{"id":10006280,"date":"2022-08-22T20:53:26","date_gmt":"2022-08-22T12:53:26","guid":{"rendered":"https:\/\/ityet.com\/?p=10006280"},"modified":"2022-08-22T20:53:26","modified_gmt":"2022-08-22T12:53:26","slug":"%e5%a4%a7%e5%b1%8f%e5%b0%8f%e7%a8%8b%e5%ba%8f%e6%8e%a2%e7%b4%a2%e5%ae%9e%e8%b7%b5-cube-%e6%8a%80%e6%9c%af%e8%a7%a3%e8%af%bb","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10006280","title":{"rendered":"\u5927\u5c4f\u5c0f\u7a0b\u5e8f\u63a2\u7d22\u5b9e\u8df5 | Cube \u6280\u672f\u89e3\u8bfb"},"content":{"rendered":"<p>\u7b80\u4ecb\uff1a\u00a0\u652f\u4ed8\u5b9d\u5ba2\u6237\u7aef\u6709\u6781\u5f3a\u7684\u52a8\u6001\u5316\u8bc9\u6c42\uff0c\u4e0d\u8bba iOS \u8fd8\u662f Android \u5e73\u53f0\uff0c\u91cd\u65b0\u5206\u53d1\u8f6f\u4ef6\u5305\u4ece\u65f6\u95f4\u4e0a\uff0c\u6548\u7387\u4e0a\u96be\u4ee5\u6ee1\u8db3\u4ea7\u54c1\u8fd0\u8425\u7684\u8981\u6c42\uff0c\u56e0\u6b64\u5ba2\u6237\u7aef\u52a8\u6001\u5316\u6280\u672f\u5e94\u8fd0\u800c\u751f\u3002 Cube \u8d77\u6e90\u4e8e 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1.5GHz\uff1b\u548c\u624b\u673a\u8bbe\u5907\u76f8\u6bd4\u8f83\uff0c\u6309\u624b\u673a\u6dd8\u5b9d\u7684\u8bbe\u5907\u8bc4\u5206\u4f53\u7cfb\u4e3a\u53c2\u7167\u7684\u8bdd\uff0c\u5168\u90e8\u90fd\u662f\u4f4e\u7aef\u8bbe\u5907\u3002\u6b63\u662f\u56e0\u4e3a\u8fd9\u4e9b\u667a\u80fd\u7535\u89c6\u6216\u667a\u80fd\u673a\u9876\u76d2\u5929\u7136\u5b58\u5728\u7684\u786c\u4ef6\u4e0a\u7684\u74f6\u9888\uff0c\u4e14\u8fd0\u884c\u5728\u8fd9\u4e9b\u667a\u80fd\u7535\u89c6\u6216\u667a\u80fd\u673a\u9876\u76d2\u4e0a\u7684Android 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\u6e32\u67d3\u5f15\u64ce\u6765\u8bf4\uff0c\u5728\u652f\u4ed8\u5b9d\u94b1\u5305\u4e2d\uff0c\u9762\u5bf9\u7684\u662f\u624b\u673a\u7aef\u7684\u573a\u666f\uff0c\u800c\u5728OTT\u4e0a\uff0c\u9762\u5bf9\u7684\u662f\u4e00\u4e2a\u5168\u65b0\u7684\u573a\u666f\uff0c\u65e2\u9700\u8981\u89e3\u51b3 OTT \u8bbe\u5907\u7684\u6027\u80fd\u95ee\u9898\uff0c\u4e5f\u9700\u8981\u66f4\u5408\u7406\u7684\u7126\u70b9\u5f15\u64ce\u80fd\u529b\u7684\u652f\u6301\u3002\u7126\u70b9\u5f15\u64ce\u4f55\u4e3a\u7126\u70b9\u5f15\u64ce\uff1f\u4e0a\u9762\u63d0\u5230\u4e86\u4f55\u4e3a\u5927\u5c4f\u5c0f\u7a0b\u5e8f\u4ee5\u53ca\u5927\u5c4f\u5c0f\u7a0b\u5e8f\u8fd0\u884c\u7684 OTT \u8bbe\u5907\uff0c\u800c\u8fd9\u4e9b OTT \u8bbe\u5907\u7684\u4ea4\u4e92\u65b9\u5f0f\uff0c\u5c31\u662f\u901a\u8fc7\u9065\u63a7\u5668\u6765\u64cd\u4f5c\uff0c\u8fd9\u4e00\u70b9\u548c\u89e6\u63a7\u8bbe\u5907\u5b8c\u5168\u4e0d\u540c\u3002\u9065\u63a7\u5668\u901a\u8fc7 Android \u7cfb\u7edf\u7684\u6309\u952e\u7cfb\u7edf\uff0c\u8fdb\u884c\u4e8b\u4ef6\u5206\u53d1\uff0c\u6765\u5b9e\u73b0\u5e94\u7528\u7a0b\u5e8f\u7684\u4ea4\u4e92\uff0c\u90a3\u4e48\u8fd9\u91cc\u5c31\u4e0d\u5f97\u4e0d\u63d0\u5230\u6211\u4eec\u7684\u7126\u70b9\u5f15\u64ce\uff0c\u4e5f\u5c31\u662f FocusEngine \u4e86\u3002\u6240\u8c13 FocusEngine\uff0c\u5b9e\u9645\u5305\u62ec\u51e0\u5927\u90e8\u5206\uff1aFocusNode (\u7126\u70b9 View )\u3001FocusTree (\u7126\u70b9\u6811)\u3001FocusFinder (\u7126\u70b9\u67e5\u627e\u5668)\u3001FocusState (\u7126\u70b9\u72b6\u6001)\u3001FocusEffect(\u7126\u70b9\u6548\u679c)\u3002\u00a0\u800c\u539f\u6709\u7684 Cube \u5c0f\u7a0b\u5e8f\u6280\u672f\u6808\u4e0d\u5177\u5907FocusEngine \u7684\u80fd\u529b\uff0c\u4e5f\u5c31\u662f\u8bf4\u6e32\u67d3\u5f15\u64ce\u4e2d\u7f3a\u5c11\u6700\u540e\u4e00\u68f5\u6811 FocusTree\uff0c\u66f4\u6ca1\u6709\u7126\u70b9\u67e5\u627e\u5668\u3001\u7126\u70b9\u72b6\u6001\u4ee5\u53ca\u7126\u70b9\u6548\u679c\u7684\u652f\u6301\u3002\u5173\u4e8eCube \u5c0f\u7a0b\u5e8f\u6e32\u67d3\u5f15\u64ce\u4e2d LayoutTree\uff0cRenderTree\uff0cLayerTree\uff0c\u6b64\u5904\u4e0d\u518d\u8fdb\u884c\u989d\u5916\u8d58\u8ff0\uff0c\u8be6\u7ec6\u4e86\u89e3\u53ef\u53c2\u89c1\u4e4b\u524d\u6587\u7ae0\u4ecb\u7ecd\u300aCube \u6e32\u67d3\u8bbe\u8ba1\u7684\u524d\u4e16\u4eca\u751f\u300b\u4e2d\u5e38\u89c1\u672f\u8bed\u548c\u6570\u636e\u6a21\u578b\u7684\u4ecb\u7ecd\u3002\u5b9e\u73b0\u7ec6\u8282\u4e0a\u9762\u6211\u4eec\u63d0\u5230 FocusEngine \u5305\u542b\u7684\u51e0\u4e2a\u4e3b\u8981\u90e8\u5206\uff0c\u4e0b\u9762\u6211\u4eec\u6765\u770b\u770b Cube \u5c0f\u7a0b\u5e8f\u6e32\u67d3\u5f15\u64ce\u4e2d\u7684\u65e0\u540d\u82f1\u96c4&#8212;&#8212; Focus \u7684\u5b9e\u73b0\u3002FocusNode (\u7126\u70b9 View )FocusNode \u662f\u7528\u4e8e\u83b7\u53d6\u9065\u63a7\u5668\u6309\u952e\u4e8b\u4ef6\u7684\u5bf9\u8c61\uff0c\u4e5f\u5c31\u662f\u8bf4\u5f53\u5c0f\u7a0b\u5e8f\u7684 AXML \u4e2d\u4e00\u4e2a view \u8282\u70b9\u5177\u5907\u4e86focusable \u5c5e\u6027\u65f6\uff0c\u90a3\u4e48\u5728 Cube \u6e32\u67d3\u5f15\u64ce\u4e2d\u4f1a\u6620\u5c04\u6210\u4e00\u4e2a FocusNode \u8282\u70b9\uff0c\u4e14\u4f1a\u8fdb\u884c\u5b9e\u4f53\u5316\u3002\u8be5\u8282\u70b9\u5177\u5907\u4e3b\u52a8\u83b7\u53d6\u7126\u70b9 requestFocus \u548c\u4e3b\u52a8\u6e05\u9664\u7126\u70b9 clearFocus \u7684\u80fd\u529b\uff0c\u540c\u65f6\u4e5f\u53ef\u4ee5\u76d1\u542c focus \u7684\u53d8\u5316\uff0c\u53ef\u63a5\u6536\u5230 onFocusChange \u7684\u56de\u8c03 onFocus \u548c onBlur \u4e8b\u4ef6\u901a\u77e5&lt;view