如何分享图片和文字到Facebook应用程序

Question

我正在尝试分享图像和文本。 当我这样做时：

Intent share = new Intent(Intent.ACTION_SEND);
        share.setType("image/*");
        ByteArrayOutputStream bytes = new ByteArrayOutputStream();
        screenshot.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
        File f = new File(Environment.getExternalStorageDirectory()
                + File.separator + "temporary_file.jpg");
        try {
            f.createNewFile();
            FileOutputStream fo = new FileOutputStream(f);
            fo.write(bytes.toByteArray());
        } catch (IOException e) {
            e.printStackTrace();
        }
        share.putExtra(Intent.EXTRA_STREAM,
                Uri.parse("file:///sdcard/temporary_file.jpg"));
        share.putExtra(android.content.Intent.EXTRA_TEXT, textToShare);
        startActivityForResult(Intent.createChooser(share, "Share Image"),
                FROM_SHARE);

它适用于所有应用程序（从弹出对话框中选择，如 Gmail），除了 facebook，facebook 只接受图像而不接受文本。 有什么办法可以将带有图像的额外文本传递到 Facebook 应用程序吗？ 谢谢！

Answer 1

FACEBOOK 中有一个错误，我也有同样的问题，如果你真的想这样做，无论如何你需要使用 facebook SDK 并使用 Facebook ShareDialog。

Answer 2

节点包：https://www.npmjs.com/package/react-native-share

// 用于将本机 AAP 反应到 Instagram 上的多个图像共享，因此只有 ios 端您可以共享多个选择的图像

in the android side android does not support multiple image share on feeds on Instagram due to Instagram private 

----> 在 Facebook 上，您可以在下面的帖子中分享多个图像，同样的代码也可以在 Facebook 上使用（Android 和 ios）

here is a code for multiple share on ios side 


  const shareMultipleImage = async () => {
    try {

      const instagramAvailable =  Platform.OS == 'android' ? await checkPackage() : await checkInstagramInstalled()
          if (!instagramAvailable) {
            const url = Platform.OS === 'android'
              ? 'https://play.google.com/store/apps/details?id=com.instagram.android&hl=en&gl=US'
              : 'https://apps.apple.com/in/app/instagram/id389801252';
            
            if (await Linking.canOpenURL(url)) {
              Linking.openURL(url);
            }
            return; // Stop execution if Instagram is not available
          }
      let localFilePaths = [];
  
      for (let i = 0; i < images.length; i++) {
        const { uri } = images[i];
  
        if (uri.startsWith('file:///')) {
          localFilePaths.push(uri);
        } else {
          const localFilePath = `${RNFS.CachesDirectoryPath}/image${i + 1}.jpg`;
          const downloadOptions = {
            fromUrl: uri,
            toFile: localFilePath,
          };
  
          try {
            await RNFS.downloadFile(downloadOptions).promise;
            localFilePaths.push('file://' + localFilePath);
          } catch (error) {
            console.log('Error downloading file:', error);
            // Handle error (e.g., skip this image)
            continue;
          }
        }
      }
  
      const shareOptions = {
        urls: localFilePaths,
        type: 'image/*',
      };
  
      await Share.open(shareOptions);
  
    } catch (error) {
      console.log('Error sharing to Instagram:', error);
  
      if (error && error.message === "User did not share") {
        const url = 'https://www.instagram.com/';
        const supported = await Linking.canOpenURL(url);
  
        if (supported) {
          Linking.openURL(url);
        } else {
          console.log('Instagram not installed', 'Please install Instagram to continue.');
        }
      }
    }
  };


// for single share is support both side android and ios 

here is a code for single share 

  const shareImage = async (uri) => {
    try {
      let instagramAvailable = false;
      
      if (Platform.OS === 'android') {
        instagramAvailable = await checkPackage();
      } else if (Platform.OS === 'ios') {
        instagramAvailable = await checkInstagramInstalled();
      }
  
      if (!instagramAvailable) {
        // Instagram is not available, redirect to the respective app store
        const url = Platform.OS === 'android'
          ? 'https://play.google.com/store/apps/details?id=com.instagram.android&hl=en&gl=US'
          : 'https://apps.apple.com/in/app/instagram/id389801252';
        
        if (await Linking.canOpenURL(url)) {
          Linking.openURL(url);
        }
      } else {
        // Instagram is installed, proceed with sharing the image
        const shareOptions = {
          url: uri.startsWith('file:///') ? uri : `file://${RNFS.CachesDirectoryPath}/image.png`,
          type: 'image/*',
          failOnCancel: false
        };
  
        if (!uri.startsWith('file:///')) {
          await RNFS.downloadFile({ fromUrl: uri, toFile: shareOptions.url }).promise;
        }
  
        await Share.open(shareOptions);
      }
    } catch (error) {
      console.error('Error sharing to Instagram:', error);
      // Handle error as needed
    }
  };