Android phone Address Book backup restore code

Source: Internet
Author: User

The implementation method is simple
1. Save the contacts and phone numbers in the Address Book to the TXT file to complete the backup.
2. Read the TXT file and import to the Address Book to complete the restore.

  Specific code
1. Add read and write access to the address book, memory card Write permissions

<uses-permission android:name= "Android.permission.READ_CONTACTS" ></uses-permission>
<uses-permission android:name= "Android.permission.WRITE_EXTERNAL_STORAGE" ></uses-permission>
<uses-permission android:name= "Android.permission.WRITE_CONTACTS" ></uses-permission>

2. Write the file code

File Savefile=new file ("/sdcard/test.txt");
FileOutputStream OutStream;
try {
OutStream = new FileOutputStream (saveFile);
Outstream.write (Str.getbytes ());
Outstream.close ();
} catch (Exception e) {

  
Settitle (E.tostring ());
}

3. Access Contacts

Str= "";
Cursor cur = getcontentresolver (). query (ContactsContract.Contacts.CONTENT_URI, NULL, NULL, NULL, or NULL);
if (Cur.movetofirst ()) {
int idcolumn = Cur.getcolumnindex (contactscontract.contacts._id);
int displaynamecolumn = Cur.getcolumnindex (ContactsContract.Contacts.DISPLAY_NAME);
do {
String contactId = cur.getstring (Idcolumn);
String disPlayName = cur.getstring (Displaynamecolumn);
Str+=displayname;
int phonecount = Cur.getint (Cur.getcolumnindex (ContactsContract.Contacts.HAS_PHONE_NUMBER));
if (phonecount>0) {
Cursor phones = getcontentresolver (). Query (Contactscontract.commondatakinds.phone.content_uri,null, Contactscontract.commondatakinds.phone.contact_id+ "=" + contactId, NULL, NULL);
int i=0;
String PhoneNumber;
if (Phones.movetofirst ()) {
do{
i++;
Phonenumber= phones.getstring (Phones.getcolumnindex (ContactsContract.CommonDataKinds.Phone.NUMBER));
if (i==1)
Str=str+ "," +phonenumber;
System.out.println (PhoneNumber);
}while (Phones.movetonext ());
}
}
str+= "\ r \ n";
} while (Cur.movetonext ());
}
}

4. Read the file code

try {
File File = new file ("/sdcard/test.txt");
FileInputStream instream = new FileInputStream (file);
Bytearrayoutputstream OutStream = new Bytearrayoutputstream ();
byte[] buffer = new BYTE[1024*5];
int length =-1;
while (length = instream.read (buffer))! =-1) {
Outstream.write (buffer, 0, length);
}
Outstream.close ();
Instream.close ();
String txt= outstream.tostring ();

  
} catch (IOException e) {
Settitle (E.tostring ());
}

  
5. Write your Contacts

Contentvalues values = new Contentvalues ();
Uri Rawcontacturi = Getcontentresolver (). Insert (Rawcontacts.content_uri, values);
Long Rawcontactid = Contenturis.parseid (Rawcontacturi);
Values.clear ();
Values.put (data.raw_contact_id, Rawcontactid);
Values.put (Data.mimetype, Structuredname.content_item_type);
Values.put (Structuredname.given_name, NAME);
Getcontentresolver (). Insert (Data.content_uri, values);
Values.clear ();
Values.put (data.raw_contact_id, Rawcontactid);
Values.put (Data.mimetype, Phone.content_item_type);
Values.put (Phone.number, num);
Values.put (Phone.type, phone.type_home);
Getcontentresolver (). Insert (Data.content_uri, values);

Android phone Address Book backup restore code

  Free in

  Both the user name and password are

  specific download directory in /pub/android source collection/2011/November/android phone Address Book backup restore code/

Android phone Address Book backup restore code

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.