android - Android - 谷歌地图 api v2 & android 2.3.7

Question

我将 Google map api v2 用于我的应用程序 abd 在我的设备（android 2.3.7）中运行此应用程序。直接运行到设备时没问题，但是当我将应用程序导出到 *.apk 然后安装在此设备中时，运行应用程序，它只显示白屏.....

Answer 1

You need to create the release certificate.
To create release certificate :
    - After created the release keystore and signed the .APK. you can get the release certificate fingerprint.
    - open Terminal and type the command:
        keytool -list -v -keystore <your_keystore_name> -alias <your_alias_name>
        where:
            <your_keystore_name> is the path and name of the keystore, including the .keystore extension.
            <your_alias_name> is alias that you assigned to the certificate when you created it.

Now to register this release certificate in google console along with the debug certificate. 
And Use that key in manifest file.