Mixing
React native camera going blank on navigation
I'm using expo's Camera module and react native navigation to go from a simple Stack navigator where I have:
--Add
--Home
--Profile
On using the Camera module in the Add tab, i'm able to view the camera perfectly one time, however switching tabs and coming back gives me a blank view till I refresh the app again.. I understand that expo only supports one camera, and I do have only one instance running in the app.. I can also see that my components are not unmounted on tab switch, which is something needed inorder to maintain the state. I looked at react navigation's reset() but their official docs are down and none of the comments are useful enough.. Can someone explain how to kill that component on switch or just to make the camera work after switching?
javascript
android react-native expo asked Nov 20 '18 at 3:28
Yashank VarshneyYashank Varshney
349
add a comment |
I'm using expo's Camera module and react native navigation to go from a simple Stack navigator where I have:
--Add
--Home
--Profile
On using the Camera module in the Add tab, i'm able to view the camera perfectly one time, however switching tabs and coming back gives me a blank view till I refresh the app again.. I understand that expo only supports one camera, and I do have only one instance running in the app.. I can also see that my components are not unmounted on tab switch, which is something needed inorder to maintain the state. I looked at react navigation's reset() but their official docs are down and none of the comments are useful enough.. Can someone explain how to kill that component on switch or just to make the camera work after switching?
javascript
android react-native expo asked Nov 20 '18 at 3:28
Yashank VarshneyYashank Varshney
349
add a comment |
I'm using expo's Camera module and react native navigation to go from a simple Stack navigator where I have:
--Add
--Home
--Profile
On using the Camera module in the Add tab, i'm able to view the camera perfectly one time, however switching tabs and coming back gives me a blank view till I refresh the app again.. I understand that expo only supports one camera, and I do have only one instance running in the app.. I can also see that my components are not unmounted on tab switch, which is something needed inorder to maintain the state. I looked at react navigation's reset() but their official docs are down and none of the comments are useful enough.. Can someone explain how to kill that component on switch or just to make the camera work after switching?
javascript
android react-native expo asked Nov 20 '18 at 3:28
Yashank VarshneyYashank Varshney
349
I'm using expo's Camera module and react native navigation to go from a simple Stack navigator where I have:
--Add
--Home
--Profile
On using the Camera module in the Add tab, i'm able to view the camera perfectly one time, however switching tabs and coming back gives me a blank view till I refresh the app again.. I understand that expo only supports one camera, and I do have only one instance running in the app.. I can also see that my components are not unmounted on tab switch, which is something needed inorder to maintain the state. I looked at react navigation's reset() but their official docs are down and none of the comments are useful enough.. Can someone explain how to kill that component on switch or just to make the camera work after switching?
javascript
android react-native expo javascript
android react-native expo asked Nov 20 '18 at 3:28
Yashank VarshneyYashank Varshney
349
asked Nov 20 '18 at 3:28
Yashank VarshneyYashank Varshney
349
asked Nov 20 '18 at 3:28
Yashank VarshneyYashank Varshney
349
asked Nov 20 '18 at 3:28
Yashank VarshneyYashank Varshney
349
asked Nov 20 '18 at 3:28
Yashank VarshneyYashank Varshney
349
349
add a comment |
add a comment |
1 Answer
1
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votes
I was able to solve this by using onFocus provided by react-navigation.. It was bit tough getting the info with the docs being down but here is what worked:
import { withNavigationFocus } from 'react-navigation'
render() {
const { isFocused } = this.props
return (
<View>
{ isFocused && <Camera ... /> }
</View
)
}
export default withNavigationFocus(Component)
answered Nov 20 '18 at 4:09
Yashank VarshneyYashank Varshney
349
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I was able to solve this by using onFocus provided by react-navigation.. It was bit tough getting the info with the docs being down but here is what worked:
import { withNavigationFocus } from 'react-navigation'
render() {
const { isFocused } = this.props
return (
<View>
{ isFocused && <Camera ... /> }
</View
)
}
export default withNavigationFocus(Component)
answered Nov 20 '18 at 4:09
Yashank VarshneyYashank Varshney
349
add a comment |
I was able to solve this by using onFocus provided by react-navigation.. It was bit tough getting the info with the docs being down but here is what worked:
import { withNavigationFocus } from 'react-navigation'
render() {
const { isFocused } = this.props
return (
<View>
{ isFocused && <Camera ... /> }
</View
)
}
export default withNavigationFocus(Component)
answered Nov 20 '18 at 4:09
Yashank VarshneyYashank Varshney
349
add a comment |
I was able to solve this by using onFocus provided by react-navigation.. It was bit tough getting the info with the docs being down but here is what worked:
import { withNavigationFocus } from 'react-navigation'
render() {
const { isFocused } = this.props
return (
<View>
{ isFocused && <Camera ... /> }
</View
)
}
export default withNavigationFocus(Component)
answered Nov 20 '18 at 4:09
Yashank VarshneyYashank Varshney
349
I was able to solve this by using onFocus provided by react-navigation.. It was bit tough getting the info with the docs being down but here is what worked:
import { withNavigationFocus } from 'react-navigation'
render() {
const { isFocused } = this.props
return (
<View>
{ isFocused && <Camera ... /> }
</View
)
}
export default withNavigationFocus(Component)
answered Nov 20 '18 at 4:09
Yashank VarshneyYashank Varshney
349
answered Nov 20 '18 at 4:09
Yashank VarshneyYashank Varshney
349
answered Nov 20 '18 at 4:09
Yashank VarshneyYashank Varshney
349
answered Nov 20 '18 at 4:09
Yashank VarshneyYashank Varshney
349
349
add a comment |
add a comment |
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