ReactNative ListView inconsistent separator lines

Question

On Android 4.4, ListView separator lines are inconsistent in thickness, and some do not render. I can't see how this can be a code issue, this is how I render them:

     separator: {
        height: 1,
        backgroundColor: 'grey',
      }
      ...
      <ListView
      renderSeparator={(sectionID, rowID) =>
        <View key={`${sectionID}-${rowID}`} style={styles.separator} />
      }
      .../>

Here is a screenshot of a View with this problem:

This issue does not happen on iOS or Android 6.

Anyone had this problem before?

Update

I did a test, this is not Android4 issue. It happens on all API version when running on Nexus One device (in android emulator)

Answer 1

I had this issue on iOS and worked around it by adding a hairline margin, like so:

<View
    style={{
      ...styles,
      borderWidth: StyleSheet.hairlineWidth,
      margin: StyleSheet.hairlineWidth,
    }}
>
    {// ...row content}
</View>