this is my source:
Sub Activity_Create(FirstTime As Boolean)
    zxslv.Initialize("zxslv")
    If FirstTime Then
        Printer1.Initialize(Me, "Printer1")
    End If
    If CheckConnection Then
        ExecuteRemoteQuery("SELECT selisihjam,aktif FROM version", select_db)
    Else
        MsgboxAsync("Perangkat tidak tersambung ke Internet", "Ada kesalahan")
        Activity.Finish
    End If
End Sub
when I build APK at old pc (celeron 4gb), the result is running well at my android device
but can not run when I rebuild it with my new pc (i7 16gb)
after I make remark like this:
Sub Activity_Create(FirstTime As Boolean)
    'zxslv.Initialize("zxslv")
    If FirstTime Then
        Printer1.Initialize(Me, "Printer1")
    End If
    If CheckConnection Then
        ExecuteRemoteQuery("SELECT selisihjam,aktif FROM version", select_db)
    Else
        MsgboxAsync("Perangkat tidak tersambung ke Internet", "Ada kesalahan")
        Activity.Finish
    End If
End Sub
then I build APK with my new pc (i7 16gb), the APK result can running at my Android device,
but can not make scan barcode at other module
the question is: may be need to change at my source or setting at my manifest:
'This code will be applied to the manifest file during compilation.
'You do not need to modify it in most cases.
'See this link for for more information: 
http://www.b4x.com/forum/showthread.php?p=78136
'<uses-sdk android:minSdkVersion="4" android:targetSdkVersion="22"/>
AddManifestText(
<uses-sdk android:minSdkVersion="20" android:targetSdkVersion="31"/>
<supports-screens android:largeScreens="true" 
    android:normalScreens="true" 
    android:smallScreens="true" 
    android:anyDensity="true"/>)
AddManifestText(<uses-feature android:name="android.hardware.camera" android:required="false" />)
AddManifestText(<uses-feature android:name="android.hardware.camera.autofocus" android:required="false" />)
AddManifestText(<uses-feature android:name="android.hardware.camera.flash" android:required="false" />)
AddApplicationText(<activity android:name="com.jaknet.rumahparfum"
            android:screenOrientation="landscape"
            android:configChanges="keyboardHidden|orientation|screenSize"
            android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
            android:windowSoftInputMode="stateAlwaysHidden">
        </activity>)
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")
SetApplicationAttribute(android:usesCleartextTraffic, "true")
AddManifestText(<uses-permission
    android:name="android.permission.WRITE_EXTERNAL_STORAGE"
    android:maxSdkVersion="18" />)
AddApplicationText(
  <provider
  android:name="android.support.v4.content.FileProvider"
  android:authorities="$PACKAGE$.provider"
  android:exported="false"
  android:grantUriPermissions="true">
  <meta-data
  android:name="android.support.FILE_PROVIDER_PATHS"
  android:resource="@xml/provider_paths"/>
  </provider>)
CreateResource(xml, provider_paths,
   <files-path name="name" path="shared" />)
AddPermission("android.permission.ACCESS_NOTIFICATION_POLICY")
AddPermission("android.permission.PERMISSION_READ_PHONE_STATE")
AddPermission("android.permission.CAMERA")
AddPermission("android.permission.FLASHLIGHT")
AddPermission("android.hardware.camera")
Sorry about not complete the information, because I do not know what happen about my computer setting or my b4a setting?
Please advice me
Thankyou
Regards
kilat kosasih