customSlide prop is broken??

[thisiswhale]

I keep getting a black screen whenever I want to add customSlide prop. I'm using the most basic format and I still get a black screen. I'm not sure if I'm using it right. Its pretty much from the example. The code works if I comment out customSlide props.

const { width } = Dimensions.get("window");
const height = width * 0.6;

render() {
const images = [
  'https://placeimg.com/640/640/nature',
  'https://placeimg.com/640/640/people',
  'https://placeimg.com/640/640/animals',
  'https://placeimg.com/640/640/beer',
];
}
return(
<View style={{ height }}>
    <ImageSlider
      images={images}
      customSlide={({ index, item, style, width }) => (
        // It's important to put style here because it's got offset inside
        <View key={index} style={[style]}>
          <Image source={{ uri: item }}  />
        </View>
      )}
    />
<View/>
);

[nicoandriyan]

same with me, on android sometime prop index show -1, it should start from 0 right?