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bevy / photo-editor-android

Photo Editor SDK contains a lot of features like edit, scale, rotate and draw on images like Instagram stories.
MIT License
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Attempt to invoke virtual method 'void android.graphics.Canvas.drawColor(int, android.graphics.PorterDuff$Mode)' on a null object reference #33

Open kleysonr opened 5 years ago

kleysonr commented 5 years ago

You can use the app sample to simulate the error.

After the photo editor start, if we click on the "Clear All" button as the first action on the editor the following error happen:

2019-05-14 13:17:52.297 11032-11032/com.ahmedadeltito.photoeditor E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.ahmedadeltito.photoeditor, PID: 11032
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.graphics.Canvas.drawColor(int, android.graphics.PorterDuff$Mode)' on a null object reference
        at com.ahmedadeltito.photoeditorsdk.BrushDrawingView.clearAll(BrushDrawingView.java:121)
        at com.ahmedadeltito.photoeditorsdk.PhotoEditorSDK.clearAllViews(PhotoEditorSDK.java:184)
        at com.ahmedadeltito.photoeditor.PhotoEditorActivity.clearAllViews(PhotoEditorActivity.java:216)
        at com.ahmedadeltito.photoeditor.PhotoEditorActivity.onClick(PhotoEditorActivity.java:340)
        at android.view.View.performClick(View.java:6597)
        at android.view.View.performClickInternal(View.java:6574)
        at android.view.View.access$3100(View.java:778)
        at android.view.View$PerformClick.run(View.java:25885)
        at android.os.Handler.handleCallback(Handler.java:873)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:193)
        at android.app.ActivityThread.main(ActivityThread.java:6669)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Himanshu507 commented 5 years ago

hey man i can't complie that library can u send me your working project

kleysonr commented 5 years ago

I dont have the project anymore, I was just testing the lib.

But I created a new project and copied and pasted any code, file and configuration from the sample to my project to get it working :(

Himanshu507 commented 5 years ago

Hey do you have any photo editing project? Because i'm facing problems in this area.

kleysonr commented 5 years ago

Sorry, I dont.

mrabelwahed commented 4 years ago

@kleysonr
please update this method void clearAll() { if(drawCanvas!=null){ drawCanvas.drawColor(0, PorterDuff.Mode.CLEAR); invalidate(); }

}

in BrushDrawingView class and it will fix it