Summary:
Explain the **motivation** for making this change. What existing problem does the pull request solve?
This adds support for a text field that the user can click-and-drag to select text (which can then be copied using the native selected-text-hover-widget).
I'd love to add this to iOS too, but iOS appears to draw glyphs directly to the screen for its <Text> widget (versus using UITextField), so it might be too difficult to support there. But at least I can support my Android users with this change.
Let me know if/what kind of "demonstrate the code is solid" you would like for this. A screenshot of selected text with this property set?
Closes https://github.com/facebook/react-native/pull/8028
Differential Revision: D3474196
Pulled By: bestander
fbshipit-source-id: 8d3656681265a0e6229bfa13ff2ae021e894d3cd
6cd712713b