Clear image cache button (#8190)

assets/icons/broomSparkle_stroke2_corner2_rounded.svg

···
+<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24"><path fill="#000" fill-rule="evenodd" d="M20.494 2.13a1 1 0 0 1 .375 1.364l-4.658 8.2.263.095c1.52.554 2.737 2.062 2.484 3.864-.336 2.393-1.358 4.12-3.245 6.047a1 1 0 0 1-1.102.222l-9.5-4a1 1 0 0 1-.166-1.754c1.458-.971 2.623-1.923 3.498-3.3 1.057-1.662 3.154-2.854 5.281-2.08l.58.212 4.827-8.494a1 1 0 0 1 1.363-.375ZM13.04 12.669c-.983-.358-2.19.142-2.91 1.273-.737 1.16-1.628 2.054-2.601 2.828l1.708.72a.2.2 0 0 0 .177-.011l2.13-1.218a.2.2 0 0 1 .29.237l-.551 1.653a.2.2 0 0 0 .112.247l3.353 1.413c1.359-1.494 1.994-2.76 2.23-4.435.094-.675-.359-1.405-1.188-1.707l-2.75-1ZM4.407 7.184a.5.5 0 0 1-.224.224l-1.29.645a.5.5 0 0 0 0 .894l1.29.645a.5.5 0 0 1 .224.224l.645 1.29a.5.5 0 0 0 .894 0l.645-1.29a.5.5 0 0 1 .224-.224l1.29-.645a.5.5 0 0 0 0-.894l-1.29-.645a.5.5 0 0 1-.224-.224l-.645-1.29a.5.5 0 0 0-.894 0l-.645 1.29ZM9.559 3.72a.36.36 0 0 0 .16-.16l.46-.921a.357.357 0 0 1 .64 0l.46.921q.054.106.16.16l.921.46a.357.357 0 0 1 0 .64l-.921.46a.36.36 0 0 0-.16.16l-.46.921a.357.357 0 0 1-.64 0l-.46-.921a.36.36 0 0 0-.16-.16l-.921-.46a.357.357 0 0 1 0-.64l.921-.46Z" clip-rule="evenodd"/></svg>

src/components/icons/BroomSparkle.tsx

···
+import {createSinglePathSVG} from './TEMPLATE'
+
+export const BroomSparkle_Stroke2_Corner2_Rounded = createSinglePathSVG({
+  path: 'M20.494 2.13a1 1 0 0 1 .375 1.364l-4.658 8.2.263.095c1.52.554 2.737 2.062 2.484 3.864-.336 2.393-1.358 4.12-3.245 6.047a1 1 0 0 1-1.102.222l-9.5-4a1 1 0 0 1-.166-1.754c1.458-.971 2.623-1.923 3.498-3.3 1.057-1.662 3.154-2.854 5.281-2.08l.58.212 4.827-8.494a1 1 0 0 1 1.363-.375ZM13.04 12.669c-.983-.358-2.19.142-2.91 1.273-.737 1.16-1.628 2.054-2.601 2.828l1.708.72a.2.2 0 0 0 .177-.011l2.13-1.218a.2.2 0 0 1 .29.237l-.551 1.653a.2.2 0 0 0 .112.247l3.353 1.413c1.359-1.494 1.994-2.76 2.23-4.435.094-.675-.359-1.405-1.188-1.707l-2.75-1ZM4.407 7.184a.5.5 0 0 1-.224.224l-1.29.645a.5.5 0 0 0 0 .894l1.29.645a.5.5 0 0 1 .224.224l.645 1.29a.5.5 0 0 0 .894 0l.645-1.29a.5.5 0 0 1 .224-.224l1.29-.645a.5.5 0 0 0 0-.894l-1.29-.645a.5.5 0 0 1-.224-.224l-.645-1.29a.5.5 0 0 0-.894 0l-.645 1.29ZM9.559 3.72a.36.36 0 0 0 .16-.16l.46-.921a.357.357 0 0 1 .64 0l.46.921q.054.106.16.16l.921.46a.357.357 0 0 1 0 .64l-.921.46a.36.36 0 0 0-.16.16l-.46.921a.357.357 0 0 1-.64 0l-.46-.921a.36.36 0 0 0-.16-.16l-.921-.46a.357.357 0 0 1 0-.64l.921-.46Z',
+})

