Added in [API level 28](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary: [Nested Classes](https://developer.android.com/reference/android/service/autofill/UserData#nestedclasses) \| [Inherited Constants](https://developer.android.com/reference/android/service/autofill/UserData#inhconstants) \| [Fields](https://developer.android.com/reference/android/service/autofill/UserData#lfields) \| [Methods](https://developer.android.com/reference/android/service/autofill/UserData#pubmethods) \| [Inherited Methods](https://developer.android.com/reference/android/service/autofill/UserData#inhmethods)

# UserData

*** ** * ** ***


`
public

final

class
UserData
`


`

extends https://developer.android.com/reference/java/lang/Object


`

`


implements

https://developer.android.com/reference/android/os/Parcelable


`

|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | android.service.autofill.UserData |

<br />

*** ** * ** ***

Defines the user data used for
[field classification](https://developer.android.com/reference/android/service/autofill/AutofillService#FieldClassification).

## Summary

| ### Nested classes ||
|---|---|
| ` class` | `https://developer.android.com/reference/android/service/autofill/UserData.Builder` A builder for `https://developer.android.com/reference/android/service/autofill/UserData` objects. |

| ### Inherited constants |
|---|
| From interface `https://developer.android.com/reference/android/os/Parcelable` |---|---| | `int` | `https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR` Descriptor bit used with `https://developer.android.com/reference/android/os/Parcelable#describeContents()`: indicates that the Parcelable object's flattened representation includes a file descriptor. | | `int` | `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE` Flag for use with `https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)`: 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 https://developer.android.com/reference/android/os/Parcelable.Creator<https://developer.android.com/reference/android/service/autofill/UserData>` | `https://developer.android.com/reference/android/service/autofill/UserData#CREATOR` |

| ### Public methods ||
|---|---|
| ` int` | ` https://developer.android.com/reference/android/service/autofill/UserData#describeContents()() ` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. |
| ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/android/service/autofill/UserData#getFieldClassificationAlgorithm()() ` Gets the name of the default algorithm that is used to calculate `https://developer.android.com/reference/android/service/autofill/FieldClassification.Match#getScore()` match scores}. |
| ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/android/service/autofill/UserData#getFieldClassificationAlgorithmForCategory(java.lang.String)(https://developer.android.com/reference/java/lang/String categoryId) ` Gets the name of the algorithm corresponding to the specific autofill category that is used to calculate `https://developer.android.com/reference/android/service/autofill/FieldClassification.Match#getScore()` |
| ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/android/service/autofill/UserData#getId()() ` Gets the id. |
| ` static int` | ` https://developer.android.com/reference/android/service/autofill/UserData#getMaxCategoryCount()() ` Gets the maximum number of unique category ids that can be passed to the builder's constructor and `https://developer.android.com/reference/android/service/autofill/UserData.Builder#add(java.lang.String,%20java.lang.String)`. |
| ` static int` | ` https://developer.android.com/reference/android/service/autofill/UserData#getMaxFieldClassificationIdsSize()() ` Gets the maximum number of ids that can be passed to `https://developer.android.com/reference/android/service/autofill/FillResponse.Builder#setFieldClassificationIds(android.view.autofill.AutofillId[])`. |
| ` static int` | ` https://developer.android.com/reference/android/service/autofill/UserData#getMaxUserDataSize()() ` Gets the maximum number of values that can be added to a `https://developer.android.com/reference/android/service/autofill/UserData`. |
| ` static int` | ` https://developer.android.com/reference/android/service/autofill/UserData#getMaxValueLength()() ` Gets the maximum length of values passed to the builder's constructor or or `https://developer.android.com/reference/android/service/autofill/UserData.Builder#add(java.lang.String,%20java.lang.String)`. |
| ` static int` | ` https://developer.android.com/reference/android/service/autofill/UserData#getMinValueLength()() ` Gets the minimum length of values passed to the builder's constructor or or `https://developer.android.com/reference/android/service/autofill/UserData.Builder#add(java.lang.String,%20java.lang.String)`. |
| ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/android/service/autofill/UserData#toString()() ` Returns a string representation of the object. |
| ` void` | ` https://developer.android.com/reference/android/service/autofill/UserData#writeToParcel(android.os.Parcel,%20int)(https://developer.android.com/reference/android/os/Parcel parcel, int flags) ` Flatten this object in to a Parcel. |

