UDID还是IMEI-更好？ [英] UDID or IMEI- which is better?

问题描述

当开发需要我唯一识别电话用户的应用程序时。我希望一些建议，是否最好使用手机的UDID或IMEI。使用任何优点/缺点。非常感谢所有评论。

解决方案

ANDROID_ID的优点：

1. Settings.Secure.ANDROID_ID。这是设备首次启动时生成和存储的64位数（ ANDROID_ID 对于Android 2.2和4.2不是唯一的）

缺少ANDROID_ID：

2. ANDROID_ID 可以 null






4. 几个制造商的几个设备受到2.2中的 ANDROID_ID 错误的影响，并且它们都具有相同的 ANDROID_ID ，即 9774d56d682e549c 。这也是模拟器报告的同一设备ID

   
   
   

   文档： http://android-developers.blogspot.in/2011/03/identifying-app-installations.html




5. ANDROID_ID 不再唯一标识设备： http://stackoverflow.com/a/13465373/150016

IMEI

1. IMEI < a>数字始终是唯一的。

缺少IMEI

1. 许多设备没有IMEI号码，即三星Galaxy Tab 2

重要链接

• Android设备ID混淆


• http://android-developers.blogspot.in/2011/03/ identify-app-installations.html


• 是否有唯一的Android设备ID？

When developing an app that requires me to uniquely identify phone users. I was hoping for some advice on whether it is best to use a phone's UDID or IMEI. Are there any advantages/disadvantages to using either. All comments would be greatly appreciated

解决方案

Pros of ANDROID_ID:

1. Settings.Secure.ANDROID_ID. This is a 64-bit quantity that is generated and stored when the device first boots (ANDROID_ID is not unique for android 2.2 and from 4.2)

Cons of ANDROID_ID:

1. ANDROID_ID can change on factory reset.

2. ANDROID_ID can be null

3. It can be easily changed on a rooted phone

4. Several devices by several manufacturers are affected by the ANDROID_ID bug in 2.2 and all of them have the same ANDROID_ID, which is 9774d56d682e549c. Which is also the same device id reported by the emulator

   Docs: http://android-developers.blogspot.in/2011/03/identifying-app-installations.html

5. ANDROID_ID no longer uniquely identifies a device: http://stackoverflow.com/a/13465373/150016

Pros of IMEI

1. IMEI number is always unique.

Cons of IMEI

1. Many device don't have IMEI number i.e Samsung galaxy tab 2

Important Links

• android device id confusion
• http://android-developers.blogspot.in/2011/03/identifying-app-installations.html
• Is there a unique Android device ID?

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