java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=65537, result=-1, data=Intent { dat=content: flg=0x1 }} to activity {com.tomhogenkamp.personalcalc/com.tomhogenkamp.personalcalc.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.Context android.support.v4.app.FragmentActivity.getApplicationContext()' on a null object reference

Stack Overflow | tomhogenkamp | 6 months ago
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    Why does getActivity returns null in Fragment in ViewPager?

    Stack Overflow | 6 months ago | tomhogenkamp
    java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=65537, result=-1, data=Intent { dat=content: flg=0x1 }} to activity {com.tomhogenkamp.personalcalc/com.tomhogenkamp.personalcalc.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.Context android.support.v4.app.FragmentActivity.getApplicationContext()' on a null object reference

    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'android.content.Context android.support.v4.app.FragmentActivity.getApplicationContext()' on a null object reference

      at com.tomhogenkamp.personalcalc.CalculatorFragment.setBackground()
    2. com.tomhogenkamp.personalcalc
      SettingsFragment.onActivityResult
      1. com.tomhogenkamp.personalcalc.CalculatorFragment.setBackground(CalculatorFragment.java:558)
      2. com.tomhogenkamp.personalcalc.MainActivity.newMessage(MainActivity.java:69)
      3. com.tomhogenkamp.personalcalc.SettingsFragment.onActivityResult(SettingsFragment.java:118)
      3 frames
    3. Android Support v4
      FragmentActivity.onActivityResult
      1. android.support.v4.app.FragmentActivity.onActivityResult(FragmentActivity.java:165)
      1 frame
    4. Android Platform
      ActivityThread.deliverResults
      1. android.app.Activity.dispatchActivityResult(Activity.java:6467)
      2. android.app.ActivityThread.deliverResults(ActivityThread.java:4009)
      2 frames