react-native update state automatically












0















I am using mobx to pass state.



First I store some data to mobx.
For example, in the FirstScreen, I store some data using mobx: store.data = 'somedata'



Then, I want to pass this data in my SecondScreen, so I do:



<Button onPress={()=> this.setState({putsomeData:store.data})}>
<Text>update</Text>
</Button>


This would work fine. But is there a way I could listen to the update and automatically update the state without using the button?










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  • Setting your state in a lifecycle method does not fit your question? For example in componentDidMount() of the SecondScreen.

    – Milore
    Dec 31 '18 at 10:44
















0















I am using mobx to pass state.



First I store some data to mobx.
For example, in the FirstScreen, I store some data using mobx: store.data = 'somedata'



Then, I want to pass this data in my SecondScreen, so I do:



<Button onPress={()=> this.setState({putsomeData:store.data})}>
<Text>update</Text>
</Button>


This would work fine. But is there a way I could listen to the update and automatically update the state without using the button?










share|improve this question























  • Setting your state in a lifecycle method does not fit your question? For example in componentDidMount() of the SecondScreen.

    – Milore
    Dec 31 '18 at 10:44














0












0








0








I am using mobx to pass state.



First I store some data to mobx.
For example, in the FirstScreen, I store some data using mobx: store.data = 'somedata'



Then, I want to pass this data in my SecondScreen, so I do:



<Button onPress={()=> this.setState({putsomeData:store.data})}>
<Text>update</Text>
</Button>


This would work fine. But is there a way I could listen to the update and automatically update the state without using the button?










share|improve this question














I am using mobx to pass state.



First I store some data to mobx.
For example, in the FirstScreen, I store some data using mobx: store.data = 'somedata'



Then, I want to pass this data in my SecondScreen, so I do:



<Button onPress={()=> this.setState({putsomeData:store.data})}>
<Text>update</Text>
</Button>


This would work fine. But is there a way I could listen to the update and automatically update the state without using the button?







react-native mobx mobx-react






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asked Dec 31 '18 at 9:44









kirimikirimi

238113




238113













  • Setting your state in a lifecycle method does not fit your question? For example in componentDidMount() of the SecondScreen.

    – Milore
    Dec 31 '18 at 10:44



















  • Setting your state in a lifecycle method does not fit your question? For example in componentDidMount() of the SecondScreen.

    – Milore
    Dec 31 '18 at 10:44

















Setting your state in a lifecycle method does not fit your question? For example in componentDidMount() of the SecondScreen.

– Milore
Dec 31 '18 at 10:44





Setting your state in a lifecycle method does not fit your question? For example in componentDidMount() of the SecondScreen.

– Milore
Dec 31 '18 at 10:44












1 Answer
1






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oldest

votes


















0














in mobx you can use @observer to change your state based on the value



ref. https://mobx.js.org/refguide/observer-component.html






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    1 Answer
    1






    active

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    active

    oldest

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    active

    oldest

    votes









    0














    in mobx you can use @observer to change your state based on the value



    ref. https://mobx.js.org/refguide/observer-component.html






    share|improve this answer




























      0














      in mobx you can use @observer to change your state based on the value



      ref. https://mobx.js.org/refguide/observer-component.html






      share|improve this answer


























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        0








        0







        in mobx you can use @observer to change your state based on the value



        ref. https://mobx.js.org/refguide/observer-component.html






        share|improve this answer













        in mobx you can use @observer to change your state based on the value



        ref. https://mobx.js.org/refguide/observer-component.html







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Dec 31 '18 at 12:27









        JigarJigar

        828316




        828316






























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