Map Rendering nicht in Google Maps App

Question

Wenn ich meine Google Maps Aktivität laufen beginnt es perfekt, aber die Karte nicht erscheint, bleibt es so wie im Bild unten gezeigt:

The emulator stays like this

Hier meine Code:

MapsActivity.java Code:

public class MapsActivity extends FragmentActivity implements OnMapReadyCallback { 

    private GoogleMap mMap; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_maps); 
     // Obtain the SupportMapFragment and get notified when the map is ready to be used. 
     SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager() 
       .findFragmentById(R.id.map); 
     mapFragment.getMapAsync(this); 
    } 


    @Override 
    public void onMapReady(GoogleMap googleMap) { 
     mMap = googleMap; 

     // Add a marker in Sydney and move the camera 
     LatLng sydney = new LatLng(-34, 151); 
     mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney")); 
     mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney)); 
     if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) { 
      return; 
     } 
    } 
} 

activity_maps.xml Code:

<fragment xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:map="http://schemas.android.com/apk/res-auto" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/map" 
    android:name="com.google.android.gms.maps.SupportMapFragment" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    tools:context="com.package.MapsActivity" /> 

google_maps_api.xml Code:

<resources> 
    <string name="google_maps_key" templateMergeStrategy="preserve" translatable="false"> 
     AIzaSyCw_UlNpofyOK_GQZE-ao4OIMaSV1iYuEI 
    </string> 
</resources> 

Code in Manifest:

<application 
    android:allowBackup="true" 
    android:icon="@mipmap/ic_launcher" 
    android:label="@string/app_name" 
    android:supportsRtl="true" 
    android:theme="@style/AppTheme" 
    android:name="android.support.multidex.MultiDexApplication"> 
    <activity android:name=".MainActivity"> 
     <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="@string/google_maps_key" /> 

    <meta-data 
     android:name="com.google.android.gms.version" 
     android:value="@integer/google_play_services_version" /> 

    <activity 
     android:name=".MapsActivity" 
     android:label="@string/title_activity_maps"></activity> 
</application> 

Fehler:

