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 }
原标题：Android之获取联系人
关键词：Android
我知道了 