java.lang.NullPointerException: Attempt to read from field 'int android.hardware.Camera$Size.width' on a null object reference

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    Error while switch camera in android

    Stack Overflow | 4 months ago | akhil batlawala
    java.lang.NullPointerException: Attempt to read from field 'int android.hardware.Camera$Size.width' on a null object reference

    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to read from field 'int android.hardware.Camera$Size.width' on a null object reference

      at akhilbatlawala.selfiecamp.CameraPreview.switchCamera()
    2. akhilbatlawala.selfiecamp
      CameraActivity$2.onClick
      1. akhilbatlawala.selfiecamp.CameraPreview.switchCamera(CameraPreview.java:89)
      2. akhilbatlawala.selfiecamp.CameraActivity.RoteteCamera(CameraActivity.java:408)
      3. akhilbatlawala.selfiecamp.CameraActivity$2.onClick(CameraActivity.java:100)
      3 frames
    3. Android Platform
      ActivityThread.main
      1. android.view.View.performClick(View.java:5609)
      2. android.view.View$PerformClick.run(View.java:22262)
      3. android.os.Handler.handleCallback(Handler.java:751)
      4. android.os.Handler.dispatchMessage(Handler.java:95)
      5. android.os.Looper.loop(Looper.java:154)
      6. android.app.ActivityThread.main(ActivityThread.java:6077)
      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:865)
      2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
      2 frames