Kast2k

Problem was fixed by addition 2 new TTimer for async calls of TJNASC.Stop and TJNASC.Start parsing by HW scanner. Topic can be closed.

Good day, dear colleagues! I'm writing a software for QR data parsing from Honeywell CT50 (Android 6). I'm sorry for may be big lists of code but i was simplifiying as much as possible. Main form: TMainForm = class(TForm) Label1: TLabel; btnSaveToStore: TButton; procedure FormCreate(Sender: TObject); private { Private declarations } FAutomaticMode:Boolean; procedure ActivateScanner; public property AutomaticMode: Boolean read FAutomaticMode write FAutomaticMode; procedure onBarCodeCompleteThreadSwitcher; procedure onBarCodeFailThreadSwitcher; procedure ShowInformationMessage(const AText:string); { Public declarations } end; uses FMX.Helpers.Android, Androidapi.NativeActivity, Androidapi.JNI.Widget, formScanTakeOnStore, PSTypes, PSVars; procedure TMainForm.ActivateScanner; begin RegisterDelphiNativeMethods; TJNASC.Activate; Log.d('Scanner ready'); end; procedure TMainForm.btnSaveToStoreClick(Sender: TObject); begin Barcode.DelayInSeconds:=2; frmScanTakeOnStore:=TfrmScanTakeOnStore.Create(Application); //is it correct declaration or may be i need Free on Close? frmScanTakeOnStore.Show; end; procedure TMainForm.FormCreate(Sender: TObject); begin Barcode:=TBarcode.Create; Barcode.DelayInSeconds:=2; ActivateScanner; end; procedure TMainForm.onBarCodeCompleteThreadSwitcher; begin if AutomaticMode then TJNASC.Start else TJNASC.Stop; end; procedure TMainForm.onBarCodeFailThreadSwitcher; begin end; procedure TMainForm.ShowInformationMessage(const AText: string); begin CallInUiThread ( procedure begin TJToast.JavaClass.makeText (TAndroidHelper.Context, StrToJCharSequence(AText), TJToast.JavaClass.LENGTH_LONG).show; end ); end; PSTypes unit PSTypes; interface uses System.SysUtils, System.Types, System.UITypes, System.Classes, System.Variants, FMX.Types, FMX.Controls, FMX.Forms, FMX.Graphics, FMX.Dialogs, FMX.ScrollBox, FMX.Memo, FMX.Controls.Presentation, FMX.StdCtrls, Androidapi.JNI.App, Androidapi.JNI, Androidapi.JNIBridge, Androidapi.JNI.JavaTypes, DateUtils, System.Character; type JNativeActivitySubclass = interface; JNativeActivitySubclassClass = interface(JActivityClass) ['{361C7073-E0A2-4A0D-B5E4-8403E5214275}'] {Methods} //function init: JFMXNativeActivity; cdecl; end; [JavaSignature('com/winarhi/nativeactivitysubclass/NativeActivitySubclass')] JNativeActivitySubclass = interface(JActivity) ['{7141B1C4-508D-46F3-A767-E0BFCE22C9CE}'] {Methods} // procedure WA_75e_DoScan(paramBoolean :JBoolean); procedure WA_75e_Create_aidcManager; procedure WA_75e_Destroy_aidcManager; procedure WA_75eStart; procedure WA_75eStop; end; TJNativeActivitySubclass = class(TJavaGenericImport<JNativeActivitySubclassClass, JNativeActivitySubclass>) public procedure Activate; procedure DeActivate; procedure Start; procedure Stop; end; TBarcodeData=record end; TBarcodeResult=procedure(const BarcodeData:TBarcodeData) of object; TBarcode=class private FBarcodeData : TBarcodeData; FOnBarcodeResult : TBarcodeResult; procedure SetReceivedBarcodeData(const Value: string); public property OnBarcodeResult: TBarcodeResult read FOnBarcodeResult write FOnBarcodeResult; end; procedure RegisterDelphiNativeMethods; implementation uses FMX.Helpers.Android, Androidapi.NativeActivity, PSVars, formMain; { TJNativeActivitySubclass } procedure onBarCodeCompleteNative(PEnv: PJNIEnv; This: JNIObject; BarCode: JNIString); cdecl; begin PSVars.Barcode.ReceivedBarcodeData := JNIStringToString(PEnv, BarCode); TThread.Synchronize(TThread.CurrentThread, MainForm.onBarCodeCompleteThreadSwitcher); end; procedure