java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.ActionBar.setBackgroundDrawable(android.graphics.drawable.Drawable)' on a null object reference

Stack Overflow | Almas | 3 months ago
  1. 0

    I get a "NullPointerException" when I'm trying to implement ListView Volley

    Stack Overflow | 3 months ago | Almas
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.ActionBar.setBackgroundDrawable(android.graphics.drawable.Drawable)' on a null object reference
  2. 0

    NullPointerException

    GitHub | 2 years ago | alcntml
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.tmob.deneme/com.xxxx.src.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.ActionBar.setBackgroundDrawable(android.graphics.drawable.Drawable)' on a null object reference
  3. 0

    GitHub comment 69#100831662

    GitHub | 2 years ago | Indiepath
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.ActionBar.setBackgroundDrawable(android.graphics.drawable.Drawable)' on a null object reference
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  5. 0

    how to solve this error in action bar?

    Stack Overflow | 7 months ago | Prabal.PX
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.webzone.allbillpay/com.webzone.allbillpay.LoginActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.ActionBar.setBackgroundDrawable(android.graphics.drawable.Drawable)' on a null object reference
  6. 0

    Null pointer Exception at ActionBar

    Stack Overflow | 2 years ago | User 10
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.qrme.quranmadeeasy/com.qrme.quranmadeeasy.ChapterActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.ActionBar.setBackgroundDrawable(android.graphics.drawable.Drawable)' on a null object reference

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'void android.app.ActionBar.setBackgroundDrawable(android.graphics.drawable.Drawable)' on a null object reference

      at info.androidhive.customlistviewvolley.MainActivity.onCreate()
    2. info.androidhive.customlistviewvolley
      MainActivity.onCreate
      1. info.androidhive.customlistviewvolley.MainActivity.onCreate(MainActivity.java:55)
      1 frame
    3. Android Platform
      Activity.performCreate
      1. android.app.Activity.performCreate(Activity.java:6185)
      1 frame