谷歌地图V2映射总是空白

我想实现在Android 2.3.3谷歌的新API V2与debug.keystore谷歌地图V2映射总是空白

我做什么都得到了一个空白的地图..

代码：

public class MainFragment extends FragmentActivity{ 

    @Override 
    protected void onCreate(Bundle arg0) { 
     super.onCreate(arg0); 
     setContentView(R.layout.activity_map); 
    }  
}

activity_map.xml：

<?xml version="1.0" encoding="utf-8"?> 
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" > 

    <fragment 
     android:name="com.WhosAround.MainFragment" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     class="com.google.android.gms.maps.SupportMapFragment"/> 

</FrameLayout>

的Manifest.xml：

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.WhosAround" 
    android:versionCode="1" 
    android:versionName="1.0" > 

    <uses-feature 
     android:glEsVersion="0x00020000" 
     android:required="true" /> 

    <uses-sdk 
     android:minSdkVersion="10" 
     android:targetSdkVersion="10" /> 

    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" /> 
    <uses-permission android:name="com.WhosAround.permission.MAPS_RECEIVE" /> 

    <permission 
     android:name="com.WhosAround.permission.C2D_MESSAGE" 
     android:protectionLevel="signature" /> 
    <permission 
     android:name="com.WhosAround.permission.MAPS_RECEIVE" 
     android:protectionLevel="signature" /> 

    <uses-permission android:name="com.example.permission.MAPS_RECEIVE" /> 
    <uses-permission android:name="com.WhosAround.permission.C2D_MESSAGE" /> 
    <uses-permission android:name="android.permission.GET_ACCOUNTS" /> 
    <uses-permission android:name="android.permission.WAKE_LOCK" /> 
    <uses-permission android:name="android.permission.INTERNET" /> 
    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" /> 
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> 
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> 
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> 
    <uses-permission android:name="android.permission.VIBRATE" /> 
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" /> 

    <application 
     android:name="com.WhosAround.AppVariables" 
     android:allowBackup="true" 
     android:icon="@drawable/questionmark" 
     android:label="Who&apos;s Around?" 
     android:theme="@android:style/Theme.NoTitleBar" 
     android:windowSoftInputMode="stateHidden" > 
     <uses-library android:name="com.google.android.maps" /> 
     <!-- android:name="com.WhosAround.Activities.PreLoader" --> 
     <activity 
      android:name=".MainFragment" 
      android:configChanges="orientation" 
      android:label="@string/app_name" 
      android:screenOrientation="portrait" > 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 

       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
     </activity> 

     <meta-data 
      android:name="com.google.android.maps.v2.API_KEY" 
      android:value="my_key_generated_from_google" /> 
    </application> 

</manifest>

什么想法？

来源

2013-03-07 Asaf Nevo

为什么你包裹着的FrameLayout的SupportMapFragment？尝试只有片段。 – 2013-03-07 18:54:05