java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView.setDrawingCacheEnabled(boolean)' on a null object reference

Stack Overflow | DipanIns | 5 months ago
  1. 0

    Sharing an image from RecyclerView

    Stack Overflow | 5 months ago | DipanIns
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView.setDrawingCacheEnabled(boolean)' on a null object reference
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    The resource was accessed after it was dismissed.
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    Use 'dialog' to access views from custom_layout layout.
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    The parsed JSON does not contains the requested field.
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    Initialize the variable before calling a method on it.

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'void android.widget.ImageView.setDrawingCacheEnabled(boolean)' on a null object reference

      at com.myapp.app.DataAdapter$1.onClick()
    2. com.myapp.app
      DataAdapter$1.onClick
      1. com.myapp.app.DataAdapter$1.onClick(DataAdapter.java:60)
      1 frame
    3. Android Platform
      ActivityThread.main
      1. android.view.View.performClick(View.java:5232)
      2. android.view.View$PerformClick.run(View.java:21289)
      3. android.os.Handler.handleCallback(Handler.java:739)
      4. android.os.Handler.dispatchMessage(Handler.java:95)
      5. android.os.Looper.loop(Looper.java:168)
      6. android.app.ActivityThread.main(ActivityThread.java:5885)
      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:797)
      2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:687)
      2 frames