java.lang.NullPointerException: Attempt to invoke virtual method 'org.opencv.core.Mat org.opencv.core.Mat.submat(org.opencv.core.Rect)' on a null object reference

Stack Overflow | Shulz | 2 months ago
  1. 0

    Android Opencv Submat null object reference

    Stack Overflow | 2 months ago | Shulz
    java.lang.NullPointerException: Attempt to invoke virtual method 'org.opencv.core.Mat org.opencv.core.Mat.submat(org.opencv.core.Rect)' on a null object reference
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    Shared element activity transition on android 5

    Stack Overflow | 2 years ago | TjerkW
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.ViewGroup.transformMatrixToGlobal(android.graphics.Matrix)' on a null object reference
  3. 0

    [Crash Log] Thu, 04 Dec 2014 01:28:44 GMT

    GitHub | 2 years ago | blFeedbackBot
    java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.view.Window.getAllowExitTransitionOverlap()' on a null object reference
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  5. 0

    [Crash Log] Fri, 26 Dec 2014 00:56:16 GMT

    GitHub | 2 years ago | blFeedbackBot
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.ViewGroup.transformMatrixToGlobal(android.graphics.Matrix)' on a null object reference
  6. 0

    [Crash Log] Wed, 21 Jan 2015 22:55:33 GMT

    GitHub | 2 years ago | blFeedbackBot
    java.lang.NullPointerException: Attempt to invoke virtual method 'int info.papdt.blacklight.model.MessageListModel.getSize()' on a null object reference

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'org.opencv.core.Mat org.opencv.core.Mat.submat(org.opencv.core.Rect)' on a null object reference

      at com.example.backup.contour_image.MainActivity.onTouch()
    2. com.example.backup
      MainActivity.onTouch
      1. com.example.backup.contour_image.MainActivity.onTouch(MainActivity.java:103)
      1 frame
    3. Android Platform
      ViewGroup.dispatchTouchEvent
      1. android.view.View.dispatchTouchEvent(View.java:9406)
      2. android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2668)
      3. android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2257)
      4. android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2668)
      5. android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2257)
      6. android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2668)
      7. android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2257)
      8. android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2668)
      9. android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2257)
      9 frames