handle saving viewshot

src/components/StarterPack/QrCode.tsx

@@ -12,11 +12,14 @@ import {useTheme} from '#/alf'
 import {atoms as a} from '#/alf'
 import {Text} from '#/components/Typography'
 
-export function QrCode({
-  starterPack,
-}: {
+interface Props {
   starterPack: AppBskyGraphDefs.StarterPackView
-}) {
+}
+
+export const QrCode = React.forwardRef<ViewShot, Props>(function QrCode(
+  {starterPack},
+  ref,
+) {
   const t = useTheme()
   const {record} = starterPack
 
@@ -30,50 +33,18 @@ export function QrCode({
   }
 
   return (
-    <ViewShot>
+    <ViewShot ref={ref}>
       <LinearGradient
         colors={gradient}
         style={[
-          {width: 300, height: 440}, //😎
+          {width: 300, height: 440},
           a.align_center,
           a.px_sm,
-          a.py_5xl,
+          a.py_xl,
           a.rounded_sm,
           a.justify_between,
+          a.gap_md,
         ]}>
-        <View
-          style={[
-            a.absolute,
-            a.z_20,
-            {
-              top: 0,
-              left: 'auto',
-              right: 'auto',
-              height: 24,
-              width: 48,
-              borderBottomLeftRadius: 100,
-              borderBottomRightRadius: 100,
-              backgroundColor: 'transparent',
-            },
-          ]}
-        />
-        <View
-          style={[
-            a.absolute,
-            a.z_20,
-            {
-              bottom: 0,
-              left: 'auto',
-              right: 'auto',
-              height: 24,
-              width: 48,
-              borderTopLeftRadius: 100,
-              borderTopRightRadius: 100,
-              backgroundColor: 'transparent',
-            },
-          ]}
-        />
-
         <View style={[a.gap_sm]}>
           <Text
             style={[a.font_bold, a.text_3xl, a.text_center, {color: 'white'}]}>
@@ -84,7 +55,7 @@ export function QrCode({
           style={[a.font_bold, a.text_center, {color: 'white', fontSize: 18}]}>
           <Trans>Join the conversation</Trans>
         </Text>
-        <View style={[]}>
+        <View style={[a.rounded_sm, a.overflow_hidden]}>
           <QrCodeInner url="https://bsky.app" />
         </View>
 
@@ -107,45 +78,43 @@ export function QrCode({
       </LinearGradient>
     </ViewShot>
   )
-}
+})
 
 export function QrCodeInner({url}: {url: string}) {
   const t = useTheme()
 
   return (
-    <View style={[a.flex_shrink, a.rounded_md]}>
-      <QRCode
-        data={url}
-        style={[
-          a.rounded_sm,
-          {height: 200, width: 200, backgroundColor: '#f3f3f3'},
-        ]}
-        pieceSize={8}
-        padding={20}
-        // pieceLiquidRadius={2}
-        pieceBorderRadius={4.5}
-        outerEyesOptions={{
-          topLeft: {
-            borderRadius: [12, 12, 0, 12],
-            color: t.palette.primary_500,
-          },
-          topRight: {
-            borderRadius: [12, 12, 12, 0],
-            color: t.palette.primary_500,
-          },
-          bottomLeft: {
-            borderRadius: [12, 0, 12, 12],
-            color: t.palette.primary_500,
-          },
-        }}
-        innerEyesOptions={{borderRadius: 3}}
-        logo={{
-          href: require('../../../assets/logo.png'),
-          scale: 1.2,
-          padding: 2,
-          hidePieces: true,
-        }}
-      />
-    </View>
+    <QRCode
+      data={url}
+      style={[
+        a.rounded_sm,
+        {height: 200, width: 200, backgroundColor: '#f3f3f3'},
+      ]}
+      pieceSize={8}
+      padding={20}
+      // pieceLiquidRadius={2}
+      pieceBorderRadius={4.5}
+      outerEyesOptions={{
+        topLeft: {
+          borderRadius: [12, 12, 0, 12],
+          color: t.palette.primary_500,
+        },
+        topRight: {
+          borderRadius: [12, 12, 12, 0],
+          color: t.palette.primary_500,
+        },
+        bottomLeft: {
+          borderRadius: [12, 0, 12, 12],
+          color: t.palette.primary_500,
+        },
+      }}
+      innerEyesOptions={{borderRadius: 3}}
+      logo={{
+        href: require('../../../assets/logo.png'),
+        scale: 1.2,
+        padding: 2,
+        hidePieces: true,
+      }}
+    />
   )
 }

src/components/StarterPack/QrCodeDialog.tsx

@@ -1,5 +1,6 @@
 import React from 'react'
 import {View} from 'react-native'
+import ViewShot from 'react-native-view-shot'
 import * as FS from 'expo-file-system'
 import {AppBskyGraphDefs} from '@atproto/api'
 import {msg, Trans} from '@lingui/macro'
@@ -24,23 +25,21 @@ export function QrCodeDialog({
 }) {
   const {_} = useLingui()
 
-  // No types for this
-  // See https://github.com/tokkozhin/react-native-qrcode-styled/blob/main/example/src/examples/DownloadQR.tsx for usage
-  const qrCodeRef = React.useRef<any>()
+  const ref = React.useRef<ViewShot>(null)
 
   const onSavePress = () => {
-    qrCodeRef.current?.toDataURL(async (base64Code: string) => {
+    ref.current?.capture?.().then(async (uri: string) => {
       const filename = `${FS.cacheDirectory}/${nanoid(12)}.png`
-      await FS.writeAsStringAsync(filename, base64Code, {
-        encoding: FS.EncodingType.Base64,
-      })
+      await FS.copyAsync({from: uri, to: filename})
 
       await saveImageToMediaLibrary({uri: filename})
-      control.close(() => {
-        Toast.show(_(msg`QR code saved to your camera roll!`))
-      })
+      await FS.deleteAsync(filename)
+      Toast.show(_(msg`QR code saved to your camera roll!`))
+
+      control.close()
     })
   }
+
   return (
     <Dialog.Outer control={control}>
       <Dialog.Handle />
@@ -50,7 +49,7 @@ export function QrCodeDialog({
           <Text style={[a.font_bold, a.text_xl, a.text_center]}>
             Share this starter pack with friends!
           </Text>
-          <QrCode starterPack={starterPack} />
+          <QrCode starterPack={starterPack} ref={ref} />
           <Button
             label={_(msg`Save QR code`)}
             variant="solid"