java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.View.findViewById(int)' on a null object reference

  1. 0

    Android : Fragment error on getview.findviewbyid?

    Stack Overflow | 3 months ago | Android Developer Trainee
    java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.View.findViewById(int)' on a null object reference
  2. 0

    Android: Error on Setting image to imageview in fragment?

    Stack Overflow | 3 months ago | Jithin
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView.setImageResource(int)' on a null object reference
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    Android Error : Listview layout image error while setting another image in code?

    Stack Overflow | 3 months ago | Android Developer Trainee
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView.setImageResource(int)' on a null object reference
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  5. 0

    caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void ... on a null object reference

    Stack Overflow | 2 years ago | Red_X
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.capstone.medicinehealthguide/com.capstone.medicinehealthguide.MenuListActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.View.findViewById(int)' on a null object reference
  6. 0

    create three elements in adapter

    Stack Overflow | 1 year ago | Cheng
    java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.View.findViewById(int)' on a null object reference

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'android.view.View android.view.View.findViewById(int)' on a null object reference

      at com.example.jithin.myapplication.Device_Main.getViews()
    2. com.example.jithin
      Device_Main.onCreateView
      1. com.example.jithin.myapplication.Device_Main.getViews(Device_Main.java:83)
      2. com.example.jithin.myapplication.Device_Main.init(Device_Main.java:66)
      3. com.example.jithin.myapplication.Device_Main.onCreateView(Device_Main.java:58)
      3 frames
    3. Android Support v4
      ViewPager.setCurrentItem
      1. android.support.v4.app.Fragment.performCreateView(Fragment.java:1974)
      2. android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1067)
      3. android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1252)
      4. android.support.v4.app.BackStackRecord.run(BackStackRecord.java:742)
      5. android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1617)
      6. android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:570)
      7. android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141)
      8. android.support.v4.view.ViewPager.populate(ViewPager.java:1177)
      9. android.support.v4.view.ViewPager.setCurrentItemInternal(ViewPager.java:608)
      10. android.support.v4.view.ViewPager.setCurrentItemInternal(ViewPager.java:570)
      11. android.support.v4.view.ViewPager.setCurrentItem(ViewPager.java:551)
      11 frames
    4. android.support.design
      TabLayout$TabView.performClick
      1. android.support.design.widget.TabLayout$ViewPagerOnTabSelectedListener.onTabSelected(TabLayout.java:2008)
      2. android.support.design.widget.TabLayout.selectTab(TabLayout.java:1025)
      3. android.support.design.widget.TabLayout.selectTab(TabLayout.java:995)
      4. android.support.design.widget.TabLayout$Tab.select(TabLayout.java:1272)
      5. android.support.design.widget.TabLayout$TabView.performClick(TabLayout.java:1377)
      5 frames
    5. Android Platform
      Handler.dispatchMessage
      1. android.view.View$PerformClick.run(View.java:21147)
      2. android.os.Handler.handleCallback(Handler.java:739)
      3. android.os.Handler.dispatchMessage(Handler.java:95)
      3 frames