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An Android app to demonstrate react-native-material-design
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README.md

React Native Material Design Demo App [Android]

This repository contains a React Native project, implementing the react-native-material-design package.

View it online here! (Credits to Appetize for free hosting).

Please submit all issues to react-native-material-design.

Installation

Development

  1. Clone this repo.
  2. Run npm install.
  3. Ensure a device, or emulated Android image is connected (adb devices).
  4. Run react-native run-android.

If running on a device, run adb reverse tcp:8081 tcp:8081.

APK

To download the production/release APK, click here

Can I use this as a base project?

Of course. Please remember though it is not a "fit all" solution and you'll need to configure it for your own project needs.

To change the name of the project, edit android/app/src/res/values/strings.xml. To change the launcher icon of the project, change all of the ic_launcher.png icons within android/app/src/res/mipmap-XXXX/.

How it works

This Android only demo app has been designed to be as minimal and basic as possible, to avoid confusion.

Key points:

  • It's only working on Android for now.
  • Alt is used as a light weight flux implementation to handle application state.
  • A custom Navigate class has been made to handle route navigation. It's a wrapper around the native 'Navigator' API, and does not force any set ways of working - see below for more information.
  • Some aspects are dependant on React's context.

Each scene is located within ./src/scenes, while the Toolbar is global to the entire app and is located within ./src/components. The main entry point of the app is within index.android.js, here the app undergoes a few cycles of component mounting, wrapping the scenes within a Navigator, which is wrapped within a DrawerLayoutAndroid.

The refs for the drawer and navigator are created as application context, and are available when needed throughout the app. The navigator context however is an implementation of a custom Navigate class found in ./src/utils/Navigate, which allows for navigation around the app, and 'down' children components.

Navigate

The Navigate class needs to be instantiated on application boot, with a reference to React's Navigator API passed. An example of this can be found here.

Once instantiated, the class exposes a few methods to help with simple app navigation. First however, we must define our routes. The class looks for a routes.js file in the root of the src directory.

The class also handles hardwareBackPress events correctly, only exiting the app if we're on a parent route. Otherwise, it calls the back() method.

Routes

This is a simple object based pattern of components and their children, an example of which can be found here.

Top level objects are considered to be the "parent" scenes of your app, and are defined by object keys. Each object should contain a name and a component property. See below example.

Basic Routes Config Example
export default {

    parent: {
        title: 'Parent Scene',
        component: require('./scenes/SomeParentScene').default
    }

}

You can have as many parent key objects as you like.

If you wish to define some children of this route, simply add a children object, with the same pattern as above. See below example.

Advanced Routes Config Example
export default {

    parent: {
        title: 'Parent Scene',
        initialRoute: true, // this route will be show on app start
        component: require('./scenes/SomeParentScene').default,

        children: {
            child: {
                title: 'Child Scene',
                component: require('./scenes/SomeChildScene').default,
            }
        }
    },
    'Another Parent': { // can be called anything
        // title: 'Another Parent', // title is optional, defaults to the parent object key name 'Another Parent'
        component: require('./scenes/AnotherParentScene').default,

        children: {
            'Another Child': { // can be called anything
                // title: 'Another Child', // title is optional, will default to the parent object key name 'Another Child'
                component: require('./scenes/SomeOtherChildScene').default,
            },
            'Yet Another Child': { // can be called anything
                component: require('./scenes/SomeOtherChildScene').default,
            }
        }
    }

}

You can have as many children, and children of children as you like.

API

static getInitialRoute([optional] defaultRoute, [optional] routesConfig)
  • defaultRoute: Specify a parent route to return. By default however this will look for the first parent on your routes config with initialRoute: true, else, if no initial route specified it'll just return the first parent route.
  • routesConfig: Specify the routes config. This is not required if you have a routes.js file setup in /src.

Can be called without class instantiation, and is used to get an initial starting route to show initially.

This is handy for configuring initial routes, for example here.

Navigate.getInitialRoute('parent');

Optionally you can pass in the routes yourself via Navigate.getInitialRoute('parent', { ...some routes });

This can only be used with parent routes.

to(path, title, props)

Used to directly access any route from any location.

Navigate.to('root.child', 'Custom Title', { some: 'prop' });

path: Required path to a route. title: Optional title to use for the route. If left blank, the title/route name from the routes.js file will be used. props: Option object of props to pass to the next scene.

back(title, props)

Used when going to the parent of the current route.

Navigate.back('Custom Title', { some: 'prop' });

title: Optional title to use for the route. If left blank, the title/route name from the routes.js file will be used. props: Option object of props to pass to the parent scene.

forward(path, title, props)

Used when going to a child of the current route.

// Assuming the current route is "root":
Navigate.forward('child', 'Custom Title', { some: 'prop' });
Navigate.forward(null, 'Custom Title', { some: 'prop' });

path: Optional path to a child route. If no path is supplied, the first child of the parent defined in routes.js will be used. title: Optional name to use for the route. If left blank, the title/route name from the routes.js file will be used. props: Option object of props to pass to the next scene.

isChild

An exposed boolean value on the class updated on route change if applicable.

If true, the current route is a child. If false, the current route has no parent.

currentRoute

An exposed object which is updated on route change, containing the values of the current route.

navigator

The initial reference to the Navigator API.

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