Android: Calling TextInput instance's focus() after keyboard is closed via back button/submit doesn't bring up keyboard #11979

Description

Calling focus() on a TextInput instance after keyboard is closed via Android back or submit/enter soft key doesn't bring keyboard back up.

Obviously, you can just tap on the TextInput itself to bring the keyboard back up, but the expected behavior of calling focus() should still apply.

Reproduction

<TouchableOpacity onPress={() => this.textInput.focus()}>
   <Text>Focus</Text>
</TouchableOpacity>
<TextInput ref={(component) => this.textInput = component}/>

Tap TextInput or TouchableOpacity to focus & bring up keyboard. Press back to dismiss keyboard. Tap TouchableOpacity -> no keyboard.

Additional Information

• React Native version: 0.38
• Platform: Android
• Operating System: All