hello-weex

hello-weex

A setting up demo of weex in ios platform.

Brief setup procedure

• Install weex-toolkit and weex-devtool npm package globally
• Use weex init command to generate an demo project
• Create an empty ios project in xcode
• Install sdk with cocoapods (or import from source code)
• Setup SDK weex environment
• Run webpack build process, run a server to serve the js bundle, run a debug server, build and run ios simulator
• Boot a ios simulator in shell xcrun instruments -w "iPhone 5s"

getting start

npm install

file structure

• src/*: all source code
• hello-weex-ios/*: ios intergate example
• app.js: entrance of the Weex page
• build/*: some build scripts
• dist/*: where places generated code
• assets/*: some assets for Web preview
• index.html: a page with Web preview and qrcode of Weex js bundle
• weex.html: Web render
• .babelrc: babel config (preset-2015 by default)
• .eslintrc: eslint config (standard by default)

npm scripts

# build both two js bundles for Weex and Web
npm run build

# build the two js bundles and watch file changes
npm run dev

# start a Web server at 8080 port
npm run serve

# start weex-devtool for debugging with native
npm run debug

Integrate ios && Devtool

Podfile

CocoaPods dependencies

source '[email protected]:CocoaPods/Specs.git' 
target 'hello-weex-ios' do
    platform :ios, '7.0' 
    pod 'WeexSDK', '~> 0.11.0'
    pod 'WXDevtool', '~> 0.9.5'
end

pod install

Note: After install dependencies you need to open the project with the newly generated workspace file (**.xcworkspace).

weex-ios-sdk

// File: AppDelegate.m
#import <WeexSDK/WeexSDK.h>

// Add to method "didFinishLaunchingWithOptions"
//init sdk enviroment
[WXSDKEngine initSDKEnviroment];
//set the log level
[WXLog setLogLevel: WXLogLevelAll];

// File: ViewController.h
#import <WeexSDK/WXSDKInstance.h>

// Delclare properites
@property (nonatomic, strong) WXSDKInstance *instance;
@property (nonatomic, strong) UIView *weexView;

- (void)viewDidLoad {
    .......
    [self render];
    .......
}

// Instanciate the weex instance
- (void)render {
    // Destroy the current weex instance
    [_instance destroyInstance];
    
    // The url of the JS bundle
    NSURL *url = [NSURL URLWithString: @"http://100.84.234.5:8080/dist/app.weex.js"];
    CGFloat width = self.view.frame.size.width;

    // initiate weex instance
    _instance = [[WXSDKInstance alloc] init];
    _instance.viewController = self;
    _instance.frame = CGRectMake(0, 0, width, CGRectGetHeight(self.view.frame));
    __weak typeof(self) weakSelf = self;
    _instance.onCreate = ^(UIView *view) {
        weakSelf.weexView = view;
        [weakSelf.view addSubview:weakSelf.weexView];
    };
    
    
    NSString *randomURL = [NSString stringWithFormat:@"%@%@random=%d",url.absoluteString,url.query?@"&":@"?",arc4random()];
    // call the renderWith URL Method
    [_instance renderWithURL:[NSURL URLWithString:randomURL] options:@{@"bundleUrl":url.absoluteString} data:nil];
}

- (void)dealloc {
    [_instance destroyInstance];
    ....
}

devtool

// File: ViewController.m
// import Library
#import <TBWXDevtool/WXDevtool.h>


- (void)viewDidLoad {
    ......
    // Launch the Devtool
    [WXDevTool launchDevToolDebugWithUrl:@"ws://100.84.234.5:8088/debugProxy/native"];

    // Add an event listener to refresh the weex view
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(notificationRefreshInstance:) name:@"RefreshInstance" object:nil];
    ......
}

// Add a refresh Event handler method to ViewController
- (void)notificationRefreshInstance:(NSNotification *)notification {
    // Refresh function,
    [self render];
}

// remove Event Oberver when dealloc
- (void)dealloc {
    ....
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

Watch files change

weex debug ./dist/app.weex.js

Android Integrate

See run-on-android-cn.md for android (in Chinese).

Note: AndroidManifest.xml file declare the structure of an android application

Implement WXImgLoaderProtocol

• Import a cocoapods dependencies called SDWebImage (version 3.7.x)
• Create an weex handler (WXImgLoaderDefaultImpl) which is an object-c interface to implement WXImgLoaderProtocol
• Register the image handler after init weex sdk environment

notes

Native bundle has not implement the image component, so <image> label doesn't work. You can config more babel, ESLint and PostCSS plugins in webpack.config.js.

Todos

• Build native code and Run simulator with command line tool
• Integrate weex in a swift project
• Try android platform also
• Web platform live reload