android – java.lang.NullPointerException on setOnClickListener in Fragment
android – java.lang.NullPointerException on setOnClickListener in Fragment
Open your fragment_blue.xml
layout. Your Button
with id rAFloorGoalUp
needs to be declared in this file.
When it isnt
Button rAFloorGoalUp = (Button) rootView.findViewById(R.id.rAFloorGoalUp);
will be assigned null
and
rAFloorGoalUp.setOnClickListener(...)
will raise a NullPointerException
error.