Add OnValueChange prop to Select Component

[jobinmatt]

🚀 Feature Proposal

It would be nice if there was an onValueChange prop for the Select Component as this will allow updating the selectedOption when there is a stateChange on the selectedOption value.

Currently, there is only an onSelect prop which updates the selectedOption when the user selects the option manually.

[matheuszenker]

Removed select form my screens because I need to clear all the fields.

[artyorsh]

@matheuszenker what do you mean with clear?

[matheuszenker]

Need to set my state as empty after clicking in other component, but the select besides the state is now empty shows the value of selection, not from state.

[artyorsh]

@matheuszenker we've got a temporary workaround on this with #824 so you can use clear method via ref. This is going to be released soon, but we also will back to this issue in future releases

[artyorsh]

@jobinmatt can you please also provide an example code of what you're trying to achieve? Seems like I couldn't catch your idea for the proper implementation

[jobinmatt]

One of the issues that I was having was that the select component's selectedOption property (selectedOption={this.state.selected}) would not update(the selected option that is displayed by the component) when the selected state variable(this.state.selected) was updated by some other code(this.setState({selected: 'some value'})). I was hoping that there could be an onValueChange property that would get triggered and would update the displayed selectedOption when the variable referenced by the selectedOption property is updated by some code.

Here is a sample code of this implementation using the 'react-native-picker-select' library: