flutter,dart - parameter from onpressed properties

Question

I want to pass parameters onto the 'onpressed'

:) == official syntax
:( == get a void error
: p == is the trick I wrote, which doesn't give me an editor error,
but a console error with setstate() after dispose() message

Is there a way to pass parameters to methods in onpressed?

// :) onPressed: (){},
// :) onPressed: _methodName,
// :( onPressed: _methodName(param),
// :p onPressed: (){_methodName(param)},

onPressed: () {
    var docId = _dataList[idx].documentID;
    setState(() { ... });
    print('delete complite');
),

cf. :( error img https://i.stack.imgur.com/DfHpu.png

The cleanest is probably `onPressed: () => _methodName(param),` — Richard Heap, Feb 25 '20 at 14:08

score 0 · Accepted Answer · answered Feb 25 '20 at 15:58

0

Based on the image you posted, you should do

onPressed: () => _clickDeleteIcon(_dataList[idx].documentId),

answered Feb 25 '20 at 15:58

Sebastian

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flutter,dart - parameter from onpressed properties

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