SimpleListener

All Implemented Interfaces:

com.otaliastudios.zoom.ZoomEngine.Listener
```
public abstract class ZoomEngine.SimpleListener
 implements ZoomEngine.Listener
                    
```
A simple implementation of Listener that will extract the translation and scale values from the output matrix.

Constructor Summary

Constructors
Constructor	Description
`ZoomEngine.SimpleListener()`

Method Summary

Modifier and Type	Method	Description
`Unit`	`onUpdate(ZoomEngine engine, Matrix matrix)`	Notifies that the inner matrix was updated.

Methods inherited from class com.otaliastudios.zoom.ZoomEngine.SimpleListener
onIdle
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ZoomEngine.SimpleListener
```
ZoomEngine.SimpleListener()
```
- Method Detail
  - onUpdate
```
 Unit onUpdate(ZoomEngine engine, Matrix matrix)
```
    Notifies that the inner matrix was updated. The passed matrix can be changed, but is not guaranteed to be stable. For a long lasting value it is recommended to make a copy of it using Matrix.set.
    
    Parameters:
    
    engine - the engine hosting the matrix
    
    matrix - a matrix with the given updates