Add placeholder loading states

zio/stable
Paul Frazee 2022-11-16 13:05:36 -06:00
parent e003f2e3cb
commit 17825cd611
5 changed files with 128 additions and 9 deletions

View File

@ -1,11 +1,12 @@
import React from 'react'
import {observer} from 'mobx-react-lite'
import {Text, View, FlatList} from 'react-native'
import {View, FlatList} from 'react-native'
import {
NotificationsViewModel,
NotificationsViewItemModel,
} from '../../../state/models/notifications-view'
import {FeedItem} from './FeedItem'
import {NotificationFeedLoadingPlaceholder} from '../util/LoadingPlaceholder'
import {ErrorMessage} from '../util/ErrorMessage'
import {EmptyState} from '../util/EmptyState'
@ -32,7 +33,7 @@ export const Feed = observer(function Feed({
return (
<View style={{flex: 1}}>
{view.isLoading && !view.isRefreshing && !view.hasContent && (
<Text>Loading...</Text>
<NotificationFeedLoadingPlaceholder />
)}
{view.hasError && (
<ErrorMessage

View File

@ -1,6 +1,7 @@
import React, {MutableRefObject} from 'react'
import {observer} from 'mobx-react-lite'
import {Text, View, FlatList, StyleProp, ViewStyle} from 'react-native'
import {View, FlatList, StyleProp, ViewStyle} from 'react-native'
import {PostFeedLoadingPlaceholder} from '../util/LoadingPlaceholder'
import {EmptyState} from '../util/EmptyState'
import {ErrorMessage} from '../util/ErrorMessage'
import {FeedModel, FeedItemModel} from '../../../state/models/feed-view'
@ -31,7 +32,7 @@ export const Feed = observer(function Feed({
return (
<View style={style}>
{feed.isLoading && !feed.isRefreshing && !feed.hasContent && (
<Text>Loading...</Text>
<PostFeedLoadingPlaceholder />
)}
{feed.hasError && (
<ErrorMessage

