实现原理:
1.拖一个rectangle控件,Align属性为TOP
2.拖一个Split控件,Align为Top
3.拖Rectangle,Align为Bottom
4.拖Split,Align为Bottom
5.左边、右边依次类推,
6.最后拖一个Rectangle,Align为Client,Stroke属性中的Color为red。
具体代码:
unit UnitCheckIPN;
interface
uses
System.SysUtils, System.Types, System.UITypes, System.Classes, System.Variants,
FMX.Types, FMX.Controls, FMX.Forms, FMX.Graphics, FMX.Dialogs, FMX.StdCtrls,
FMX.Objects, FMX.Controls.Presentation;
type
TForm2 = class(TForm)
RT: TRectangle; //RectTop
ST: TSplitter;
RL: TRectangle;
SL: TSplitter;
RB: TRectangle;
SB: TSplitter;
RR: TRectangle;
SR: TSplitter;
Rect: TRectangle;
Image1: TImage;
Button1: TButton;
Button2: TButton;
Button3: TButton;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
private
{ Private declarations }
procedure SetRect(s:String);
function GetRC: String; // 获取 获取当前矩形的位置
procedure SetRC(const Value: String); // 设置 给定x,y,w,h 矩形自动改变位置
public
{ Public declarations }
property RC: String read GetRC write SetRC; // 将矩形的值设为属性,读为获取rect的(x,y,width, height) 写时为设置矩形的x,y,w,h
end;
var
Form2: TForm2;
implementation
{$R *.fmx}
procedure TForm2.Button1Click(Sender: TObject);
begin
RC:='103,128,301,203'; //
end;
procedure TForm2.Button2Click(Sender: TObject);
begin
ShowMessage(RC); //
end;
procedure TForm2.Button3Click(Sender: TObject);
begin
RC:='103,128,394,203';
end;
function TForm2.GetRC: String;
var
x,y,w,h : Single;
begin
result:='';
y:=RT.Height+ST.Height;
h:=Image1.Height - RT.Height - ST.Height - RB.Height - SB.Height;
x:=RL.Width+SL.Width;
w:=Image1.Width-RL.Width-SL.Width-RR.Width-SR.Width;
result:=x.ToString()+','+y.ToString()+','+w.ToString()+','+h.ToString();
end;
procedure TForm2.SetRC(const Value: String);
var
ss: TStringList;
x,y,w,h: Integer;
begin
ss:=TStringList.Create;
ss.CommaText:=Value;
x:=ss[0].ToInteger();
y:=ss[1].ToInteger();
w:=ss[2].ToInteger();
h:=ss[3].ToInteger();
ss.Free;
RT.Height:=y-ST.Height;
RB.Height:=Image1.Height-(RT.Height + ST.Height + h + SB.Height);
RL.Width:=x-SL.Width;
RR.Width:=Image1.Width-(RL.Width+SL.Width+w+SR.Width);
end;
procedure TForm2.SetRect(s: String);
var
ss: TStringList;
x,y,w,h: Integer;
begin
ss:=TStringList.Create;
ss.CommaText:=s;
x:=ss[0].ToInteger();
y:=ss[1].ToInteger();
w:=ss[2].ToInteger();
h:=ss[3].ToInteger();
ss.Free;
RT.Height:=y-ST.Height;
RB.Height:=Image1.Height-(RT.Height + ST.Height + h + SB.Height);
RL.Width:=x-SL.Width;
RR.Width:=Image1.Width-(RL.Width+SL.Width+w+SR.Width);
end;
end.
这里充分理解了属性,见证了属性的强大,好好学习,再接再厉。