Vibrator
public
abstract
class
Vibrator
extends Object
java.lang.Object | |
↳ | android.os.Vibrator |
Class that operates the vibrator on the device.
If your process exits, any vibration you started will stop.
Summary
Constants | |
---|---|
int |
VIBRATION_EFFECT_SUPPORT_NO
Vibration effect support: unsupported This effect is not natively supported by the underlying hardware, although the system may still play a fallback vibration. |
int |
VIBRATION_EFFECT_SUPPORT_UNKNOWN
Vibration effect support: unknown The hardware doesn't report its supported effects, so we can't determine whether the effect is supported or not. |
int |
VIBRATION_EFFECT_SUPPORT_YES
Vibration effect support: supported This effect is supported by the underlying hardware. |
Public methods | |
---|---|
final
int
|
areAllEffectsSupported(int... effectIds)
Query whether the vibrator supports all the given effects. |
final
boolean
|
areAllPrimitivesSupported(int... primitiveIds)
Query whether the vibrator supports all of the given primitives. |
int[]
|
areEffectsSupported(int... effectIds)
Query whether the vibrator natively supports the given effects. |
boolean[]
|
arePrimitivesSupported(int... primitiveIds)
Query whether the vibrator supports the given primitives. |
abstract
void
|
cancel()
Turn the vibrator off. |
int
|
getId()
Return the ID of this vibrator. |
int[]
|
getPrimitiveDurations(int... primitiveIds)
Query the estimated durations of the given primitives. |
float
|
getQFactor()
Gets the Q factor of the vibrator. |
float
|
getResonantFrequency()
Gets the resonant frequency of the vibrator, if applicable. |
abstract
boolean
|
hasAmplitudeControl()
Check whether the vibrator has amplitude control. |
abstract
boolean
|
hasVibrator()
Check whether the hardware has a vibrator. |
void
|
vibrate(long milliseconds)
This method was deprecated
in API level 26.
Use |
void
|
vibrate(VibrationEffect vibe, VibrationAttributes attributes)
Vibrate with a given effect. |
void
|
vibrate(long[] pattern, int repeat)
This method was deprecated
in API level 26.
Use |
void
|
vibrate(VibrationEffect vibe, AudioAttributes attributes)
This method was deprecated
in API level 33.
Use |
void
|
vibrate(long milliseconds, AudioAttributes attributes)
This method was deprecated
in API level 26.
Use |
void
|
vibrate(VibrationEffect vibe)
Vibrate with a given effect. |
void
|
vibrate(long[] pattern, int repeat, AudioAttributes attributes)
This method was deprecated
in API level 26.
Use |
Inherited methods | |
---|---|
Constants
VIBRATION_EFFECT_SUPPORT_NO
public static final int VIBRATION_EFFECT_SUPPORT_NO
Vibration effect support: unsupported
This effect is not natively supported by the underlying hardware, although the system may still play a fallback vibration.
Constant Value: 2 (0x00000002)
VIBRATION_EFFECT_SUPPORT_UNKNOWN
public static final int VIBRATION_EFFECT_SUPPORT_UNKNOWN
Vibration effect support: unknown
The hardware doesn't report its supported effects, so we can't determine whether the effect is supported or not.
Constant Value: 0 (0x00000000)
VIBRATION_EFFECT_SUPPORT_YES
public static final int VIBRATION_EFFECT_SUPPORT_YES
Vibration effect support: supported
This effect is supported by the underlying hardware.
Constant Value: 1 (0x00000001)
Public methods
areAllEffectsSupported
public final int areAllEffectsSupported (int... effectIds)
Query whether the vibrator supports all the given effects. If no argument is provided this
method will always return VIBRATION_EFFECT_SUPPORT_YES
.
If an effect is not supported, the system may still automatically fall back to a simpler vibration instead, which is not optimised for the specific device, however vibration isn't guaranteed in this case.
If the result is VIBRATION_EFFECT_SUPPORT_YES
, all effects in the query are
supported by the hardware.
If the result is VIBRATION_EFFECT_SUPPORT_NO
, at least one of the effects in the
query is not supported, and using them may fall back to an un-optimized vibration or no
vibration.
