FMX.Platform.TApplicationEvent

http://docwiki.embarcadero.com/Libraries/XE8/en/FMX.Platform.TApplicationEvent

TApplicationEvent = (FinishedLaunching, BecameActive, WillBecomeInactive, EnteredBackground, WillBecomeForeground, WillTerminate, LowMemory, TimeChange, OpenURL);

An instance of TApplicationEvent may have any of the following values:

Item	Description	Platform
Item	Description	Android	iOS
`BecameActive`	Your application has gained the focus.	Supported	Supported
`EnteredBackground`	The user is no longer using your application, but your application is still running in the background.	Supported	Supported
`FinishedLaunching`	Your application has been launched.	Supported	Supported
`LowMemory`	This warns your application that the device is running out of memory. Your application should reduce memory usage, freeing structures and data that can be loaded again at a later point.	Supported	Supported
`OpenURL`	You application has received a request to open an URL. Application events of this type are usually associated with a context. This context is an instance of the iOS-only `TiOSOpenApplicationContext` class, which provides the following read-only properties: `TiOSOpenApplicationContext.SourceApp` is a string that contains the bundle ID of the application that requested your application to open the URL. `TiOSOpenApplicationContext.URL` is the URL to open, either a network resource or a file. `TiOSOpenApplicationContext.Context` is a pointer to a property-list object that might provide additional information. See the iOS API reference documentation for more information.		Supported
`TimeChange`	There has been a significant change in time. This event might happen for example when the day changes or when the device changes to or from daylight savings time.		Supported
`WillBecomeForeground`	The user is now using your application, which was previously in the background.	Supported	Supported
`WillBecomeInactive`	Your application is going to loose the focus.	Supported	Supported
`WillTerminate`	The user is quitting your application.	Supported	Supported

http://codeverge.com/embarcadero.delphi.ios/ifmxapplicationeventservice-not-firing/2028062

http://codeverge.com/embarcadero.delphi.firemonkey/keep-application-on-top/2009583

procedure TMainForm.FormCreate(Sender: TObject); var SvcEvents: IFMXApplicationEventService; begin if TPlatformServices.Current.SupportsPlatformService(IFMXApplicationEventService, IInterface(SvcEvents)) then SvcEvents.SetApplicationEventHandler(HandleAppEvent); Application.OnException := ExceptionHandler; end; function TMainForm.HandleAppEvent(AAppEvent: TApplicationEvent; AContext: TObject): Boolean; begin case AAppEvent of TApplicationEvent.FinishedLaunching: ; TApplicationEvent.BecameActive: ; TApplicationEvent.WillBecomeInactive: ; TApplicationEvent.EnteredBackground: ; TApplicationEvent.WillBecomeForeground: ; TApplicationEvent.WillTerminate: ; TApplicationEvent.LowMemory: ; TApplicationEvent.TimeChange: ; TApplicationEvent.OpenURL: ; end; Result := True; end; - See more at: http://codeverge.com/embarcadero.delphi.firemonkey/keep-application-on-top/2009583#sthash.6XM5jEUI.dpuf

http://codeverge.com/embarcadero.delphi.firemonkey/keep-application-on-top/2009583

procedure TMainForm.FormCreate( Sender : TObject );
  var
    SvcEvents : IFMXApplicationEventService;
begin
    if TPlatformServices.Current.SupportsPlatformService
      ( IFMXApplicationEventService, IInterface( SvcEvents ) )
    then
      SvcEvents.SetApplicationEventHandler( HandleAppEvent );
    Application.OnException := ExceptionHandler;
end;

function TMainForm.HandleAppEvent(   AAppEvent : TApplicationEvent;   AContext  : TObject ) : Boolean;
begin
    case AAppEvent of
      TApplicationEvent.FinishedLaunching :
        ;
      TApplicationEvent.BecameActive :
        ;
      TApplicationEvent.WillBecomeInactive :
        ;
      TApplicationEvent.EnteredBackground :
        ;
      TApplicationEvent.WillBecomeForeground :
        ;
      TApplicationEvent.WillTerminate :
        ;
      TApplicationEvent.LowMemory :
        ;
      TApplicationEvent.TimeChange :
        ;
      TApplicationEvent.OpenURL :
        ;
    end;
    Result := True;
end;
//See more at : http://codeverge.com/embarcadero.delphi.firemonkey/keep-application-on-top/2009583

时间： 2024-08-09 14:48:54

FMX.Platform.TApplicationEvent

FMX.Platform.TApplicationEvent

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