Android uses contentresolver to perform simple operations on the data in the Communication record

1. Add read/write permissions

XHTML code

1. <Uses-Permission
   Android: Name = "android. Permission. read_contacts"
   />
   
2. <Uses-Permission
   Android: Name = "android. Permission. write_contacts"
   />

<Uses-Permission Android: Name = "android. Permission. read_contacts"/> <uses-Permission Android: Name = "android. Permission. write_contacts"/>

Contact information URI:

Content: // com. Android. Contacts/contacts

Contact number URI:

Content: // com. Android. Contacts/data/phones

Contact email URI:

Content: // com. Android. Contacts/data/emails

(Recommended) You can also obtain the contact information URI: URI uri = contactscontract. Contacts. content_uri;

2. query and add Contacts (Unit Test Cases)

Java code

1. Public
   Class contacttest
   Extends androidtestcase
   
2. {
3. Private
   Static
   Final string tag =
   "Contacttest ";
   
5. /**
6. * Obtain the simple information of all contacts in the address book.
   
7. * @ Throws throwable
   
8. */
   
9. Public
   Void testgetallcontact ()
   Throws throwable
   
10. {
11. // Obtain the URI of the contact information
    
12. Uri uri = contactscontract. Contacts. content_uri;
13. // Obtain contentresolver
    
14. Contentresolver = This. getcontext (). getcontentresolver ();
    
15. // Query data and return cursor
    
16. Cursor cursor = contentresolver. Query (Uri, null,
    Null,
    Null,
    Null );
    
17. While (cursor. movetonext ())
    
18. {
19. Stringbuilder sb = new stringbuilder ();
    
20. // Obtain the contact ID
    
21. String contactid = cursor. getstring (cursor. getcolumnindex (contactscontract. Contacts. _ id ));
    
22. // Obtain the contact name
    
23. String name = cursor. getstring (cursor. getcolumnindex (contactscontract. Contacts. display_name ));
    
24. // Construct the contact information
    
25. SB. append ("contactid ="). append (contactid). append (", name ="). append (name );
    
26. // Query telephone data operations
    
27. Cursor phones = contentresolver. Query (contactscontract. commondatakinds. Phone. content_uri,
    
28. Null,
    
29. Contactscontract. commondatakinds. Phone. contact_id + "=" + contactid,
    
30. Null,
    Null );
    
31. While (phones. movetonext ())
    
32. {
33. String phonenumber = phones. getstring (phones. getcolumnindex (
34. Contactscontract. commondatakinds. Phone. Number ));
35. // Add phone information
    
36. SB. append (", phone ="). append (phonenumber );
    
37. }
38. Phones. Close ();
40. // Query email-type data operations
    
41. Cursor emails = contentresolver. Query (contactscontract. commondatakinds. Email. content_uri,
    
42. Null,
    
43. Contactscontract. commondatakinds. Email. contact_id + "=" + contactid,
    
44. Null,
    Null );
    
45. While (emails. movetonext ())
    
46. {
47. String emailaddress = emails. getstring (emails. getcolumnindex (
48. Contactscontract. commondatakinds. Email. Data ));
49. // Add email information
    
50. SB. append (", email ="). append (emailaddress );
    
51. }
52. Emails. Close ();
53. Log. I (TAG, SB. tostring ());
54. }
55. Cursor. Close ();
56. }
58. /** Method 1 for adding a contact:
    
59. * First, execute a null value insert to rawcontacts. content_uri to obtain rawcontactid returned by the system.
    
60. * In this case, the data table is inserted later. Only when null values are inserted can the inserted contacts be visible in the address book.
    
61. */
    
62. Public
    Void testinsert ()
    
63. {
64. Contentvalues values = new contentvalues ();
    
65. // First, execute a null value insert to rawcontacts. content_uri to obtain rawcontactid returned by the system.
    
