# Changes
* Support RN 0.60
* Migrate to AndroidX
* Improve draw behind StatusBar (Preparation for #4258)
* Don't push BottomTabs when keyboard is displayed (Fixes #4005, #3424)
    - It won't be needed to toggle the BottomTabs when Keyboard is visible
* BottomTab badge and dot indicator are not animated by default on Android (parity with iOS)

# Updating from v2
v3 is currently in alpha. To update simply npm install `3.0.0-alpha.11` - `npm install --save react-native-navigation@3.0.0-alpha.11`.
Breaking changes are outlined below.

## Layout system changes on **Android**
* Parent layouts (BottomsTabs, Stack, SideMenu) are always laid out behind the StatusBar.
* Components (`component` and `externalComponent`) are measured and offset according to the StatusBar.

In this release, We're changing the layout system in order to provide better support for immersive and full screen apps. In this release we've improved support for drawing behind the StatusBar,  next we'll address drawing behind the NavigationBar. 

Use the `drawBehind` and `translucent` options to control the StatusBar
```js
statusBar: {
  drawBehind: true,  // will draw a screen behind the StatusBar
  translucent: true // Usually you'll want to have drawBehind: true when this is true
}
```

While this isn't a breaking API change - there are a few breaking side effects.

### How will my app be effected
1. When the keyboard is opened, BottomTabs will now be drawn behind the keyboard and won't shift upwards. This is in parity with the current behaviour in iOS. For the most part, this isn't a breaking change. Toggling BottomTabs when TextInput's focus changes won't be needed anymore.

2. While parent controllers are drawn behind the StatusBar, their background isn't.
This means that when transitioning from a destinations drawn under the StatusBar to a destination drawn behind it, the application's default background color will be visible behind the StatusBar.
If you application's theme is dark, you might want to change the `windowBackground` property to mitigate this:

Add the following to your application's `style.xml`
```xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <item name="android:windowBackground">@color/backgroundColor</item>
    </style>

    <!--This is your application's default background color.
    It will be visible when the app is first opened (while the splash layout is visible)
    and when transitioning between a destination a screen drawn under the StatusBar to
    a destination drawn behind it-->
    <item name="backgroundColor" type="color">#f00</item>
</resources>
```

## AndroidX migration
We've migrated RNN to AndroidX, please follow migration instructions in the react-native repo.

## Removed SyncUiImplementation
[SyncUiImplementation](https://github.com/wix/react-native-navigation/blob/master/lib/android/app/src/reactNative57WixFork/java/com/reactnativenavigation/react/SyncUiImplementation.java) was used to overcome a bug in RN's UiImplementation. This workaround was added to RN's `UiImplementation` in RN 0.60 (thanks @SudoPlz) and can be removed from RNN.

If you're using `SyncUiImplementation` your app will fail to compile after upgrading to v3. Simply remove the following code from your `MainApplication.java`
```diff
- import com.facebook.react.uimanager.UIImplementationProvider;
- import com.reactnativenavigation.react.SyncUiImplementation;


- @Override
- protected UIImplementationProvider getUIImplementationProvider() {
-     return new SyncUiImplementation.Provider();
- }
```

## BottomTab badge and dot indicator are not animated by default on Android (parity with iOS)
Showing and hiding badge and dot indicator are now not animated by default. Badge animation is now controlled with the `bottomTab.animateBadge` property and dot indicator with `bottomTab.dotIndicator.animate` property.

#### The following option will show a badge with animation
```js
bottomTab: {
  badge: 'new,
  animateBadge: true
}
```

#### The following option will show a dot indicator with animation
```js
bottomTab: {
  dotIndicator: {
    visible: true,
    animate: true
  }
}
```

closes #5228

Unmount buttons when corresponding screen is unmounted

Currently buttons were unmounted each time a screen was pushed to the stack.
As we're clearing props when screens are unmounted from the prop store - when a screen
was popped to - its buttons's props were undefined.

This commit changes things so that buttons are unmounted when buttons are set
using mergeOptions and when the corresponding screen is unmounted.

Implement Element transition on Android

This commit adds basic support for Element transition to Android.
Currently, only Shared Transition is supported and only when pushing screens.

There are a few caveats you need to be aware of if you intend to use
this feature in its current state:

1. Since elements need to be laid out before the transition can start, Set `waitForRender: true` when pushing the destination screen.
2. Fade animation has to be used when pushing screens with shared elements.

API

```js
options: {
  animations: {
    push: {
      waitForRender: true,
      content: {
        alpha: {
          from: 0,
          to: 1,
          duration: 250
        }
      }
    }
  },
  customTransition: {
    animations: [
    ]
  }
}
```