使用谷歌地图的应用程序只显示灰色瓷砖

Question

我想制作一个应用程序，使用谷歌地图，我已经尝试了几乎所有东西，但我的手机上的应用程序现在只显示灰色瓷砖。我相信我的API密钥是正确的。

继承人我的代码

package net.learn2develop.GoogleMaps; 

import com.google.android.gms.maps.MapView; 
import com.google.android.maps.GeoPoint; 
import com.google.android.maps.MapActivity; 
import com.google.android.maps.MapController; 

import android.os.Bundle; 
import android.app.Activity; 
import android.view.Menu; 

public class MapsActivity extends MapActivity { 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 




} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.main, menu); 
    return true; 
} 

@Override 
protected boolean isRouteDisplayed() { 
    // TODO Auto-generated method stub 
    return false; 
} 

} 

和XML文件

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

<com.google.android.maps.MapView 
    android:id="@+id/mapView" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:enabled="true" 
    android:clickable="true" 
    android:apiKey="AIzaSyBZxTMbzMOaFHau-awITz9CtnxZJkYzryg" 
    /> 

</RelativeLayout> 

和Android清单

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
package="net.learn2develop.GoogleMaps" 
android:versionCode="1" 
android:versionName="1.0" > 

<uses-sdk 
    android:minSdkVersion="8" 
    android:targetSdkVersion="8" /> 

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

<uses-permission android:name="android.permission.INTERNET" /> 
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> 
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/> 
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/> 
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/> 
<permission 
     android:name="net.learn2develop.GoogleMaps.permission.MAPS_RECEIVE" 
     android:protectionLevel="signature"/> 
<uses-permission android:name="net.learn2develop.GoogleMaps.permission.MAPS_RECEIVE"/> 

<application 
    android:allowBackup="true" 
    android:icon="@drawable/ic_launcher" 
    android:label="@string/app_name" 
    android:theme="@style/AppTheme" > 
    <meta-data 
     android:name="com.google.android.maps.v2.API_KEY" 
     android:value="AIzaSyBZxTMbzMOaFHau-awITz9CtnxZJkYzryg"/> 
    <uses-library android:name="com.google.android.maps"></uses-library> 
    <activity 
     android:name=".MapsActivity" 
     android:label="@string/app_name" > 
     <intent-filter> 
      <action android:name="android.intent.action.MAIN" /> 

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

</manifest> 

Answer 1

要么你没有互联网连接，或您的API密钥不被授权为您的组合包名称和签名密钥签名。检查LogCat以获取与授权有关的警告。