[Android] Cannot set empty field

[maticDevelo]

On Android devices dropdown automatically selects first item. If i dont have Picker.item Select Property it would select Item 1.
What it shoud do is if value is 0 or undefined not show a label. It should be empty field. I can achieve empty field if i set first Item label to empty string. However than in modal i have this empty block.

The ideal would be if in modal it says Select Property label so user can click on that to reset field. And then the field should be empty.

Is there a way to achieve this? The code is usuall. Picker component with item map of Picker.Items.

[dmk3141618]

Same issue on Android.

I can set empty string as a value on the iOS device.

But I can not set empty string as a value on the Android device. It does not trigger onValueChange.
value is '', 'option1', 'option2'
then '' >> 'option1' , it triggers onValueChange.
then 'option1' >> 'option2' , it triggers onValueChange.
But 'option2' >> '' , it does not trigger onValueChange.
So I can not reset value to the empty state.

on the iOS device, it works.

[dmk3141618]

Any updates? Sorry but I really need this fixed.

[jeffnian88]

Hi all,

is there any update?

[vincicat]

not a very useful update: you can't select the empty string Item because falsy value on Android will not trigger onValueChange (see #608)
in the long term, that require the contributors to fix the data type on Android; In the short term, there is a trick: you can use whitespace as the empty value placeholder.

So the "empty field" will be something like this:

<Picker.Item value=" " label="" />

and in the function that processing the selected value....

valueProcessor = (v = "")=>{ 
    v = v.trim(); // clean up: placeholder value will be a empty string now
    /* remaining tasks */ 
}

demo