66. Uri rawcontacturi = This. getcontext (). getcontentresolver (). insert (rawcontacts. content_uri, values );
    
67. // Obtain the ID
    
68. Long rawcontactid = contenturis. parseid (rawcontacturi );
    
69. // Input name data to the data table
    
70. Values. Clear ();
71. Values. Put (data. raw_contact_id, rawcontactid); // Add an ID
    
72. Values. Put (data. mimetype, structuredname. content_item_type); // Add content type (mimetype)
    
73. Values. Put (structuredname. given_name, "Kaifeng from South"); // Add the name to the first name position.
    
74. This. getcontext (). getcontentresolver (). insert (Android. provider. contactscontract. Data. content_uri, values );
    
75. // Input telephone data to the data table
    
76. Values. Clear ();
77. Values. Put (data. raw_contact_id, rawcontactid );
78. Values. Put (data. mimetype, phone. content_item_type );
79. Values. Put (phone. Number, "13921009789 ");
    
80. Values. Put (phone. type, phone. type_mobile );
81. This. getcontext (). getcontentresolver (). insert (Android. provider. contactscontract. Data. content_uri, values );
    
82. // Input email data to the data table
    
83. Values. Clear ();
84. Values. Put (data. raw_contact_id, rawcontactid );
85. Values. Put (data. mimetype, email. content_item_type );
86. Values. Put (email. Data, "kesenhoo@gmail.com ");
    
87. Values. Put (email. type, email. type_work );
88. This. getcontext (). getcontentresolver (). insert (Android. provider. contactscontract. Data. content_uri, values );
    
89. }
91. /** Method 2 for adding a contact:
    
92. * Add Contacts in batches
93. * @ Throws throwable
    
94. */
    
95. Public
    Void testsave ()
    Throws throwable
    
96. {
97. // Official Document location: reference \ Android \ provider \ contactscontract.rawcontacts.html
    
98. // Create an arraylist to store batch Parameters
    
99. Arraylist <contentprovideroperation> Ops = new arraylist <contentprovideroperation> ();
    
100. Int rawcontactinsertindex = ops. Size ();
     
101. Ops. Add (contentprovideroperation. newinsert (rawcontacts. content_uri)
102. . Withvalue (rawcontacts. account_type, null)
     
103. . Withvalue (rawcontacts. account_name, null)
     
104. . Build ());
105. // Official Document location: reference \ Android \ provider \ contactscontract.data.html
     
106. // Withvaluebackreference the ID of the preceding contact
     
107. Ops. Add (contentprovideroperation. newinsert (Android. provider. contactscontract. Data. content_uri)
     
108. . Withvaluebackreference (data. raw_contact_id, rawcontactinsertindex)
109. . Withvalue (data. mimetype, structuredname. content_item_type)
110. . Withvalue (structuredname. given_name, "James ")
     
111. . Build ());
112. Ops. Add (contentprovideroperation. newinsert (Android. provider. contactscontract. Data. content_uri)
     
113. . Withvaluebackreference (data. raw_contact_id, rawcontactinsertindex)
114. . Withvalue (data. mimetype, phone. content_item_type)
115. . Withvalue (phone. Number, "13671323809 ")
     
116. . Withvalue (phone. type, phone. type_mobile)
117. . Withvalue (phone. label, "mobile phone number ")
     
118. . Build ());
119. Ops. Add (contentprovideroperation. newinsert (Android. provider. contactscontract. Data. content_uri)
     
120. . Withvaluebackreference (data. raw_contact_id, rawcontactinsertindex)
121. . Withvalue (data. mimetype, email. content_item_type)
122. . Withvalue (email. Data, "kesen@gmail.com ")
     
123. . Withvalue (email. type, email. type_work)
124. . Build ());
125. Contentproviderresult [] Results = This. getcontext (). getcontentresolver ()
     
126. . Applybatch (contactscontract. Authority, OPS );
127. For (contentproviderresult result: Results)
     
128. {
129. Log. I (TAG, result. Uri. tostring ());
130. }
131. }
132. }