Do not spread key as a prop

src/components/ball-indicator/index.js

@@ -64,7 +64,7 @@ export default class BallIndicator extends PureComponent {
     };
 
     return (
-      <Animated.View style={[styles.layer, layerStyle]} {...{ key: index }}>
+      <Animated.View key={index} style={[styles.layer, layerStyle]}>
         <Animated.View style={ballStyle} />
       </Animated.View>
     );

src/components/bar-indicator/index.js

@@ -94,7 +94,7 @@ export default class BarIndicator extends PureComponent {
     };
 
     return (
-      <View style={containerStyle} {...{ key: index }}>
+      <View key={index} style={containerStyle}>
         <Animated.View style={topStyle} />
         <Animated.View style={bottomStyle} />
       </View>

src/components/dot-indicator/index.js

@@ -57,7 +57,7 @@ export default class DotIndicator extends PureComponent {
     };
 
     return (
-      <Animated.View style={style} {...{ key: index }} />
+      <Animated.View key={index} style={style} />
     );
   }
 

src/components/material-indicator/index.js

@@ -107,7 +107,7 @@ export default class MaterialIndicator extends PureComponent {
     };
 
     return (
-      <Animated.View style={styles.layer} {...{ key: index }}>
+      <Animated.View key={index} style={styles.layer}>
         <Animated.View style={layerStyle}>
           <Animated.View style={[containerStyle, offsetStyle]} collapsable={false}>
             <Animated.View style={viewportStyle}>

src/components/pulse-indicator/index.js

@@ -51,7 +51,7 @@ export default class PulseIndicator extends PureComponent {
     };
 
     return (
-      <Animated.View style={styles.layer} {...{ key: index }}>
+      <Animated.View key={index} style={styles.layer}>
         <Animated.View style={pulseStyle} />
       </Animated.View>
     );

src/components/skype-indicator/index.js

@@ -68,7 +68,7 @@ export default class SkypeIndicator extends PureComponent {
     };
 
     return (
-      <Animated.View style={[styles.layer, layerStyle]} {...{ key: index }}>
+      <Animated.View key={index} style={[styles.layer, layerStyle]}>
         <Animated.View style={ballStyle} />
       </Animated.View>
     );

src/components/ui-activity-indicator/index.js

@@ -61,7 +61,7 @@ export default class UIActivityIndicator extends PureComponent {
     };
 
     return (
-      <Animated.View style={[styles.layer, layerStyle]} {...{ key: index }}>
+      <Animated.View key={index} style={[styles.layer, layerStyle]}>
         <Animated.View style={barStyle} />
       </Animated.View>
     );

src/components/wave-indicator/index.js

@@ -64,7 +64,7 @@ export default class WaveIndicator extends PureComponent {
     };
 
     return (
-      <Animated.View style={styles.layer} {...{ key: index }}>
+      <Animated.View key={index} style={styles.layer}>
         <Animated.View style={waveStyle} />
       </Animated.View>
     );