react-native#ImageErrorEventData TypeScript Examples

The following examples show how to use react-native#ImageErrorEventData. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: index.tsx    From react-native-better-image with MIT License 4 votes vote down vote up 
BetterImage = ({
  viewStyle,
  thumbnailFadeDuration = 250,
  imageFadeDuration = 250,
  thumbnailSource,
  source,
  onLoadEnd,
  resizeMethod,
  resizeMode,
  thumbnailBlurRadius = 1,
  style,
  fallbackSource = { uri: '' },
  onError,
  children,
  ...otherProps
}: BetterImageProps) => {
  const imageOpacity = useRef(new Value(0)).current;
  const thumbnailOpacity = useRef(new Value(0)).current;
  const thumbnailAnimationProgress = useRef<
    Animated.CompositeAnimation | undefined
  >();
  const [hasError, setHasError] = useState(false);
  const [hasLoaded, setHasLoaded] = useState(false);

  const onImageLoad = () => {
    setHasLoaded(true);

    timing(imageOpacity, {
      toValue: 1,
      duration: imageFadeDuration,
      useNativeDriver: true,
    }).start(() => {
      thumbnailAnimationProgress.current?.stop();
      timing(thumbnailOpacity, {
        toValue: 0,
        duration: thumbnailFadeDuration,
        useNativeDriver: true,
      }).start();
    });

    onLoadEnd && onLoadEnd();
  };

  const onThumbnailLoad = () => {
    if (!hasLoaded) {
      const progress = timing(thumbnailOpacity, {
        toValue: 1,
        duration: thumbnailFadeDuration,
        useNativeDriver: true,
      });
      thumbnailAnimationProgress.current = progress;
      thumbnailAnimationProgress.current.start();
    }
  };

  const onImageLoadError = (
    event: NativeSyntheticEvent<ImageErrorEventData>
  ) => {
    setHasError(true);
    onError && onError(event);
  };

  useDeepCompareEffectNoCheck(
    useCallback(() => {
      imageOpacity.setValue(0);
      thumbnailOpacity.setValue(0);
      setHasError(false);
      setHasLoaded(false);
      // eslint-disable-next-line react-hooks/exhaustive-deps
    }, []),
    [source, thumbnailSource]
  );

  const ImageComponent = children ? AnimatedImageBackground : AnimatedImage;

  return (
    <View style={[styles.imageContainerStyle, viewStyle]}>
      {thumbnailSource ? (
        <ImageComponent
          children={children}
          onLoadEnd={onThumbnailLoad}
          style={[
            styles.thumbnailImageStyle,
            { opacity: thumbnailOpacity },
            style,
          ]}
          source={thumbnailSource}
          blurRadius={thumbnailBlurRadius}
          resizeMethod={resizeMethod}
          resizeMode={resizeMode}
        />
      ) : null}
      <ImageComponent
        children={children}
        resizeMethod={resizeMethod}
        resizeMode={resizeMode}
        onLoadEnd={onImageLoad}
        onError={hasError ? () => null : onImageLoadError}
        source={hasError ? fallbackSource : source}
        style={[styles.imageStyle, { opacity: imageOpacity }, style]}
        {...otherProps}
      />
    </View>
  );
}