map 突然在我的应用程序中停止工作，只显示一个空白屏幕，左下角有 google Logo 。

我得到的错误是:

I/Google Maps Android API﹕ Google Play services package version: 4452038
I/ActivityManager﹕ Start proc com.google.android.gms.maps for service com.google.android.gms/.maps.auth.ApiTokenService: 
I/Google Maps Android API﹕ Google Play services client version: 4452000
I/Google Maps Android API﹕ Failed to contact Google servers. Another attempt will be made when connectivity is established.
E/Google Maps Android API﹕ Failed to load map. Error contacting Google servers. This is probably an authentication issue (but could be due to network errors).

我认为唯一可能的是身份验证错误。因为我已经尝试过不同的网络并且没有遇到麻烦。

问题可能出在 build.gradle 文件上吗？因为问题是在我在那里乱搞之后开始的，我想。

这是我的构建 gradle:

apply plugin: 'android'

android {
compileSdkVersion 19
buildToolsVersion "19.0.3"

def versionPropsFile = file('version.properties')

if (versionPropsFile.canRead()) {
    def Properties versionProps = new Properties()

    versionProps.load(new FileInputStream(versionPropsFile))

    def value = 0

    def runTasks = gradle.startParameter.taskNames
    if ('assemble' in runTasks || 'assembleRelease' in runTasks || 'aR' in runTasks) {
        value = 1;
    }

    def versionMajor = 1
    def versionMinor = 3
    def versionPatch = versionProps['VERSION_PATCH'].toInteger() + value
    def versionBuild = versionProps['VERSION_BUILD'].toInteger() + 1
    def version_Code = versionProps['VERSION_CODE'].toInteger() + value

    versionProps['VERSION_PATCH'] = versionPatch.toString()
    versionProps['VERSION_BUILD'] = versionBuild.toString()
    versionProps['VERSION_CODE'] = version_Code.toString()

    versionProps.store(versionPropsFile.newWriter(), null)

    defaultConfig {
        versionCode version_Code
        versionName "${versionMajor}.${versionMinor}.${versionPatch} (${versionBuild})"
        minSdkVersion 14
        targetSdkVersion 19
    }
} else {
    throw new GradleException("Could not read version.properties!")
}

signingConfigs {
    debug {
        storeFile file("xxx.keystore")
        storePassword "xxxx"
        keyAlias "debug"
        keyPassword "xxxx"
    }
    releaseKey {
        storeFile file("xxx.keystore")
        storePassword "xxxx"
        keyAlias "release"
        keyPassword "xxxx"
    }
}

buildTypes {
    debug {
        debuggable true
        packageNameSuffix ".debug"
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
        signingConfig signingConfigs.debug
    }

    release {
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
        signingConfig signingConfigs.releaseKey
    }
}

lintOptions {
    abortOnError false
}
}

dependencies {
    compile project(':nineOldAndroids')
    compile project(':expListViewLib')
    compile project(':datetimepickerlibrary')
    compile project(':volley')
    compile 'com.android.support:support-v4:+'
    compile 'com.google.android.gms:play-services:+'
    compile files('libs/aws-android-sdk-1.7.1.1.jar')
    compile files('libs/disklrucache-2.0.1.jar')
}

list 如下所示:

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

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

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

<uses-permission android:name="com.example.app.permission.MAPS_RECEIVE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<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_NETWORK_STATE"/>
<uses-permission android:name="android.permission.VIBRATE" />

<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.maps.v2.API_KEY" android:value="@string/config_com.google.android.maps.v2.api_key" />
</application>
</manifest>

我检查了很多次，packageName、sha1指纹和API都是正确的。所有这些都是，但我仍然得到一张空 map 。

我见过类似的问题，但我没有找到任何解决方案。它只是拒绝为我工作。

有什么建议吗？

编辑: 我尝试过的任何东西都不起作用。但我确实发现了一个似乎有同样问题的人的类似问题:Google Maps Android API Authorization failure - has this service changed in the last few months?

最佳答案

我遇到了完全相同的问题，但解决方案一点也不明显。检查您是否没有更改 DefaultSSLSocketFactory:

HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());

删除此行并仅为所需的连接设置套接字工厂使我的 map 工作。

关于android - 谷歌地图突然不能用了，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/23805769/