| ### Inherited methods |
|---|---|
| From class ` https://developer.android.com/reference/java/lang/Object ` |---|---| | ` https://developer.android.com/reference/java/lang/Object` | ` https://developer.android.com/reference/java/lang/Object#clone()() ` Creates and returns a copy of this object. | | ` boolean` | ` https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object obj) ` Indicates whether some other object is "equal to" this one. | | ` void` | ` https://developer.android.com/reference/java/lang/Object#finalize()() ` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. | | ` final https://developer.android.com/reference/java/lang/Class<?>` | ` https://developer.android.com/reference/java/lang/Object#getClass()() ` Returns the runtime class of this `Object`. | | ` int` | ` https://developer.android.com/reference/java/lang/Object#hashCode()() ` Returns a hash code value for the object. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#notify()() ` Wakes up a single thread that is waiting on this object's monitor. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#notifyAll()() ` Wakes up all threads that are waiting on this object's monitor. | | ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/java/lang/Object#toString()() ` Returns a string representation of the object. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#wait(long,%20int)(long timeoutMillis, int nanos) ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#wait(long)(long timeoutMillis) ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#wait()() ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*. | ||
| From interface ` https://developer.android.com/reference/android/os/Parcelable ` |---|---| | ` abstract int` | ` https://developer.android.com/reference/android/os/Parcelable#describeContents()() ` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. | | ` abstract void` | ` https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)(https://developer.android.com/reference/android/os/Parcel dest, int flags) ` Flatten this object in to a Parcel. | ||

## Fields

### CREATOR

Added in [API level 28](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final Creator<UserData> CREATOR
```

<br />

<br />

## Public methods

### describeContents

Added in [API level 28](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
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 `https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)`,
the return value of this method must include the
`https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR` bit.

<br />

| Returns ||
|---|---|
| `int` | a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either `0` or - `https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR` |

### getFieldClassificationAlgorithm

Added in [API level 28](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public String getFieldClassificationAlgorithm ()
```

Gets the name of the default algorithm that is used to calculate
`https://developer.android.com/reference/android/service/autofill/FieldClassification.Match#getScore()` match scores}.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/lang/String` | This value may be `null`. <br /> |

### getFieldClassificationAlgorithmForCategory

Added in [API level 29](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public String getFieldClassificationAlgorithmForCategory (String categoryId)
```

Gets the name of the algorithm corresponding to the specific autofill category
that is used to calculate `https://developer.android.com/reference/android/service/autofill/FieldClassification.Match#getScore()`

<br />

| Parameters ||
|---|---|
| `categoryId` | `String`: autofill field category. This value cannot be `null`. <br /> |

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/lang/String` | String name of algorithm, null if none found. <br /> |

### getId

Added in [API level 28](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public String getId ()
```

Gets the id.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/lang/String` | <br /> |

### getMaxCategoryCount

Added in [API level 28](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static int getMaxCategoryCount ()
```

Gets the maximum number of unique category ids that can be passed to
the builder's constructor and `https://developer.android.com/reference/android/service/autofill/UserData.Builder#add(java.lang.String,%20java.lang.String)`.

<br />

| Returns ||
|---|---|
| `int` | <br /> |

### getMaxFieldClassificationIdsSize

Added in [API level 28](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static int getMaxFieldClassificationIdsSize ()
```

Gets the maximum number of ids that can be passed to `https://developer.android.com/reference/android/service/autofill/FillResponse.Builder#setFieldClassificationIds(android.view.autofill.AutofillId[])`.

<br />

| Returns ||
|---|---|
| `int` | <br /> |

### getMaxUserDataSize

Added in [API level 28](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static int getMaxUserDataSize ()
```

Gets the maximum number of values that can be added to a `https://developer.android.com/reference/android/service/autofill/UserData`.

<br />

| Returns ||
|---|---|
| `int` | <br /> |

### getMaxValueLength

Added in [API level 28](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static int getMaxValueLength ()
```

Gets the maximum length of values passed to the builder's constructor or
or `https://developer.android.com/reference/android/service/autofill/UserData.Builder#add(java.lang.String,%20java.lang.String)`.

<br />

| Returns ||
|---|---|
| `int` | <br /> |

### getMinValueLength

Added in [API level 28](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static int getMinValueLength ()
```

Gets the minimum length of values passed to the builder's constructor or
or `https://developer.android.com/reference/android/service/autofill/UserData.Builder#add(java.lang.String,%20java.lang.String)`.

<br />

| Returns ||
|---|---|
| `int` | <br /> |

### toString

Added in [API level 28](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public String toString ()
```

Returns a string representation of the object.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/lang/String` | a string representation of the object. <br /> |

### writeToParcel

Added in [API level 28](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public void writeToParcel (Parcel parcel, 
                int flags)
```

Flatten this object in to a Parcel.

<br />

| Parameters ||
|---|---|
| `parcel` | `Parcel`: The Parcel in which the object should be written. This value cannot be `null`. <br /> |
| `flags` | `int`: Additional flags about how the object should be written. May be 0 or `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE`. Value is either `0` or a combination of the following: - `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE` |