Supply access to UITextView.secureTextEntry attribute on <TextInput />

[rmcvey]

Currently there is no way to make a native password field (outside of manual text masking), due to the UITextView.secureTextEntry attribute not being implemented.

[vishnevskiy]

There is already a PR #265 that does this :)

[rmcvey]

Great, thank you!

[mkonicek]

@rmcvey: #265 has been merged, you can close this issue.