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Delphi Firmonkey, Android:  blocking dialogs not implemented on this platform

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Last Modified: 2017-03-18
Hello,

I use Delphi Seattle.

I have a MessageDlg like this:
      if MessageDlg('Would you like to continue?'
      , TMsgDlgType.mtConfirmation, [TMsgDlgBtn.mbOK, TMsgDlgBtn.mbCancel], -1) = mrOK then

But on Android I get this error message:  "blocking dialogs not implemented on this platform"

How can I ask then the user to choose?

Thank you.
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Sinisa VukSoftware architect
CERTIFIED EXPERT
Top Expert 2012

Commented:
You should use anonymous method like described in this article..
This is snippet from it (fmxexpress):
MessageDlg('Do you want to press yes or no?', System.UITypes.TMsgDlgType.mtInformation,
[
System.UITypes.TMsgDlgBtn.mbYes, System.UITypes.TMsgDlgBtn.mbNo
], 0,
procedure(const AResult: TModalResult)
begin
case AResult of
{ Detectwhichbuttonwaspushedand show a differentmessage }
mrYes:
begin
// pressed yes
end;
mrNo:
begin
// pressed no
end;
end;
end
);
//....

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Author

Commented:
Hello,

Thank you for the answer. It did pop up but in the background, it continued everything which was after the MessageDlg.

MessageDlg('Do you want to press yes or no?', System.UITypes.TMsgDlgType.mtInformation,
ShowMessage('xxx');

Open in new window

If I use the code above in a Vcl app, first it waits for the user to chose the MessageDlg option, then the  ShowMessage would fire.
However, on Android I saw the ShowMessage first and then the MessageDlg.

This is weird, this way MessageDlg is useless on Android. What do you think?
Software architect
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Top Expert 2012
Commented:
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Author

Commented:
Hello,

Is TDialogService in Delphi Seattle too? I put FMX.DialogService in Uses list but it couldn't find it.

Thank you.
Sinisa VukSoftware architect
CERTIFIED EXPERT
Top Expert 2012

Commented:
don't know ... but  instead of TDialogService.MessageDialog use MessageDlg. Then you don't need any additional uses...

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