onBarCodeFailNative(PEnv: PJNIEnv; This: JNIObject; BarCode: JNIString); cdecl; begin TThread.Synchronize(TThread.CurrentThread, MainForm.onBarCodeFailThreadSwitcher); end; procedure RegisterDelphiNativeMethods; var PEnv: PJNIEnv; ActivityClass: JNIClass; NativeMethods: array[0..1] of JNINativeMethod; begin Log.d('Starting the registration JNI stuff'); PEnv := TJNIResolver.GetJNIEnv; Log.d('Registering interop methods'); NativeMethods[0].Name := 'onBarCodeCompleteNative'; NativeMethods[0].Signature := '(Ljava/lang/String;)V'; NativeMethods[0].FnPtr := @onBarCodeCompleteNative; NativeMethods[1].Name := 'onBarCodeFailNative'; NativeMethods[1].Signature := '()V'; NativeMethods[1].FnPtr := @onBarCodeFailNative; ActivityClass := PEnv^.GetObjectClass( PEnv, PANativeActivity(System.DelphiActivity).clazz); PEnv^.RegisterNatives(PEnv, ActivityClass, @NativeMethods[0], 2); PEnv^.DeleteLocalRef(PEnv, ActivityClass); Log.d('Interop Methods Registered'); end; procedure TJNativeActivitySubclass.Activate; begin Wrap(PANativeActivity(System.DelphiActivity)^.clazz).WA_75e_Create_aidcManager; end; procedure TJNativeActivitySubclass.DeActivate; begin Wrap(PANativeActivity(System.DelphiActivity)^.clazz).WA_75e_Destroy_aidcManager; end; procedure TJNativeActivitySubclass.Start; begin Wrap(PANativeActivity(System.DelphiActivity)^.clazz).WA_75eStart; end; procedure TJNativeActivitySubclass.Stop; begin Wrap(PANativeActivity(System.DelphiActivity)^.clazz).WA_75eStop; end; end. PSVars unit PSVars; interface uses PSTypes ; var Barcode:TBarcode; TJNASC:TJNativeActivitySubclass; implementation end. formScanTakeOnStore unit formScanTakeOnStore; interface uses System.SysUtils, System.Types, System.UITypes, System.Classes, System.Variants, FMX.Types, FMX.Controls, FMX.Forms, FMX.Graphics, FMX.Dialogs, FMX.Controls.Presentation, FMX.StdCtrls, FMX.ScrollBox, FMX.Memo, Androidapi.JNI.App, Androidapi.JNI, Androidapi.JNIBridge, Androidapi.JNI.JavaTypes, Androidapi.Helpers, FMX.DialogService, System.Rtti, FMX.Grid.Style, FMX.Grid, FMX.TextLayout, DateUtils, PSTypes, FMX.Objects; type TfrmScanTakeOnStore = class(TForm) Label1: TLabel; btnFinish: TButton; Panel1: TPanel; Panel2: TPanel; Panel3: TPanel; btnContinuous: TButton; btnManual: TButton; Panel4: TPanel; lblReceived: TLabel; StyleBook1: TStyleBook; btnTable: TButton; lblMaterial: TLabel; lblBankaCounts: TLabel; lblTotalLeft: TLabel; tmrSleep: TTimer; rectStatus: TRectangle; Button1: TButton; procedure btnFinishClick(Sender: TObject); procedure FormShow(Sender: TObject); procedure btnContinuousClick(Sender: TObject); procedure btnManualClick(Sender: TObject); procedure btnTableClick(Sender: TObject); procedure tmrSleepTimer(Sender: TObject); procedure Button1Click(Sender: TObject); private { Private declarations } FNewDataExist:Boolean; BarcodeData:TBarcodeData; procedure OnBarcodeResult(const ABarcodeData:TBarcodeData); procedure CloseFrm(Sender: TObject; const AResult: TModalResult); procedure MaterialAddedNG(Sender: TObject; const AResult: TModalResult); procedure MaterialAddedOK(Sender: TObject; const AResult: TModalResult); procedure StopScannerAndColor(CL:Cardinal); public { Public declarations } end; var frmScanTakeOnStore: TfrmScanTakeOnStore; implementation uses FMX.Helpers.Android, Androidapi.NativeActivity, formScanComplete, dmData, formAgreeAction, formScanTakeOnStoreTable, PSVars, formMain; {$R *.fmx} procedure TfrmScanTakeOnStore.btnContinuousClick(Sender: TObject); begin TJNASC.Start; btnContinuous.StyleLookup:='btnContinuousStyle1'; btnManual.StyleLookup:=''; MainForm.AutomaticMode:=True; MainForm.ShowInformationMessage('Automatic mode'); end; procedure