问题
I'm trying to share an image to Facebook in React Native through the react-native-fbsdk package.
I have the following, copied almost completely from the docs, but I can't figure out how to format the imageUrl, I keep getting errors saying the SharingContent is invalid.
What am I doing wrong here?
const sharePhotoContent = {
contentType: 'photo',
photos: [
{
imageUrl: "./local/image/path.png",
userGenerated: false,
caption: "Hello World"
}
]
};
ShareDialog.canShow(sharePhotoContent).then(
function(canShow) {
if (canShow) {
return ShareDialog.show(sharePhotoContent);
}
}
).then(
function(result) {
if (result.isCancelled) {
AlertIOS.alert('Share cancelled');
} else {
AlertIOS.alert('Share success with postId: ' + result.postId);
}
},
function(error) {
AlertIOS.alert('Share fail with error: ' + error);
}
);
回答1:
You can use the react-native-image-picker https://github.com/marcshilling/react-native-image-picker to get the uri of the image and use it create a SharePhotoContent.
Also note that you need to have the facebook app installed in order to share an image.
回答2:
This is working fine for me
shareLinkWithShareDialog() {
let shareLinkContent = {
contentType: 'link',
contentUrl: 'https://www.facebook.com/images/fb_icon_325x325.png',
contentDescription: 'Facebook sharing is easy!'
}
ShareDialog.canShow(shareLinkContent).then((canShow) => {
if (canShow) return ShareDialog.show(shareLinkContent);
}
).then((result) => {
if (result.isCancelled) {
alert('Share cancelled');
} else {
alert('Share success with postId: ' + result.postId);
}
},
function(error) {
alert('Share fail with error: ' + error);
}
);
}
来源：https://stackoverflow.com/questions/37061266/share-an-image-with-react-native-fbsdk