Is this a bug report?

NO

Have you read the Contributing Guidelines?

YES

Environment

Environment:
OS: macOS Sierra 10.12.6
Node: 8.4.0
Yarn: 0.27.5
npm: 5.4.0
Watchman: 4.7.0
Xcode: Xcode 8.3.2 Build version 8E3004b
Android Studio: 2.3 AI-162.4069837

Packages: (wanted => installed)
react-native: 0.47.1 => 0.47.1
react: 16.0.0-alpha.12 => 16.0.0-alpha.12

Target Platform:Andorid (6.0)

Steps to Reproduce

1.Switch program to background
2.Wait a moment
3.Switch to foreground

Expected Behavior

I hope it works。
there is no interval between the text and the status bar

Actual Behavior

Not every time, not everyone, but with great regularity。
I found StatusBar is show ,but there are 20 dp between the text and the status bar.

Reproducible Demo

"use strict";
import React, {Component} from 'react';
import {
    View,
    Text,
    StatusBar,
    AppRegistry
} from 'react-native';
 export default class Pghd extends Component {

render() {

   return (
         <View style = {{flex:1,marginTop:20}}>
                  <StatusBar backgroudColor = {"#000"} barStyle= "default" translucent = {true}/>
                  <Text>{"this is test"}</Text>
          </View>
    );
  }
}
AppRegistry.registerComponent('pghd', () => Pghd);`