真机安装后的Google Maps API V2空白地图 [英] Google Maps API V2 blank map after installation on real device

问题描述

当我使用设备从 eclipse 模拟应用程序时一切正常，但是在生成 apk 文件并安装后，我的地图是空白的.

我按照以下步骤操作:

1. 生成新的密钥工具

   keytool -genkey -v -keystore my-keystore-name.keystore-alias myKey1 -keyalg RSA -keysize 2048 -validity 20000

2. 从 Eclipse 我使用从步骤 1 中获得的密钥库文件(和密钥)导出签名的应用程序包".

3. 将 apk 复制到设备并选择package installer"

清单:

 <?xml version="1.0" encoding="utf-8"?><清单 xmlns:android="http://schemas.android.com/apk/res/android"包=apt.login"机器人:版本代码=1"android:versionName="1.0" ><使用-sdkandroid:minSdkVersion="11"android:targetSdkVersion="17"/><uses-permission android:name="android.permission.INTERNET"/><权限android:name="apt.login.permission.MAPS_RECEIVE"android:protectionLevel="签名"/><使用权限android:name="apt.login.permission.MAPS_RECEIVE"/><使用权限android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/><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="android.permission.ACCESS_COARSE_LOCATION"/><uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/><申请android:permission="android.permission.WRITE_EXTERNAL_STORAGE"机器人:allowBackup =真"android:icon="@drawable/ic_launcher"android:label="@string/app_name"android:theme="@style/AppTheme"机器人:testOnly =假"机器人:调试=真"><uses-library android:name="com.google.android.maps"/><元数据android:name="com.google.android.maps.v2.API_KEY"android:value="XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"/><元数据android:name="com.google.android.gms.version"android:value="@integer/google_play_services_version"/><活动android:name="apt.login.UIactivity.Login"android:label="@string/app_name" ><意图过滤器><action android:name="android.intent.action.MAIN"/><category android:name="android.intent.category.LAUNCHER"/></意图过滤器></活动><活动android:name="apt.login.UIactivity.Loading"></活动><活动android:name="apt.login.UIactivity.Mapa"></活动><活动android:name="apt.login.UIactivity.Splitbar"android:label="@string/app_name" ></活动></应用程序></清单>

解决方案

您应该尝试将包含您的 API KEY 的 <meta-data/> 移动到结束标记之前.

您也没有以下内容，您应该:

When I emulate the app from eclipse using the device everything's OK, but after I generate the apk file and have it installed, my map is blank.

I followed these steps:

1. Generate a new keytool

   keytool -genkey -v -keystore my-keystore-name.keystore
           -alias myKey1 -keyalg RSA -keysize 2048 -validity 20000 
   

2. From Eclipse I "Export signed application package" using the keystore file (and key) I got from step 1.

3. Copy the apk to the device and select "package installer"

Manifest:

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

    <uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="17" />

    <uses-permission android:name="android.permission.INTERNET"/>

    <permission

    android:name="apt.login.permission.MAPS_RECEIVE"

    android:protectionLevel="signature"/>

    <uses-permission
    android:name="apt.login.permission.MAPS_RECEIVE"/>

    <uses-permission
    android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>

    <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="android.permission.ACCESS_COARSE_LOCATION"/>

    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>


    <application
        android:permission="android.permission.WRITE_EXTERNAL_STORAGE"
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" 
        android:testOnly="false"
        android:debuggable="true">    



         <uses-library android:name="com.google.android.maps" />
         <meta-data

            android:name="com.google.android.maps.v2.API_KEY"

            android:value="XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"/>

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


        <activity
            android:name="apt.login.UIactivity.Login"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

        <activity
            android:name="apt.login.UIactivity.Loading">
        </activity>
        <activity
            android:name="apt.login.UIactivity.Mapa">
        </activity>

        <activity
            android:name="apt.login.UIactivity.Splitbar"
            android:label="@string/app_name" >
        </activity>

    </application>

    </manifest>

解决方案

You should try moving the <meta-data/> containing your API KEY to just before the closing tag.

You also don't have the following in there and you should:

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

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