Allows you to subscribe to gesture navigation events, we have a custom keyboard that we want to hide and show when gesture is being used to navigate (same as native keyboard)
A lot of times, we want to prompt before leaving a screen if we have unsaved changes. Currently, we need to handle multiple cases to prevent this:
- Disable swipe gestures
- Override the back button in header
- Override the hardware back button on Android
This PR adds a new event which is emitted before a screen gets removed, and the developer has a chance to ask the user before closing the screen.
Example:
```js
React.useEffect(
() =>
navigation.addListener('beforeRemove', (e) => {
if (!hasUnsavedChanges) {
return;
}
e.preventDefault();
Alert.alert(
'Discard changes?',
'You have unsaved changes. Are you sure to discard them and leave the screen?',
[
{ text: "Don't leave", style: 'cancel', onPress: () => {} },
{
text: 'Discard',
style: 'destructive',
onPress: () => navigation.dispatch(e.data.action),
},
]
);
}),
[navigation, hasUnsavedChanges]
);
```
Added `collapsable={false}` to the View in order for the Android to render screens properly. This issue is most probably similar to 9c06a92d09 but fixes it on Android since the View seems to be removed from a native view hierarchy due to not drawing anything. To see the bug go to https://github.com/software-mansion/react-native-screens/issues/544.
## Motivation
Right now `headerMode: float` renders an absolutely-positioned header. To offset the content appropriately, it then measures the height of the header and compensates with a margin. This approach unfortunately doesn't work well for animations.
Before | After
:-------------------------:|:-------------------------:
<img src="http://ashoat.com/jerky_absolute.gif" width="300" /> | <img src="http://ashoat.com/smooth_relative.gif" width="300" />
## Approach
When rendering the header absolutely we want to render it above (after, in sibling order) the content. But when rendering it relatively we want to render it first (before, in sibling order).
The margin compensation code is no longer necessary so I removed it.
## Test plan
I used the `StackHeaderCustomization` example to make sure transitions between `headerTransparent` and `!headerTransparent` looked good. I added a custom (taller) header to test if height transitions looked good, and toggled `headerShown` to make sure that transitioned well too.
Would be open to any other suggestions of things to test!
This commit adds a check to detect if the screen content fills the available body, and if yes, then it adjusts the styles so that scrolling triggers a scroll on the body which hides the address bar in browser.
Tested on Safari in iOS and Chrome on Android.
This behaviour can be overriden by the user by specifying `cardStyle: { flex: 1 }`, which will keep both the header and the address bar always visible.
Gesture handler doesn't work great on Web and causes issues such as disabling text selection even when not enabled. So we stub it out. It also reduces bundle size on web.
seems `react-native-screens` doesn't handle active screens properly and shows a blank page instead on web when a number is specified in the `active` prop.
closes#7485
I find it sometimes useful to define overlay renderer on my own. Eg. I needed to replace the background with BlurView and with this API I find it quite easy
Co-authored-by: Satyajit Sahoo <satyajit.happy@gmail.com>
The problem here is that when we scroll back really fast, even though velocity is negative, `Math.abs(translation + velocity * gestureVelocityImpact)` will end up bigger than `distance / 2`.
I removed the `Math.abs`, I think it's not necessary. When `translation + velocity * gestureVelocityImpact` is negative, it's also < `distance / 2` and we should just close the screen.
Closes#6782
