最小的Andr​​oid API级别运行谷歌地图Android的API V2

我已经开发了使用谷歌地图的Andr​​oid API v1的移动应用程序，我打算将它移植到最近谷歌地图Android的API V2，所推荐的谷歌。

I have developed a mobile application that uses Google Maps Android API v1, and I plan to port it to the recent Google Maps Android API v2, as recommended by Google.

不过，我的应用程序还针对Android 2.1的设备，我无法弄清楚是否V2地图将运行在这些设备上。我发现一些参考提示V2应与API级别8和10（这里，的here 和的这里），前提是OpenGL ES 2.0的支持移动设备，但没有任何有关空气污染指数7。

However, my application also targets Android 2.1 devices, and I cannot figure out whether the v2 Maps will run on such devices. I have found some reference suggesting that v2 should work with API level 8 and 10 (here, here and here), provided that OpenGL ES 2.0 is supported by the mobile device, but nothing about API level 7.

我的问题因此：？什么是最小的Andr​​oid API级别运行谷歌地图Android的API V2

My question is therefore: What is the minimum Android API level to run Google Maps Android API v2?

TIA！