Retrieve Data from realtime database on android Studio












-4















enter image description here



I'm trying to read data from my database but it looks i'm failed, please help me



Here's my code
enter image description here






java android firebase firebase-realtime-database







share|improve this question




















  • 1





    Please post your code as text and not as image.

    – PradyumanDixit
    Nov 22 '18 at 12:24











  • Also you're not getting everything in your Firend object because you're crossing one more unique id between your data and the node, you're referencing at.

    – PradyumanDixit
    Nov 22 '18 at 12:26
















-4















enter image description here



I'm trying to read data from my database but it looks i'm failed, please help me



Here's my code
enter image description here






java android firebase firebase-realtime-database







share|improve this question




















  • 1





    Please post your code as text and not as image.

    – PradyumanDixit
    Nov 22 '18 at 12:24











  • Also you're not getting everything in your Firend object because you're crossing one more unique id between your data and the node, you're referencing at.

    – PradyumanDixit
    Nov 22 '18 at 12:26














-4












-4








-4








enter image description here



I'm trying to read data from my database but it looks i'm failed, please help me



Here's my code
enter image description here






java android firebase firebase-realtime-database







share|improve this question
















enter image description here



I'm trying to read data from my database but it looks i'm failed, please help me



Here's my code
enter image description here






java android firebase firebase-realtime-database




java android firebase firebase-realtime-database






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 22 '18 at 22:51









Andrew Thompson

153k27163340




153k27163340










asked Nov 22 '18 at 12:21









HD ProjectHD Project

1




1








  • 1





    Please post your code as text and not as image.

    – PradyumanDixit
    Nov 22 '18 at 12:24











  • Also you're not getting everything in your Firend object because you're crossing one more unique id between your data and the node, you're referencing at.

    – PradyumanDixit
    Nov 22 '18 at 12:26














  • 1





    Please post your code as text and not as image.

    – PradyumanDixit
    Nov 22 '18 at 12:24











  • Also you're not getting everything in your Firend object because you're crossing one more unique id between your data and the node, you're referencing at.

    – PradyumanDixit
    Nov 22 '18 at 12:26








1




1





Please post your code as text and not as image.

– PradyumanDixit
Nov 22 '18 at 12:24





Please post your code as text and not as image.

– PradyumanDixit
Nov 22 '18 at 12:24













Also you're not getting everything in your Firend object because you're crossing one more unique id between your data and the node, you're referencing at.

– PradyumanDixit
Nov 22 '18 at 12:26





Also you're not getting everything in your Firend object because you're crossing one more unique id between your data and the node, you're referencing at.

– PradyumanDixit
Nov 22 '18 at 12:26












1 Answer
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there exist a child node in "friendlist" which is a random string and you are trying to get data from friendlist node which will off course be null



and more over even if the data is not null always try to bound the code in a try catch or check if the value is not null. it will not let the app crash at run time.



and for furture refernce have a look at the docs => https://firebase.google.com/docs/database/android/read-and-write






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    there exist a child node in "friendlist" which is a random string and you are trying to get data from friendlist node which will off course be null



    and more over even if the data is not null always try to bound the code in a try catch or check if the value is not null. it will not let the app crash at run time.



    and for furture refernce have a look at the docs => https://firebase.google.com/docs/database/android/read-and-write






    share|improve this answer




























      0














      there exist a child node in "friendlist" which is a random string and you are trying to get data from friendlist node which will off course be null



      and more over even if the data is not null always try to bound the code in a try catch or check if the value is not null. it will not let the app crash at run time.



      and for furture refernce have a look at the docs => https://firebase.google.com/docs/database/android/read-and-write






      share|improve this answer


























        0












        0








        0







        there exist a child node in "friendlist" which is a random string and you are trying to get data from friendlist node which will off course be null



        and more over even if the data is not null always try to bound the code in a try catch or check if the value is not null. it will not let the app crash at run time.



        and for furture refernce have a look at the docs => https://firebase.google.com/docs/database/android/read-and-write






        share|improve this answer













        there exist a child node in "friendlist" which is a random string and you are trying to get data from friendlist node which will off course be null



        and more over even if the data is not null always try to bound the code in a try catch or check if the value is not null. it will not let the app crash at run time.



        and for furture refernce have a look at the docs => https://firebase.google.com/docs/database/android/read-and-write







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 22 '18 at 23:08









        Har KalHar Kal

        608414




        608414






























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