如何在Android mapactivity中显示地图？

Question

I have attached a mapview to my layout and have a it showing a compass and my current location. The problem I have is, that there is no street map shown in the view, so basically I just see the compass and my current location over a blank grid.

Answer 1

When you run or debug through Eclipse your app is signed with your debug key which will have been automatically created. It is not the same as the key you sign your app with when releasing it.

You need to get an API key using your debug key.

See the 'Getting the MD5 Fingerprint of the SDK Debug Certificate' section on http://code.google.com/android/add-ons/google-apis/mapkey.html

Once you are ready to release your app, you replace the debug API key with the API key you are currently using.

Answer 2

Make sure you have the INTERNET permission and a proper API key. Either of those will give you the blank grid effect.

http://code.google.com/android/add-ons/google-apis/mapkey.html

Answer 3

只有在使用adb install {path to app}对应用程序进行签名和上传时才会显示地图，当我使用Eclipse运行或调试时，相同的应用程序无效。

Answer 4

Check out the followings: 1. include jar of maps. 2. generate your certificate and register it. It should work now :)