View File

@ -1,13 +1,16 @@
import React, {useEffect, useMemo} from 'react'
import {
Animated,
StyleSheet,
StyleProp,
useWindowDimensions,
View,
ViewStyle,
} from 'react-native'
import LinearGradient from 'react-native-linear-gradient'
import {colors} from '../../lib/styles'
import {FontAwesomeIcon} from '@fortawesome/react-native-fontawesome'
import {UpIcon, DownIcon} from '../../lib/icons'
import {s, colors} from '../../lib/styles'
export function LoadingPlaceholder({
width,
@ -49,7 +52,7 @@ export function LoadingPlaceholder({
{
width,
height,
backgroundColor: colors.gray2,
backgroundColor: '#e7e9ea',
borderRadius: 6,
overflow: 'hidden',
},
@ -62,7 +65,7 @@ export function LoadingPlaceholder({
transform: [{translateX: offset}],
}}>
<LinearGradient
colors={[colors.gray2, '#d4d2d2', colors.gray2]}
colors={['#e7e9ea', '#e2e2e2', '#e7e9ea']}
start={{x: 0, y: 0}}
end={{x: 1, y: 0}}
style={{width: '100%', height: '100%'}}
@ -71,3 +74,116 @@ export function LoadingPlaceholder({
</View>
)
}
export function PostLoadingPlaceholder({
style,
}: {
style?: StyleProp<ViewStyle>
}) {
return (
<View style={[styles.post, style]}>
<LoadingPlaceholder width={50} height={50} style={styles.avatar} />
<View style={[s.flex1]}>
<LoadingPlaceholder width={100} height={8} style={[s.mb10]} />
<LoadingPlaceholder width={200} height={8} style={[s.mb5]} />
<LoadingPlaceholder width={200} height={8} style={[s.mb5]} />
<LoadingPlaceholder width={120} height={8} style={[s.mb10]} />
<View style={s.flexRow}>
<View style={s.flex1}>
<FontAwesomeIcon
style={s.gray3}
icon={['far', 'comment']}
size={14}
/>
</View>
<View style={s.flex1}>
<FontAwesomeIcon style={s.gray3} icon="retweet" size={18} />
</View>
<View style={s.flex1}>
<UpIcon style={s.gray3} size={18} />
</View>
<View style={s.flex1}>
<DownIcon style={s.gray3} size={18} />
</View>
</View>
</View>
</View>
)
}
export function PostFeedLoadingPlaceholder() {
return (
<>
<PostLoadingPlaceholder />
<PostLoadingPlaceholder />
<PostLoadingPlaceholder />
<PostLoadingPlaceholder />
<PostLoadingPlaceholder />
<PostLoadingPlaceholder />
<PostLoadingPlaceholder />
<PostLoadingPlaceholder />
<PostLoadingPlaceholder />
<PostLoadingPlaceholder />
<PostLoadingPlaceholder />
</>
)
}
export function NotificationLoadingPlaceholder({
style,
}: {
style?: StyleProp<ViewStyle>
}) {
return (
<View style={[styles.notification, style]}>
<View style={[s.flexRow, s.mb10]}>
<LoadingPlaceholder width={30} height={30} style={styles.smallAvatar} />
</View>
<LoadingPlaceholder width={200} height={8} style={[s.mb5]} />
<LoadingPlaceholder width={120} height={8} style={[s.mb5]} />
</View>
)
}
export function NotificationFeedLoadingPlaceholder() {
return (
<>
<NotificationLoadingPlaceholder />
<NotificationLoadingPlaceholder />
<NotificationLoadingPlaceholder />
<NotificationLoadingPlaceholder />
<NotificationLoadingPlaceholder />
<NotificationLoadingPlaceholder />
<NotificationLoadingPlaceholder />
<NotificationLoadingPlaceholder />
<NotificationLoadingPlaceholder />
<NotificationLoadingPlaceholder />
<NotificationLoadingPlaceholder />
</>
)
}
const styles = StyleSheet.create({
post: {
flexDirection: 'row',
backgroundColor: colors.white,
borderRadius: 6,
padding: 10,
margin: 1,
},
avatar: {
borderRadius: 25,
marginRight: 10,
},
notification: {
backgroundColor: colors.white,
borderRadius: 6,
padding: 10,
paddingLeft: 46,
margin: 1,
},
smallAvatar: {
borderRadius: 15,
marginRight: 10,
},
})

View File

@ -77,7 +77,7 @@ export function PostCtrls(opts: PostCtrlsOpts) {
icon={['far', 'comment']}
size={14}
/>
<Text style={s.f13}>{opts.replyCount}</Text>
<Text style={[s.ml5, s.f13]}>{opts.replyCount}</Text>
</TouchableOpacity>
</View>
<View style={s.flex1}>

View File

@ -12,6 +12,7 @@ import {ConfirmModel} from '../../state/models/shell-ui'
import {ProfileHeader} from '../com/profile/ProfileHeader'
import {FeedItem} from '../com/posts/FeedItem'
import {ProfileCard} from '../com/profile/ProfileCard'
import {PostFeedLoadingPlaceholder} from '../com/util/LoadingPlaceholder'
import {ErrorScreen} from '../com/util/ErrorScreen'
import {ErrorMessage} from '../com/util/ErrorMessage'
import {EmptyState} from '../com/util/EmptyState'
@ -106,7 +107,7 @@ export const Profile = observer(({visible, params}: ScreenParams) => {
if (uiState) {
if (uiState.isInitialLoading) {
items.push(LOADING_ITEM)
renderItem = () => <Text style={styles.loading}>Loading...</Text>
renderItem = () => <PostFeedLoadingPlaceholder />
} else if (uiState.currentView.hasError) {
items.push({
_reactKey: '__error__',