我最近一直在更新我的应用,现在我的谷歌地图没有显示出来。它只是用加号和减号按钮显示空白而没有别的。
我的地图片段是:
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
public class BreweryTappedMap extends Fragment {
public BreweryTappedMap(){}
String beerId = "";
GoogleMap mMap;
private SupportMapFragment fragment;
private GoogleMap map;
String userID;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.activity_brewmap, container, false);
setHasOptionsMenu(true);
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getActivity());
String userName = prefs.getString("userName", null);
userID = prefs.getString("userID", null);
return rootView;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
FragmentManager fm = getChildFragmentManager();
fragment = (SupportMapFragment) fm.findFragmentById(R.id.map);
if (fragment == null) {
fragment = SupportMapFragment.newInstance();
fm.beginTransaction().replace(R.id.map, fragment).commit();
}
}
@Override
public void onResume() {
super.onResume();
if (map == null) {
map = fragment.getMap();
String url = "myMap";
new GetVisitedBreweries(getActivity(), map).execute(url); }
}
}
xml布局是:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:map="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<RelativeLayout
android:id="@+id/map"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</RelativeLayout>
</RelativeLayout>
我的机器人清单:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.mike.beerportfoliomaterial" >
<uses-feature
android:glEsVersion="0x00020000"
android:required="true"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<!-- Permission to write to external storage -->
<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"/>
<uses-permission android:name="android.permission.CALL_PHONE" />
<application
android:allowBackup="true"
android:icon="@drawable/logo"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity android:label="@string/app_name" android:name="com.example.mike.beerportfoliomaterial.MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<receiver android:name="com.example.mike.beerportfoliomaterial.HelloWidget" android:label="Beer of the Day">
<intent-filter> <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
<action android:name="android.appwidget.action.APPWIDGET_ENABLED" />
</intent-filter>
<meta-data android:name="android.appwidget.provider" android:resource="@xml/hello_widget_provider" />
</receiver>
<receiver android:name="com.example.mike.beerportfoliomaterial.SearchWidget" android:label="Search ">
<intent-filter>
<action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
<action android:name="android.appwidget.action.APPWIDGET_ENABLED" />
</intent-filter>
<meta-data android:name="android.appwidget.provider" android:resource="@xml/search_widget" />
</receiver>
<activity android:label="@string/app_name" android:name="com.example.mike.beerportfoliomaterial.LogIn">
<intent-filter>
<category android:name="android.intent.category"/>
</intent-filter>
</activity>
<activity android:label="@string/app_name" android:name="com.example.mike.beerportfoliomaterial.Register" android:screenOrientation="portrait">
<intent-filter>
<category android:name="android.intent.category"/>
</intent-filter>
</activity>
<activity android:label="@string/app_name" android:name="com.example.mike.beerportfoliomaterial.MainDraw" android:screenOrientation="portrait">
<intent-filter>
<category android:name="android.intent.category"/>
</intent-filter>
</activity>
<activity android:label="@string/app_name" android:name="com.example.mike.beerportfoliomaterial.MainDrawer2" android:screenOrientation="portrait">
<intent-filter>
<category android:name="android.intent.category"/>
</intent-filter>
</activity>
<meta-data android:name="com.crashlytics.ApiKey" android:value="myKey"/>
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="myMapsKey"/>
</application>
</manifest>
答案 0 :(得分:3)
我遇到了同样的问题,这是因为API密钥。默认情况下,我使用debug.keystore
来生成SHA-1 key
,我从谷歌获得了API密钥,我在开发时使用了它。一旦应用程序签名,那么地图就无法工作,因此您必须使用用于签署应用程序的相同keystore
文件生成SHA-1密钥。
答案 1 :(得分:1)
我认为您还需要在清单应用标记中使用此功能来启用Google Play服务:
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
以下是如何将其添加为lib:
http://developer.android.com/google/play-services/setup.html
对我来说,在我的/ app / gradle依赖项中添加了这个:
编译'com.google.android.gms:play-services:+'
答案 2 :(得分:0)
如果您获得@integer/google_play_services_version
,通常意味着您尚未将Google Play服务库添加到您的项目中。
答案 3 :(得分:0)