Android获取App第一次安装时间

    private fun getTime():Long{
        val packageName = mContext.packageName
        try {
            val packageInfo = mContext.packageManager.getPackageInfo(packageName, 0)
            val installTime = packageInfo.firstInstallTime
            return installTime
        } catch (e: PackageManager.NameNotFoundException) {
            e.printStackTrace()
        }
        return 0
    }