Flutter CupertinoAlertDialog widget error

Question

I'm trying to use CupertinoAlertDialog on my profile page. It works just fine on my other page, but not the profile page.

Here is my code:

showCupertinoModalPopup(
context: context,
  builder: (context) => CupertinoActionSheet(
    actions: [
      image != null ? CupertinoActionSheetAction(
        child: Text('Remove photo',
          style: TextStyle(
              color: Colors.red
          ),),
        onPressed: () {
          Navigator.pop(context);
          _openDialog(context);
        },
      )

void _openDialog(ctx) {
  showCupertinoDialog(
      context: ctx,
      builder: (_) => CupertinoAlertDialog(
        title: Text("Delete Chat"),
        content: Text("Messages will be removed from this device only."),
        actions: [
          // Close the dialog
          // You can use the CupertinoDialogAction widget instead
          CupertinoButton(
              child: Text('Cancel',
                style: TextStyle(
                  color: Color(0xFF2481CF)
                ),
              ),
              onPressed: () {
                Navigator.of(ctx).pop();
              }),
          CupertinoButton(
            child: Text('Delete',
              style: TextStyle(
                color: Colors.red
              ),
            ),
            onPressed: () {
              Navigator.of(ctx).pop();
            },
          )
        ],
      ));
}

And this is the error:

Is there any solutions?

Ravindra S. Patil · Answer 1 · 2022-03-10T10:17:34.563

Try this

Navigator.of(context).pop(false);

instead of

Navigator.of(ctx).pop();

In your code.its working for me.

Your Alert:

    openDialog(BuildContext context) {
    showCupertinoDialog(
      context: context,
      barrierDismissible: false,
      builder: (context) => CupertinoAlertDialog(
        title: Text('Delete Chat'),
        content: Text('Messages will be removed from this device only.'),
        actions: <Widget>[
          CupertinoButton(
            onPressed: () => Navigator.of(context).pop(false),
            child: Text(
              'Cancel',
              style: TextStyle(
                color: Color(0xFF2481CF),
              ),
            ),
          ),
          CupertinoButton(
            onPressed: () => Navigator.of(context).pop(true),
            child: Text(
              'Delete',
              style: TextStyle(color: Colors.red),
            ),
          ),
        ],
      ),
    );
  }

Your Widget:

 ElevatedButton(
        onPressed: () {
          showCupertinoModalPopup(
            context: context,
            builder: (context) => CupertinoActionSheet(
              actions: [
                CupertinoActionSheetAction(
                  child: Text(
                    'Remove photo',
                    style: TextStyle(color: Colors.red),
                  ),
                  onPressed: () {
                    Navigator.pop(context);
                    openDialog(context);
                  },
                ),
              ],
            ),
          );
        },
        child: Text('Click me'),
        style: ElevatedButton.styleFrom(
          primary: Colors.red,
        ),
      ),

Flutter CupertinoAlertDialog widget error

1 Answers1