读取联系人信息 （源码版）

添加权限

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

动态添加权限

   ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_CONTACTS}, 3);

读取联系人信息

  //查询 raw_contacts表 contact_id 列
        Uri uri = Uri.parse("content://com.android.contacts/raw_contacts");
        Uri dataUri = Uri.parse("content://com.android.contacts/data");
        Cursor cursor = getContentResolver().
                query(uri, new String[]{"contact_id"}, null, null, null);
        while (cursor.moveToNext()) {
            String contactId = cursor.getString(0);
            if (contactId != null) {
                //根据raw_contact_id去查询data表 data1列和mimetype_id列
                Cursor dataCursor = getContentResolver().
                        query(dataUri, new String[]{"data1", "mimetype"}, "raw_contact_id=?", new String[]{contactId}, null);
                while (dataCursor.moveToNext()) {
                    String data1 = dataCursor.getString(0);
                    String mimetype = dataCursor.getString(1);
                    Log.i("readContantsActivity", "data1: " + data1 + "mimetype_id" + mimetype);
                }
            }

        }