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fix: twitter example for android & improve performance #7

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merged 1 commit into from
Mar 29, 2023
Merged

fix: twitter example for android & improve performance #7

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64 changes: 45 additions & 19 deletions example/src/screens/usage/TwitterProfile.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,13 @@ import { Avatar, AVATAR_SIZE_MAP } from '../../components';
import { BlurView } from '@react-native-community/blur';
import TwitterVerifiedSvg from '../../../assets/twitter-verified.svg';
import type { TwitterProfileScreenNavigationProps } from '../../navigation';
import { Platform } from 'react-native';

// From reading comments online, the BlurView does not work properly for Android <= 11.
// We will have a boolean to check if we can use the BlurView.
// Note that Android 12 begins at SDK version 31
const canUseBlurView =
Platform.OS === 'ios' || (Platform.OS === 'android' && Number(Platform.Version) >= 31);

const ROOT_HORIZONTAL_PADDING = 12;
const TWITTER_PRIMARY_COLOR = '#1d9bf0';
Expand All @@ -55,20 +62,20 @@ const HeaderComponent: React.FC<ScrollHeaderProps> = ({ showNavBar, scrollY }) =
return { opacity: blurOpacity.value };
});

const paddingBottom = useDerivedValue(() => {
const bannerTranslation = useDerivedValue(() => {
return interpolate(
scrollY.value,
[0, AVATAR_SIZE_VALUE],
[AVATAR_SIZE_VALUE, 0],
[0, -AVATAR_SIZE_VALUE],
Extrapolate.CLAMP
);
}, [scrollY]);

// We use a "paddingBottom" adjustment to increase the banner's size.
// Using height is causing crashes on iOS at the moment...
// https://github.com/software-mansion/react-native-reanimated/issues/2285
const paddingBottomStyle = useAnimatedStyle(() => {
return { paddingBottom: paddingBottom.value };
const bannerTranslationStyle = useAnimatedStyle(() => {
return { transform: [{ translateY: bannerTranslation.value }] };
});

const profileContainerTranslationY = useDerivedValue(() => {
Expand Down Expand Up @@ -120,8 +127,8 @@ const HeaderComponent: React.FC<ScrollHeaderProps> = ({ showNavBar, scrollY }) =
});

return (
<Animated.View style={[styles.smallHeaderContainer, paddingBottomStyle]}>
<Animated.View style={StyleSheet.absoluteFill}>
<View style={styles.smallHeaderContainer}>
<Animated.View style={[StyleSheet.absoluteFill, bannerTranslationStyle]}>
<ScalingView
scrollY={scrollY}
translationDirection="none"
Expand All @@ -131,17 +138,35 @@ const HeaderComponent: React.FC<ScrollHeaderProps> = ({ showNavBar, scrollY }) =
endScale={6}
endRange={height * 0.43}
>
<AnimatedBlurView
style={[StyleSheet.absoluteFill, styles.blurView, blurStyle]}
blurType="dark"
reducedTransparencyFallbackColor="black"
/>

<AnimatedImage
source={require('../../../assets/planets.jpeg')}
resizeMode="cover"
style={[styles.imageStyle, { width }]}
/>
<View style={{ marginBottom: -AVATAR_SIZE_VALUE }}>
{canUseBlurView ? (
<AnimatedBlurView
style={[StyleSheet.absoluteFill, styles.blurView, blurStyle]}
blurType="dark"
reducedTransparencyFallbackColor="white"
blurAmount={5}
// @ts-ignore
// https://github.com/Kureev/react-native-blur/issues/414
// Fixes Android issue where the blur view will take up the whole screen.
overlayColor="transparent"
/>
) : (
<Animated.View
style={[
StyleSheet.absoluteFill,
styles.blurView,
styles.androidBlurViewBg,
blurStyle,
]}
/>
)}

<AnimatedImage
source={require('../../../assets/planets.jpeg')}
resizeMode="cover"
style={[styles.imageStyle, { width }]}
/>
</View>
</ScalingView>
</Animated.View>

Expand Down Expand Up @@ -207,7 +232,7 @@ const HeaderComponent: React.FC<ScrollHeaderProps> = ({ showNavBar, scrollY }) =
</TouchableOpacity>
</Animated.View>
</Animated.View>
</Animated.View>
</View>
);
};

Expand All @@ -230,7 +255,7 @@ const LargeHeaderComponent: React.FC<ScrollLargeHeaderProps> = ({ scrollY }) =>
return interpolate(
scrollY.value,
[0, AVATAR_SIZE_VALUE],
[0, AVATAR_SIZE_VALUE / 2 + 24],
[AVATAR_SIZE_VALUE, AVATAR_SIZE_VALUE / 2 + 24],
Extrapolate.CLAMP
);
}, [scrollY]);
Expand Down Expand Up @@ -449,4 +474,5 @@ const styles = StyleSheet.create({
},
locationAndWebContainer: { flexDirection: 'row', gap: 12, alignItems: 'center' },
dataRow: { flexDirection: 'row', gap: 4, alignItems: 'center' },
androidBlurViewBg: { backgroundColor: 'rgba(0,0,0,0.4)' },
});