如何制作一个发布版的ionic应用？

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本文介绍如何通过gulp任务和cordova钩子保护Hybrid App的源代码，包括混淆JS代码、转换HTML模板、合并文件等步骤。

如何为Android APK签名，已经在[url=http://rensanning.iteye.com/blog/2030516]这里[/url]说过了。这里说说如何保护源代码，把Hybrid App（混合移动应用）工程变到发布的状态。对于Hybrid App，如果不做任何处理，把apk文件解压后在assets文件夹里就能看到所有的源代码。

以下通过gulp tasks和cordova hooks来保护你的源代码。
・gulp tasks - ionic serve时执行
・cordova hooks - ionic build/run时执行

[b]（0）创建一个ionic工程[/b]
cordova@5.0.0
ionic@1.3.20

C:\>ionic start myApp tabs

首先编译一个调试用的apk，以后的发布版apk作对比。

C:\>cd myApp
C:\myApp>cordova plugin add https://github.com/apache/cordova-plugin-whitelist.git
C:\myApp>ionic platform add android
C:\myApp>ionic build android
生成C:\myApp\platforms\android\build\outputs\apk\android-debug.apk

[b]（1）(cordova hook)JS代码的Lint[/b]
混淆JS代码的前提要保准JS代码没有错误。

安装jshint

C:\myApp>npm install jshint --save-dev
C:\myApp>npm install async --save-dev

hook文件

C:\myApp\hooks\after_prepare\01_jshint.js

编译

C:\myApp>ionic build android

[quote]Linting www/js/controllers.js
Errors in file www/js/controllers.js
9:4 -> Missing semicolon. -> }[/quote]

ionic的sample工程controllers.js有错误，第九行缺少分号。
修改错误提示，直到build成功。

[b]（2）(gulp task)把html模板转换为angularjs模板[/b]

安装gulp-angular-templatecache

C:\myApp>npm install gulp-angular-templatecache --save-dev

修改gulpfile.js

var templateCache = require('gulp-angular-templatecache');
var paths = {
  sass: ['./scss/**/*.scss'],
  templatecache: ['./www/templates/**/*.html']
};
gulp.task('templatecache', function (done) {
  gulp.src('./www/templates/**/*.html')
    .pipe(templateCache({standalone:true}))
    .pipe(gulp.dest('./www/js'))
    .on('end', done);
});
gulp.task('default', ['sass', 'templatecache']);
gulp.task('watch', function() {
  gulp.watch(paths.sass, ['sass']);
  gulp.watch(paths.templatecache, ['templatecache']);
});

修改ionic.project

{
  "name": "myApp",
  "app_id": "",
  "gulpStartupTasks": [
    "sass",
    "templatecache",
    "watch"
  ]
}

修改app.js

angular.module('starter', ['ionic', 'starter.controllers', 'starter.services', 'templates'])

修改index.html

<script src="js/templates.js"></script>

C:\myApp>npm install
C:\myApp>ionic serve
  生成C:\myApp\www\js\templates.js

把templates.js里的templateUrl改成和app.js的templateUrl一致
C:\myApp\www\js\templates.js
$templateCache.put("tabs.html", ...
->
$templateCache.put("templates/tabs.html", ...

[b]（3）(gulp task)开启ng-strict-di[/b]

安装gulp-ng-annotate

C:\myApp>npm install gulp-ng-annotate --save-dev

修改gulpfile.js

var ngAnnotate = require('gulp-ng-annotate');
var paths = {
  sass: ['./scss/**/*.scss'],
  templatecache: ['./www/templates/**/*.html'],
  ng_annotate: ['./www/js/*.js']
};
gulp.task('ng_annotate', function (done) {
  gulp.src('./www/js/*.js')
    .pipe(ngAnnotate({single_quotes: true}))
    .pipe(gulp.dest('./www/dist/dist_js/app'))
    .on('end', done);
});
gulp.task('default', ['sass', 'templatecache', 'ng_annotate']);
gulp.task('watch', function() {
  gulp.watch(paths.sass, ['sass']);
  gulp.watch(paths.templatecache, ['templatecache']);
  gulp.watch(paths.ng_annotate, ['ng_annotate']);
});

