render() {
    return (
            <View style={{flex: 1}}>
            <Navigator style={{flex: 1}}
            renderScene={ this._renderScene.bind(this) }
            initialRoute={{ name: 'MainNews' }}/>
            </View>
        )

 }

 _renderScene(route, navigator) {
    if(route.name=='MainNews'){
        return
        <MainNews navigator={navigator}
        setProfData={this.setProfData.bind(this)}
        news={this.props.news}
        />
    }else if(route.name=='Profile'){
        return
        <Profile navigator={navigator}
        header={this.state.header}
        posts={this.state.posts}
        own={false}
        />
    }
}

_renderScene(route, navigator) {
    return
    <Bla Bla Bla/>
}