delphi IOS 后台状态保存

FormSaveState

procedure TFrm.FormSaveState(Sender: TObject);
begin

end;

http://stackoverflow.com/questions/22967520/read-and-writing-a-inifile-in-a-delphi-firemonkey-mobile-application

FMX.Forms.TFormSaveState

 

Occurs when the form is about to go to background on mobile devices or when the form is about to be closed on desktop.

Any form-related data should be saved during the OnSaveState event so this data can be restored once the application is restarted. 

 

http://docwiki.embarcadero.com/Libraries/Seattle/en/FMX.Forms.TCommonCustomForm.OnSaveState 

FMX.Forms.TFormSaveState

FMX.Forms.TFormSaveState.Stream

FMX.Forms.TFormSaveState.StoragePath

FMX.Forms.TFormSaveState.Name

self.SaveState.StoragePath:= System.IOUtils.TPath.GetTempPath;
self.SaveState.Stream.SaveToFile();
self.SaveState.Stream.LoadFromFile();