在代碼中獲取 keyHash（也是直接上代碼，keyHash 直接打印出來，複製之後在第二步中去設置就好了）

try {
    PackageInfo info = getPackageManager().getPackageInfo(getPackageName(), PackageManager.GET_SIGNATURES);
    for (Signature signature : info.signatures) {
        MessageDigest md = MessageDigest.getInstance("SHA");
        md.update(signature.toByteArray());
        String KeyHash = Base64.encodeToString(md.digest(), Base64.DEFAULT);
        logger.d("onCreate KeyHash : " + KeyHash);
    }
} catch (Exception e) {

}