Android入门中,记录学习中的遇到的问题和一些个人总结。 联系人数据库路径为:/data/data/com.android.providers.contacts/database/contacts2.db 权限问题:安卓6.0以上只是在XML中写权限还不够,代码中也需要写。
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && checkSelfPermission(Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) { requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, 10); } public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) { if (requestCode == 10) { if (grantResults[0] == PackageManager.PERMISSION_GRANTED) { //有权限,可以进行获取联系人操作 } else { Toast.makeText(this, "您阻止了权限", Toast.LENGTH_SHORT).show(); } }
第一种方法,代码也最简洁,SORT_KEY_PRIMARY还能按中文名字拼音排序,个人推荐:
1 Cursor cursor = context.getContentResolver().query(Phone.CONTENT_URI, new String[]{Phone.DISPLAY_NAME, Phone.NUMBER}, null, null, Phone.SORT_KEY_PRIMARY); 2 if (cursor != null) { 3 while (cursor.moveToNext()) { 4 ContactBean contact = new ContactBean(); 5 contact.setName(cursor.getString(0)); 6 contact.setPhone(cursor.getString(1)); 7 lists.add(contact); 8 } 9 cursor.close(); 10 }
第二种方法:可根据联系人id获取相关信息
1 Uri uri = Uri.parse("content://com.android.contacts/contacts"); 2 ContentResolver resolver = context.getContentResolver(); 3 Cursor cursor = resolver.query(uri, new String[]{"_id"}, null, null, null); 4 if (cursor != null && cursor.getCount() > 0){ 5 while (cursor.moveToNext()) { 6 Contact contact = new Contact(); 7 int contactId = cursor.getInt(0); 8 uri = Uri.parse("content://com.android.contacts/contacts/" + contactId + "/data"); 9 Cursor cursor1 = resolver.query(uri, new String[]{"mimetype", "data1"}, null, null, null); 10 if (cursor1 != null && cursor1.getCount() > 0){ 11 while (cursor1.moveToNext()) { 12 String mimeType = cursor1.getString(0); 13 String data1 = cursor1.getString(1); 14 if ("vnd.android.cursor.item/name".equals(mimeType)) { //是姓名 15 contact.setName(data1); 16 } else if ("vnd.android.cursor.item/phone_v2".equals(mimeType)) { //手机 17 contact.setPhone(data1); 18 } 19 } 20 cursor1.close(); 21 lists.add(contact); 22 } 23 } 24 cursor.close(); 25 }
第三种方法:跟第二种方法比较,只有第二个uri不同,(PS:此方法有BUG,获取到一部分人的数据为NULL,但联系人总数是一样的。据说是因为以前删除过联系人,本人手机未ROOT,也没法看数据库表的数据,希望有人能给个解释)
1 Uri uri4Contacts = Uri.parse(ContactsContract.AUTHORITY_URI + "/contacts"); 2 Uri uri4Data = Uri.parse(ContactsContract.AUTHORITY_URI + "/data"); 3 List<Contact> lists = new ArrayList<>(); 4 Cursor cursor1 = context.getContentResolver().query(uri4Contacts, new String[]{"_id"}, null, null, null); 5 if (cursor1.moveToNext()) { 6 Contact contact = new Contact(); 7 String id = cursor1.getString(0); 8 Cursor cursor2 = context.getContentResolver().query(uri4Data, new String[]{"data1", "mimetype"}, "row_contact_id = ?", new String[]{id}, null); 9 if (cursor2.moveToNext()) { 10 String data = cursor2.getString(0); 11 String mimetype = cursor2.getString(1); 12 if (mimetype.equals("vnd.android.cursor.item/name")) { 13 contact.setName(data); 14 } else if (mimetype.equals("vnd.android.cursor.item/phone_v2")) { 15 contact.setPhone(data); 16 } 17 } 18 }
时间: 2024-10-08 01:49:42