java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.widget.Toolbar.setBackgroundColor(int)' on a null object reference

Stack Overflow | Roy | 1 month ago
tip
Do you know that we can give you better hits? Get more relevant results from Samebug’s stack trace search.
  1. 0

    Toolbar come null in Fragment while trying to change colour of it

    Stack Overflow | 1 month ago | Roy
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.widget.Toolbar.setBackgroundColor(int)' on a null object reference
  2. 0

    changing the color of a fragment on a button click

    Stack Overflow | 1 month ago | phoenixshiv
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View.setBackgroundColor(int)' on a null object reference
  3. 0

    Open Navigation Drawer with layout on click event

    Stack Overflow | 1 year ago | Marco ShepMonkey De Rossi
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v4.widget.DrawerLayout.openDrawer(android.view.View)' on a null object reference
  4. Speed up your debug routine!

    Automated exception search integrated into your IDE

  5. 0

    How can i fix my null pointer exception

    Stack Overflow | 1 year ago | Dale
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ArrayAdapter.add(java.lang.Object)' on a null object reference
  6. 0

    Using two camera preview framelayout in same activity.Error in moving from one preview to another

    Stack Overflow | 2 weeks ago | Suman Astani
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.FrameLayout.addView(android.view.View)' 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.v7.widget.Toolbar.setBackgroundColor(int)' on a null object reference

      at com.example.xinthe.viewpagerdemo.FirstFragment.setToolbarColour()
    2. com.example.xinthe
      MainActivity.onClick
      1. com.example.xinthe.viewpagerdemo.FirstFragment.setToolbarColour(FirstFragment.java:67)
      2. com.example.xinthe.viewpagerdemo.MainActivity.onClick(MainActivity.java:99)
      2 frames
    3. Android Platform
      ActivityThread.main
      1. android.view.View.performClick(View.java:5612)
      2. android.view.View$PerformClick.run(View.java:22285)
      3. android.os.Handler.handleCallback(Handler.java:751)
      4. android.os.Handler.dispatchMessage(Handler.java:95)
      5. android.os.Looper.loop(Looper.java:154)
      6. android.app.ActivityThread.main(ActivityThread.java:6123)
      6 frames
    4. Java RT
      Method.invoke
      1. java.lang.reflect.Method.invoke(Native Method)
      1 frame
    5. Android
      ZygoteInit.main
      1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
      2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:757)
      2 frames