前言：

在上一篇的双卡双待（一）中介绍了双卡双待的基础知识，实际项目中不一定会用到，如果你的项目中需要涉及到双卡双待，本篇博文可能会对你有帮助！

1.识别通话记录来自哪一张sim卡

关键代码：

 List<CallInfo> infos = new ArrayList();
//获取相关的sim卡信息public static List<CallInfo> getCallInfos(Context context) throws InvocationTargetException {Cursor cursor = null;Uri uri = null;List<CallInfo> infos = new ArrayList<CallInfo>();ContentResolver resolver = context.getContentResolver();boolean s_bSamsung = true;//判断是否为三星if (Build.VERSION_CODES.M <= Build.VERSION.SDK_INT && s_bSamsung){uri = Uri.parse("content://logs/call");//三星手机}else {uri = CallLog.Calls.CONTENT_URI;}try {if (ActivityCompat.checkSelfPermission(context, Manifest.permission.READ_CALL_LOG) != PackageManager.PERMISSION_GRANTED) {ActivityCompat.requestPermissions((Activity) context, new String[]{Manifest.permission.READ_CALL_LOG},1);}else {cursor = resolver.query(uri, null, null, null, null);while (cursor.moveToNext()){String number = cursor.getString(cursor.getColumnIndex("number"));long date = cursor.getLong(cursor.getColumnIndex("date"));int type = cursor.getInt(cursor.getColumnIndex("type"));//小米手机没有双卡双待识别的功能String  slotId = cursor.getString(cursor.getColumnIndex("sim_id"));//适用于三星手机//String slotId = cursor.getString(cursor.getColumnIndex("simid"));//魅族手机String slotStr;if (slotId.equals("0")){Log.e("pk","slotId==0");slotStr = "卡1";}else if(slotId.equals("1")){slotStr = "卡2";}else {slotStr = "未知";}infos.add(new CallInfo(number, date, type,slotStr));}cursor.close();}}catch (Exception e){Log.e("mi",e.getMessage());}return infos;}

2.注意事项：

①在manifest中添加权限
<uses-permission android:name="android.permission.READ_CALL_LOG" />

②获取到的slotStr是从0开始的（0为卡1；1为卡2），所以在显示为哪一张卡的时候，需要+1.

2.可用的设备：

1.支持的设备

目前支持三星设备、魅族设备

2.不支持的设备

目前不支持小米设备

3.支持系统

目前支持5.0及以上的系统

4.逻辑判断

①三星设备

Uri uri = Uri.parse("content://logs/call");
cursor = resolver.query(uri, null, null, null, null);
while (cursor.moveToNext()){String  slotId = cursor.getString(cursor.getColumnIndex("sim_id"));//获取卡槽的位置
}

②魅族设备

Uri uri = CallLog.Calls.CONTENT_URI;;
cursor = resolver.query(uri, null, null, null, null);
while (cursor.moveToNext()){String slotId = cursor.getString(cursor.getColumnIndex("simid"));//获取卡槽的位置
}

有新的数据之后再更新