Added in API level 28

TracingConfig

---

Kotlin |Java

open class TracingConfig

kotlin.Any
↳	android.webkit.TracingConfig

Holds tracing configuration information and predefined settings.

Summary

Nested classes
open	Builder Builder used to create TracingConfig objects.

Constants
static Int	CATEGORIES_ALL Predefined set of categories, includes all categories enabled by default in chromium.
static Int	CATEGORIES_ANDROID_WEBVIEW Predefined set of categories typically useful for analyzing WebViews.
static Int	CATEGORIES_FRAME_VIEWER Predefined set of categories for studying difficult rendering performance problems.
static Int	CATEGORIES_INPUT_LATENCY Predefined set of categories for analyzing input latency issues.
static Int	CATEGORIES_JAVASCRIPT_AND_RENDERING Predefined set of categories for analyzing javascript and rendering issues.
static Int	CATEGORIES_NONE Indicates that there are no predefined categories.
static Int	CATEGORIES_RENDERING Predefined set of categories for analyzing rendering issues.
static Int	CATEGORIES_WEB_DEVELOPER Predefined set of categories typically useful for web developers.
static Int	RECORD_CONTINUOUSLY Record trace events continuously using an internal ring buffer.
static Int	RECORD_UNTIL_FULL Record trace events until the internal tracing buffer is full.

Public methods
open MutableList<String!>	getCustomIncludedCategories() Returns the list of included custom category patterns for this configuration.
open Int	getPredefinedCategories() Returns a bitmask of the predefined category sets of this configuration.
open Int	getTracingMode() Returns the tracing mode of this configuration.

Constants

CATEGORIES_ALL

Added in API level 28

static val CATEGORIES_ALL: Int

Predefined set of categories, includes all categories enabled by default in chromium. Use with caution: this setting may produce large trace output.

Value: 1

CATEGORIES_ANDROID_WEBVIEW

Added in API level 28

static val CATEGORIES_ANDROID_WEBVIEW: Int

Predefined set of categories typically useful for analyzing WebViews. Typically includes "android_webview" and "Java" categories.

Value: 2

CATEGORIES_FRAME_VIEWER

Added in API level 28

static val CATEGORIES_FRAME_VIEWER: Int

Predefined set of categories for studying difficult rendering performance problems. Typically includes "blink", "compositor", "gpu", "renderer.scheduler", "v8" and some other compositor categories which are disabled by default.

Value: 64

CATEGORIES_INPUT_LATENCY

Added in API level 28

static val CATEGORIES_INPUT_LATENCY: Int

Predefined set of categories for analyzing input latency issues. Typically includes "input", "renderer.scheduler" categories.

Value: 8

CATEGORIES_JAVASCRIPT_AND_RENDERING

Added in API level 28

static val CATEGORIES_JAVASCRIPT_AND_RENDERING: Int

Predefined set of categories for analyzing javascript and rendering issues. Typically includes "blink", "compositor", "gpu", "renderer.scheduler" and "v8" categories.

Value: 32

CATEGORIES_NONE

Added in API level 28

static val CATEGORIES_NONE: Int

Indicates that there are no predefined categories.

Value: 0

CATEGORIES_RENDERING

Added in API level 28

static val CATEGORIES_RENDERING: Int

Predefined set of categories for analyzing rendering issues. Typically includes "blink", "compositor" and "gpu" categories.

Value: 16

CATEGORIES_WEB_DEVELOPER

Added in API level 28

static val CATEGORIES_WEB_DEVELOPER: Int

Predefined set of categories typically useful for web developers. Typically includes "blink", "compositor", "renderer.scheduler" and "v8" categories.

Value: 4

RECORD_CONTINUOUSLY

Added in API level 28

static val RECORD_CONTINUOUSLY: Int

Record trace events continuously using an internal ring buffer. Default tracing mode. Overwrites old events if they exceed buffer capacity. Uses less memory than the RECORD_UNTIL_FULL mode. Depending on the implementation typically allows up to 64k events to be stored.

Value: 1

RECORD_UNTIL_FULL

Added in API level 28

static val RECORD_UNTIL_FULL: Int

Record trace events until the internal tracing buffer is full. Typically the buffer memory usage is larger than RECORD_CONTINUOUSLY. Depending on the implementation typically allows up to 256k events to be stored.

Value: 0

Public methods

getCustomIncludedCategories

Added in API level 28

open fun getCustomIncludedCategories(): MutableList<String!>

Returns the list of included custom category patterns for this configuration.

Return
MutableList<String!>	Empty list if no custom category patterns are specified. This value cannot be null.

getPredefinedCategories

Added in API level 28

open fun getPredefinedCategories(): Int

Returns a bitmask of the predefined category sets of this configuration.

Return

Int

Bitmask of predefined category sets. Value is either 0 or a combination of android.webkit.TracingConfig#CATEGORIES_NONE, android.webkit.TracingConfig#CATEGORIES_ALL, android.webkit.TracingConfig#CATEGORIES_ANDROID_WEBVIEW, android.webkit.TracingConfig#CATEGORIES_WEB_DEVELOPER, android.webkit.TracingConfig#CATEGORIES_INPUT_LATENCY, android.webkit.TracingConfig#CATEGORIES_RENDERING, android.webkit.TracingConfig#CATEGORIES_JAVASCRIPT_AND_RENDERING, and android.webkit.TracingConfig#CATEGORIES_FRAME_VIEWER

getTracingMode

Added in API level 28

open fun getTracingMode(): Int

Returns the tracing mode of this configuration.

Return
Int	The tracing mode of this configuration. Value is android.webkit.TracingConfig#RECORD_UNTIL_FULL, or android.webkit.TracingConfig#RECORD_CONTINUOUSLY