If the result is VIBRATION_EFFECT_SUPPORT_UNKNOWN
, the system doesn't know
whether all the effects are supported. It may support any or all of the queried effects,
but there's no way to programmatically know whether a vibrate(VibrationEffect)
call will successfully
cause a vibration. It's guaranteed, however, that none of the queried effects are
definitively unsupported by the hardware.
Use areEffectsSupported(int)
to get individual results for each effect.
Parameters | |
---|---|
effectIds |
int : Which effects to query for.
This value cannot be null .
Value is VibrationEffect.EFFECT_TICK , VibrationEffect.EFFECT_CLICK , VibrationEffect.EFFECT_HEAVY_CLICK , or VibrationEffect.EFFECT_DOUBLE_CLICK |
Returns | |
---|---|
int |
Whether all specified effects are natively supported by the device. Empty query
defaults to VIBRATION_EFFECT_SUPPORT_YES .
Value is VIBRATION_EFFECT_SUPPORT_UNKNOWN , VIBRATION_EFFECT_SUPPORT_YES , or VIBRATION_EFFECT_SUPPORT_NO |
areAllPrimitivesSupported
public final boolean areAllPrimitivesSupported (int... primitiveIds)
Query whether the vibrator supports all of the given primitives. If no argument is provided
this method will always return true
.
If a primitive is not supported by the device, then no vibration will occur if it is played.
Use arePrimitivesSupported(int)
to get individual results for each primitive.
Parameters | |
---|---|
primitiveIds |
int : Which primitives to query for.
This value cannot be null .
Value is VibrationEffect.Composition.PRIMITIVE_CLICK , VibrationEffect.Composition.PRIMITIVE_THUD , VibrationEffect.Composition.PRIMITIVE_SPIN , VibrationEffect.Composition.PRIMITIVE_QUICK_RISE , VibrationEffect.Composition.PRIMITIVE_SLOW_RISE , VibrationEffect.Composition.PRIMITIVE_QUICK_FALL , VibrationEffect.Composition.PRIMITIVE_TICK , or VibrationEffect.Composition.PRIMITIVE_LOW_TICK |
Returns | |
---|---|
boolean |
Whether all specified primitives are supported. Empty query defaults to true . |
areEffectsSupported
public int[] areEffectsSupported (int... effectIds)
Query whether the vibrator natively supports the given effects.
If an effect is not supported, the system may still automatically fall back to playing a simpler vibration instead, which is not optimised for the specific device. This includes the unknown case, which can't be determined in advance, that will dynamically attempt to fall back if the optimised effect fails to play.
The returned array will be the same length as the query array and the value at a given
index will contain VIBRATION_EFFECT_SUPPORT_YES
if the effect at that same index
in the querying array is supported, VIBRATION_EFFECT_SUPPORT_NO
if it isn't
supported, or VIBRATION_EFFECT_SUPPORT_UNKNOWN
if the system can't determine whether
it's supported or not, as some hardware doesn't report its effect capabilities.
Use areAllEffectsSupported(int)
to get a single combined result,
or for convenience when querying exactly one effect.
Parameters | |
---|---|
effectIds |
int : Which effects to query for.
This value cannot be null .
Value is VibrationEffect.EFFECT_TICK , VibrationEffect.EFFECT_CLICK , VibrationEffect.EFFECT_HEAVY_CLICK , or VibrationEffect.EFFECT_DOUBLE_CLICK |
Returns | |
---|---|
int[] |
An array containing the systems current knowledge about whether the given effects
are natively supported by the device, or not.
This value cannot be null .
Value is VIBRATION_EFFECT_SUPPORT_UNKNOWN , VIBRATION_EFFECT_SUPPORT_YES , or VIBRATION_EFFECT_SUPPORT_NO |
arePrimitivesSupported
public boolean[] arePrimitivesSupported (int... primitiveIds)
Query whether the vibrator supports the given primitives. The returned array will be the same length as the query array and the value at a given index will contain whether the effect at that same index in the querying array is supported or not.
If a primitive is not supported by the device, then no vibration will occur if it is played.
Use areAllPrimitivesSupported(int)
to get a single combined result,
or for convenience when querying exactly one primitive.
Parameters | |
---|---|
primitiveIds |
int : Which primitives to query for.
