我正在尝试创建具有不同类别过滤器的新闻应用。为此,我必须将道具传递到导航器中的不同屏幕,以便组件可以将道具用于获取api。 例如:
export default createMaterialTopTabNavigator({
Home: {
screen: HomeScreen,
navigationOptions:{
tabBarLabel: "Home",
},
props: {id: 1}
},
BeautyScreen: {
screen: HomeScreen,
navigationOptions:{
tabBarLabel: "Beauty tips",
},
props: {id: 2}
},
BusinessScreen: {
screen: HomeScreen,
navigationOptions:{
tabBarLabel: "Business related",
},
props: {id: 3}
},
CarsScreen: {
screen: HomeScreen,
navigationOptions:{
tabBarLabel: "Cars related",
},
props: {id: 4}
},
)}
如您所见,我可以将相同的HomeScreen
组件与不同的道具一起使用,例如,我可以传入api:fetch("https://some-api.com/?category=" + navigations.props.id)
。
这就是我现在所拥有的,我必须为具有不同api的基本相同组件为不同的屏幕创建不同的组件。
export default createMaterialTopTabNavigator({
Home: {
screen: HomeScreen,
navigationOptions:{
tabBarLabel: "Home",
}
},
BeautyScreen: {
screen: BeautyScreen,
navigationOptions:{
tabBarLabel: "Beauty tips",
}
},
BusinessScreen: {
screen: BusinessScreen,
navigationOptions:{
tabBarLabel: "Business related",
}
},
CarsScreen: {
screen: CarsScreen,
navigationOptions:{
tabBarLabel: "Cars related",
}
},
答案 0 :(得分:0)
我刚刚发现反应导航v3支持此功能
BeautyScreen: {
screen: OtherCategoriesScreens,
navigationOptions:{
tabBarLabel: "Beauty",
},
params: {
categories: [
{
name: "Fashion",
id: 144,
},
{
name: "Make up",
id: 143,
},
]
}
},
然后您可以在屏幕组件中使用this.props.navigation.getParam('categories')
来获取参数。