```
public interface Action

                    
```
The Action class encapsulates logic for completing an action in a Camera2 environment. In this case, we are often interested in constantly receiving the CaptureResult and CaptureRequest callbacks, as well as applying changes to a CaptureRequest.Builder and having them applied to the sensor. The Action class receives the given callbacks and can operate over the engine through the ActionHolder object. Each Action operates on a given state in a given moment. This base class offers the STATE_COMPLETED state which is common to all actions. See BaseAction for a base implementation.

Method Summary

Modifier and Type	Method	Description
`abstract int`	`getState()`	Returns the current state.
`abstract void`	`start(ActionHolder holder)`	Starts this action.
`abstract void`	`abort(ActionHolder holder)`	Aborts this action.
`abstract void`	`addCallback(ActionCallback callback)`	Adds an ActionCallback to receive statechange events.
`abstract void`	`removeCallback(ActionCallback callback)`	Removes a previously added callback.
`abstract void`	`onCaptureStarted(ActionHolder holder, CaptureRequest request)`	Called from onCaptureStarted.
`abstract void`	`onCaptureProgressed(ActionHolder holder, CaptureRequest request, CaptureResult result)`	Called from onCaptureProgressed.
`abstract void`	`onCaptureCompleted(ActionHolder holder, CaptureRequest request, TotalCaptureResult result)`	Called from onCaptureCompleted.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - getState
```
 abstract int getState()
```
    Returns the current state.
  - start
```
 abstract void start(ActionHolder holder)
```
    Starts this action.
    
    Parameters:
    
    holder - the holder
  - abort
```
 abstract void abort(ActionHolder holder)
```
    Aborts this action.
    
    Parameters:
    
    holder - the holder
  - addCallback
```
 abstract void addCallback(ActionCallback callback)
```
    Adds an ActionCallback to receive statechange events.
    
    Parameters:
    
    callback - a callback
  - removeCallback
```
 abstract void removeCallback(ActionCallback callback)
```
    Removes a previously added callback.
    
    Parameters:
    
    callback - a callback
  - onCaptureStarted
```
 abstract void onCaptureStarted(ActionHolder holder, CaptureRequest request)
```
    Called from onCaptureStarted.
    
    Parameters:
    
    holder - the holder
    
    request - the request
  - onCaptureProgressed
```
 abstract void onCaptureProgressed(ActionHolder holder, CaptureRequest request, CaptureResult result)
```
    Called from onCaptureProgressed.
    
    Parameters:
    
    holder - the holder
    
    request - the request
    
    result - the result
  - onCaptureCompleted
```
 abstract void onCaptureCompleted(ActionHolder holder, CaptureRequest request, TotalCaptureResult result)
```
    Called from onCaptureCompleted.
    
    Parameters:
    
    holder - the holder
    
    request - the request
    
    result - the result

Interface Action

Method Summary

Methods inherited from class java.lang.Object

Method Detail

getState

start

abort

addCallback

removeCallback

onCaptureStarted

onCaptureProgressed

onCaptureCompleted