public
class
EventLog
extends Object
| java.lang.Object | |
| ↳ | android.util.EventLog |
Access to the system diagnostic event record. System diagnostic events are used to record certain system-level events (such as garbage collection, activity manager state, system watchdogs, and other low level activity), which may be automatically collected and analyzed during system development.
This is not the main "logcat" debugging log (Log)!
These diagnostic events are for system integrators, not application authors.
Events use integer tag codes corresponding to /system/etc/event-log-tags. They carry a payload of one or more int, long, or String values. The event-log-tags file defines the payload contents for each type code.
Nested classes | |
|---|---|
class |
EventLog.Event
A previously logged event read from the logs. |
Public methods | |
|---|---|
static
int
|
getTagCode(String name)
Get the event type tag code associated with an event name. |
static
String
|
getTagName(int tag)
Get the name associated with an event type tag code. |
static
void
|
readEvents(int[] tags, Collection<EventLog.Event> output)
Read events from the log, filtered by type. |
static
int
|
writeEvent(int tag, String str)
Record an event log message. |
static
int
|
writeEvent(int tag, Object... list)
Record an event log message. |
static
int
|
writeEvent(int tag, int value)
Record an event log message. |
static
int
|
writeEvent(int tag, float value)
Record an event log message. |
static
int
|
writeEvent(int tag, long value)
Record an event log message. |
Inherited methods | |
|---|---|
 From
class
java.lang.Object
| |
int getTagCode (String name)
Get the event type tag code associated with an event name.
| Parameters | |
|---|---|
name |
String:
of event to look up |
| Returns | |
|---|---|
int |
the tag code, or -1 if no tag has that name |
String getTagName (int tag)
Get the name associated with an event type tag code.
| Parameters | |
|---|---|
tag |
int:
code to look up |
| Returns | |
|---|---|
String |
the name of the tag, or null if no tag has that number |
Developers
void readEvents (int[] tags,
Collection<EventLog.Event> output)
Read events from the log, filtered by type.
| Parameters | |
|---|---|
tags |
int:
to search for |
output |
Collection:
container to add events into |
| Throws | |
|---|---|
IOException |
if something goes wrong reading events |
int writeEvent (int tag,
String str)
Record an event log message.
| Parameters | |
|---|---|
tag |
int:
The event type tag code |
str |
String:
A value to log |
| Returns | |
|---|---|
int |
The number of bytes written |
int writeEvent (int tag,
Object... list)
Record an event log message.
| Parameters | |
|---|---|
tag |
int:
The event type tag code |
list |
Object:
A list of values to log |
| Returns | |
|---|---|
int |
The number of bytes written |
int writeEvent (int tag,
int value)
Record an event log message.
| Parameters | |
|---|---|
tag |
int:
The event type tag code |
value |
int:
A value to log |
| Returns | |
|---|---|
int |
The number of bytes written |
int writeEvent (int tag,
float value)
Record an event log message.
| Parameters | |
|---|---|
tag |
int:
The event type tag code |
value |
float:
A value to log |
| Returns | |
|---|---|
int |
The number of bytes written |
int writeEvent (int tag,
long value)
Record an event log message.
| Parameters | |
|---|---|
tag |
int:
The event type tag code |
value |
long:
A value to log |
| Returns | |
|---|---|
int |
The number of bytes written |