Merge pull request #74 from jarredt/remove_key_change_logic

Remove key change logic

Author: jarvisluong

README.md

@@ -108,10 +108,7 @@ export default () => (
 )
 ```
 
-This is possible because `Swiper` used `cloneElement` and inject internally the `activeIndex` and `index` props to each slide.
-
-> `keys` are automatically set for each child of `Swiper` (when injecting props), if `activeIndex - index` is `0`, it will set the key to `-1`. 
-> **This will cause the new active slide to rerender**
+This is possible because `Swiper` used `cloneElement` and inject internally the `activeIndex` and `index` props to each slide. This also means that all slides will re-render on swipe, since the `activeIndex` prop value changes on swipe.
 
 ---
 

src/Swiper.js

@@ -265,7 +265,7 @@ class Swiper extends React.Component {
                   slideWrapperStyle,
                 ])}
               >
-                {cloneElement(el, { key: i - this.getActiveIndex() ? i : -1, activeIndex: this.getActiveIndex(), index: i })}
+                {cloneElement(el, { activeIndex: this.getActiveIndex(), index: i })}
               </View>
             ))}
           </Animated.View>