Added in [API level 29](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary: [Ctors](https://developer.android.com/reference/android/telephony/SubscriptionManager.OnOpportunisticSubscriptionsChangedListener#pubctors) \| [Methods](https://developer.android.com/reference/android/telephony/SubscriptionManager.OnOpportunisticSubscriptionsChangedListener#pubmethods) \| [Inherited Methods](https://developer.android.com/reference/android/telephony/SubscriptionManager.OnOpportunisticSubscriptionsChangedListener#inhmethods)

# SubscriptionManager.OnOpportunisticSubscriptionsChangedListener

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[Kotlin](https://developer.android.com/reference/kotlin/android/telephony/SubscriptionManager.OnOpportunisticSubscriptionsChangedListener "View this page in Kotlin") \|Java


`
public
static


class
SubscriptionManager.OnOpportunisticSubscriptionsChangedListener
`


`

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


`

`


`

|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | android.telephony.SubscriptionManager.OnOpportunisticSubscriptionsChangedListener |

<br />

*** ** * ** ***

A listener class for monitoring changes to `https://developer.android.com/reference/android/telephony/SubscriptionInfo` records of opportunistic
subscriptions.


Override the onOpportunisticSubscriptionsChanged method in the object that extends this
or `https://developer.android.com/reference/android/telephony/SubscriptionManager#addOnOpportunisticSubscriptionsChangedListener(java.util.concurrent.Executor,%20android.telephony.SubscriptionManager.OnOpportunisticSubscriptionsChangedListener)`
to register your listener and to unregister invoke
`https://developer.android.com/reference/android/telephony/SubscriptionManager#removeOnOpportunisticSubscriptionsChangedListener(android.telephony.SubscriptionManager.OnOpportunisticSubscriptionsChangedListener)`


Permissions android.Manifest.permission.READ_PHONE_STATE is required
for #onOpportunisticSubscriptionsChanged to be invoked.

## Summary

| ### Public constructors ||
|---|---|
| ` https://developer.android.com/reference/android/telephony/SubscriptionManager.OnOpportunisticSubscriptionsChangedListener#OnOpportunisticSubscriptionsChangedListener()() ` |

| ### Public methods ||
|---|---|
| ` void` | ` https://developer.android.com/reference/android/telephony/SubscriptionManager.OnOpportunisticSubscriptionsChangedListener#onOpportunisticSubscriptionsChanged()() ` Callback invoked when there is any change to any SubscriptionInfo. |

| ### 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

### OnOpportunisticSubscriptionsChangedListener

```
public OnOpportunisticSubscriptionsChangedListener ()
```

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## Public methods

### onOpportunisticSubscriptionsChanged

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

```
public void onOpportunisticSubscriptionsChanged ()
```

Callback invoked when there is any change to any SubscriptionInfo. Typically
this method would invoke `https://developer.android.com/reference/android/telephony/SubscriptionManager#getActiveSubscriptionInfoList()`

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