launchImageLibrary(options, response => {. //options is "photos"
        //console.log("response in pikcupImage : ", response);
        if (response.didCancel) {
          Alert.alert('Cancelled');
          return false;            
        } else if (response.errorCode || response.errorMessage) {
          console.log('User cancelled photo picker');
          return false;
        } else {
          //response.assets is object array
          let temp = [];
          response.assets.forEach((aset, i) => {      
            console.log("aset in picker : ", aset);
            extension = aset.fileName.slice(aset.fileName.lastIndexOf(".") + 1).toLowerCase();
            console.log(" extension ", extension);
            if ((mediaType === 'photo' && imageAllowedExtensions.includes(extension)) || (mediaType === 'video' && videoAllowedExtensions.includes(extension))) {
              aset.path = aset.uri;
              temp.push(aset);
            };                
          }); 
          if (temp && temp.length>0) updatePicks(temp);
          return true;
        }
      })