当您将 apk 上传到 Play 商店时，Play 商店会创建一个名为App 签名证书"的新 SHA1 密钥.您获得该 SHA1 并保存在您的控制台或 Firebase 帐户中(根据需要).

新 SHA1 将在您的游戏控制台上的已发布管理->应用签名中找到.

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I went through this, and as far as the process goes I did that.

But I when I installed the app from play store I am not able to sign in using the google sign in button.

I have used Firebase for google sign in. When I am clicking the sign in button the option to choose the account is coming but then it is not signing in or doing anything.

So where possibly am I going wrong?

When you upload an apk to the play store then play store creates a new SHA1 key called "App signing certificate". You get that SHA1 and save in your console or firebase account (as you need).

New SHA1 will be found at Released Management->App Sigining on your play console.

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