java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.RelativeLayout.setVisibility(int)' on a null object reference

Stack Overflow | adler jawad | 3 months ago
  1. 0

    Android - How can I access a RelativeLayout instantiated in onCreateView() from an other method in a Fragment

    Stack Overflow | 3 months ago | adler jawad
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.RelativeLayout.setVisibility(int)' on a null object reference
  2. 0
    Initialize the variable before calling a method on it.
  3. 0
    Use 'dialog' to access views from custom_layout layout.
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  5. 0

    PreviewService rootview null if the service is created from the background

    GitHub | 2 years ago | gennadiiivanov
    java.lang.RuntimeException: Unable to start service io.intercom.android.sdk.preview.PreviewService@3a483d97 with Intent { cmp=com.livestream.livestream/io.intercom.android.sdk.preview.PreviewService }: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.RelativeLayout.setVisibility(int)' on a null object reference
  6. 0

    BringToFront Force Closes the application

    Stack Overflow | 3 years ago | Abhishek K Gowda
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.cartperk.android.cartperk/com.cartperk.android.cartperk.ui.CameraActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.RelativeLayout.setVisibility(int)' on a null object reference

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'void android.widget.RelativeLayout.setVisibility(int)' on a null object reference

      at Fragments.VerbFragment.backButtonWasPressed()
    2. Fragments
      VerbFragment.backButtonWasPressed
      1. Fragments.VerbFragment.backButtonWasPressed(VerbFragment.java:258)
      1 frame
    3. Activitys
      MainActivity2.onBackPressed
      1. Activitys.MainActivity2.onBackPressed(MainActivity2.java:136)
      1 frame