NavigatorIOS
NavigatorIOS
is a wrapper around UINavigationController
, enabling you to implement a navigation stack. It works exactly the same as it would on a native app using UINavigationController
, providing the same animations and behavior from UIKit.
As the name implies, it is only available on iOS. Take a look at React Navigation
for a cross-platform solution in JavaScript, or check out either of these components for native solutions: native-navigation, react-native-navigation.
To set up the navigator, provide the initialRoute
prop with a route object. A route object is used to describe each scene that your app navigates to. initialRoute
represents the first route in your navigator.
import React, { Component, PropTypes } from 'react';
import { NavigatorIOS, Text } from 'react-native';
export default class NavigatorIOSApp extends Component {
render() {
return (
<NavigatorIOS
initialRoute={{
component: MyScene,
title: 'My Initial Scene',
}}
style={{flex: 1}}
/>
);
}
}
class MyScene extends Component {
static propTypes = {
title: PropTypes.string.isRequired,
navigator: PropTypes.object.isRequired,
}
_onForward = () => {
this.props.navigator.push({
title: 'Scene ' + nextIndex,
});
}
render() {
return (
<View>
<Text>Current Scene: { this.props.title }</Text>
<TouchableHighlight onPress={this._onForward}>
<Text>Tap me to load the next scene</Text>
</TouchableHighlight>
</View>
)
}
}
In this code, the navigator renders the component specified in initialRoute, which in this case is MyScene
. This component will receive a route
prop and a navigator
prop representing the navigator. The navigator's navigation bar will render the title for the current scene, "My Initial Scene".
You can optionally pass in a passProps
property to your initialRoute
. NavigatorIOS
passes this in as props to the rendered component:
initialRoute={{
component: MyScene,
title: 'My Initial Scene',
passProps: { myProp: 'foo' }
}}
You can then access the props passed in via {this.props.myProp}
.
Handling Navigation
To trigger navigation functionality such as pushing or popping a view, you have access to a navigator
object. The object is passed in as a prop to any component that is rendered by NavigatorIOS
. You can then call the relevant methods to perform the navigation action you need:
class MyView extends Component {
_handleBackPress() {
this.props.navigator.pop();
}
_handleNextPress(nextRoute) {
this.props.navigator.push(nextRoute);
}
render() {
const nextRoute = {
component: MyView,
title: 'Bar That',
passProps: { myProp: 'bar' }
};
return(
<TouchableHighlight onPress={() => this._handleNextPress(nextRoute)}>
<Text style={{marginTop: 200, alignSelf: 'center'}}>
See you on the other nav {this.props.myProp}!
</Text>
</TouchableHighlight>
);
}
}
You can also trigger navigator functionality from the NavigatorIOS
component:
class NavvyIOS extends Component {
_handleNavigationRequest() {
this.refs.nav.push({
component: MyView,
title: 'Genius',
passProps: { myProp: 'genius' },
});
}
render() {
return (
<NavigatorIOS
ref='nav'
initialRoute={{
component: MyView,
title: 'Foo This',
passProps: { myProp: 'foo' },
rightButtonTitle: 'Add',
onRightButtonPress: () => this._handleNavigationRequest(),
}}
style={{flex: 1}}
/>
);
}
}
The code above adds a _handleNavigationRequest
private method that is invoked from the NavigatorIOS
component when the right navigation bar item is pressed. To get access to the navigator functionality, a reference to it is saved in the ref
prop and later referenced to push a new scene into the navigation stack.
Navigation Bar Configuration
Props passed to NavigatorIOS
will set the default configuration for the navigation bar. Props passed as properties to a route object will set the configuration for that route's navigation bar, overriding any props passed to the NavigatorIOS
component.
_handleNavigationRequest() {
this.refs.nav.push({
//...
passProps: { myProp: 'genius' },
barTintColor: '#996699',
});
}
render() {
return (
<NavigatorIOS
//...
style={{flex: 1}}
barTintColor='#ffffcc'
/>
);
}
In the example above the navigation bar color is changed when the new route is pushed.
