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

Stack Overflow | Motaz Ahmed | 6 months ago
tip
Your exception is missing from the Samebug knowledge base.
Here are the best solutions we found on the Internet.
Click on the to mark the helpful solution and get rewards for you help.
  1. 0

    how to open the navigation drawer from a link in a webvew

    Stack Overflow | 6 months ago | Motaz Ahmed
    java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.support.v4.widget.DrawerLayout.findViewById(int)' on a null object reference

    Root Cause Analysis

    1. java.lang.NullPointerException

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

      at com.gedroid.ilprimo3.WebAppInterface.openMenu()
    2. com.gedroid.ilprimo3
      WebAppInterface.openMenu
      1. com.gedroid.ilprimo3.WebAppInterface.openMenu(WebAppInterface.java:95)
      1 frame
    3. org.chromium.base
      SystemMessageHandler.handleMessage
      1. org.chromium.base.SystemMessageHandler.nativeDoRunLoopOnce(Native Method)
      2. org.chromium.base.SystemMessageHandler.handleMessage(SystemMessageHandler.java:53)
      2 frames
    4. Android Platform
      HandlerThread.run
      1. android.os.Handler.dispatchMessage(Handler.java:102)
      2. android.os.Looper.loop(Looper.java:148)
      3. android.os.HandlerThread.run(HandlerThread.java:61)
      3 frames