只需测试一下（带有调试指纹），请在带终端的任何目录中运行以下命令。

Just to test it (with the debug fingerprint), run the following command in any directory with the terminal.

$ keytool -exportcert -alias androiddebugkey -keystore ~/.android/debug.keystore -list -v

然后复制SHA1值并将其粘贴到Firebase控制台中。

Then copy the SHA1 value and paste it into your Firebase console.

请注意，以上内容适用于调试环境，如果要设置发布指纹，则必须创建密钥库，请检出这篇文章以了解如何操作，然后运行相同的命令，而不是〜/ .android /debug.keystore ，您应该输入〜/ YOUR / PA TH / TO / KEYSTORE

Be careful, the above will work for the debug environment, if you want to set up the release fingerprint you will have to create a keystore, check out this post to see how to do it, and then run the same command but instead of ~/.android/debug.keystore you should put ~/YOUR/PATH/TO/KEYSTORE

$ keytool -exportcert -alias androiddebugkey -keystore ~/YOUR/PATH/TO/KEYSTORE -list -v

Android：什么是密钥库文件？什么？是用来做的吗？