1.创建一个窗体(TfrmSplash),放入一个TImageBox,加载一幅图片,调整好TImageBox与图片的大小,然后在其上放入一个TLabel,name=LblStatus,用于显示加载进度文字。然后将TfrmSplash设置为不自动创建。
2.加入如下代码(代码很简单,就不用解释太多)
- unit UntFormSplash;
- interface
- uses
- Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
- Dialogs, ExtCtrls, StdCtrls;
- type
- TfrmSplash = class(TForm)
- Image1: TImage;
- LblStatus: TLabel;
- private
- { Private declarations }
- FParam:Pointer;
- public
- { Public declarations }
- class function Execute(AParam:Pointer):Boolean;
- procedure SetStatusText(Value: string);
- published
- property StatusText : string write SetStatusText;
- end;
- var
- SplashForm: TfrmSplash;
- implementation
- {$R *.dfm}
- { TfrmSplash }
- class function TfrmSplash.Execute(AParam:Pointer): Boolean;
- begin
- with TfrmSplash.Create(nil) do
- try
- FParam := AParam;
- Result := ShowModal = mrOk;
- finally
- Free;
- end;
- end;
- procedure TfrmSplash.SetStatusText(Value: string);
- begin
- LblStatus.Caption := Value;
- Update; //这句非常重要,不加的话,界面会阻塞,文字也就不会更新显示
- Sleep(1000); //这句根据自己实际情况来调整,主要是怕闪屏太快关闭,达不到效果
- end;
- end.
unit UntFormSplash;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ExtCtrls, StdCtrls;
type
TfrmSplash = class(TForm)
Image1: TImage;
LblStatus: TLabel;
private
{ Private declarations }
FParam:Pointer;
public
{ Public declarations }
class function Execute(AParam:Pointer):Boolean;
procedure SetStatusText(Value: string);
published
property StatusText : string write SetStatusText;
end;
var
SplashForm: TfrmSplash;
implementation
{$R *.dfm}
{ TfrmSplash }
class function TfrmSplash.Execute(AParam:Pointer): Boolean;
begin
with TfrmSplash.Create(nil) do
try
FParam := AParam;
Result := ShowModal = mrOk;
finally
Free;
end;
end;
procedure TfrmSplash.SetStatusText(Value: string);
begin
LblStatus.Caption := Value;
Update; //这句非常重要,不加的话,界面会阻塞,文字也就不会更新显示
Sleep(1000); //这句根据自己实际情况来调整,主要是怕闪屏太快关闭,达不到效果
end;
end.
3. 在项目的.dpr文件中加入如下代码:
- begin
- Application.Initialize;
- Application.MainFormOnTaskbar := True; //这句如果有,必须放在SplashForm 创建之前,否则会在状态栏出现2个应用图标。或者干脆不要这一句。
- SplashForm := TfrmSplash.Create(Application);
- SplashForm.Show;
- SplashForm.Update;
- SplashForm.StatusText := '准备启动...';
- SplashForm.Update;
- Application.CreateForm(TDM, DM);
- Application.CreateForm(TfrmMain, frmMain);
- SplashForm.Hide;
- SplashForm.Free;
- Application.Run;
- end.
begin
Application.Initialize;
SplashForm := TfrmSplash.Create(Application);
SplashForm.Show;
SplashForm.Update;
SplashForm.StatusText := '准备启动...';
SplashForm.Update;
Application.CreateForm(TDM, DM);
Application.CreateForm(TfrmMain, frmMain);
SplashForm.Hide;
SplashForm.Free;
Application.Run;
end.
4.这一步就是主窗体加载数据的时候,边加载边更新闪屏的进度文字了:
- procedure TfrmMain.FormCreate(Sender: TObject);
- begin
- with SplashForm do
- try
- StatusText := ('开始初始化内存...');
- FCacheHash := TStringHashMap.Create(CaseInsensitiveTraits, 255);
- FCurrentClients := TList.Create;
- //VST.NodeDataSize := SizeOf(TTagCustomListItem);
- //VST.RootNodeCount := 2;
- VST.NodeDataSize := SizeOf(TMyTreeNodeDate);
- StatusText :=('初始化内存完成');
- StatusText :=('开始加载客户端列表...');
- BuildGroupTree;
- StatusText :=('加载客户端列表完成');
- StatusText :=('开始加载分组信息...');
- AddELVDefaultGroup;
- StatusText :=('开始初始化内存');
- StatusText :=('开始初始化数据...');
- G_DefNetImpl := TDefNetImpl.Create();
- G_DefNetImpl.RegisterObserver(Self);
- StatusText :=('全部数据加载完毕,程序即将启动...');
- finally
- end;
- end;