QRcode未出现在android react-native上

Question

在iOS上会生成并呈现qrcode，但在android上不会出现。

const Interaction = props =>{
    return (
        <ImageBackground source={bgImage} style={styles.backgroundContainer}>
        <View style={styles.container}>
                 <View style={{flexDirection:'row'}}>
                         <Image source={logo} style={{left:20,top:10,width:screenWidth*0.40,height:screenHeight*0.045,resizeMode:'stretch'}}/>
                         <Text style={[styles.textStyle,{fontSize:25,left:screenWidth*0.12,top:screenHeight*0.015}]}>
                               {props.navigation.state.params.firstname}
                         </Text>
                         {
                     props.navigation.state.params.profileImage == profile ? 
                     <Image source={profile} style={{top:screenHeight*0.008,left:screenWidth*0.18,width:50,height:50}}/>  
                    : <Image source={{uri:props.navigation.state.params.profileImage}} style={{top:screenHeight*0.008,left:screenWidth*0.18,width:50,height:50,borderRadius:50/2}}/>  
                        }
                </View>

          <View style={{alignItems:'center',marginTop:screenHeight*0.04}}>
                 <Icons style={{color:'#FDBE31'}} name={'exchange'} size={45}/>
                 <View style={[styles.lines,{marginTop:screenHeight*0.02}]}></View>
                 <View style={[styles.lines,{top:screenHeight*0.55}]}></View>
                 <View style={{height:screenHeight*0.6}}>
                     <View style={{top:screenHeight*0.15,margin:0}}><QRCode size={screenWidth*0.6} value={props.navigation.state.params.token}/></View>
                 </View>
            </View>
        </View>

    </ImageBackground>
    );
};