java.lang.NullPointerException

Attempt to invoke virtual method 'void android.hardware.Camera.unlock()' on a null object reference

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Solutions on the web21038

  • via Stack Overflow by mandy Yiu
    , 8 months ago
    Attempt to invoke virtual method 'void android.hardware.Camera.unlock()' on a null object reference
  • via Stack Overflow by user6650650
    , 11 months ago
    Attempt to invoke virtual method 'void android.hardware.Camera.unlock()' on a null object reference
  • via GitHub by B--B
    , 1 year ago
    Attempt to invoke virtual method 'void android.support.v7.widget.SearchView.setImeOptions(int)' on a null object reference
  • Stack trace

    • java.lang.NullPointerException: Attempt to invoke virtual method 'void android.hardware.Camera.unlock()' on a null object reference at com.myapplication.CamPreview.prepareVideoRecorder(CamPreview.java:100) at com.myapplication.CamPreview.access$500(CamPreview.java:20) at com.myapplication.CamPreview$1.onClick(CamPreview.java:60) at android.view.View.performClick(View.java:4756) at android.view.View$PerformClick.run(View.java:19761) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5264) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:900) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:695)

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