This value cannot be null .
Value is VibrationEffect.Composition.PRIMITIVE_CLICK , VibrationEffect.Composition.PRIMITIVE_THUD , VibrationEffect.Composition.PRIMITIVE_SPIN , VibrationEffect.Composition.PRIMITIVE_QUICK_RISE , VibrationEffect.Composition.PRIMITIVE_SLOW_RISE , VibrationEffect.Composition.PRIMITIVE_QUICK_FALL , VibrationEffect.Composition.PRIMITIVE_TICK , or VibrationEffect.Composition.PRIMITIVE_LOW_TICK |
Returns | |
---|---|
boolean[] |
Whether the primitives are supported.
This value cannot be null . |
cancel
public abstract void cancel ()
Turn the vibrator off.
Requires Manifest.permission.VIBRATE
getId
public int getId ()
Return the ID of this vibrator.
Returns | |
---|---|
int |
A non-negative integer representing the id of the vibrator controlled by this service, or -1 this service is not attached to any physical vibrator. |
getPrimitiveDurations
public int[] getPrimitiveDurations (int... primitiveIds)
Query the estimated durations of the given primitives.
The returned array will be the same length as the query array and the value at a given index will contain the duration in milliseconds of the effect at the same index in the querying array.
The duration will be positive for primitives that are supported and zero for the
unsupported ones, in correspondence with arePrimitivesSupported(int)
.
Parameters | |
---|---|
primitiveIds |
int : Which primitives to query for.
This value cannot be null .
Value is VibrationEffect.Composition.PRIMITIVE_CLICK , VibrationEffect.Composition.PRIMITIVE_THUD , VibrationEffect.Composition.PRIMITIVE_SPIN , VibrationEffect.Composition.PRIMITIVE_QUICK_RISE , VibrationEffect.Composition.PRIMITIVE_SLOW_RISE , VibrationEffect.Composition.PRIMITIVE_QUICK_FALL , VibrationEffect.Composition.PRIMITIVE_TICK , or VibrationEffect.Composition.PRIMITIVE_LOW_TICK |
Returns | |
---|---|
int[] |
The duration of each primitive, with zeroes for primitives that are not supported.
This value cannot be null . |
getQFactor
public float getQFactor ()
Gets the Q factor of the vibrator.
Returns | |
---|---|
float |
the Q factor of the vibrator, or NaN if it's unknown, not
applicable, or if this vibrator is a composite of multiple physical devices with different
Q factors. |
getResonantFrequency
public float getResonantFrequency ()
Gets the resonant frequency of the vibrator, if applicable.
Returns | |
---|---|
float |
the resonant frequency of the vibrator, or NaN if it's unknown, not
applicable, or if this vibrator is a composite of multiple physical devices with different
frequencies. |
hasAmplitudeControl
public abstract boolean hasAmplitudeControl ()
Check whether the vibrator has amplitude control.
Returns | |
---|---|
boolean |
True if the hardware can control the amplitude of the vibrations, otherwise false. |
hasVibrator
public abstract boolean hasVibrator ()
Check whether the hardware has a vibrator.
Returns | |
---|---|
boolean |
True if the hardware has a vibrator, else false. |
vibrate
public void vibrate (long milliseconds)
This method was deprecated
in API level 26.
Use vibrate(android.os.VibrationEffect)
instead.
Vibrate constantly for the specified period of time.
The app should be in the foreground for the vibration to happen.
Requires
Manifest.permission.VIBRATE
Parameters | |
---|---|
milliseconds |
long : The number of milliseconds to vibrate. |
vibrate
public void vibrate (VibrationEffect vibe, VibrationAttributes attributes)
Vibrate with a given effect.
The app should be in the foreground for the vibration to happen. Background apps should specify a ringtone, notification or alarm usage in order to vibrate.
Requires
Manifest.permission.VIBRATE
Parameters | |
---|---|
vibe |
VibrationEffect : VibrationEffect describing the vibration to be performed.
This value cannot be null . |
attributes |
VibrationAttributes : VibrationAttributes corresponding to the vibration. For example,
specify VibrationAttributes#USAGE_ALARM for alarm vibrations or
VibrationAttributes#USAGE_RINGTONE for vibrations associated with
incoming calls.
