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AssistStructure

public class AssistStructure
extends Object implements Parcelable

java.lang.Object
↳	android.app.assist.AssistStructure

This API automatically creates assist data from the platform's implementation of assist and autofill.

The structure is used for assist purposes when created by Activity.onProvideAssistData(Bundle), View#onProvideStructure(ViewStructure), or View#onProvideVirtualStructure(ViewStructure).

The structure is also used for autofill purposes when created by View#onProvideAutofillStructure(ViewStructure, int), or View#onProvideAutofillVirtualStructure(ViewStructure, int).

For performance reasons, some properties of the assist data might only be available for assist or autofill purposes. In those cases, a property's availability will be documented in its javadoc.

To learn about using Autofill in your app, read the Autofill Framework guides.

Summary

Nested classes
`class`	`AssistStructure.ViewNode` Describes a single view in the assist data.
`class`	`AssistStructure.WindowNode` Describes a window in the assist data.

Inherited constants

From interface android.os.Parcelable

`int`	`CONTENTS_FILE_DESCRIPTOR` Descriptor bit used with `describeContents()`: indicates that the Parcelable object's flattened representation includes a file descriptor.
`int`	`PARCELABLE_WRITE_RETURN_VALUE` Flag for use with `writeToParcel(Parcel, int)`: the object being written is a return value, that is the result of a function such as "`Parcelable someFunction()`", "`void someFunction(out Parcelable)`", or "`void someFunction(inout Parcelable)`".

Fields
`public static final Creator<AssistStructure>`	`CREATOR`

Public constructors
`AssistStructure()`

Public methods
`int`	`describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`long`	`getAcquisitionEndTime()` Returns the time when the activity finished generating assist data to build the AssistStructure.
`long`	`getAcquisitionStartTime()` Returns the time when the activity started generating assist data to build the AssistStructure.
`ComponentName`	`getActivityComponent()` Return the activity this AssistStructure came from.
`AssistStructure.WindowNode`	`getWindowNodeAt(int index)` Return one of the windows in the assist data.
`int`	`getWindowNodeCount()` Return the number of window contents that have been collected in this assist data.
`boolean`	`isHomeActivity()` Returns whether the activity associated with this AssistStructure was the home activity (Launcher) at the time the assist data was acquired.
`void`	`writeToParcel(Parcel out, int flags)` Flatten this object in to a Parcel.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

From interface


        
          android.os.Parcelable

`abstract int`	`describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`abstract void`	`writeToParcel(Parcel dest, int flags)` Flatten this object in to a Parcel.

Fields

CREATOR

public static final Creator<AssistStructure> CREATOR

Public constructors

AssistStructure

public AssistStructure ()

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`

getAcquisitionEndTime

public long getAcquisitionEndTime ()

Returns the time when the activity finished generating assist data to build the AssistStructure. The time is as specified by SystemClock#uptimeMillis().

Returns
`long`	Returns the acquisition end time of the assist data, in milliseconds.

See also:

getAcquisitionStartTime()

getAcquisitionStartTime

public long getAcquisitionStartTime ()

Returns the time when the activity started generating assist data to build the AssistStructure. The time is as specified by SystemClock#uptimeMillis().

Returns
`long`	Returns the acquisition start time of the assist data, in milliseconds.

See also:

getAcquisitionEndTime()

getActivityComponent

public ComponentName getActivityComponent ()

Return the activity this AssistStructure came from.

Returns
`ComponentName`

getWindowNodeAt

public AssistStructure.WindowNode getWindowNodeAt (int index)

Return one of the windows in the assist data.

Parameters
`index`	`int`: Which window to retrieve, may be 0 to `getWindowNodeCount()`-1.

Returns
`AssistStructure.WindowNode`

getWindowNodeCount

public int getWindowNodeCount ()

Return the number of window contents that have been collected in this assist data.

Returns
`int`

isHomeActivity

public boolean isHomeActivity ()

Returns whether the activity associated with this AssistStructure was the home activity (Launcher) at the time the assist data was acquired.

Returns
`boolean`	Whether the activity was the home activity.

See also:

Intent.CATEGORY_HOME

writeToParcel

public void writeToParcel (Parcel out, 
                int flags)

Flatten this object in to a Parcel.

Parameters
`out`	`Parcel`: The Parcel in which the object should be written.
`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

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AssistStructure

Summary

Nested classes

Inherited constants

Fields

Public constructors

Public methods

Inherited methods

Fields

CREATOR

Public constructors

AssistStructure

Public methods

describeContents

getAcquisitionEndTime

getAcquisitionStartTime

getActivityComponent

getWindowNodeAt

getWindowNodeCount

isHomeActivity

writeToParcel