SurfaceCallback

```
public interface CameraPreview.SurfaceCallback

                    
```
This is used to notify CameraEngine to recompute its camera Preview size.After that, CameraView will need a new layout pass to adapt to the Preview size.

Method Summary

Modifier and Type	Method	Description
`abstract void`	`onSurfaceAvailable()`	Called when the surface is available.
`abstract void`	`onSurfaceChanged()`	Called when the surface has changed.
`abstract void`	`onSurfaceDestroyed()`	Called when the surface was destroyed.

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

- Method Detail
  - onSurfaceAvailable
```
 abstract void onSurfaceAvailable()
```
    Called when the surface is available.
  - onSurfaceChanged
```
 abstract void onSurfaceChanged()
```
    Called when the surface has changed.
  - onSurfaceDestroyed
```
 abstract void onSurfaceDestroyed()
```
    Called when the surface was destroyed.