ScreenManager (gdx2d-core version 1.2.1)

java.lang.Object
- ch.hevs.gdx2d.lib.ScreenManager

```
public class ScreenManager
extends Object
```
Handles multiple rendering screens and enables transitions between those screens.
You can choose the screen to display using its index or automatically switch to the next screen. If the screen index to display is out of range, the first or last screen is shown.
If a transition is already in progress or if the selected screen is already active, the transition is ignored.

Version:

1.1

Author:

Pierre-André Mudry (mui)

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class ScreenManager.TransactionType
Available screen transitions effects.

Nested Classes
Modifier and Type	Class and Description
`static class`	`ScreenManager.TransactionType` Available screen transitions effects.

Field Summary

Fields
Modifier and Type	Field and Description
`protected int`	`activeScreen`
`protected SpriteBatch`	`batch`
`protected FrameBuffer`	`currFbo`
`protected RenderingScreen`	`currScreen`
`protected FrameBuffer`	`nextFbo`
`protected RenderingScreen`	`nextScreen`
`protected int`	`nextScreenIdx`
`protected ArrayList<Class>`	`screens`
`protected ScreenTransition`	`screenTransition`
`protected float`	`time`
`protected boolean`	`transitioning`
`protected ScreenManager.TransactionType`	`transitionStyle`

Constructor Summary

Constructors
Constructor and Description

ScreenManager()

Constructors
Constructor and Description
`ScreenManager()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`activateNextScreen()` Called to activate the next screen without transition
`void`	`activateScreen(int nextScreen)` Show the corresponding screen without transition.
`protected RenderingScreen`	`createInstance(Class c)`
`RenderingScreen`	`getActiveScreen()`
`void`	`registerScreen(Class s)` Add a screen to the screen list
`void`	`render(GdxGraphics g)` Render the current screen to the GdxGraphics
`void`	`sliceTransitionToNext()` Called to transition to the next screen with slicing.
`void`	`slideTransitionToNext()` Called to transition to the next screen with sliding.
`void`	`smoothTransitionToNext()` Called to transition to the next screen with fade-out.
`void`	`transitionTo(int nextScreen, ScreenManager.TransactionType effect)` Called to transition to the specified screen with the corresponding effect.
`void`	`transitionToNext(ScreenManager.TransactionType effect)` Called to transition to the next screen with the corresponding effect.

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

- Field Detail
  - screens
```
protected ArrayList<Class> screens
```
  - activeScreen
```
protected int activeScreen
```
  - currScreen
```
protected RenderingScreen currScreen
```
  - nextScreen
```
protected RenderingScreen nextScreen
```
  - transitionStyle
```
protected ScreenManager.TransactionType transitionStyle
```
  - currFbo
```
protected FrameBuffer currFbo
```
  - nextFbo
```
protected FrameBuffer nextFbo
```
  - batch
```
protected SpriteBatch batch
```
  - time
```
protected float time
```
  - screenTransition
```
protected ScreenTransition screenTransition
```
  - transitioning
```
protected boolean transitioning
```
  - nextScreenIdx
```
protected int nextScreenIdx
```
- Constructor Detail
  - ScreenManager
```
public ScreenManager()
```
- Method Detail
  - createInstance
```
protected RenderingScreen createInstance(Class c)
```
  - render
```
public void render(GdxGraphics g)
```
    Render the current screen to the GdxGraphics
    
    Parameters:
    
    g - The instance of GdxGraphics to draw on
  - registerScreen
```
public void registerScreen(Class s)
```
    Add a screen to the screen list
    
    Parameters:
    
    s - The class of the screen to add
  - activateNextScreen
```
public void activateNextScreen()
```
    Called to activate the next screen without transition
  - activateScreen
```
public void activateScreen(int nextScreen)
```
    Show the corresponding screen without transition.
    
    Parameters:
    
    nextScreen - the screen index to display
  - transitionToNext
```
public void transitionToNext(ScreenManager.TransactionType effect)
```
    Called to transition to the next screen with the corresponding effect.
    
    Parameters:
    
    effect - the screen transition effect to use
  - transitionTo
```
public void transitionTo(int nextScreen,
                         ScreenManager.TransactionType effect)
```
    Called to transition to the specified screen with the corresponding effect.
    
    Parameters:
    
    nextScreen - the screen index to display
    
    effect - the screen transition effect to use
  - sliceTransitionToNext
```
public void sliceTransitionToNext()
```
    Called to transition to the next screen with slicing. Use the ScreenManager.TransactionType.SLICE effect.
    
    See Also:
    
    transitionToNext(TransactionType)
  - slideTransitionToNext
```
public void slideTransitionToNext()
```
    Called to transition to the next screen with sliding. Use the ScreenManager.TransactionType.SLIDE effect.
    
    See Also:
    
    transitionToNext(TransactionType)
  - smoothTransitionToNext
```
public void smoothTransitionToNext()
```
    Called to transition to the next screen with fade-out. Use the ScreenManager.TransactionType.SMOOTH effect.
    
    See Also:
    
    transitionToNext(TransactionType)
  - getActiveScreen
```
public RenderingScreen getActiveScreen()
```
    Returns:
    
    the active screen which is currently rendered or null is a transition is in progress

Class ScreenManager

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

screens

activeScreen

currScreen

nextScreen

transitionStyle

currFbo

nextFbo

batch

time

screenTransition

transitioning

nextScreenIdx

Constructor Detail

ScreenManager

Method Detail

createInstance

render

registerScreen

activateNextScreen

activateScreen

transitionToNext

transitionTo

sliceTransitionToNext

slideTransitionToNext

smoothTransitionToNext

getActiveScreen