tiefen_space_app/utils/saveImage.js

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JavaScript
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import * as MediaLibrary from "expo-media-library";
import * as FileSystem from "expo-file-system";
import Toast from "react-native-toast-message";
export default async function saveImage(uri) {
const permission = await MediaLibrary.requestPermissionsAsync();
if (permission.granted) {
const timestamp = new Date().getTime();
const fileUri = FileSystem.cacheDirectory + `${timestamp}.png`;
try {
const res = await FileSystem.downloadAsync(uri, fileUri);
await MediaLibrary.saveToLibraryAsync(res.uri);
Toast.show({
type: "success",
text1: "已保存到相册",
topOffset: 60,
});
return true;
} catch (err) {
console.error("FS Err: ", err);
return false;
}
} else {
Toast.show({
type: "error",
text1: "保存失败请检查APP媒体权限",
topOffset: 60,
});
return false;
}
}