StackSamplingRequestBuilder


@RequiresApi(api = 35)
public final class StackSamplingRequestBuilder extends ProfilingRequestBuilder


Request builder to create a request for stack sampling from ProfilingManager.

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,  StackSamplingRequestBuilder()  .setBufferSizeKb(1000 /* Requested buffer size in KB */)  .setDurationMs(10 * 1000 /* Requested profiling duration in millisconds */)  .setSamplingFrequencyHz(100 /* Requested sampling frequency */)  .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()

Summary

Public constructors

Public methods

final @NonNull StackSamplingRequestBuilder
setBufferSizeKb(int bufferSizeKb)

Set the buffer size in kilobytes for this profiling request.

final @NonNull StackSamplingRequestBuilder
setDurationMs(int durationMs)

Set the duration in milliseconds for this profiling request.

final @NonNull StackSamplingRequestBuilder
setSamplingFrequencyHz(int samplingFrequencyHz)

Set the cpu sampling frequency.

Inherited methods

From androidx.core.os.ProfilingRequestBuilder
final @NonNull ProfilingRequest

Build the ProfilingRequest object which can be used with requestProfiling to request profiling.

final @NonNull StackSamplingRequestBuilder

Set a CancellationSignal to request cancellation of the requested trace.

final @NonNull StackSamplingRequestBuilder

Add data to help identify the output.

Public constructors

StackSamplingRequestBuilder

Added in 1.15.0
public StackSamplingRequestBuilder()

Public methods

setBufferSizeKb

Added in 1.15.0
public final @NonNull StackSamplingRequestBuilder setBufferSizeKb(int bufferSizeKb)

Set the buffer size in kilobytes for this profiling request.

setDurationMs

Added in 1.15.0
public final @NonNull StackSamplingRequestBuilder setDurationMs(int durationMs)

Set the duration in milliseconds for this profiling request.

setSamplingFrequencyHz

Added in 1.15.0
public final @NonNull StackSamplingRequestBuilder setSamplingFrequencyHz(int samplingFrequencyHz)

Set the cpu sampling frequency.