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Renderer</a></li></ul></div></li><li><div class="sidebar-group"><p class="sidebar-heading"><span>Advanced</span><!----></p><ul class="sidebar-group-items"><li><a href="/guide/advanced/asset-path.html" class="sidebar-link">Asset Path</a></li><li><a href="/guide/advanced/downgrade.html" class="sidebar-link">Downgrade</a></li><li><a href="/guide/advanced/use-vuex-and-vue-router.html" class="sidebar-link">Use Vuex and vue-router</a></li><li><a href="/guide/advanced/multi-size-screen.html" class="sidebar-link">Fit for multi-size screen</a></li></ul></div></li><li><div class="sidebar-group"><p class="sidebar-heading"><span>Contribute</span><!----></p><ul class="sidebar-group-items"><li><a href="/guide/contribute/how-to-contribute.html" class="sidebar-link">Join Weex community</a></li><li><a href="/guide/contribute/thanks.html" class="sidebar-link">Thanks</a></li></ul></div></li></ul></div><div class="page"><div class="content"><h2 id="swift-in-weex"><a href="#swift-in-weex" class="header-anchor">#</a> Swift In Weex</h2><p><a href="https://developer.apple.com/library/ios/documentation/Swift/Conceptual/BuildingCocoaApps/MixandMatch.html#//apple_ref/doc/uid/TP40014216-CH10-ID122" target="_blank" rel="noopener noreferrer">Swift and Objective-C<svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a> mix-up</p><p>a complete <a href="https://github.com/acton393/WeexSwiftSample.git" target="_blank" rel="noopener noreferrer">demo<svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a></p><h3 id="extend-module-using-swift"><a href="#extend-module-using-swift" class="header-anchor">#</a> extend module using swift</h3><p>As we export moudle method using macro and calling in runtime, so we can extend module using swift by <code>extension</code><code>bjective-C</code> class.</p><blockquote><p>You can also finish extending module by write an category for swift class in Objective-C class.</p></blockquote><ul><li><p>new <code>WXSwiftTestModule.h/m</code> and <code>WXSwiftTestModule.swift</code> file ，you will get a tip as follow during the creation |
| <img src="http://img3.tbcdn.cn/L1/461/1/b2ed3ee4a966953c0f98a17f34f6f05e7c91cc6b" alt="img"> |
| choose <code>Create Bridging Header</code>, as we need to access method in <code>Objective-C</code> in swift file, and the <code>Bridging header</code> can help us. And the format name of the header file is <code>yourTarget-Bridging-Header.h</code>, and mine is <code>WeexDemo-Bridging-Header.h</code>.</p></li><li><p>implementation in <code>WXSwiftTestModule.h/m</code></p><ul><li><p>WXSwiftTestModule.h</p><div class="language-swift extra-class"><pre class="language-swift"><code>#<span class="token keyword">import</span> <span class="token operator"><</span><span class="token builtin">Foundation</span><span class="token operator">/</span><span class="token builtin">Foundation</span><span class="token punctuation">.</span>h<span class="token operator">></span> |
| #<span class="token keyword">import</span> <span class="token operator"><</span><span class="token builtin">WeexSDK</span><span class="token operator">/</span><span class="token builtin">WeexSDK</span><span class="token punctuation">.</span>h<span class="token operator">></span> |
| |
| @interface <span class="token class-name">WXSwiftTestModule</span> <span class="token punctuation">:</span> <span class="token builtin">NSObject</span> <span class="token operator"><</span><span class="token builtin">WXModuleProtocol</span><span class="token operator">></span> |
| |
| @end |
| </code></pre></div></li><li><p>WXSwiftTestModule.m</p><p>you can search WeexDemo-Swift.h after building your project, Xcode will generate this file for us.</p><p>for simulator the file path may be:</p><div class="language- extra-class"><pre class="language-text"><code>weex/ios/playground/DerivedData/WeexDemo/Build/Intermediates/WeexDemo.build/Debug-iphonesimulator/WeexDemo.build/DerivedSources/WeexDemo-Swift.h |
| </code></pre></div><p>export method define in swift file.</p><div class="language-swift extra-class"><pre class="language-swift"><code>#<span class="token keyword">import</span> <span class="token string">"WXSwiftTestModule.h"</span> |
| #<span class="token keyword">import</span> <span class="token string">"WeexDemo-Swift.h"</span> <span class="token comment">// you need to import the header to make Objective-C code recognize the method defined in swift file.</span> |
| |
| @implementation <span class="token builtin">WXSwiftTestModule</span> |
| #pragma clang diagnostic push <span class="token comment">//forbid unknow selector warrning</span> |
| #pragma clang diagnostic ignored <span class="token string">"-Wundeclared-selector"</span> |
| |
| <span class="token function">WX_EXPORT_METHOD</span><span class="token punctuation">(</span>@<span class="token function">selector</span><span class="token punctuation">(</span>printSome<span class="token punctuation">:</span>callback<span class="token punctuation">:</span><span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token comment">//method name in Swift, you can get the final method name in `WeexDemo-Swift.h` as the convert of Xcode.</span> |
| |
| #pragma clang diagnostic pop |
| |
| @end |
| </code></pre></div></li></ul></li><li><p>in Swift |
