ContentProvider中央檔案館,以及擷取連絡人電話的樣本，contentprovider

ContentProvider中央檔案館,以及擷取連絡人電話的樣本，contentprovider
Android官方文檔介紹的資料存放區方式共有五種,sqlite,SharedPreferences,網路儲存,外儲儲存,檔案儲存體,但是這些資料都無法進行共用,那麼我們就引入了今天的主角:ContentProvider

ContentResolver操作ContentProvider中的資料;可以使用Activity提供的getContentResolver()方法;它有四個相同簽名的方法insert,update,delete,query

擷取連絡人資訊

1. // 通過隱式意圖開啟通訊錄
2. Intent intent =newIntent(Intent.ACTION_PICK,ContactsContract.Contacts.CONTENT_URI);
3. startActivityForResult(intent,1001);

1. // 擷取選擇後的返回結果
2. @Override
3. protectedvoid onActivityResult(int requestCode,int resultCode,Intent data){
4. super.onActivityResult(requestCode, resultCode, data);
5. if(requestCode ==1001){
6. if(resultCode == RESULT_OK){
7. ContentResolver resolver = getContentResolver();
8. Uri uri = data.getData();
9. //uri = content://com.android.contacts/contacts/lookup/0r5-D9ADC7B9BBC9C7B9DBBDADC9/5
10. Cursor cursor = resolver.query(uri,null,null,null,
11. null);
12. if(cursor.moveToFirst()){
13. for(int i =0; i < cursor.getColumnCount(); i++){
14. Log.i("-->", cursor.getColumnNames()[i]+":"+ cursor.getString(i));
15. }

 

1. sort_key:wang hongxiao
2. photo_uri:null
3. send_to_voicemail:0
4. contact_status:null
5. contact_status_label:null
6. pinned:0
7. display_name:wang hongxiao
8. phonebook_label_alt:H
9. phonebook_bucket:23
10. contact_status_res_package:null
11. in_default_directory:1
12. photo_id:null
13. custom_ringtone:null
14. _id:5
15. times_contacted:0
16. phonebook_label:W
17. display_name_alt:hongxiao, wang
18. lookup:0r5-D9ADC7B9BBC9C7B9DBBDADC9
19. phonetic_name:null
20. last_time_contacted:0
21. contact_last_updated_timestamp:1477791122100
22. has_phone_number:1
23. in_visible_group:1
24. display_name_source:40
25. photo_file_id:null
26. is_user_profile:0
27. contact_status_ts:null
28. sort_key_alt:hongxiao, wang
29. phonebook_bucket_alt:8
30. contact_presence:null
31. starred:0
32. photo_thumb_uri:null
33. contact_status_icon:null
34. contact_chat_capability:null
35. phonetic_name_style:0
36. name_raw_contact_id:5

通過分析,我們可以得到我們關心的三個欄位

 

來自為知筆記(Wiz)