TfrmScanTakeOnStore.btnFinishClick(Sender: TObject); begin // MainForm.SayTextToSpeech('Stop data reading process and exit?'); TDialogService.MessageDialog( 'Stop data reading process and exit?', TMsgDlgType.mtWarning, [TMsgDlgBtn.mbYes, TMsgDlgBtn.mbNo], TMsgDlgBtn.mbNo, 0, CloseFrm); end; procedure TfrmScanTakeOnStore.btnManualClick(Sender: TObject); begin TJNASC.Stop; btnManual.StyleLookup:='btnContinuousStyle1'; btnContinuous.StyleLookup:=''; MainForm.AutomaticMode:=False; end; procedure TfrmScanTakeOnStore.btnTableClick(Sender: TObject); begin CallInUIThread(procedure begin frmScanTakeOnStoreTable:=TfrmScanTakeOnStoreTable.Create(Application); //Free ??? frmScanTakeOnStoreTable.Show; end); end; procedure TfrmScanTakeOnStore.Button1Click(Sender: TObject); //simulation var bc: TBarcodeData; begin bc.Parsed:=True; bc.KPJCode:='80604358'; bc.LotName:='testlot'; OnBarcodeResult(bc); end; procedure TfrmScanTakeOnStore.CloseFrm(Sender: TObject; const AResult: TModalResult); begin if AResult = mrYes then begin TJNASC.Stop; MainForm.AutomaticMode:=False; Close; end; end; procedure TfrmScanTakeOnStore.FormShow(Sender: TObject); begin Log.d('Pre-activate'); tmrSleep.Interval:=Barcode.DelayInSeconds*1000; Barcode.LastScanTimeUnix:=DateTimeToUnix(Now); Barcode.OnBarcodeResult:=OnBarcodeResult; end; procedure TfrmScanTakeOnStore.MaterialAddedNG(Sender: TObject; const AResult: TModalResult); begin if AResult = mrYes then begin ///NG result parse end; end; procedure TfrmScanTakeOnStore.MaterialAddedOK(Sender: TObject; const AResult: TModalResult); begin end; procedure TfrmScanTakeOnStore.OnBarcodeResult(const ABarcodeData: TBarcodeData); begin if ABarcodeData.Parsed then begin StopScannerAndColor(TAlphaColors.Green); end else begin MainForm.ShowInformationMessage(ARNBarCode+' not recognized.'); StopScannerAndColor(TAlphaColors.Red); end; end; procedure TfrmScanTakeOnStore.StopScannerAndColor(CL: Cardinal); begin rectStatus.Fill.Color:=CL; TJNASC.Stop; TJNASC.DeActivate; Log.d('Scanner DeActivate'); tmrSleep.Enabled:=True; end; procedure TfrmScanTakeOnStore.tmrSleepTimer(Sender: TObject); begin TJNASC.Activate; Log.d('Scanner ready'); if MainForm.AutomaticMode then begin MainForm.ShowInformationMessage('Starting scanner'); ////NG {frmScanTakeOnStore.btnManual.OnClick(frmScanTakeOnStore.btnManual); Sleep(1000); frmScanTakeOnStore.btnContinuous.OnClick(frmScanTakeOnStore.btnContinuous);} ////NG {TJNASC.Stop; MainForm.AutomaticMode:=False; TJNASC.Start; MainForm.AutomaticMode:=True;} MainForm.ShowInformationMessage('Automatic mode'); end; rectStatus.Fill.Color:=StrToInt('$FFE0E0E0'); tmrSleep.Enabled:=False; end; end. So after mainform show Honeywell is activated and possible to read QRs After that i'm opening "frmScanTakeOnStore " and select Manual (btnManual) or Automatic (btnContinuous) scanning mode. Manual = operator presses HW button, Automatic = reading laser is always active TJNASC.Start, TJNASC.Stop are responsible for Automatic scanning mode: Stop = Manual, Start = Automatic On Now i have a request from user that when scanning in Automatic then after QR code reading and parsing device need to shutdown scanner on some interval (1-3 seconds) and re-activate it and continue scanning Temporary i decided to do via FMX TTimer. It works normally, notification messages are shown, BUT! scanner is not running automatic mode until i press btnContinuous. I tried 2 variants but same NG result. Also tried via CallInUIThread = same result. So the problem is that i cant start Automatic reading without manual clicking on button Dear collagues, may be i not fully understand FMX logic or doing\missing something wrong?