Java Can'；t通过android应用程序访问谷歌服务器

我正在开发一款android应用程序，可以访问地图API，但我遇到了一个错误：

谷歌地图Android API﹕ 未能加载映射。联系谷歌时出错 服务器。这可能是身份验证问题（但可能是由于 网络错误）

已经在谷歌API控制台中完成了密钥和激活

这些是我的文件：

舱单：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="hflopes.mapas" >

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

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

    <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" />
        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />
        <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="AIzaSyBTObQnY1mxYwXw1g8txH5ApBu8ovxv730" />
        <activity android:name=".MostraAlunosProximos"></activity>
        <activity
            android:name=".mapas"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

</manifest>

有什么想法吗

---

感谢您的帮助

我完成了这项工作并开始使用我的设备。试试看

清单

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

    <uses-sdk
        android:maxSdkVersion="20"
        android:minSdkVersion="17"
        android:targetSdkVersion="17" />

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

    <!-- Required OpenGL ES 2.0. for Maps V2 -->
    <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="br.com.example.mapsexample.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>

        <!-- Goolge API Key -->
        <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="your_api_key_here" />
        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />
    </application>

</manifest>

布局图

<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"
    tools:context=".MainActivity" >

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

</RelativeLayout>

我也这么做了

在创建时，在您的

mostraalunoproximos

类中尝试此操作

int status = GooglePlayServicesUtil
                .isGooglePlayServicesAvailable(getBaseContext());

        // Showing status
        if (status != ConnectionResult.SUCCESS) { // Google Play Services
                                                    // are
                                                    // not available

            int requestCode = 10;
            Dialog dialog = GooglePlayServicesUtil.getErrorDialog(status,
                    this, requestCode);
            dialog.show();

        } else { // Google Play Services are available

            SupportMapFragment fm = (SupportMapFragment) getSupportFragmentManager()
                    .findFragmentById(R.id.mapa);

            // Getting GoogleMap object from the fragment
            if (fm != null) {
                googleMap = fm.getMap();
            }

// Enabling MyLocation Layer of Google Map
            googleMap.setMyLocationEnabled(true);
}

并在xml文件的

fragment

内添加这一行

android:name=“com.google.android.gms.maps.SupportMapFragment”

。 我还看到google play服务中有两个metadeta删除了它

希望这有助于解决问题

它在构建时丢失了这个

 signingConfigs {
        debug {
            storeFile file("debug.jks")
        }
    }

谢谢你的帮助

<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"
    tools:context=".MainActivity" >

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

</RelativeLayout>

int status = GooglePlayServicesUtil
                .isGooglePlayServicesAvailable(getBaseContext());

        // Showing status
        if (status != ConnectionResult.SUCCESS) { // Google Play Services
                                                    // are
                                                    // not available

            int requestCode = 10;
            Dialog dialog = GooglePlayServicesUtil.getErrorDialog(status,
                    this, requestCode);
            dialog.show();

        } else { // Google Play Services are available

            SupportMapFragment fm = (SupportMapFragment) getSupportFragmentManager()
                    .findFragmentById(R.id.mapa);

            // Getting GoogleMap object from the fragment
            if (fm != null) {
                googleMap = fm.getMap();
            }

// Enabling MyLocation Layer of Google Map
            googleMap.setMyLocationEnabled(true);
}

 signingConfigs {
        debug {
            storeFile file("debug.jks")
        }
    }