.close();
return(addrList);
}
public ArrayList<IM> getIM(String id) {
ArrayList<IM> imList = new ArrayList<IM>();
String where = Contacts.ContactMethods.PERSON_ID + " = ? AND " + Contacts.ContactMethods.KIND + " = ?";
String[] whereParameters = new String[]{id,
Contacts.ContactMethods.CONTENT_IM_ITEM_TYPE};
Cursor imCur = this.cr.query(Contacts.ContactMethods.CONTENT_URI, null, where, whereParameters, null);
if (imCur.moveToFirst()) {
String imName = imCur.getString(imCur.getColumnIndex(Contacts.ContactMethodsColumns.DATA));
String imType = imCur.getString(imCur.getColumnIndex(Contacts.ContactMethodsColumns.TYPE));
if (imName.length() > 0) {
IM im = new IM(imName, imType);
imList.add(im);
}
}
imCur.close();
return(imList);
}
public Organization getContactOrg(String id) {
Organization org = new Organization();
String where = Contacts.ContactMethods.PERSON_ID + " = ?";
String[] whereParameters = new String[]{id};
Cursor orgCur = this.cr.query(Contacts.Organizations.CONTENT_URI, null, where, whereParameters, null);
if (orgCur.moveToFirst()) {
String orgName = orgCur.getString(orgCur.getColumnIndex(Contacts.Organizations.COMPANY));
String title = orgCur.getString(orgCur.getColumnIndex(Contacts.Organizations.TITLE));
if (orgName.length() > 0) {
org.setOrganization(orgName);
org.setTitle(title);
}
}
orgCur.close();
return(org);
}
}
Nota : non dimenticare di cambiare il nome del pacchetto *******.
Fonte (il collegamento può essere disattivato in qualsiasi momento :))