| make an extension for Objective-C class <code>WXSwiftTestModule</code>, add a method, and then export it in Objective-C, then we can use it in javaScript.</p><ul><li><p>WXSwiftTestModule.swift</p><div class="language-swift extra-class"><pre class="language-swift"><code><span class="token keyword">import</span> <span class="token builtin">Foundation</span> |
| <span class="token keyword">public</span> <span class="token keyword">extension</span> <span class="token builtin">WXSwiftTestModule</span> <span class="token punctuation">{</span> |
| @<span class="token function">objc</span><span class="token punctuation">(</span>printSome<span class="token punctuation">:</span>callback<span class="token punctuation">:</span><span class="token punctuation">)</span> |
| <span class="token keyword">public</span> <span class="token keyword">func</span> <span class="token function">printSome</span><span class="token punctuation">(</span>someThing<span class="token punctuation">:</span><span class="token builtin">String</span><span class="token punctuation">,</span> callback<span class="token punctuation">:</span><span class="token builtin">WXModuleCallback</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> |
| <span class="token function">print</span><span class="token punctuation">(</span>someThing<span class="token punctuation">)</span> |
| <span class="token function">callback</span><span class="token punctuation">(</span>someThing<span class="token punctuation">)</span> |
| <span class="token punctuation">}</span> |
| <span class="token punctuation">}</span> |
| </code></pre></div></li></ul><p>we need to expose <code>WXSwiftTestModule</code><code>WXModuleCallback</code> in <code>WeexDemo-Bridging-Header</code> as our <code>Objective-C</code> need to access them.</p><p>Attention: Please add the <code>@objc</code> attribute to the method in the Swift file to avoid the error for the method cannot be found.</p><ul><li><p>WeexDemo-Bridging-Header.h</p><div class="language-swift extra-class"><pre class="language-swift"><code><span class="token comment">//</span> |
| <span class="token comment">// Use this file to import your target's public headers that you would like to expose to Swift.</span> |
| <span class="token comment">//</span> |
| #<span class="token keyword">import</span> <span class="token string">"WXSwiftTestModule.h"</span> |
| #<span class="token keyword">import</span> <span class="token string">"WeexSDK.h"</span> |
| </code></pre></div><p>by far we have finished our module using swift.</p></li></ul><h3 id="module-usage"><a href="#module-usage" class="header-anchor">#</a> module usage</h3><ul><li><p>register module to WeexSDK</p><div class="language-Objective-C extra-class"><pre class="language-text"><code>[WXSDKEngine registerModule:@"swifter" withClass:[WXSwiftTestModule class]]; |
| |
| </code></pre></div></li><li><p>front-end usage</p><div class="language-html extra-class"><pre class="language-html"><code><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>template</span><span class="token punctuation">></span></span> |
| <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>text</span><span class="token punctuation">></span></span>Swift Module<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>text</span><span class="token punctuation">></span></span> |
| <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>template</span><span class="token punctuation">></span></span> |
| |
| <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>script</span><span class="token punctuation">></span></span><span class="token script"><span class="token language-javascript"> |
| module<span class="token punctuation">.</span>exports <span class="token operator">=</span> <span class="token punctuation">{</span> |
| <span class="token function-variable function">ready</span><span class="token punctuation">:</span> <span class="token keyword">function</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> |
| <span class="token keyword">var</span> swifter <span class="token operator">=</span> weex<span class="token punctuation">.</span><span class="token function">require</span><span class="token punctuation">(</span><span class="token string">'swifter'</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| swifter<span class="token punctuation">.</span><span class="token function">printSome</span><span class="token punctuation">(</span><span class="token string">"https://www.taobao.com"</span><span class="token punctuation">,</span><span class="token keyword">function</span><span class="token punctuation">(</span><span class="token parameter">param</span><span class="token punctuation">)</span><span class="token punctuation">{</span> |
| <span class="token function">nativeLog</span><span class="token punctuation">(</span>param<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token punctuation">}</span> |
| <span class="token punctuation">}</span><span class="token punctuation">;</span> |
| </span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>script</span><span class="token punctuation">></span></span> |
| </code></pre></div></li></ul></li></ul></div><div class="page-nav"><p class="inner"><span class="prev"> |
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