08-31 00:24:37.245 4010-4010/com.myPackage.myPackage E/AndroidRuntime: FATAL EXCEPTION: main Process: com.myPackage.myPackage, PID: 4010 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.myPackage.myPackage/com.myPackage.myPackage.MapsActivity}: android.view.InflateException: Binary XML file line #1: Binary XML file line #1: Error inflating class fragment at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) at android.app.ActivityThread.-wrap11(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) Caused by: android.view.InflateException: Binary XML file line #1: Binary XML file line #1: Error inflating class fragment at android.view.LayoutInflater.inflate(LayoutInflater.java:539) at android.view.LayoutInflater.inflate(LayoutInflater.java:423) at android.view.LayoutInflater.inflate(LayoutInflater.java:374) at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java:393) at android.app.Activity.setContentView(Activity.java:2166) at com.myPackage.myPackage.MapsActivity.onCreate(MapsActivity.java:22) at android.app.Activity.performCreate(Activity.java:6237) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)  at android.app.ActivityThread.-wrap11(ActivityThread.java)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)  at android.os.Handler.dispatchMessage(Handler.java:102)  at android.os.Looper.loop(Looper.java:148)  at android.app.ActivityThread.main(ActivityThread.java:5417)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)  Caused by: android.view.InflateException: Binary XML file line #1: Error inflating class fragment at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:782) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704) at android.view.LayoutInflater.inflate(LayoutInflater.java:492) at android.view.LayoutInflater.inflate(LayoutInflater.java:423)  at android.view.LayoutInflater.inflate(LayoutInflater.java:374)  at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java:393)  at android.app.Activity.setContentView(Activity.java:2166)  at com.myPackage.myPackage.MapsActivity.onCreate(MapsActivity.java:22)  at android.app.Activity.performCreate(Activity.java:6237)  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)  at android.app.ActivityThread.-wrap11(ActivityThread.java)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)  at android.os.Handler.dispatchMessage(Handler.java:102)  at android.os.Looper.loop(Looper.java:148)  at android.app.ActivityThread.main(ActivityThread.java:5417)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)  Caused by: java.lang.RuntimeException: The API key can only be specified once. It is recommended that you use the meta-data tag with the name: com.google.android.geo.API_KEY in the element of AndroidManifest.xml at maps.y.k.a(Unknown Source) at maps.v.c.a(Unknown Source) at com.google.android.gms.maps.internal.CreatorImpl.b(Unknown Source) at com.google.android.gms.maps.internal.CreatorImpl.newMapFragmentDelegate(Unknown Source) at vl.onTransact(:com.google.android.gms.DynamiteModulesB:62) at android.os.Binder.transact(Binder.java:387) at qle.newMapFragmentDelegate(:com.google.android.gms:179) at com.google.android.gms.maps.internal.CreatorImpl.newMapFragmentDelegate(:com.google.android.gms:101) at qld.onTransact(:com.google.android.gms:62) at android.os.Binder.transact(Binder.java:387) at com.google.android.gms.maps.internal.zzc$zza$zza.zzag(Unknown Source) at com.google.android.gms.maps.SupportMapFragment$zzb.zzbow(Unknown Source) at com.google.android.gms.maps.SupportMapFragment$zzb.zza(Unknown Source) at com.google.android.gms.dynamic.zza.zza(Unknown Source) at com.google.android.gms.dynamic.zza.onInflate(Unknown Source) at com.google.android.gms.maps.SupportMapFragment.onInflate(Unknown Source) at android.support.v4.app.Fragment.onInflate(Fragment.java:1142) at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2287) at android.support.v4.app.FragmentController.onCreateView(FragmentController.java:120) at android.support.v4.app.FragmentActivity.dispatchFragmentsOnCreateView(FragmentActivity.java:356) at android.support.v4.app.BaseFragmentActivityHoneycomb.onCreateView(BaseFragmentActivityHoneycomb.java:31) at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:79) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:754) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)  at android.view.LayoutInflater.inflate(LayoutInflater.java:492)  at android.view.LayoutInflater.inflate(LayoutInflater.java:423)  at android.view.LayoutInflater.inflate(LayoutInflater.java:374)  at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java:393)  at android.app.Activity.setContentView(Activity.java:2166)  at com.myPackage.myPackage.MapsActivity.onCreate(MapsActivity.java:22)  at android.app.Activity.performCreate(Activity.java:6237)  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)  at android.app.ActivityThread.-wrap11(ActivityThread.java)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)  at android.os.Handler.dispatchMessage(Handler.java:102)  at android.os.Looper.loop(Looper.java:148)  at android.app.ActivityThread.main(ActivityThread.java:5417)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)  08-31 00:25:52.669 4235-4262/com.myPackage.myPackage E/Surface: getSlotFromBufferLocked: unknown buffer: 0xae3f12a0 08-31 00:26:21.749 4235-4366/com.myPackage.myPackage E/b: Authentication failed. Timeout while trying to contact the server. 08-31 00:27:06.051 4235-4366/com.myPackage.myPackage E/b: Authentication failed. Timeout while trying to contact the server. 08-31 00:27:53.984 4235-4366/com.myPackage.myPackage E/b: Authentication failed. Timeout while trying to contact the server. 08-31 00:28:52.837 4235-4366/com.myPackage.myPackage E/b: Authentication failed. Timeout while trying to contact the server. 08-31 00:30:08.276 4235-4366/com.myPackage.myPackage E/b: Authentication failed. Timeout while trying to contact the server. 08-31 00:31:47.002 4235-4366/com.myPackage.myPackage E/b: Authentication failed. Timeout while trying to contact the server. 08-31 00:34:05.692 4235-4366/com.myPackage.myPackage E/b: Authentication failed. Timeout while trying to contact the server. 08-31 00:37:23.748 4235-4366/com.myPackage.myPackage E/b: Authentication failed. Timeout while trying to contact the server. 08-31 00:42:25.948 4235-4366/com.myPackage.myPackage E/b: Authentication failed. Timeout while trying to contact the server. 08-31 00:50:09.034 4235-4366/com.myPackage.myPackage E/b: Authentication failed. Timeout while trying to contact the server. 08-31 01:02:08.900 4235-4366/com.myPackage.myPackage E/b: Authentication failed. Timeout while trying to contact the server. 08-31 01:21:00.389 4235-4366/com.myPackage.myPackage E/b: Authentication failed. Timeout while trying to contact the server. 08-31 01:50:50.869 4235-4366/com.myPackage.myPackage E/b: Authentication failed. Timeout while trying to contact the server. 08-31 02:20:33.906 3416-3496/com.myPackage.myPackage E/Surface: getSlotFromBufferLocked: unknown buffer: 0xae3f10e0 08-31 02:21:03.773 3416-3673/com.myPackage.myPackage E/b: Authentication failed. Timeout while trying to contact the server.

Answer 1

• Überprüfen Sie zuerst Google Maps Android API in Google Entwickler aktiviert ist Konsole
• Überprüfen Sie den Paketnamen Projekt ist direkt in Google dev Konsole
• Dann überprüfen, welche Art von Karte, die Sie wollen (Debug/Release)
• Prüfung der richtige Schlüssel zu Ihrer Ressourcen hinzugefügt wird, wenn Sie Sie Release-Typ wollen müssen fügen Sie es auch auf debug und release-Datei hinzu (Hinzufügen nur Debug-Datei Schlüssel funktioniert nicht, wenn Sie den Relaistyp wollen)
• Dann überprüfen Sie den SHA-Schlüssel ist von Ihrem PC und der richtige (Debug-Taste/Release-Taste/oder Sie kann beide Schlüssel in Entwickler Konsole hinzufügen)

Answer 2

Es sieht aus, als ob Sie Sie benannt haben Meta-Daten-Token falsch:

Caused by: java.lang.RuntimeException: The API key can only be specified once. It is recommended that you use the meta-data tag with the name: com.google.android.geo.API_KEY in the element of AndroidManifest.xml at maps.y.k.a(Unknown Source) at maps.v.c.a(Unknown Source) at 

Sie setzen:

<meta-data 
     android:name="com.google.android.maps.v2.API_KEY" 
     android:value="@string/google_maps_key" /> 

versuchen, es zu ändern:

<meta-data 
      android:name="com.google.android.geo.API_KEY" 
      android:value="@string/google_maps_key" /> 

Versuchen Sie dies.