Unable to get data from sqlite database

Question

The problem is that when I run my code the app is stopping with an error (java.lang.RuntimeException: Unable to start activity ComponentInfo{com.twixt.pranav.pos/com.twixt.p

Answer 1

Your param passed to SQLiteHelper is null. You can get the activity context once the fragment is attached to the activity.

Check the lifecycle of fragment https://developer.android.com/guide/components/fragments.html

Change

private val database: SQLiteHelper = SQLiteHelper(activity)

to

private var database: SQLiteHelper? = null

Overide onAttach in Fragment and initialize database

database = SQLiteHelper(activity)

https://developer.android.com/reference/android/app/Fragment.html#onAttach(android.app.Activity)