RouterComponent.js

<Router createReducer={reducerCreate}>

    <Scene key="auth">
        <Scene
            key="sign_in"
            component={SignIn}
            app={app}
            initial={needSignIn}
            title="Sign in"
            type="reset"
            />
        <Scene
            key="sign_up"
            component={SignUp}
            app={app}
            title="Sign up"
            type="replace"
            leftTitle="Back"
            onLeft={() => Actions.sign_in()}
            />
    </Scene>

    <Scene
        key="drawer"
        component={NavigationDrawer}
        initial={!needSignIn}
        hideNavBar
        >
        <Scene
            key="main"
            tabs
            tabBarStyle={styles.tabBarStyle}
            tabBarSelectedItemStyle={styles.tabBarSelectedItemStyle}
            >
              
            <Scene
                key="news_list"
                component={NewsList}
                title="News"
                app={app}
                sceneStyle={{ marginTop: 65 }}
                icon={TabIcon}
                iconName="wifi-tethering"
                iconSize={24}
                />

            <Scene
                key="lucky_number"
                component={NewsList}
                title="Random"
                app={app}
                navigationBarStyle={{ backgroundColor: 'green' }}
                sceneStyle={{ marginTop: 65 }}
                icon={TabIcon}
                iconName="location-searching"
                iconSize={24}
                />

            <Scene
                key="prize"
                component={NewsList}
                title="Prize"
                app={app}
                navigationBarStyle={{ backgroundColor: 'yellow' }}
                sceneStyle={{ marginTop: 65 }}
                icon={TabIcon}
                iconName="trending-up"
                iconSize={24}
                />

            <Scene
                key="history"
                component={NewsList}
                title="History"
                app={app}
                navigationBarStyle={{ backgroundColor: 'yellow' }}
                sceneStyle={{ marginTop: 65 }}
                icon={TabIcon}
                iconName="history"
                iconSize={24}
                />

            <Scene key="profile" component={Profile} title="Profile" />
        </Scene>
    </Scene>
</Router>