我没有在启动画面的项目选项中使用png图像,而是使用我自己的表格作为启动画面。
我在以下链接中找到了XE2的解决方案,但它对Delphi 10 Seattle不起作用:https://stackoverflow.com/a/9080804/2728408
下面我有一些我在项目中尝试过的例子.dpr:
示例1:
program Project2;
uses
FMX.Forms,
System.SysUtils,
Unit1 in 'Unit1.pas' {MainForm},
Unit2 in 'Unit2.pas' {SplashForm};
{$R *.res}
begin
Application.Initialize;
SplashForm := TSplashForm.Create(nil);
SplashForm.Show;
Application.ProcessMessages;
Sleep(1000); // Whatever to control display time of splash screen
Application.CreateForm(TMainForm, MainForm);
SplashForm.Close;
SplashForm.Free;
Application.Run;
end.
示例2:
program Project2;
uses
FMX.Forms,
System.SysUtils,
Unit1 in 'Unit1.pas' {MainForm},
Unit2 in 'Unit2.pas' {SplashForm};
{$R *.res}
begin
Application.Initialize;
Application.CreateForm(TSplashForm, SplashForm);
Application.Run;
Sleep(1000);
Application.Terminate;// Also tried Application.Destroy
Application.Initialize;
Application.CreateForm(TMainForm, MainForm);
Application.Run;
end.
示例3:
program Project2;
uses
FMX.Forms,
System.SysUtils,
Unit1 in 'Unit1.pas' {MainForm},
Unit2 in 'Unit2.pas' {SplashForm};
{$R *.res}
begin
Application.Initialize;
Application.CreateForm(TSplashForm, SplashForm);
Application.Run;
Sleep(1000);
Application.CreateForm(TMainForm, MainForm);
SplashForm.Close;
Application.ProcessMessages;
Application.Run;
end.
任何人都可以解决我的问题吗?
答案 0 :(得分:8)
你不应该像在代码中那样干扰Application.Terminare / Inititalse。
在Firemonkey中,您可以在运行时更改应用程序的主窗体。因此,您应首先显示您的启动表单,完成所需的所有工作,然后切换到主表单。
请参阅此示例:http://www.uweraabe.de/Blog/2016/01/22/a-splash-form-in-firemonkey/
procedure TFormSplash.FormCreate(Sender: TObject);
begin
StartupTimer.Enabled := false;
StartupTimer.Interval := 500; // can be changed to improve startup speed in later releases
end;
procedure TFormSplash.SplashImagePaint(Sender: TObject; Canvas: TCanvas; const ARect: TRectF);
begin
StartupTimer.Enabled := not FInitialized;
end;
procedure TFormSplash.StartupTimerTimer(Sender: TObject);
begin
StartupTimer.Enabled := false;
if not FInitialized then begin
FInitialized := true;
LoadMainForm;
end;
end;
procedure TFormSplash.LoadMainForm;
var
form: TForm;
begin
form := TMainForm.Create(Application);
form.Show;
Application.MainForm := form;
Close;
end;
答案 1 :(得分:0)
这是我过去 3 天左右一直在做的事情。
首先:创建启动画面的形式。像Delphi/C++ IDE的正常加载一样,它有一个指示“xxxx dll is loading..”。因此,基本步骤是将启动画面作为主应用程序通常加载的一部分。
第二:请记住,您的 DPR 文件在加载和/或创建所有表单方面起着至关重要的作用。虽然我同意 VCL 函数 (Application.ProcessMessages) 向用户显示它正在创建表单。
第三:永远不要在主窗体 OnCreate 事件中运行程序,除了蒙皮或实例化皮肤。但是一旦创建了主表单,在 DPR 中再次调用它。
第四:创建主窗体后首先禁用它,这样用户就不会单击按钮或其他任何东西,然后在隐藏启动画面时重新启用它。
这是 DPR:
program xxxx;
uses
Forms, MidasLib,.....
{$R *.res}
begin
Application.Initialize;
Application.MainFormOnTaskbar := True;
Application.Title := 'xxxxx';
SplashFrm := TSplashFrm.Create(Application);
try
Application.CreateForm(TMain_Form, Main_Form);
Main_Form.Skinning;
Application.ProcessMessages;
SplashFrm.FormStyle := TFormStyle.fsStayOnTop;
Main_Form.Enabled := False;
Main_Form.WindowState := TWindowState.wsMaximized;
Application.ProcessMessages;
SplashFrm.Show; //Never use showModal coz splash form needs to be closed first and create all the rest of the forms.
SplashFrm.Label5.Caption := 'Loading... Database handlers..';
Application.CreateForm(TDM, DM);
Application.ProcessMessages;
SplashFrm.Label5.Caption := 'Loading... Login Libraries..';
Application.CreateForm(TLogin_Frm, Login_Frm);
Application.ProcessMessages;
.....// All the rest of the Forms.
Main_Form.DSiTrimWorkingSet; //[StockOverflow/questions/2031577][1]
finally
SplashFrm.Free;
Main_Form.Check_Registration;
Main_Form.Checking_Internet_Proc;
Main_Form.Enabled := True;
Main_Form.sStatusBar1.Panels[0].Text := 'Ready...';
Application.ProcessMessages;
Main_Form.DSiTrimWorkingSet;
end;
Application.Run;
end.