Added in [API level 31](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary: [Ctors](https://developer.android.com/reference/android/security/AppUriAuthenticationPolicy.Builder#pubctors) \| [Methods](https://developer.android.com/reference/android/security/AppUriAuthenticationPolicy.Builder#pubmethods) \| [Inherited Methods](https://developer.android.com/reference/android/security/AppUriAuthenticationPolicy.Builder#inhmethods)

# AppUriAuthenticationPolicy.Builder

*** ** * ** ***


`
public
static
final

class
AppUriAuthenticationPolicy.Builder
`


`

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


`

`


`

|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | android.security.AppUriAuthenticationPolicy.Builder |

<br />

*** ** * ** ***

Builder class for `https://developer.android.com/reference/android/security/AppUriAuthenticationPolicy` objects.

## Summary

| ### Public constructors ||
|---|---|
| ` https://developer.android.com/reference/android/security/AppUriAuthenticationPolicy.Builder#Builder()() ` Initialize a new Builder to construct an `https://developer.android.com/reference/android/security/AppUriAuthenticationPolicy`. |

| ### Public methods ||
|---|---|
| ` https://developer.android.com/reference/android/security/AppUriAuthenticationPolicy.Builder` | ` https://developer.android.com/reference/android/security/AppUriAuthenticationPolicy.Builder#addAppAndUriMapping(java.lang.String,%20android.net.Uri,%20java.lang.String)(https://developer.android.com/reference/java/lang/String appPackageName, https://developer.android.com/reference/android/net/Uri uri, https://developer.android.com/reference/java/lang/String alias) ` Adds mappings from an app and URI to an alias, which will be used for authentication. |
| ` https://developer.android.com/reference/android/security/AppUriAuthenticationPolicy` | ` https://developer.android.com/reference/android/security/AppUriAuthenticationPolicy.Builder#build()() ` Combines all of the attributes that have been set on the `https://developer.android.com/reference/android/security/AppUriAuthenticationPolicy.Builder` |

| ### 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*. | ||

## Public constructors

### Builder

Added in [API level 31](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public Builder ()
```

Initialize a new Builder to construct an `https://developer.android.com/reference/android/security/AppUriAuthenticationPolicy`.

<br />

## Public methods

### addAppAndUriMapping

Added in [API level 31](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public AppUriAuthenticationPolicy.Builder addAppAndUriMapping (String appPackageName, 
                Uri uri, 
                String alias)
```

Adds mappings from an app and URI to an alias, which will be used for authentication.


If this method is called with a package name and URI that was previously added, the
previous alias will be overwritten.


When the system tries to determine which alias to return to a requesting app calling
`KeyChain.choosePrivateKeyAlias`, it will choose the alias whose associated URI
exactly matches the URI provided in `https://developer.android.com/reference/android/security/KeyChain#choosePrivateKeyAlias(android.app.Activity,%20android.security.KeyChainAliasCallback,%20java.lang.String[],%20java.security.Principal[],%20android.net.Uri,%20java.lang.String)` or the URI
built from the host and port provided in `https://developer.android.com/reference/android/security/KeyChain#choosePrivateKeyAlias(android.app.Activity,%20android.security.KeyChainAliasCallback,%20java.lang.String[],%20java.security.Principal[],%20java.lang.String,%20int,%20java.lang.String)`.

<br />

| Parameters ||
|---|---|
| `appPackageName` | `String`: The app's package name to authenticate the user to. This value cannot be `null`. <br /> |
| `uri` | `Uri`: The URI to authenticate the user to. This value cannot be `null`. <br /> |
| `alias` | `String`: The alias which will be used for authentication. This value cannot be `null`. <br /> |

| Returns ||
|---|---|
| `https://developer.android.com/reference/android/security/AppUriAuthenticationPolicy.Builder` | the same Builder instance. This value cannot be `null`. <br /> |

### build

Added in [API level 31](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public AppUriAuthenticationPolicy build ()
```

Combines all of the attributes that have been set on the `https://developer.android.com/reference/android/security/AppUriAuthenticationPolicy.Builder`

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/android/security/AppUriAuthenticationPolicy` | a new `https://developer.android.com/reference/android/security/AppUriAuthenticationPolicy` object. This value cannot be `null`. <br /> |