Two ways to get phone contacts

two ways to get phone contacts

The first method is simpler, just a few words, but the information is not perfect.

The second method is more difficult than the code to get more information full

Required Privileges:

<uses-permission android:name= "Android.permission.READ_CONTACTS"/>
Import java.util.ArrayList;
Import java.util.List;

Import android.app.Activity;
Import Android.content.ContentResolver;
Import Android.database.Cursor;
Import Android.net.Uri;
Import Android.os.Bundle;
Import Android.provider.ContactsContract;
Import Android.view.View;

public class Mainactivity extends activity {

@Override
protected void OnCreate (Bundle savedinstancestate) {
Super.oncreate (savedinstancestate);
Setcontentview (R.layout.activity_main);
}


public void Btnreadcontacts (View v) {

StringBuffer sb = Readcontact ();

list<contacts> Contacts = Readcontact ();

SYSTEM.OUT.PRINTLN ("Contact information:" +contacts.tostring ());


}


Read contacts remember to add permissions
public void Btnotherreadcontacts (View v) {

The parser object for the content provider
Contentresolver resolver = Getcontentresolver ();
This loop is the data table.
Cursor Cursor = resolver.query (ContactsContract.CommonDataKinds.Phone.CONTENT_URI, NULL, NULL, NULL, NULL);

StringBuffer sb = new StringBuffer ();

while (Cursor.movetonext ()) {

String name = cursor.getstring (Cursor.getcolumnindex (ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
String phone = cursor.getstring (Cursor.getcolumnindex (ContactsContract.CommonDataKinds.Phone.NUMBER));

Sb.append ("Name:" +name+ "Tel:" +phone);
}


SYSTEM.OUT.PRINTLN ("---:" +sb.tostring ());


}





/**
* Read system Contacts
* @return return information for all contact persons
*/
Private List<contacts> readcontact () {
Gets a content provider parser object as a mobile phone
Contentresolver resolver = Getcontentresolver ();

This is the query raw_contacts
Uri uri = uri.parse ("content://com.android.contacts/raw_contacts");

This is the data table for the query
Uri Datauri = Uri.parse ("Content://com.android.contacts/data");


SELECT * from Raw_contacts;
Cursor rawcursor = resolver.query (URI, NULL, NULL, NULL, NULL);


Create a container that holds contacts
StringBuffer sb = new StringBuffer ();
list<contacts> contactslist = new arraylist<contacts> ();

while (Rawcursor.movetonext ()) {

Contacts Contacts = new Contacts ();

Get ID of contact person
int id = rawcursor.getint (rawcursor.getcolumnindex ("contact_id"));


SELECT * FROM data where raw_contact_id = ID?
Cursor datacursor = resolver.query (Datauri, null, "raw_contact_id =?", New String[]{id+ ""}, NULL);

Gets the name of the column returned by the specified table
/*string[] names = Datacursor.getcolumnnames ();

for (int i = 0; i < names.length; i++) {

SYSTEM.OUT.PRINTLN ("Column name->" +names[i]);

}*/

while (Datacursor.movetonext ()) {

Get a contact's data phone, mailbox
String content = datacursor.getstring (Datacursor.getcolumnindex ("data1"));
String mimetype = datacursor.getstring (Datacursor.getcolumnindex ("mimetype"));

Used to determine exactly what kind of data a data is.
if ("Vnd.android.cursor.item/phone_v2". Equals (MimeType)) {
Sb.append ("Tel:" +content);
Contacts.setphone (content);
}else if ("Vnd.android.cursor.item/email_v2". Equals (MimeType)) {
Sb.append ("Mailbox:" +content);
Contacts.setemial (content);
}else if ("Vnd.android.cursor.item/name". Equals (MimeType)) {
Sb.append ("Name:" +content+ "\ n");
Contacts.setname (content);
}
}
Contactslist.add (contacts);
}
return contactslist;
}







}