installDevConsole

One-call installer for the OkHttp adapter.

Getting real DNS/TCP/TLS/wait/download timing phases out of this module requires three coordinated steps: construct a DevConsoleOkHttpEventListenerFactory, set it as the client's eventListenerFactory, and pass that same instance to DevConsoleOkHttpInterceptor. Miss any one of the three and every phase silently reads null forever -- there is no error, just an empty timing bar. This function does all three in one call:

val client = OkHttpClient.Builder()
    .installDevConsole(DevConsole.networkRecorder())
    .build()

If the host already has its own EventListener.Factory it wants notified (an APM/tracing tool, say), pass it as existingEventListenerFactory. DevConsole chains to it as a delegate -- DevConsoleOkHttpEventListenerFactory forwards every callback to it in addition to recording timing phases here -- so installing DevConsole never silently drops a host's own listener. Do this instead of calling .eventListenerFactory(...) on the builder yourself first: OkHttp allows only one eventListenerFactory per client, OkHttpClient.Builder exposes no public getter to read one back, and a second call to .eventListenerFactory(...) after this one would silently replace what this function just installed.

Individual phases are legitimately null even when wired correctly: a pooled connection skips DNS/connect, a plaintext request has no TLS handshake, and a cached response that never touches the network has no phases at all. That is by design, not a sign the installer is missing something.

The manual three-step form documented on DevConsoleOkHttpEventListenerFactory remains available and fully supported for callers who want to manage the interceptor and event listener lifecycles separately.