Added in [API level 3](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary: [Inherited Constants](https://developer.android.com/reference/android/os/ResultReceiver#inhconstants) \| [Fields](https://developer.android.com/reference/android/os/ResultReceiver#lfields) \| [Ctors](https://developer.android.com/reference/android/os/ResultReceiver#pubctors) \| [Methods](https://developer.android.com/reference/android/os/ResultReceiver#pubmethods) \| [Protected Methods](https://developer.android.com/reference/android/os/ResultReceiver#promethods) \| [Inherited Methods](https://developer.android.com/reference/android/os/ResultReceiver#inhmethods)

# ResultReceiver

*** ** * ** ***

` public class ResultReceiver `   
` 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.os.ResultReceiver |

<br />

*** ** * ** ***

Generic interface for receiving a callback result from someone. Use this by creating a subclass and implement `https://developer.android.com/reference/android/os/ResultReceiver#onReceiveResult(int,%20android.os.Bundle)`, which you can then pass to others and send through IPC, and receive results they supply with `https://developer.android.com/reference/android/os/ResultReceiver#send(int,%20android.os.Bundle)`.

Note: the implementation underneath is just a simple wrapper around a `https://developer.android.com/reference/android/os/Binder` that is used to perform the communication. This means semantically you should treat it as such: this class does not impact process lifecycle management (you must be using some higher-level component to tell the system that your process needs to continue running), the connection will break if your process goes away for any reason, etc.

<br />

## Summary

### 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/os/ResultReceiver>` | `https://developer.android.com/reference/android/os/ResultReceiver#CREATOR` <br /> |

| ### Public constructors ||
|---|---|
| ` https://developer.android.com/reference/android/os/ResultReceiver#ResultReceiver(android.os.Handler)(https://developer.android.com/reference/android/os/Handler handler) ` Create a new ResultReceive to receive results. |

| ### Public methods ||
|---|---|
| ` int` | ` https://developer.android.com/reference/android/os/ResultReceiver#describeContents()() ` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. |
| ` void` | ` https://developer.android.com/reference/android/os/ResultReceiver#send(int,%20android.os.Bundle)(int resultCode, https://developer.android.com/reference/android/os/Bundle resultData) ` Deliver a result to this receiver. |
| ` void` | ` https://developer.android.com/reference/android/os/ResultReceiver#writeToParcel(android.os.Parcel,%20int)(https://developer.android.com/reference/android/os/Parcel out, int flags) ` Flatten this object in to a Parcel. |

| ### Protected methods ||
|---|---|
| ` void` | ` https://developer.android.com/reference/android/os/ResultReceiver#onReceiveResult(int,%20android.os.Bundle)(int resultCode, https://developer.android.com/reference/android/os/Bundle resultData) ` Override to receive results delivered to this object. |

### 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 3](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

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

<br />

<br />

## Public constructors

### ResultReceiver

Added in [API level 3](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public ResultReceiver (Handler handler)
```

Create a new ResultReceive to receive results. Your `https://developer.android.com/reference/android/os/ResultReceiver#onReceiveResult(int,%20android.os.Bundle)` method will be called from the thread running <var translate="no">handler</var> if given, or from an arbitrary thread if null.

<br />

| Parameters ||
|---|---|
| `handler` | `Handler` <br /> |

## Public methods

### describeContents

Added in [API level 3](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` |

### send

Added in [API level 3](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public void send (int resultCode, 
                Bundle resultData)
```

Deliver a result to this receiver. Will call `https://developer.android.com/reference/android/os/ResultReceiver#onReceiveResult(int,%20android.os.Bundle)`, always asynchronously if the receiver has supplied a Handler in which to dispatch the result.

<br />

| Parameters ||
|---|---|
| `resultCode` | `int`: Arbitrary result code to deliver, as defined by you. <br /> |
| `resultData` | `Bundle`: Any additional data provided by you. <br /> |

### writeToParcel

Added in [API level 3](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

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

Flatten this object in to a Parcel.

<br />

| Parameters ||
|---|---|
| `out` | `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` |

## Protected methods

### onReceiveResult

Added in [API level 3](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
protected void onReceiveResult (int resultCode, 
                Bundle resultData)
```

Override to receive results delivered to this object.

<br />

| Parameters ||
|---|---|
| `resultCode` | `int`: Arbitrary result code delivered by the sender, as defined by the sender. <br /> |
| `resultData` | `Bundle`: Any additional data provided by the sender. <br /> |