title: react-native-fetch-blob IOS API openDocument not working
body: <p>I require showing applications in the IOS device capable of opening various file formats.I tried using react native share to achieve the same but options of copying file to other apps did not appear.So i tried using react native fetch blob. <strong>RNFetchBlob.fs.exists(fs.dirs.DocumentDir+'/sample.pdf')</strong> return true , meaning the file does exist but when i use <strong>RNFetchBlob.ios.openDocument(fs.dirs.DocumentDir+'/sample.pdf')</strong> nothing happens, not even an error but rather the success callback is called. Appreciate any help.</p>