handleGallery = () => {
  ImagePicker.showImagePicker(options, (response) => {
    const metadata = {
      contentType: 'image/jpeg'
    }

    firebase.storage()
      .ref(`/files/teste.jpeg`)
      .putString(response.data, 'base64', metadata)
      .then(uploadedFile => {
          //success
          console.log("UPLOAD SUCCESS")
      })
      .catch(err => {
          //Error
          console.log("UPLOAD ERROR")
      });

    this.setState({
      avatarSource: source,
    });
  });
}