Android Question B4X pages issue with B4XPage_Appear - clearing a field causes error.

MrKim

Well-Known Member
Licensed User
I added the following code to a b4xpage:
B4X:
Sub B4XPage_Appear
    NameET.Text = "": NameET.enabled = False
    CreateGroupBtn.Enabled = False
End Sub
to insure these fields get cleared when entered. The fileds are added in designer. and the layout is loaded immediately in B4XPage_Created:
B4X:
'This event will be called once, before the page becomes visible.
Private Sub B4XPage_Created (Root1 As B4XView)
    Root = Root1
    'load the layout to Root
    Root.LoadLayout("CreateGroup")
    toast.Initialize(Root)
End Sub
'
This results in the following error the FIRST Time the page is open:
B4X:
Unexpected event (missing RaiseSynchronousEvents): nameet_textchanged
Check the unfiltered logs for the full stack trace.
Create Group
** Activity (main) Pause event (activity is not paused). **
** Service (starter) Destroy (ignored)**
Full Log:
B4X:
@ 244431.713: [Significant Motion] Stop accel
event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
SSL shutdown failed: ssl=0x7b0b6b0d88: I/O error during system call, Connection reset by peer
Failed to read from logcat: Success
Haven't get first sync notification for 300 seconds.
Unexpected event (missing RaiseSynchronousEvents): nameet_textchanged
Check the unfiltered logs for the full stack trace.
java.lang.Exception: Stack trace
    at java.lang.Thread.dumpStack(Thread.java:1513)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:314)
    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 anywheresoftware.b4a.objects.EditTextWrapper$1.afterTextChanged(EditTextWrapper.java:83)
    at android.widget.TextView.sendAfterTextChanged(TextView.java:10566)
    at android.widget.TextView.setText(TextView.java:6283)
    at android.widget.TextView.setText(TextView.java:6102)
    at android.widget.EditText.setText(EditText.java:122)
    at android.widget.TextView.setText(TextView.java:6054)
    at anywheresoftware.b4a.objects.TextViewWrapper.setText(TextViewWrapper.java:39)
    at anywheresoftware.b4a.objects.B4XViewWrapper.setText(B4XViewWrapper.java:226)
    at b4a.example.pagecreatenewgroup._b4xpage_appear(pagecreatenewgroup.java:70)
    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:348)
    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 anywheresoftware.b4a.BA$2.run(BA.java:387)
    at android.os.Handler.handleCallback(Handler.java:883)
    at android.os.Handler.dispatchMessage(Handler.java:100)
    at android.os.Looper.loop(Looper.java:214)
    at android.app.ActivityThread.main(ActivityThread.java:7356)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
Failed to read from logcat: Success
record : No data points in metrics event
event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
I tried using AddPageAndCreate
B4X:
        CreateNewGroup.Initialize
        B4XPages.AddPageAndCreate("CreateNewGroup", CreateNewGroup)
        Sleep(1)
        B4XPages.MainPage.AddOrEdit.AddOrEditMode = "Create Group"
        B4XPages.ShowPage("CreateNewGroup")
But it made no difference.
 

lucasheer

Active Member
Licensed User
Try to add the event sub nameet_textchanged

I think the signature is
sub nameet_TextChanged (Old As String, New As String)
 
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