unit Unit1;

interface

uses
  System.SysUtils, System.Types, System.UITypes, System.Classes, System.Variants,
  FMX.Types, FMX.Controls, FMX.Forms, FMX.Dialogs, FMX.Objects;

type
  TForm1 = class(TForm)
    Lang1: TLang;
    RadioButton1: TRadioButton;
    RadioButton2: TRadioButton;
    RadioButton3: TRadioButton;
    Button1: TButton;
    CheckBox1: TCheckBox;
    Label1: TLabel;
    procedure FormCreate(Sender: TObject);
    procedure RadioButton1Change(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  end;

var
  Form1: TForm1;

implementation

{$R *.fmx}

procedure TForm1.FormCreate(Sender: TObject);
begin
  RadioButton1.Text := 'English';
  RadioButton2.Text := '简体中文';
  RadioButton3.Text := '繁体中文';
  RadioButton1.Tag := 0;
  RadioButton2.Tag := 1;
  RadioButton3.Tag := 2;
  RadioButton2.OnChange := RadioButton1.OnChange;
  RadioButton3.OnChange := RadioButton1.OnChange;

  {这些标题应对应着 TLang 的相关设置}
  Button1.Text := 'Button';
  CheckBox1.Text := 'CheckBox';
  Label1.Text := 'Test';
  Caption := 'Test';

  {添加语言类别}
  Lang1.AddLang('en');
  Lang1.AddLang('cn');
  Lang1.AddLang('big');

  {Original: 这个原始的 TStrings 可有可无}
  with Lang1.Original do
  begin
    Add('Button');
    Add('CheckBox');
    Add('Test');
  end;

  {en 作为默认也可以不设置}
  with Lang1.LangStr['en'] do
  begin
    Add('Button');
    Add('CheckBox');
    Add('Test');
  end;

  {简体中文}
  with Lang1.LangStr['cn'] do
  begin
    Values['Button'] := '按钮';
    Values['CheckBox'] := '复选框';
    Values['Test'] := '测试';
//    Values[Lang1.Original[0]] := '按钮';
//    Values[Lang1.Original[1]] := '复选框';
//    Values[Lang1.Original[2]] := '测试';
  end;

  {繁体中文}
  with Lang1.LangStr['big'] do
  begin
    Values['Button'] := '按鈕';
    Values['CheckBox'] := '復選框';
    Values['Test'] := '測試';
  end;
end;

{切换}
procedure TForm1.RadioButton1Change(Sender: TObject);
begin
  case TRadioButton(Sender).Tag of
    0: Lang1.Lang := 'en';
    1: Lang1.Lang := 'cn';
    2: Lang1.Lang := 'big';
  end;
end;

{语言数据保存在 Resources 属性中, 它是嵌套的 TStrings 类型}
procedure TForm1.Button1Click(Sender: TObject);
var
  i: Integer;
begin
  for i := 0 to Lang1.Resources.Count - 1 do
    ShowMessage(TStrings(Lang1.Resources.Objects[i]).Text);
end;

end.