java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v4.widget.DrawerLayout.closeDrawer(int)' on a null object reference

Stack Overflow | Shantu Das | 2 months ago
  1. 0

    Android Navigation Drawer with sliding TabView

    Stack Overflow | 2 months ago | Shantu Das
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v4.widget.DrawerLayout.closeDrawer(int)' on a null object reference
  2. 0

    Android Drawer items not working

    Stack Overflow | 8 months ago | Imran Aslam
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v4.widget.DrawerLayout.closeDrawer(int)' on a null object reference
  3. 0

    Single mode enabled causes a crash on start

    GitHub | 1 year ago | Alexendoo
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v4.widget.DrawerLayout.setDrawerLockMode(int, int)' on a null object reference
  4. Speed up your debug routine!

    Automated exception search integrated into your IDE

  5. 0

    onActivityResult in ViewPager fragment crash

    Stack Overflow | 2 years ago | Tung Mai Le
    java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=196610, result=0, data=Intent { }} to activity {com.mycom.android.myapp.debug/com.mycom.android.myapp.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v4.app.Fragment.onActivityResult(int, int, android.content.Intent)' on a null object reference
  6. 0

    Crash on startup

    GitHub | 1 year ago | Alexendoo
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v4.widget.DrawerLayout.setDrawerLockMode(int, int)' on a null object reference

    Not finding the right solution?
    Take a tour to get the most out of Samebug.

    Tired of useless tips?

    Automated exception search integrated into your IDE

    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'void android.support.v4.widget.DrawerLayout.closeDrawer(int)' on a null object reference

      at com.example.user.navwithtab.MainActivity.onNavigationItemSelected()
    2. com.example.user
      MainActivity.onNavigationItemSelected
      1. com.example.user.navwithtab.MainActivity.onNavigationItemSelected(MainActivity.java:157)
      1 frame
    3. android.support.design
      NavigationView$1.onMenuItemSelected
      1. android.support.design.widget.NavigationView$1.onMenuItemSelected(NavigationView.java:153)
      1 frame
    4. android.support.v7
      MenuBuilder.performItemAction
      1. android.support.v7.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:810)
      2. android.support.v7.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:152)
      3. android.support.v7.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:957)
      3 frames
    5. android.support.design
      NavigationMenuPresenter$1.onClick
      1. android.support.design.internal.NavigationMenuPresenter$1.onClick(NavigationMenuPresenter.java:328)
      1 frame
    6. Android Platform
      Looper.loop
      1. android.view.View.performClick(View.java:5198)
      2. android.view.View$PerformClick.run(View.java:21147)
      3. android.os.Handler.handleCallback(Handler.java:739)
      4. android.os.Handler.dispatchMessage(Handler.java:95)
      5. android.os.Looper.loop(Looper.java:148)
      5 frames