To check with Delphi / Firemonkey if the screen is in Landscape or Portrait mode i use the FMXPlatform library as in the example:
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 |
uses FMXPlatform; ... procedure TForm2.FormResize(Sender: TObject); var ScreenService: IFMXScreenService; begin if TPlatformServices.Current.SupportsPlatformService(IFMXScreenService, IInterface(ScreenService)) then begin if ScreenService.GetScreenOrientation in [TScreenOrientation.soPortrait, TScreenOrientation.soInvertedPortrait] then ShowMessage('Portrait Orientation') else Begin ShowMessage('Landscape Orientation'); End; end; end; |
With Delphi , to the Seattle version , when you scale a bitmap image to enlarge using the command “Canvas.DrawBitmap(OiginalBitmap, RectF(0, 0, OiginalBitmap.Width, OiginalBitmap.Height), RectF(0, 0, Width, Height), 1, False);” the interpolation cant be disabled. A way to eliminate the problem is to manually scale the bitmap directly creating an image pixel by pixel .…
Leggi tutto
Here is a sample code (function) to get the current language (locale) in Delphi 10Seattle. This simple procedure return the locale language for Windows, Mac and Android.
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 |
function GetOSLangID: String; {$IFDEF MACOS} var Languages: NSArray; begin Languages := TNSLocale.OCClass.preferredLanguages; Result := TNSString.Wrap(Languages.objectAtIndex(0)).UTF8String; {$ENDIF} {$IFDEF ANDROID} var LocServ: IFMXLocaleService; begin if TPlatformServices.Current.SupportsPlatformService(IFMXLocaleService, IInterface(LocServ)) then Result := LocServ.GetCurrentLangID; {$ENDIF} {$IFDEF MSWINDOWS} var buffer: MarshaledString; UserLCID: LCID; BufLen: Integer; begin // defaults UserLCID := GetUserDefaultLCID; BufLen := GetLocaleInfo(UserLCID, LOCALE_SISO639LANGNAME, nil, 0); buffer := StrAlloc(BufLen); if GetLocaleInfo(UserLCID, LOCALE_SISO639LANGNAME, buffer, BufLen) <> 0 then Result := buffer else Result := 'en'; StrDispose(buffer); {$ENDIF} end; { code } //See more at: http://codeverge.com/embarcadero.delphi.firemonkey/detect-current-language-on-andr/2001235#sthash.zjLIi2KY.dpuf |
A very simple way to search, select and import contact information from your phone (Android Contacts) to your android app is: 1) Send the specific android intent “ACTION_PICK”:
|
1 2 3 4 5 |
private void startContactPicker() { Intent contactPickerIntent = new Intent(Intent.ACTION_PICK, Contacts.CONTENT_URI); startActivityForResult(contactPickerIntent, CONTACT_PICKER_REQ_CODE); } |
This intent will do for us and “for free” the operation of opening the contacts list and select the contact to import. 2) Simply manage the…
Leggi tutto
Nello sviluppo di applicazioni mobili diventa sempre più importante il supporto di schermi e dimensioni anche molto diverse a causa del diffondersi di modelli e tipologie di dispositivi sempre più disparati. Per fortuna Android offre una soluzione veramente intelligente e semplice per aiutarci a sviluppare applicazioni che da un lato siano compatibili col maggior numero…
Leggi tutto
