java - 检查是否从 Google Play 安装了应用程序

Question

我在开发应用程序时添加了 Google Play 规则明确禁止的功能。因此，我希望为那些从 Google Play 安装应用程序而未创建不同的 apk 的用户禁用此特定功能。这意味着我需要根据代码确定应用程序是从 Google Play 安装还是仅通过下载 apk 安装。

有什么办法可以实现吗？

Answer 1

这应该适用于该目的，取自 HockeyAppSDK for Android Github library :

protected static boolean installedFromMarket(WeakReference<? extends Context> weakContext) {
    boolean result = false;

    Context context = weakContext.get();
    if (context != null) {
        try {
            String installer = context.getPackageManager().getInstallerPackageName(context.getPackageName());
            // if installer string is not null it might be installed by market
            if (!TextUtils.isEmpty(installer)) {
                result = true;

                // on Android Nougat and up when installing an app through the package installer (which HockeyApp uses itself), the installer will be
                // "com.google.android.packageinstaller" or "com.android.packageinstaller" which is also not to be considered as a market installation
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N && (TextUtils.equals(installer, INSTALLER_PACKAGE_INSTALLER_NOUGAT) || TextUtils.equals(installer, INSTALLER_PACKAGE_INSTALLER_NOUGAT2))) {
                    result = false;
                }

                // on some devices (Xiaomi) the installer identifier will be "adb", which is not to be considered as a market installation
                if (TextUtils.equals(installer, INSTALLER_ADB)) {
                    result = false;
                }
            }

        } catch (Throwable ignored) {
        }
    }

    return result;
}

但是，我建议为此构建两个不同的应用程序。如果您在 Google Play 中加入了禁止代码，尽管此方法不会帮助执行它，但它会成为您的字节码的一部分，并且很可能会被 Google 禁止。通过创建另一种风格将其从您的代码中删除会更加清晰。