java.lang.NullPointerException: Attempt to invoke virtual method 'void android.graphics.Canvas.drawCircle(float, float, float, android.graphics.Paint)' on a null object reference

Stack Overflow | Rifat | 4 months ago
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    Stack Overflow | 4 months ago | Rifat
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.graphics.Canvas.drawCircle(float, float, float, android.graphics.Paint)' on a null object reference
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    Stack Overflow | 2 years ago | Jakob
    java.lang.NullPointerException: Attempt to invoke interface method 'void com.example.app.MyRoundRectDrawableWithShadow$RoundRectHelper.drawRoundRect(android.graphics.Canvas, android.graphics.RectF, float, android.graphics.Paint)' on a null object reference

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'void android.graphics.Canvas.drawCircle(float, float, float, android.graphics.Paint)' on a null object reference

      at com.facebook.mahmud.rifat.mahmud.gametester.MainActivity.draw()
    2. com.facebook.mahmud
      MainActivity$1.run
      1. com.facebook.mahmud.rifat.mahmud.gametester.MainActivity.draw(MainActivity.java:84)
      2. com.facebook.mahmud.rifat.mahmud.gametester.MainActivity.access$100(MainActivity.java:11)
      3. com.facebook.mahmud.rifat.mahmud.gametester.MainActivity$1.run(MainActivity.java:63)
      3 frames
    3. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:818)
      1 frame