Warning: each child in an array or iterator should have a unique "key" prop

     
Problem:

When populating the listview with a valid data source, the following warning is printed at the bottom of the screen:

Warning: Each child in an array or iterator should have sầu a quality "key" prop. Check the render method ofListView.

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askedMar 15ummesalma29.1k points
Solution:

I've sầu hadexactlythe same problem as you for a while now, & after looking at some of the suggestions above sầu, I finally solved the problem.

It turns out (at least for me anyway), I needed to supply a key (a prop called 'key') to the component I am returning from my renderSeparator method. Adding a key lớn my renderRow or renderSectionHeader didn't vày anything, but adding it to renderSeparator made the warning go away.

Xem thêm: Bytefence Anti - Bytefence Activation Key 2017

Hope that helps.


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answeredMar 15ummehani55.2k points

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