你可以从Java/Kotlin Activity中打印哈希键。部分代码已弃用，但这里是包含新旧代码的完整解决方案。

private fun printHashKey(context: Context) {
    try {

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
            val packageInfo: PackageInfo = context.packageManager.getPackageInfo(
                context.packageName,
                PackageManager.GET_SIGNING_CERTIFICATES
            )

            for (signature in packageInfo.signingInfo.apkContentsSigners) {
                val md = MessageDigest.getInstance("SHA")
                md.update(signature.toByteArray())
                Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT))
            }
        } else {
            val packageInfo: PackageInfo = context.packageManager.getPackageInfo(
                context.packageName,
                PackageManager.GET_SIGNATURES
            )

            for (signature in packageInfo.signatures) {
                val md = MessageDigest.getInstance("SHA")
                md.update(signature.toByteArray())
                Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT))
            }
        }

    } catch (e: PackageManager.NameNotFoundException) {
        Log.d(TAG, "printHashKey: PackageManager.NameNotFoundException -> $e")
    } catch (e: NoSuchAlgorithmException) {
        Log.d(TAG, "printHashKey: NoSuchAlgorithmException -> $e")
    }
}

Linux

开放式终端:

用于调试构建

keytool -exportcert -alias androiddebugkey -keystore debug.keystore | openssl sha1 -binary | openssl base64

你会发现debug。Keystore来自”。Android "文件夹复制并粘贴在桌面上，并运行上述命令

发布版本

keytool -exportcert -alias <aliasName> -keystore <keystoreFilePath> | openssl sha1 -binary | openssl base64

注意:确保在这两种情况下，它必须要求密码。如果它不要求输入密码，则意味着命令中有错误。

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

import android.os.Bundle;
import android.app.Activity;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.Signature;
import android.text.Editable;
import android.util.Base64;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends Activity {

    Button btn;
    EditText et;
    PackageInfo info;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btn=(Button)findViewById(R.id.button1);
        et=(EditText)findViewById(R.id.editText1);
        btn.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub

                try {
                    info = getPackageManager().getPackageInfo("com.example.id", PackageManager.GET_SIGNATURES);
                    for (Signature signature : info.signatures) {
                        MessageDigest md;
                        md = MessageDigest.getInstance("SHA");
                        md.update(signature.toByteArray());
                        String something = new String(Base64.encode(md.digest(), 0));
                        //String something = new String(Base64.encodeBytes(md.digest()));
                        et.setText("" + something);
                        Log.e("hash key", something);
                    }
                } catch (NameNotFoundException e1) {
                    Log.e("name not found", e1.toString());
                } catch (NoSuchAlgorithmException e) {
                    Log.e("no such an algorithm", e.toString());
                } catch (Exception e) {
                    Log.e("exception", e.toString());
                }
            }
        });
    }



}

您可以从SHA-1密钥获得密钥哈希。 这很简单，你需要得到你的SHA-1(签名APK)密钥从Play Store检查下图。

现在复制SHA-1密钥并在这个网站http://tomeko.net中过去，也检查下面的图像以获得您的密钥哈希。

下载openSSL for windows，你可以在这里找到64位和32位的 解压缩下载的文件 在C盘中创建文件夹名为openSSL 将所有提取的项目复制到openSSL文件夹(bin,include,lib, openSSL .cnf) 获取android调试密钥库，默认位置为

C:\Users\username\.android\ debug.keystore

现在获得命令提示符并粘贴这段代码

keytool -exportcert -alias androiddebugkey -keystore C：\Users\username.android\debug.keystore |“C：\openSSL\bin\openssl” sha1 -binary |“C：\openSSL\bin\openssl” base64

按enter键，你会得到28位的键码

你可以从Java/Kotlin Activity中打印哈希键。部分代码已弃用，但这里是包含新旧代码的完整解决方案。

private fun printHashKey(context: Context) {
    try {

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
            val packageInfo: PackageInfo = context.packageManager.getPackageInfo(
                context.packageName,
                PackageManager.GET_SIGNING_CERTIFICATES
            )

            for (signature in packageInfo.signingInfo.apkContentsSigners) {
                val md = MessageDigest.getInstance("SHA")
                md.update(signature.toByteArray())
                Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT))
            }
        } else {
            val packageInfo: PackageInfo = context.packageManager.getPackageInfo(
                context.packageName,
                PackageManager.GET_SIGNATURES
            )

            for (signature in packageInfo.signatures) {
                val md = MessageDigest.getInstance("SHA")
                md.update(signature.toByteArray())
                Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT))
            }
        }

    } catch (e: PackageManager.NameNotFoundException) {
        Log.d(TAG, "printHashKey: PackageManager.NameNotFoundException -> $e")
    } catch (e: NoSuchAlgorithmException) {
        Log.d(TAG, "printHashKey: NoSuchAlgorithmException -> $e")
    }
}