Bug? Bitmap Initialize do not work in debug mode

[Victor Pavlov]

This code works fine in release mode.
The same crashes in debug mode.

MyBitmap.Initialize("", "")
Return MyBitmap

This code was used from B4A version 3.20 and worked fine in 3 our products.
We always used Legacy Debugger, now switching to new one.

Output is:
Error occurred on line: 679 (Configuration)
java.io.FileNotFoundException: /: open failed: EISDIR (Is a directory)
at libcore.io.IoBridge.open(IoBridge.java:416)
at java.io.FileInputStream.<init>(FileInputStream.java:78)
at anywheresoftware.b4a.objects.streams.File.OpenInput(File.java:209)
at anywheresoftware.b4a.objects.drawable.CanvasWrapper$BitmapWrapper.Initialize(CanvasWrapper.java:498)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.shell.Shell.runVoidMethod(Shell.java:742)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:342)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:246)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:134)
at anywheresoftware.b4a.debug.Debug.delegate(Debug.java:262)
at microinvest.Restaurant.configuration._loadbitmapex(configuration.java:752)
at microinvest.Restaurant.main._activity_create(main.java:484)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:697)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:339)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:246)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:134)
at microinvest.Restaurant.main.afterFirstLayout(main.java:102)
at microinvest.Restaurant.main.access$000(main.java:17)
at microinvest.Restaurant.main$WaitForLayout.run(main.java:80)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5041)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
at dalvik.system.NativeStart.main(Native Method)
Caused by: libcore.io.ErrnoException: open failed: EISDIR (Is a directory)
at libcore.io.IoBridge.open(IoBridge.java:405)
... 34 more

 

[sorex]

you need to supply a file.

it fails in debug and release mode here which is normal since it can't find any file.

 

[Victor Pavlov]

In release mode is working fine.
In debug mode crashesh.

How can I create empty bitmap?

 

[sorex]

I think you are confusing bitmap with canvas.

 

[Victor Pavlov]

Please, advice!
This code was working for last 2 years.

Public Sub LoadBitmapEx(MyFile As String) As Bitmap
dim s as String

s = MyFile & ".jpg"
If File.Exists(File.DirAssets, s) Then 
MyBitmap = LoadBitmap(File.DirAssets, s)
else
MyBitmap.Initialize("", "")
End If

Return MyBitmap

 

[Erel]

This code is wrong. You need to supply a file. This is not the way to create an empty bitmap.

You can use Bitmap.InitializeMutable to create an "empty" bitmap.