React native pan responder trapping all touch events from propagating to children
I'm trying to wrap all of my component 'scenes' in an expo multitouch component (which is a wrapper for the pan responder) so that, if a person performs a multitouch gesture at any point, this will trigger an app menu, and otherwise, the child views respond to the touch event. How do I accomplish this? It seems that the parent traps and stops propagation of all events - I would've expected those events to bubble upward from the innermost elements.
Ordinarily I would use a shake gesture, but I'm using expo, which reserves that gesture for its own menu.
Here's my code:
class ResultsScreen extends React.Component {
render() {
const props = {
onTouchBegan: ({ identifier }) => {
console.log('onTouchBegan', identifier);
},
};
return (
<MultiTouchView
style={{ flex: 1 }}
{...props}
>
{ /* scrolling not working */ }
<ScrollView
style={{
flex: 1,
}}
>
</ScrollView>
</MultiTouchView>
)
}
And just to note that it still uses React Native's methods, if I set:
onStartShouldSetPanResponderCapture: ()=>false,
onMoveShouldSetPanResponderCapture: ()=>false,
onStartShouldSetPanResponder: ()=>false,
onMoveShouldSetPanResponder: ()=>false,
within that props object then the underlying elements will respond as expected - I just no longer get the onTouchBegan events.
javascript react-native gesture expo event-bubbling
asked Nov 20 '18 at 0:16
mheaversmheavers
10.9k46153256
add a comment |
I'm trying to wrap all of my component 'scenes' in an expo multitouch component (which is a wrapper for the pan responder) so that, if a person performs a multitouch gesture at any point, this will trigger an app menu, and otherwise, the child views respond to the touch event. How do I accomplish this? It seems that the parent traps and stops propagation of all events - I would've expected those events to bubble upward from the innermost elements.
Ordinarily I would use a shake gesture, but I'm using expo, which reserves that gesture for its own menu.
Here's my code:
class ResultsScreen extends React.Component {
render() {
const props = {
onTouchBegan: ({ identifier }) => {
console.log('onTouchBegan', identifier);
},
};
return (
<MultiTouchView
style={{ flex: 1 }}
{...props}
>
{ /* scrolling not working */ }
<ScrollView
style={{
flex: 1,
}}
>
</ScrollView>
</MultiTouchView>
)
}
And just to note that it still uses React Native's methods, if I set:
onStartShouldSetPanResponderCapture: ()=>false,
onMoveShouldSetPanResponderCapture: ()=>false,
onStartShouldSetPanResponder: ()=>false,
onMoveShouldSetPanResponder: ()=>false,
within that props object then the underlying elements will respond as expected - I just no longer get the onTouchBegan events.
javascript react-native gesture expo event-bubbling
asked Nov 20 '18 at 0:16
mheaversmheavers
10.9k46153256
add a comment |
I'm trying to wrap all of my component 'scenes' in an expo multitouch component (which is a wrapper for the pan responder) so that, if a person performs a multitouch gesture at any point, this will trigger an app menu, and otherwise, the child views respond to the touch event. How do I accomplish this? It seems that the parent traps and stops propagation of all events - I would've expected those events to bubble upward from the innermost elements.
Ordinarily I would use a shake gesture, but I'm using expo, which reserves that gesture for its own menu.
Here's my code:
class ResultsScreen extends React.Component {
render() {
const props = {
onTouchBegan: ({ identifier }) => {
console.log('onTouchBegan', identifier);
},
};
return (
<MultiTouchView
style={{ flex: 1 }}
{...props}
>
{ /* scrolling not working */ }
<ScrollView
style={{
flex: 1,
}}
>
</ScrollView>
</MultiTouchView>
)
}
And just to note that it still uses React Native's methods, if I set:
onStartShouldSetPanResponderCapture: ()=>false,
onMoveShouldSetPanResponderCapture: ()=>false,
onStartShouldSetPanResponder: ()=>false,
onMoveShouldSetPanResponder: ()=>false,
within that props object then the underlying elements will respond as expected - I just no longer get the onTouchBegan events.
javascript react-native gesture expo event-bubbling
asked Nov 20 '18 at 0:16
mheaversmheavers
10.9k46153256
I'm trying to wrap all of my component 'scenes' in an expo multitouch component (which is a wrapper for the pan responder) so that, if a person performs a multitouch gesture at any point, this will trigger an app menu, and otherwise, the child views respond to the touch event. How do I accomplish this? It seems that the parent traps and stops propagation of all events - I would've expected those events to bubble upward from the innermost elements.
Ordinarily I would use a shake gesture, but I'm using expo, which reserves that gesture for its own menu.
Here's my code:
class ResultsScreen extends React.Component {
render() {
const props = {
onTouchBegan: ({ identifier }) => {
console.log('onTouchBegan', identifier);
},
};
return (
<MultiTouchView
style={{ flex: 1 }}
{...props}
>
{ /* scrolling not working */ }
<ScrollView
style={{
flex: 1,
}}
>
</ScrollView>
</MultiTouchView>
)
}
And just to note that it still uses React Native's methods, if I set:
onStartShouldSetPanResponderCapture: ()=>false,
onMoveShouldSetPanResponderCapture: ()=>false,
onStartShouldSetPanResponder: ()=>false,
onMoveShouldSetPanResponder: ()=>false,
within that props object then the underlying elements will respond as expected - I just no longer get the onTouchBegan events.
javascript react-native gesture expo event-bubbling
javascript react-native gesture expo event-bubbling
asked Nov 20 '18 at 0:16
mheaversmheavers
10.9k46153256
asked Nov 20 '18 at 0:16
mheaversmheavers
10.9k46153256
edited Nov 20 '18 at 0:21
mheavers
asked Nov 20 '18 at 0:16
mheaversmheavers
10.9k46153256
asked Nov 20 '18 at 0:16
mheaversmheavers
10.9k46153256
asked Nov 20 '18 at 0:16
mheaversmheavers
10.9k46153256
10.9k46153256
add a comment |
add a comment |
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