SystemTraceRequestBuilder

@RequiresApi(api = 35)
class SystemTraceRequestBuilder : ProfilingRequestBuilder

val listener =
    Consumer<ProfilingResult> { profilingResult ->
        if (profilingResult.errorCode == ProfilingResult.ERROR_NONE) {
            doSomethingWithMyFile(profilingResult.resultFilePath)
        } else {
            doSomethingWithFailure(profilingResult.errorCode, profilingResult.errorMessage)
        }
    }

val cancellationSignal = CancellationSignal()

requestProfiling(
    context,
    SystemTraceRequestBuilder()
        .setBufferSizeKb(1000 /* Requested buffer size in KB */)
        .setDurationMs(60 * 1000 /* Requested profiling duration in millisconds */)
        .setBufferFillPolicy(BufferFillPolicy.RING_BUFFER /* Buffer fill policy */)
        .setTag("tag" /* Caller supplied tag for identification */)
        .setCancellationSignal(cancellationSignal)
        .build(),
    Dispatchers.IO.asExecutor(), // Your choice of executor for the callback to occur on.
    listener
)

// Optionally, wait for something interesting to happen and then stop the profiling to receive
// the result as is.
cancellationSignal.cancel()