VibratorEnvelopeEffectInfo
public
final
class
VibratorEnvelopeEffectInfo
extends Object
implements
Parcelable
java.lang.Object | |
↳ | android.os.vibrator.VibratorEnvelopeEffectInfo |
Provides information about the vibrator hardware capabilities and limitations regarding waveform envelope effects. This includes:
- Maximum number of control points supported.
- Minimum and maximum duration for individual segments.
- Maximum total duration for an envelope effect.
This information can be used to help construct waveform envelope effects with
VibrationEffect.WaveformEnvelopeBuilder
. When designing these effects, it is also
recommended to check the VibratorFrequencyProfile
for information about the supported
frequency range and the vibrator's output response.
Summary
Inherited constants |
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Fields | |
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public
static
final
Creator<VibratorEnvelopeEffectInfo> |
CREATOR
|
Public methods | |
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int
|
describeContents()
Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. |
boolean
|
equals(Object o)
Indicates whether some other object is "equal to" this one. |
long
|
getMaxControlPointDurationMillis()
Retrieves the maximum duration supported between two control points within an envelope effect, in milliseconds. |
long
|
getMaxDurationMillis()
Retrieves the maximum duration supported for an envelope effect, in milliseconds. |
int
|
getMaxSize()
Retrieves the maximum number of control points supported for an envelope effect. |
long
|
getMinControlPointDurationMillis()
Retrieves the minimum duration supported between two control points within an envelope effect, in milliseconds. |
int
|
hashCode()
Returns a hash code value for the object. |
String
|
toString()
Returns a string representation of the object. |
void
|
writeToParcel(Parcel dest, int flags)
Flatten this object in to a Parcel. |
Inherited methods | |
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Fields
Public methods
describeContents
public int describeContents ()
Describe the kinds of special objects contained in this Parcelable
instance's marshaled representation. For example, if the object will
include a file descriptor in the output of writeToParcel(android.os.Parcel, int)
,
the return value of this method must include the
CONTENTS_FILE_DESCRIPTOR
bit.
Returns | |
---|---|
int |
a bitmask indicating the set of special object types marshaled
by this Parcelable object instance.
Value is either 0 or CONTENTS_FILE_DESCRIPTOR |
equals
public boolean equals (Object o)
Indicates whether some other object is "equal to" this one.
The equals
method implements an equivalence relation
on non-null object references:
- It is reflexive: for any non-null reference value
x
,x.equals(x)
should returntrue
. - It is symmetric: for any non-null reference values
x
andy
,x.equals(y)
should returntrue
if and only ify.equals(x)
returnstrue
. - It is transitive: for any non-null reference values
x
,y
, andz
, ifx.equals(y)
returnstrue
andy.equals(z)
returnstrue
, thenx.equals(z)
should returntrue
. - It is consistent: for any non-null reference values
x
andy
, multiple invocations ofx.equals(y)
consistently returntrue
or consistently returnfalse
, provided no information used inequals
comparisons on the objects is modified. - For any non-null reference value
x
,x.equals(null)
should returnfalse
.
An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.
Parameters | |
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o |
Object : the reference object with which to compare. |
Returns | |
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boolean |
true if this object is the same as the obj
argument; false otherwise. |
getMaxControlPointDurationMillis
public long getMaxControlPointDurationMillis ()
Retrieves the maximum duration supported between two control points within an envelope effect, in milliseconds.
If the device supports envelope effects
(check ERROR(/android.os.VibratorInfo#areEnvelopeEffectsSupported)
), this value will be
positive. Devices with envelope effects capabilities guarantee support for durations up to
at least 1 second. If the device does not support envelope effects, this method
will return 0.
Returns | |
---|---|
long |
the maximum allowed duration between two control points in an envelope effect, or 0 if envelope effects are not supported. |
getMaxDurationMillis
public long getMaxDurationMillis ()
Retrieves the maximum duration supported for an envelope effect, in milliseconds.
If the device supports envelope effects
(check ERROR(/android.os.VibratorInfo#areEnvelopeEffectsSupported)
), this value will be
positive. Devices with envelope effects capabilities guarantees a maximum duration
equivalent to the product of getMaxSize()
and
getMaxControlPointDurationMillis()
. If the device does not support
envelope effects, this method will return 0.
Returns | |
---|---|
long |
The maximum duration (in milliseconds) allowed for an envelope effect, or 0 if envelope effects are not supported. |
getMaxSize
public int getMaxSize ()
Retrieves the maximum number of control points supported for an envelope effect.
If the device supports envelope effects
(check ERROR(/android.os.VibratorInfo#areEnvelopeEffectsSupported)
), this value will be
positive. Devices with envelope effects capabilities guarantee support for a minimum of
16 control points. If the device does not support envelope effects, this method will
return 0.
Returns | |
---|---|
int |
the maximum number of control points allowed for an envelope effect, or 0 if envelope effects are not supported. |
getMinControlPointDurationMillis
public long getMinControlPointDurationMillis ()
Retrieves the minimum duration supported between two control points within an envelope effect, in milliseconds.
If the device supports envelope effects
(check ERROR(/android.os.VibratorInfo#areEnvelopeEffectsSupported)
), this value will be
positive. Devices with envelope effects capabilities guarantee support for durations down
to at least 20 milliseconds. If the device does not support envelope effects,
this method will return 0.
Returns | |
---|---|
long |
the minimum allowed duration between two control points in an envelope effect, or 0 if envelope effects are not supported. |
hashCode
public int hashCode ()
Returns a hash code value for the object. This method is
supported for the benefit of hash tables such as those provided by
HashMap
.
The general contract of hashCode
is:
- Whenever it is invoked on the same object more than once during
an execution of a Java application, the
hashCode
method must consistently return the same integer, provided no information used inequals
comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. - If two objects are equal according to the
equals
method, then calling thehashCode
method on each of the two objects must produce the same integer result. - It is not required that if two objects are unequal
according to the
equals
method, then calling thehashCode
method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.
Returns | |
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int |
a hash code value for this object. |
toString
public String toString ()
Returns a string representation of the object.
Returns | |
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String |
a string representation of the object. |
writeToParcel
public void writeToParcel (Parcel dest, int flags)
Flatten this object in to a Parcel.
Parameters | |
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dest |
Parcel : This value cannot be null . |
flags |
int : Additional flags about how the object should be written.
May be 0 or Parcelable.PARCELABLE_WRITE_RETURN_VALUE .
Value is either 0 or a combination of Parcelable.PARCELABLE_WRITE_RETURN_VALUE , and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES |