Question

我知道有很多关于这个主题的问题，但答案对我来说并没有用。我已经生成了密钥，添加了片段代码，引用了api密钥，但屏幕只是灰色，正如其他人所描述的那样，缺少地图问题。我的代码如下。

activity_main.xml中

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

 <fragment
        android:id="@+id/map"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        class="com.google.android.gms.maps.MapFragment" />

</RelativeLayout>

清单文件

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

    <uses-sdk
        android:minSdkVersion="19"
        android:targetSdkVersion="19" />


    <uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
<!-- The following two permissions are not required to use
     Google Maps Android API v2, but are recommended. -->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

    <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.gms.version"
    android:value="@integer/google_play_services_version" />

        <activity
            android:name="com.example.flymap_awc.MainActivity"
            android:label="@string/app_name" >
            <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="AIzaSyADeLIgFS42YPAPjUjODWj5nH4y_ZKVfBM"/>
    </application>

</manifest>

主要活动Java文件

> package com.example.flymap_awc;
> 
> import android.app.Activity; import android.os.Bundle; import
> android.view.Menu;
> 
> import com.google.android.gms.maps.CameraUpdateFactory; import
> com.google.android.gms.maps.GoogleMap; import
> com.google.android.gms.maps.MapFragment; import
> com.google.android.gms.maps.model.BitmapDescriptorFactory; import
> com.google.android.gms.maps.model.LatLng; import
> com.google.android.gms.maps.model.Marker; import
> com.google.android.gms.maps.model.MarkerOptions;
> 
> public class MainActivity extends Activity {   static final LatLng
> HAMBURG = new LatLng(53.558, 9.927);   static final LatLng KIEL = new
> LatLng(53.551, 9.993);   private GoogleMap map;
> 
>   @Override   protected void onCreate(Bundle savedInstanceState) {
>     super.onCreate(savedInstanceState);
>     setContentView(R.layout.activity_main);
>     map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map))
>         .getMap();
>     Marker hamburg = map.addMarker(new MarkerOptions().position(HAMBURG)
>         .title("Hamburg"));
>     Marker kiel = map.addMarker(new MarkerOptions()
>         .position(KIEL)
>         .title("Kiel")
>         .snippet("Kiel is cool")
>         .icon(BitmapDescriptorFactory
>             .fromResource(R.drawable.ic_launcher)));
> 
>     // Move the camera instantly to hamburg with a zoom of 15.
>     map.moveCamera(CameraUpdateFactory.newLatLngZoom(HAMBURG, 15));
> 
>     // Zoom in, animating the camera.
>     map.animateCamera(CameraUpdateFactory.zoomTo(10), 2000, null);   }
> 
>   @Override   public boolean onCreateOptionsMenu(Menu menu) {
>     getMenuInflater().inflate(R.menu.main, menu);
>     return true;   }
> 
> }

最终的目标是使用传感器侦听器进行旋转以在地图上移动，但首先我需要让地图显示出来。如果有人可以帮助指出我做错了什么，我将非常感激。谢谢

Answer 1

请找到可能对您有所帮助的以下考虑因素：

1 . Have you turned on Google Maps Android API V2 in developer console?
2 . Are you using any new device where map has not been loaded yet, This might work as I had similar issue on a samsung device.
 This might not be a concrete step but you can try

由于

Android谷歌地图应用程序（地图未显示）

1 个答案: