Question

谷歌地图没有显示，不知道为什么？应用程序运行但不显示Map只显示我在xml文件中添加的其他xml内容。我添加了google play services_lib和android.support.v4.jar。我也用正确的方法得到了钥匙。善意合作，我被困在这里！

清单文件，

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

   <uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="19" />

  <permission
    android:name="com.example.map.permission.MAPS_RECEIVE"
    android:protectionLevel="signature" />

  <uses-permission android:name="com.example.map.permission.MAPS_RECEIVE" />
  <uses-permission android:name="android.permission.INTERNET" />
  <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
  <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" />
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />

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

   <application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >

    <activity
        android:name="com.example.map.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>

     <service android:name=".TransitionsIntentService" />


        <meta-data
        android:name="com.google.android.maps.v2.API_KEY"
        android:value="AIzaSyBeJoGKnhxYps-youI1xfMZn6S2G05l0PM" />
       <meta-data 
         android:name="com.google.android.gms.version" 
         android:value="@integer/google_play_services_version" />

       </application>    
   </manifest>

Java文件，

 public class MainActivity extends FragmentActivity{

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

    gMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();
    if (gMap == null) {
            Toast.makeText(this, "Google Maps not available",           
         Toast.LENGTH_LONG).show();}
       }

XML文件，

 <RelativeLayout 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: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" >

  <RelativeLayout
    android:id="@+id/relativeLayout1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" >
      <fragment
    android:id="@+id/map"
    android:layout_width="match_parent"
    android:layout_height="280dp"
    android:layout_alignParentBottom="true"
    android:layout_below="@+id/relativeLayout1"
    class="com.google.android.gms.maps.SupportMapFragment"
    map:uiZoomControls="true"
    map:uiZoomGestures="true" />
   </RelativeLayout>

Answer 1

请使用密钥库获取地图密钥。

创建自己的密钥库。
通过云端控制台向新的SHA1注册应用。
替换清单中的地图密钥。
使用新创建的密钥库签署应用程序并获取apk。
安装apk并运行应用

Google地图无法显示

1 个答案: