Added URI support

[ujwal-setlur]

Currently, emails cannot be attached on android unless the attachment is on an external storage. This can be resolved by:

1. Using a FileProvider such as a react-native-file-provider so that internal files are exposed as contentUri

2. Code changes in RNMailModule.java to check if the path is a URI or a file path

      import android.webkit.URLUtil;

      if (attachment.hasKey("path") && !attachment.isNull("path")) {
        String path = attachment.getString("path");
        Uri p;
        // Check for valid URI
        if (URLUtil.isValidUrl(path)) {
          p = Uri.parse(path);
        }
        // Else this is an absolute file path
        else {
          File file = new File(path);
          p = Uri.fromFile(file);
        }
        i.putExtra(Intent.EXTRA_STREAM, p);
      }

[sakarit-zz]

Please merge

[ghost]

is this working?

[sakarit-zz]

Well... the code above works, but I couldn't get the attachments to Gmail app. I tried using react-native-file-provider and added the provider settings to AndroidManifest.xml, but it just doesn't work (spent a whole day trying to get it to work). It seems that Gmail app only accepts attachments from the external storage area..

I gave up and tried react-native-mail-compose. It works for Android, but the file has to be read as base64 string so I'm using react-native-fetch-blob for it (I already had it in my project).

[ghost]

i need to attach pdf's into the gmail app, so you recommend to use react-native-mail-compose?

[sakarit-zz]

Yes! Use it with react-native-fetch-blob so you can read the files as base64 encoded strings out of the box.

https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API#readfilepath-encodingpromise

[ghost]

thx so much :D

[ujwal-setlur]

It worked for me with Gmail

[ThomasStubbe]

Please merge this!