Android Question Capture back key in B4XPages

[beltrao73]

Hi,

I would like to capture back key do other things, rather than closing the app

I tried this code:

Sub B4XPage_CloseRequest As ResumableSub
   Return False
End Sub

But got this error:

Error occurred on line: 504 (B4XPagesManager)
java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.keywords.Common.CallSubDebug(Common.java:1050)
at tecsoft.ArgosGerente.b4xpagesmanager$ResumableSub_HandleCloseRequest.resume(b4xpagesmanager.java:814)
at tecsoft.ArgosGerente.b4xpagesmanager._handlecloserequest(b4xpagesmanager.java:784)
at tecsoft.ArgosGerente.b4xpagesmanager._activity_keypress(b4xpagesmanager.java:542)
at tecsoft.ArgosGerente.b4xpagesdelegator._activity_keypress(b4xpagesdelegator.java:66)
at tecsoft.ArgosGerente.main._activity_keypress(main.java:435)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:351)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
at tecsoft.ArgosGerente.main$HandleKeyDelayed.runDirectly(main.java:231)
at tecsoft.ArgosGerente.main$HandleKeyDelayed.run(main.java:228)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:241)
at android.app.ActivityThread.main(ActivityThread.java:7582)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:941)
Caused by: java.lang.RuntimeException: java.lang.Exception: Sub B4XPage_CloseRequest was not found.
at anywheresoftware.b4a.debug.Debug.CallSub4(Debug.java:336)
at anywheresoftware.b4a.debug.Debug.CallSubNew(Debug.java:282)
... 22 more
Caused by: java.lang.Exception: Sub B4XPage_CloseRequest was not found.
at anywheresoftware.b4a.debug.Debug.CallSub4(Debug.java:326)

______________

 

[Brian Dean]

Sub B4XPage_CloseRequest As ResumableSub
   Return False
End Sub

I don't think that there is anything wrong with this code; I have used it myself. The error is ocurring in B4XPagesManager so it is possible that it is being caused by something else, like an uninitialised object. Maybe someone else can read more from the log message.

 

[Erel]

Try to clean the project (Ctrl + P).

 

[beltrao73]

That Worked! thanks Erel

Try to clean the project (Ctrl + P).