override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState)
dependencies // Core (free) components implementation "com.apeaksoft:android-toolkit-ui:1.4.2" apeaksoft android toolkit registration code
// 3️⃣ Send POST request (blocking – called from Gradle task) val request = Request.Builder() .url(LICENSE_ENDPOINT) .post(payload.toRequestBody()) .header("User-Agent", "Apeaksoft-Toolkit/1.4.2") .build() override fun onCreate(savedInstanceState: Bundle
// 5️⃣ Optional: verify signature (HMAC) for tamper‑proofing // The server also sends a `signature` field which is HMAC‑SHA256 // of the payload using a secret known only to the server. val signature = json.getString("signature") if (!verifySignature(payload, signature)) throw LicenseException("License response signature mismatch.") apeaksoft android toolkit registration code
// 4️⃣ Parse JSON response val json = JSONObject(response.body?.string() ?: "") val valid = json.getBoolean("valid") if (!valid) throw LicenseException("License key is invalid or expired.")