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yuriy-budiyev / code-scanner

Code scanner library for Android, based on ZXing
MIT License
1.1k stars 267 forks source link

Null pointer Exception at line 24 #163

Closed surajsahani closed 2 years ago

surajsahani commented 2 years ago

2022-06-13 17:12:44.766 6174-6174/com.martial.salaryup E/AndroidRuntime: FATAL EXCEPTION: main Process: com.martial.salaryup, PID: 6174 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.martial.salaryup/com.martial.salaryup.ScanActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.SurfaceView com.budiyev.android.codescanner.CodeScannerView.getPreviewView()' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2594) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2685) at android.app.ActivityThread.access$900(ActivityThread.java:188) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1530) at android.os.Handler.dispatchMessage(Handler.java:111) at android.os.Looper.loop(Looper.java:210) at android.app.ActivityThread.main(ActivityThread.java:5839) 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:1113) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:879) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.SurfaceView com.budiyev.android.codescanner.CodeScannerView.getPreviewView()' on a null object reference at com.budiyev.android.codescanner.CodeScanner.(CodeScanner.java:144)

yuriy-budiyev commented 2 years ago

Seems like you passed null 'view' paramenter in CodeScanner constructor.