修改ionic.project

{
  "name": "myApp",
  "app_id": "",
  "gulpStartupTasks": [
    "sass",
    "templatecache",
    "ng_annotate",
    "watch"
  ]
}

修改index.html

<script src="dist/dist_js/app/app.js"></script>
<script src="dist/dist_js/controllers.js"></script>
<script src="dist/dist_js/services.js"></script>
<script src="dist/dist_js/templates.js"></script>

<body ng-app="starter" ng-strict-di>

C:\myApp>ionic serve

js会被重新生成到一下，并且严格符合注入标准
C:\myApp\www\dist\dist_js\app

[b]（4）(gulp task)合并JS、CSS文件[/b]

安装gulp-useref

C:\myApp>npm install gulp-useref --save-dev

修改gulpfile.js

var useref = require('gulp-useref');
var paths = {
  sass: ['./scss/**/*.scss'],
  templatecache: ['./www/templates/**/*.html'],
  ng_annotate: ['./www/js/*.js'],
  useref: ['./www/*.html']
};
gulp.task('useref', function (done) {
  var assets = useref.assets();
  gulp.src('./www/*.html')
    .pipe(assets)
    .pipe(assets.restore())
    .pipe(useref())
    .pipe(gulp.dest('./www/dist'))
    .on('end', done);
});
gulp.task('default', ['sass', 'templatecache', 'ng_annotate', 'useref']);
gulp.task('watch', function() {
  gulp.watch(paths.sass, ['sass']);
  gulp.watch(paths.templatecache, ['templatecache']);
  gulp.watch(paths.ng_annotate, ['ng_annotate']);
  gulp.watch(paths.useref, ['useref']);
});

修改ionic.project

{
  "name": "myApp",
  "app_id": "",
  "gulpStartupTasks": [
    "sass",
    "templatecache",
    "ng_annotate",
    "useref",
    "watch"
  ]
}

修改index.html

<!-- build:css dist_css/styles.css -->
<link href="css/style.css" rel="stylesheet">
<link href="css/ionic.app.css" rel="stylesheet">
<!-- endbuild -->

<!-- build:js dist_js/app.js -->
<script src="dist/dist_js/app/app.js"></script>
<script src="dist/dist_js/app/controllers.js"></script>
<script src="dist/dist_js/app/services.js"></script>
<script src="dist/dist_js/app/templates.js"></script>
<!-- endbuild -->

C:\myApp>ionic serve

生成以下文件：
C:\myApp\www\dist\index.html
C:\myApp\www\dist\dist_css\styles.css
C:\myApp\www\dist\dist_js\app.js

[b]（5）(cordova hook)混淆代码[/b]

安装cordova-uglify

C:\myApp>npm install cordova-uglify --save-dev
C:\myApp>npm instal mv --save-dev

C:\myApp\hooks\after_prepare
01_jshint.js
020_remove_sass_from_platforms.js
030_clean_dev_files_from_platforms.js
040_move_dist_files_to_platforms.js
050_clean_obfuscation.js
060_uglify.js
文件夹里已经有的uglify.js可以删掉。

C:\myApp>ionic build android
  发布版apk C:\myApp\platforms\android\build\outputs\apk\android-debug.apk

至此完成！完整的工程代码，[url=http://dl.iteye.com/topics/download/37f71219-d435-3413-bb36-4e1df3c86df9]点击下载[/url]。

assert文件夹对比，经过处理后只剩下了styles.css、app.js、index.html：
[img]http://dl2.iteye.com/upload/attachment/0107/8279/60ba59de-766d-3f0e-9949-7a920dedae2a.png[/img]

index.html对比
[img]http://dl2.iteye.com/upload/attachment/0107/8281/a73fa4a9-e012-311c-93a9-3f01967b8e88.png[/img]

参考：
https://www.airpair.com/ionic-framework/posts/production-ready-apps-with-ionic-framework