Props
initialRoute
barTintColor
interactivePopGestureEnabled
itemWrapperStyle
navigationBarHidden
shadowHidden
tintColor
titleTextColor
translucent
Methods
push
popN
pop
replaceAtIndex
replace
replacePrevious
popToTop
popToRoute
replacePreviousAndPop
resetTo
Reference
Props
initialRoute
NavigatorIOS uses route
objects to identify child views, their props, and navigation bar configuration. Navigation operations such as push operations expect routes to look like this the initialRoute
.
Type | Required |
---|---|
object: {component: function,title: string,titleImage: Image.propTypes.source,passProps: object,backButtonIcon: Image.propTypes.source,backButtonTitle: string,leftButtonIcon: Image.propTypes.source,leftButtonTitle: string,leftButtonSystemIcon: Object.keys(SystemIcons),onLeftButtonPress: function,rightButtonIcon: Image.propTypes.source,rightButtonTitle: string,rightButtonSystemIcon: Object.keys(SystemIcons),onRightButtonPress: function,wrapperStyle: View.style,navigationBarHidden: bool,shadowHidden: bool,tintColor: string,barTintColor: string,titleTextColor: string,translucent: bool} | Yes |
barTintColor
The default background color of the navigation bar.
Type | Required |
---|---|
string | No |
interactivePopGestureEnabled
Boolean value that indicates whether the interactive pop gesture is enabled. This is useful for enabling/disabling the back swipe navigation gesture.
If this prop is not provided, the default behavior is for the back swipe gesture to be enabled when the navigation bar is shown and disabled when the navigation bar is hidden. Once you've provided the interactivePopGestureEnabled
prop, you can never restore the default behavior.
Type | Required |
---|---|
bool | No |
itemWrapperStyle
The default wrapper style for components in the navigator. A common use case is to set the backgroundColor
for every scene.
Type | Required |
---|---|
View.style | No |
navigationBarHidden
Boolean value that indicates whether the navigation bar is hidden by default.
Type | Required |
---|---|
bool | No |
shadowHidden
Boolean value that indicates whether to hide the 1px hairline shadow by default.
Type | Required |
---|---|
bool | No |
tintColor
The default color used for the buttons in the navigation bar.
Type | Required |
---|---|
string | No |
titleTextColor
The default text color of the navigation bar title.
Type | Required |
---|---|
string | No |
translucent
Boolean value that indicates whether the navigation bar is translucent by default
Type | Required |
---|---|
bool | No |
Methods
push()
push((route: object));
Navigate forward to a new route.
Parameters:
Name | Type | Required | Description |
---|---|---|---|
route | object | Yes | The new route to navigate to. |
popN()
popN((n: number));
Go back N scenes at once. When N=1, behavior matches pop()
.
Parameters:
Name | Type | Required | Description |
---|---|---|---|
n | number | Yes | The number of scenes to pop. |
pop()
pop();
Pop back to the previous scene.
replaceAtIndex()
replaceAtIndex((route: object), (index: number));
Replace a route in the navigation stack.
Parameters:
Name | Type | Required | Description |
---|---|---|---|
route | object | Yes | The new route that will replace the specified one. |
index | number | Yes | The route into the stack that should be replaced. If it is negative, it counts from the back of the stack. |
replace()
replace((route: object));
Replace the route for the current scene and immediately load the view for the new route.
Parameters:
Name | Type | Required | Description |
---|---|---|---|
route | object | Yes | The new route to navigate to. |
replacePrevious()
replacePrevious((route: object));
Replace the route/view for the previous scene.
Parameters:
Name | Type | Required | Description |
---|---|---|---|
route | object | Yes | The new route to will replace the previous scene. |
popToTop()
popToTop();
Go back to the topmost item in the navigation stack.
popToRoute()
popToRoute((route: object));
Go back to the item for a particular route object.
Parameters:
Name | Type | Required | Description |
---|---|---|---|
route | object | Yes | The new route to navigate to. |
replacePreviousAndPop()
replacePreviousAndPop((route: object));
Replaces the previous route/view and transitions back to it.
Parameters:
Name | Type | Required | Description |
---|---|---|---|
route | object | Yes | The new route that replaces the previous scene. |
resetTo()
resetTo((route: object));
Replaces the top item and pop to it.
Parameters:
Name | Type | Required | Description |
---|---|---|---|
route | object | Yes | The new route that will replace the topmost item. |