Java Android 谷歌地图。仅显示网格

Question

没有显示 map ，只有一个网格。所以我查找了一些示例修复并找到了这个

help needed to publish android app in market

我按照说明完成了步骤，但我的 map 仍然没有显示。我在这里可能缺少什么想法吗？

更新

我刚刚第三次重新创建 key ，但遇到了同样的问题。错误信息如下。

08-12 00:16:51.081: W/PackageManager(52): Unknown permission com.google.android.googleapps.permission.GOOGLE_AUTH.cp in package com.android.providers.contacts    
08-12 00:16:52.281: E/EventHub(52): could not get driver version for /dev/input/mouse0, Not a typewriter
08-12 00:16:52.281: E/EventHub(52): could not get driver version for /dev/input/mice, Not a typewriter
08-12 00:16:52.951: E/System(52): Failure starting core service
08-12 00:16:52.951: E/System(52): java.lang.SecurityException
08-12 00:16:52.951: E/System(52):   at android.os.BinderProxy.transact(Native Method)
08-12 00:16:52.951: E/System(52):   at android.os.ServiceManagerProxy.addService(ServiceManagerNative.java:146)
08-12 00:16:52.951: E/System(52):   at android.os.ServiceManager.addService(ServiceManager.java:72)
08-12 00:16:52.951: E/System(52):   at com.android.server.ServerThread.run(SystemServer.java:176)
08-12 00:16:52.951: E/AndroidRuntime(52): Crash logging skipped, no checkin service
08-12 00:17:00.831: W/ActivityManager(52): Unable to start service Intent { act=com.android.ussd.IExtendedNetworkService }: not found

在 list 中，我指定了这些

 <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
 <uses-permission android:name="android.permission.INTERNET"/>

Answer 1

或者:

• 您没有a valid Maps API key that corresponds with the app signing key that you are using ，或
• 您没有 INTERNET 权限，或者
• 您没有互联网连接