# Callback

public abstract class Callback

#### Inheritors

OperationCallback

## Constructors

RongIMClient.Callback
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public void RongIMClient.Callback()

## Functions

onCallback
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public void onCallback()
onError
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public abstract void onError(RongIMClient.ErrorCode errorCode)
onFail
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public void onFail(int errorCode)
public void onFail(RongIMClient.ErrorCode errorCode)
onSuccess
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public abstract void onSuccess()