# Sliding Window

### **Overview**

Sliding Window is a fullscreen window that slides in and out of the screen during pop and unpop events. Use it to create transition effects between screens.

![](https://1246655713-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L_mPP3a_E_A7NbRMq7Q%2F-MFVhRWhv0iknd5mvuxc%2F-MFXIhvbiGTIMLMGkdeZ%2Fslidingwindow.gif?alt=media\&token=a390329a-3e40-48f2-8582-9c8244eaaaaa)

### Source Code

{% tabs %}
{% tab title="SlidingWindow class" %}

```java
package com.totalcross;

import totalcross.ui.Container;
import totalcross.ui.Presenter;
import totalcross.ui.SlidingWindow;

public class MySlidingWindow extends SlidingWindow {

    public MySlidingWindow(boolean delayInitUI, Presenter<Container> provider) {
        super(delayInitUI, provider);
    }

    public MySlidingWindow(Presenter<Container> provider, int animDir,
                                                          int totalTime){
        super(provider);
        this.animDir = animDir; // This can be LEFT or RIGHT, any other will
                                // be BOTTOM
        this.totalTime = totalTime; // Time, in milliseconds for the animation
    }
}
```

{% endtab %}

{% tab title="Calling the SlidingWindow" %}

```java
MySlidingWindow slidingWindow = new MySlidingWindow(new Presenter<Container>(){
            
		 @Override
		 public Container getView() {
				return new Container() {
          public void initUI() {
            ImageControl i;
            try {
                i = new ImageControl(new Image("images/logoV.png"));
                i.scaleToFit = true;
                i.centerImage = true;
                add(i, CENTER, CENTER, 100 + DP, 100 + DP);
            } catch (IOException e) {
                e.printStackTrace();
            } catch (ImageException e) {
                e.printStackTrace();
            }
          };
        };
	   }
}, RIGHT, 500);
slidingWindow.popup();
```

{% endtab %}
{% endtabs %}

{% hint style="info" %}
Because it is a more complex example, we only show the specific Sliding Window example code, if you want to see the whole code of the image interface construction [click here](https://github.com/TotalCross/TCSample/blob/master/src/main/java/totalcross/sample/components/Home.java).
{% endhint %}

### Methods

| Type            | Name                                                               | Description                                                                                                                                                                                                                                                                                                                                                                       |
| --------------- | ------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Constructor** | SlidingWindow(Presenter\<Container> provider)                      | Creates a SlidingWindow with the specified provider. Use the provider class to implement your view code.                                                                                                                                                                                                                                                                          |
| **Constructor** | SlidingWindow(Presenter\<Container> provider, boolean delayInitUI) | Creates a SlidingWindow with the specified provider and if it should delay the InitUI execution. Use the delayed InitUI if your screen takes a significant amount of time to load (e.g., it fetches data from a server) and the non-delayed InitUI if it is fast enough to be loaded prior to the animation. If the delayed option is used, the screen will popup with a spinner. |
| **void**        | unpop( )                                                           | Unpops the SlidingWindow, hiding it.                                                                                                                                                                                                                                                                                                                                              |
| **void**        | popup( )                                                           | Popups the SlidingWindow, showing it.                                                                                                                                                                                                                                                                                                                                             |