src/screens/Settings/AboutSettings.tsx

···
 import {useMemo} from 'react'
 import {Platform} from 'react-native'
 import {setStringAsync} from 'expo-clipboard'
+import * as FileSystem from 'expo-file-system'
+import {Image} from 'expo-image'
 import {msg, Trans} from '@lingui/macro'
 import {useLingui} from '@lingui/react'
-import {NativeStackScreenProps} from '@react-navigation/native-stack'
+import {type NativeStackScreenProps} from '@react-navigation/native-stack'
+import {useMutation} from '@tanstack/react-query'
 import {Statsig} from 'statsig-react-native-expo'
 
 import {appVersion, BUNDLE_DATE, bundleInfo} from '#/lib/app-info'
 import {STATUS_PAGE_URL} from '#/lib/constants'
-import {CommonNavigatorParams} from '#/lib/routes/types'
+import {type CommonNavigatorParams} from '#/lib/routes/types'
+import {isAndroid, isNative} from '#/platform/detection'
 import {useDevModeEnabled} from '#/state/preferences/dev-mode'
 import * as Toast from '#/view/com/util/Toast'
 import * as SettingsList from '#/screens/Settings/components/SettingsList'
+import {BroomSparkle_Stroke2_Corner2_Rounded as BroomSparkleIcon} from '#/components/icons/BroomSparkle'
 import {CodeLines_Stroke2_Corner2_Rounded as CodeLinesIcon} from '#/components/icons/CodeLines'
 import {Globe_Stroke2_Corner0_Rounded as GlobeIcon} from '#/components/icons/Globe'
 import {Newspaper_Stroke2_Corner2_Rounded as NewspaperIcon} from '#/components/icons/Newspaper'
 import {Wrench_Stroke2_Corner2_Rounded as WrenchIcon} from '#/components/icons/Wrench'
 import * as Layout from '#/components/Layout'
+import {Loader} from '#/components/Loader'
 import {OTAInfo} from './components/OTAInfo'
 
 type Props = NativeStackScreenProps<CommonNavigatorParams, 'AboutSettings'>
 export function AboutSettingsScreen({}: Props) {
-  const {_} = useLingui()
+  const {_, i18n} = useLingui()
   const [devModeEnabled, setDevModeEnabled] = useDevModeEnabled()
   const stableID = useMemo(() => Statsig.getStableID(), [])
 
+  const {mutate: onClearImageCache, isPending: isClearingImageCache} =
+    useMutation({
+      mutationFn: async () => {
+        const freeSpaceBefore = await FileSystem.getFreeDiskStorageAsync()
+        await Image.clearDiskCache()
+        const freeSpaceAfter = await FileSystem.getFreeDiskStorageAsync()
+        const spaceDiff = freeSpaceBefore - freeSpaceAfter
+        return spaceDiff * -1
+      },
+      onSuccess: sizeDiffBytes => {
+        if (isAndroid) {
+          Toast.show(
+            _(
+              msg({
+                message: `Image cache cleared, freed ${i18n.number(
+                  Math.abs(sizeDiffBytes / 1024 / 1024),
+                  {
+                    notation: 'compact',
+                    style: 'unit',
+                    unit: 'megabyte',
+                  },
+                )}`,
+                comment: `Android-only toast message which includes amount of space freed using localized number formatting`,
+              }),
+            ),
+          )
+        } else {
+          Toast.show(_(msg`Image cache cleared`))
+        }
+      },
+    })
+
   return (
     <Layout.Screen>
       <Layout.Header.Outer>
···
               <Trans>System log</Trans>
             </SettingsList.ItemText>
           </SettingsList.LinkItem>
+          {isNative && (
+            <SettingsList.PressableItem
+              onPress={() => onClearImageCache()}
+              label={_(msg`Clear image cache`)}
+              disabled={isClearingImageCache}>
+              <SettingsList.ItemIcon icon={BroomSparkleIcon} />
+              <SettingsList.ItemText>
+                <Trans>Clear image cache</Trans>
+              </SettingsList.ItemText>
+              {isClearingImageCache && <SettingsList.ItemIcon icon={Loader} />}
+            </SettingsList.PressableItem>
+          )}
           <SettingsList.PressableItem
             label={_(msg`Version ${appVersion}`)}
             accessibilityHint={_(msg`Copies build version to clipboard`)}