# Transition
The transition effect in UniWebView is easy. We provide several built-in show/hide visual transition effects. You can also animate the position and size of web view on the screen.
# Show / Hide Transition
Show
and Hide
methods accept several parameters to define a better visual effect and natural transition experience. The full signatures of these methods are:
bool Show(
bool fade = false,
UniWebViewTransitionEdge edge = UniWebViewTransitionEdge.None,
float duration = 0.4f,
Action completionHandler = null
)
bool Hide(
bool fade = false,
UniWebViewTransitionEdge edge = UniWebViewTransitionEdge.None,
float duration = 0.4f,
Action completionHandler = null
)
By default, if no parameters are given when called, the Show
and Hide
happens without animation. If you set either the fade
to true
or the edge
to any value except for UniWebViewTransitionEdge.None
, the operation will happen with a transition animation.
fade
- Fades in or out the web view while show or hideedge
- Defines the show from or hide to edge. The edge transition is a modal presenting or dismissing animation.
These sample code below:
webView.Frame = new Rect(0, 0, Screen.width, Screen.height);
webView.Show(true, UniWebViewTransitionEdge.Bottom, 0.35f);
// Later
webView.Hide(true, UniWebViewTransitionEdge.Bottom, 0.35f);
produce the result:
NOTICE
A bool
value is returned from Show
or Hide
, it represents whether the Show
or Hide
command is accepted and going to be executed.
Only one transition is allowed at a time. If you are trying to initialize another transition while the previous not finished yet, the new one will not start and the return value would be false
.
# Move Animation
UniWebView also supports to be animated to a new position and size while it is being displayed:
webView.Frame = new Rect(0, 0, Screen.width, Screen.height);
var halfScreen = new Rect(0, 0, Screen.width, Screen.height / 2.0);
// The animation will last for 400ms and with 100ms delay:
webView.AnimateTo(halfScreen, 0.4f, 0.1f, ()=>{
print("Animation finished!");
});
For more about transition and animation, read the API Reference.