This value cannot be null . |
vibrate
public void vibrate (long[] pattern, int repeat)
This method was deprecated
in API level 26.
Use vibrate(android.os.VibrationEffect)
instead.
Vibrate with a given pattern.
Pass in an array of ints that are the durations for which to turn on or off the vibrator in milliseconds. The first value indicates the number of milliseconds to wait before turning the vibrator on. The next value indicates the number of milliseconds for which to keep the vibrator on before turning it off. Subsequent values alternate between durations in milliseconds to turn the vibrator off or to turn the vibrator on.
To cause the pattern to repeat, pass the index into the pattern array at which to start the repeat, or -1 to disable repeating.
The app should be in the foreground for the vibration to happen.
Requires
Manifest.permission.VIBRATE
Parameters | |
---|---|
pattern |
long : an array of longs of times for which to turn the vibrator on or off. |
repeat |
int : the index into pattern at which to repeat, or -1 if
you don't want to repeat. |
vibrate
public void vibrate (VibrationEffect vibe, AudioAttributes attributes)
This method was deprecated
in API level 33.
Use vibrate(android.os.VibrationEffect, android.os.VibrationAttributes)
instead.
Vibrate with a given effect.
The app should be in the foreground for the vibration to happen. Background apps should specify a ringtone, notification or alarm usage in order to vibrate.
Requires
Manifest.permission.VIBRATE
Parameters | |
---|---|
vibe |
VibrationEffect : VibrationEffect describing the vibration to be performed. |
attributes |
AudioAttributes : AudioAttributes corresponding to the vibration. For example,
specify AudioAttributes#USAGE_ALARM for alarm vibrations or
AudioAttributes#USAGE_NOTIFICATION_RINGTONE for
vibrations associated with incoming calls. |
vibrate
public void vibrate (long milliseconds, AudioAttributes attributes)
This method was deprecated
in API level 26.
Use vibrate(android.os.VibrationEffect, android.os.VibrationAttributes)
instead.
Vibrate constantly for the specified period of time.
The app should be in the foreground for the vibration to happen. Background apps should specify a ringtone, notification or alarm usage in order to vibrate.
Requires
Manifest.permission.VIBRATE
Parameters | |
---|---|
milliseconds |
long : The number of milliseconds to vibrate. |
attributes |
AudioAttributes : AudioAttributes corresponding to the vibration. For example,
specify AudioAttributes#USAGE_ALARM for alarm vibrations or
AudioAttributes#USAGE_NOTIFICATION_RINGTONE for
vibrations associated with incoming calls. |
vibrate
public void vibrate (VibrationEffect vibe)
Vibrate with a given effect.
The app should be in the foreground for the vibration to happen.
Requires
Manifest.permission.VIBRATE
Parameters | |
---|---|
vibe |
VibrationEffect : VibrationEffect describing the vibration to be performed. |
vibrate
public void vibrate (long[] pattern, int repeat, AudioAttributes attributes)
This method was deprecated
in API level 26.
Use vibrate(android.os.VibrationEffect, android.os.VibrationAttributes)
instead.
Vibrate with a given pattern.
Pass in an array of ints that are the durations for which to turn on or off the vibrator in milliseconds. The first value indicates the number of milliseconds to wait before turning the vibrator on. The next value indicates the number of milliseconds for which to keep the vibrator on before turning it off. Subsequent values alternate between durations in milliseconds to turn the vibrator off or to turn the vibrator on.
To cause the pattern to repeat, pass the index into the pattern array at which to start the repeat, or -1 to disable repeating.
The app should be in the foreground for the vibration to happen. Background apps should specify a ringtone, notification or alarm usage in order to vibrate.
Requires
Manifest.permission.VIBRATE
Parameters | |
---|---|
pattern |
long : an array of longs of times for which to turn the vibrator on or off. |
repeat |
int : the index into pattern at which to repeat, or -1 if
you don't want to repeat. |
attributes |
AudioAttributes : AudioAttributes corresponding to the vibration. For example,
specify AudioAttributes#USAGE_ALARM for alarm vibrations or
AudioAttributes#USAGE_NOTIFICATION_RINGTONE for
vibrations associated with incoming calls. |