java.lang.IllegalStateException: Could not execute method for android:onClick

Stack Overflow | Sebastian | 3 months ago
  1. 0

    Null Pointer Exception while populating a ListAdapter

    Stack Overflow | 3 months ago | Sebastian
    java.lang.IllegalStateException: Could not execute method for android:onClick
  2. 0
    Use 'dialog' to access views from custom_layout layout.
  3. 0

    Unable to Retrieve Json

    Stack Overflow | 2 years ago
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ListView.setAdapter(android.widget.ListAdapter)' on a null object reference
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  5. 0

    NullPointerException navigationDrawer and tabs in android

    Stack Overflow | 2 years ago | Dusan Dimitrijevic
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.dusandimitrijevic.spisakzakupovinu/com.dusandimitrijevic.spisakzakupovinu.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ListView.setAdapter(android.widget.ListAdapter)' on a null object reference
  6. 0

    Problème de listAdapter

    developpez.net | 1 year ago
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ListView.setAdapter(android.widget.ListAdapter)' on a null object reference

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'void android.widget.ListView.setAdapter(android.widget.ListAdapter)' on a null object reference

      at clausing.sebastian.de.eztimer.MainActivity.readDB()
    2. clausing.sebastian.de
      MainActivity.readDB
      1. clausing.sebastian.de.eztimer.MainActivity.readDB(MainActivity.java:114)
      1 frame
    3. Java RT
      Method.invoke
      1. java.lang.reflect.Method.invoke(Native Method)
      1 frame
    4. Android v7
      AppCompatViewInflater$DeclaredOnClickListener.onClick
      1. android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:284)
      1 frame
    5. Android Platform
      ActivityThread.main
      1. android.view.View.performClick(View.java:5204)
      2. android.view.View$PerformClick.run(View.java:21158)
      3. android.os.Handler.handleCallback(Handler.java:739)
      4. android.os.Handler.dispatchMessage(Handler.java:95)
      5. android.os.Looper.loop(Looper.java:148)
      6. android.app.ActivityThread.main(ActivityThread.java:5461)
      6 frames
    6. Java RT
      Method.invoke
      1. java.lang.reflect.Method.invoke(Native Method)
      1 frame
    7. Android
      ZygoteInit$MethodAndArgsCaller.run
      1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
      1 frame