我使用谷歌Android地图，地图将显示在模拟器，但不是在设备..任何一个可以帮我解决这个问题。

i am using android Google map, the map is displayed in emulator but not in the device.. can any one help me to solve the problem.

推荐答案

请它作为一个签名的应用程序，并卸载previous应用程序，然后重新安装。因为我面临同样的问题，这将正常工作。

Make it as a signed application and uninstall the previous application, then install it again. This will work as I faced the same problem.