Sorry for the late responds and thanks for quick reply.
I had created a music app. I have put the music URL on CloudStitch’s spreadsheets and by calling from there have to play from the app.There are three sheets on the spread sheet, sheet1 is named Blues, the second sheet is named Funky and sheet3 is named Jzzz.Now the songs of the blues will be on the blues and funky songs will be on the funky and jazz songs will be on jazz.Now I have all three sheets added to the listpicker by category, when click on Blues, then listview (List_blues) is open and the song that I click on there plays the song TaifunPlayer(blues), but when I play a song from sheet 2 (list_funky) then I get an error message.
“Attempt to invoke virtual method ‘int java.lang.Integer.intValue()’ on a null object reference
Note: You will not see another error reported for 5 seconds.”
Here is my screenshot-
Using the component-
Please help …thanks