Q1：模擬器正常顯示，iOS真機(jī)不顯示，Xcode輸出如下

 WeexDemo[1424:1061554] [fg100,149,237; <Weex>[info]WXBridgeContext.m:265, No send queue for instance:0, may it has been destroyed so method:fireEvent is ignored [;**
 WeexDemo[1424:1061559] [fg255,0,0; <Weex>[error]WXUtility.m:206, Error Domain=NSCocoaErrorDomain Code=3840 "Invalid value around character 0." UserInfo={NSDebugDescription=Invalid value around character 0.} [;**
WeexDemo[1424:1061549] [fg255,0,0; <Weex>[error]WXUtility.m:206, Error Domain=NSCocoaErrorDomain Code=3840 "Invalid value around character 0." UserInfo={NSDebugDescription=Invalid value around character 0.} [;**

A1：由于native中CURRENT_IP 與電腦主機(jī)號不一致

Q2: 使用repeat時，當(dāng)數(shù)據(jù)源的個數(shù)沒發(fā)生改變時，UI不會刷新?

我在使用repeat的基本方式去實現(xiàn)以下重復(fù)組件，發(fā)現(xiàn)當(dāng)我的數(shù)據(jù)源length沒有發(fā)生變化時，我的組件數(shù)據(jù)是不會被更新的。問題原因未知.

問題代碼:

        <scroller style="width:{{scrollertWidth}}; height:{{deviceHeight}};" class="scroller">
            <div style="flex-direction:row;"> 
                <div repeat="{{children}}" >
                    <div class="subKind" style="width:{{subKindWidth}}; height:{{subKindWidth + 30}}" kindid="{{id}}" onclick="kindClicked">
                        //<img src="{{icon}}" class="img" style="width:{{imgWidth}}; height:{{imgWidth}}; border-radius:{{imgWidth/2.0}}; margin-left:{{paddingLeft}}">
                        <text class="subText" style="width:{{subKindWidth}}">{{name}}</text>
                    </div>
                </div>  
            </div>
        </scroller>

A2：使用了repeat的擴(kuò)展方法 repeat="{{v in list}}",就可以自動刷新組件中的數(shù)據(jù)

新的代碼：

        <scroller style="width:{{scrollertWidth}}; height:{{deviceHeight}};" class="scroller">
            <div style="flex-direction:row;"> 
                <div repeat="{{v in children}}" >
                    <div class="subKind" style="width:{{subKindWidth}}; height:{{subKindWidth + 30}}" kindid="{{v.id}}" onclick="kindClicked">
                        //<img src="{{v.icon}}" class="img" style="width:{{imgWidth}}; height:{{imgWidth}}; border-radius:{{imgWidth/2.0}}; margin-left:{{paddingLeft}}">
                        <text class="subText" style="width:{{subKindWidth}}">{{v.name}}</text>
                    </div>
                </div>  
            </div>
        </scroller>

Q3: 使用weex init創(chuàng)建的項目，怎么只啟動一次服務(wù)，然后每次修改we文件，只要commond + s然后refresh就可以看到最新的修改效果

A3: 想要達(dá)到保存+刷新就能得到效果，可以打開項目中package.json文件，查看里面的scripts腳本指令：

{
  "name": "toomaoweex",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "build": "webpack",
    "dev": "webpack --watch",
    "serve": "serve -p 8080",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "babel-loader": "^6.2.5",
    "babel-plugin-transform-runtime": "^6.15.0",
    "babel-preset-es2015": "^6.14.0",
    "babel-runtime": "^6.11.6",
    "serve": "^1.4.0",
    "webpack": "^1.13.1",
    "weex-html5": "^0.3.0",
    "weex-loader": "^0.3.1"
  }
}

這時候就會發(fā)現(xiàn)，scripts提供了4個指令， 其中"dev": "webpack --watch"這個watch參數(shù)就表示可以監(jiān)聽，即當(dāng)你每次保存的時候，都會自動編譯的，我們只需要執(zhí)行 npm run dev &即可，&是表示后臺運行，然后再執(zhí)行npm run serve &開啟服務(wù)即可