[ALOY-1613] iOS: Picker data binding dosen't work

Description

<Picker id="city_picker" >
	<Column dataCollection="citiesAPI">
		<Row cityID="{id}" title="{city}" />
	</Column>
</Picker>

Alloy.Collections.citiesAPI.fetch();

Attachments

Comments

1. Sharif AbuDarda 2018-04-22 Hello, Please provide a full reproducible core that regenerates the issue. Perhaps with a sample project that we can use to test the issue. Thanks.
2. Feon Sua Xin Miao 2018-09-06 Attached a screenshot of the UI, collection binding works as expected. Please reopen with a reproducible app if you are still having the issue.

      <Alloy>
      	<Collection src="color"/>
      	<Window>
      		<Picker id="color_picker" >
      			<Column dataCollection="color">
      				<Row title="{name}" />
      			</Column>
      		</Picker>
      	</Window>
      </Alloy>
      

3. Ahmed Mohamed 2019-01-02 The picker data doesn't change when data is fetched after the picker rendered. you should get the data first then you've to create a picker and put the data in. So the trick is call

   `$.color_picker.reloadColumn($.color_picker.columns[0]);

   after fetching success You've to test that with a real HTTP request, not with local data.

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