id=&#8221;focus-control&#8221; class=&#8221;button&#8221; focusable=&#8221;true&#8221; onFocus=&#8221;handleFocus&#8221; <br \/>onBlur=&#8221;handleBlur&#8221;&gt;<\/p>\n<p>doRequestFocus() {<br \/>  my.createSelectorQuery().select(&#8216;#focus-control&#8217;).node().exec(function(ret) {<\/p>\n<pre><code>const ref = ret &amp;&amp; ret[0];\nref.requestFocus();<\/code><\/pre>\n<p>})<br \/>}FocusTree (\u7126\u70b9\u6811)FocusTree \u662f\u4e0e Cube \u6e32\u67d3\u5f15\u64ce\u4e2d\u7684 LayerTree \u72ec\u7acb\u5f00\u7684\uff0c\u4e00\u68f5\u5355\u72ec\u7684\u5b9e\u4f53\u8282\u70b9\u7684 Tree\uff0c\u5b83\u4e3b\u8981\u7528\u4e8e\u7ef4\u62a4 LayerTree \u4e2d\u53ef\u805a\u7126 FocusNode \u4e4b\u95f4\u7684\u7236\u5b50\u5173\u7cfb\u3002FocusTree \u6682\u65f6\u65e0\u6cd5\u901a\u8fc7\u5355\u72ec\u7684\u5de5\u5177\u67e5\u770b\u8fd9\u68f5\u6811\u7684\u7ed3\u6784\uff0c\u4f46\u6302\u5728\u6811\u4e0a\u7684 FocusNode \u53ef\u901a\u8fc7 DevTools \u7684 Elements \u6216 Android \u7684 LayoutInspector \u67e5\u770b\uff0c\u540e\u7eed\u4f1a\u8003\u8651\u652f\u6301\u8fdb\u884c\u72ec\u7acb\u6811\u7684 dump \u540e\u5bfc\u51fa\u65b9\u4fbf\u67e5\u770b\u3002\u7126\u70b9\u6811\u7ed3\u6784\u793a\u4f8b\u5982\u4e0b\uff1a\u00a0<br \/><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042358759\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>FocusFinder (\u7126\u70b9\u67e5\u627e\u5668)FocusFinder \u662f\u8d1f\u8d23\u7126\u70b9\u641c\u7d22\u903b\u8f91\u7684\u6838\u5fc3\u67e5\u627e\u5668\uff0c\u5185\u90e8\u7ef4\u62a4\u7740\u7528\u4e8e\u4ece\u5f53\u524d\u5177\u6709\u7126\u70b9\u7684 FocusNode \u4e2d\u67e5\u627e\u7ed9\u5b9a\u65b9\u5411\u4e0a\u7684\u4e0b\u4e00\u4e2a\u53ef\u805a\u7126 FocusNode \u7684\u7b97\u6cd5(PS\uff1a\u8fd9\u91cc\u7684\u65b9\u5411\u6307\u7684\u662f\u9065\u63a7\u5668\u64cd\u4f5c\u7684\u4e0a\u4e0b\u5de6\u53f3)\u3002\u5728 Cube \u7684\u6e32\u67d3\u5f15\u64ce\u4e2d\uff0c\u65e0\u8bba\u662f Layout\u3001Render pipline\uff0c\u8fd8\u662f Tree\uff0c\u4ee3\u7801\u5747\u91c7\u7528 C++ \u6765\u5b9e\u73b0\uff0c\u800cFocusFinder \u7684\u7b97\u6cd5\u5b9e\u73b0\u4ea6\u662f\u5982\u6b64\u3002\u6211\u4eec\u5728 FocusFinder \u7684\u5b9e\u73b0\u4e0a\uff0c\u4ee5 Android \u7684 FocusFinder \u5b9e\u73b0\u4e3a\u84dd\u672c\uff0c\u5b9e\u73b0\u4e86\u9002\u5408 Cube \u6e32\u67d3\u5f15\u64ce\u7684\u7126\u70b9\u67e5\u627e\u7b97\u6cd5\uff0c\u53bb\u9664\u4e86 Android \u672c\u8eab\u7684 descendant focusability \u00a0\u652f\u6301\uff0c\u91c7\u7528\u9ed8\u8ba4FOCUS_AFTER_DESCENDANTS \u7684\u67e5\u627e\u7b56\u7565\uff0c\u4e14\u57fa\u4e8e\u5185\u90e8 FocusNode \u7684\u7ba1\u7406\u673a\u5236\uff0c\u4e0d\u518d\u989d\u5916\u63d0\u4f9bUserSpecifiedFocusNode \u7684\u652f\u6301\uff0c\u5e76\u652f\u6301\u4e86\u4e94\u79cd\u4f18\u5148\u7ea7\u67e5\u627e\u7b56\u7565\uff0c\u5206\u522b\u4e3aCENTER_FIRST\uff08\u4e2d\u95f4\u5bf9\u9f50\u4f18\u5148\uff09\u3001LEFT_FIRST\uff08\u5de6\u5bf9\u9f50\u4f18\u5148\uff09\u3001RIGHT_FIRST\uff08\u53f3\u5bf9\u9f50\u4f18\u5148\uff09\u3001TOP_FIRST\uff08\u9876\u5bf9\u9f50\u4f18\u5148\uff09\u3001BOTTOM_FIRST\uff08\u5e95\u5bf9\u9f50\u4f18\u5148\uff09\u3002\u7126\u70b9\u67e5\u627e\u7b56\u7565\u4e3e\u4f8b\u8bf4\u660e\u5982\u4e0b\uff1a<br \/><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042358760\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u5982\u4e0a\u6240\u793a\uff0c\u5f53\u524d\u83b7\u53d6\u7126\u70b9\u7684 FocusNode \u4e3a A\uff0c\u800c FocusNode B \u548c FocusNode C \u5728\u6c34\u5e73\u65b9\u5411\u4e0a\u4e0e Current Focus Node A \u7684 Rect \u5b58\u5728\u4ea4\u96c6\uff0c\u56e0\u6b64\u5728\u5185\u90e8\u6211\u4eec\u4f1a\u901a\u8fc7\u5e26\u6743\u91cd\u6bd4\u7684\u8ddd\u79bb\u5224\u65ad\uff1bFocusNode E\uff0c\u5728\u5782\u76f4\u65b9\u5411\u4e0a\u4e0eCurrent Focus Node A \u7684 Rect \u6709\u4ea4\u96c6\uff0c\u800c\u6c34\u5e73\u65b9\u5411\u4e0a\u6ca1\u6709\uff0c\u6240\u4ee5\u66f4\u9002\u5408\u4f5c\u4e3a FOCUS_UP \u7684\u7126\u70b9\u67e5\u627e\uff0c\u800c\u4e0d\u662fFOCUS_LEFT \u7684\u67e5\u627e\uff1b\u800c FocusNode B \u548c FocusNode D\uff0c\u6309\u7167 Cube \u7684\u6e32\u67d3\u5f15\u64ce\u7684\u89c4\u5219\uff0c\u5728\u6c34\u5e73\u65b9\u5411\u4e0a\u662f\u5141\u8bb8\u8de8\u5217\u79fb\u52a8\u7126\u70b9\u7684\u800c\u5782\u76f4\u65b9\u5411\u662f\u4e0d\u5141\u8bb8\u8de8\u5217\u79fb\u52a8\u7126\u70b9\u7684 \u4e14 FocusNode E \u4f1a\u4f5c\u4e3a FOCUS_UP \u7684\u4f18\u5148\u9009\u62e9\uff0c \u56e0\u6b64\uff0c\u6b64\u65f6\u8fdb\u884c FOCUS_LEFT \u7684\u65f6\u5019\uff0c\u4f1a\u4f18\u5148\u9009\u62e9 FocusNode B\u3002FocusState (\u7126\u70b9\u72b6\u6001)FocusState \u662f\u8d1f\u8d23\u7ef4\u62a4 FocusNode \u8282\u70b9\u7126\u70b9\u72b6\u6001\u7684\u7ba1\u7406\u8005\uff0c\u5185\u90e8\u7ef4\u62a4 FocusNode \u8282\u70b9\u7684\u7126\u70b9\u72b6\u6001\uff0c\u56e0\u4e3a\u5728 AXML \u4e0b\uff0c\u5f53\u4e00\u4e2a View \u8282\u70b9\u83b7\u5f97 focusable \u5c5e\u6027\u65f6\uff0c\u90a3\u4e48\u6b64\u65f6\u8be5\u8282\u70b9\u4f1a\u88ab\u6807\u8bb0\u6210 FocusNode \u8282\u70b9\u3002\u5f53Android \u7cfb\u7edf\u6309\u952e\u5206\u53d1\u65f6\uff0cFocusFinder \u63a5\u6536\u5230\u67e5\u627e\u7684\u547d\u4ee4\uff0c\u4f1a\u4ece FocusTree \u4e2d\u8fdb\u884c FocusNode \u7684\u67e5\u627e\uff0c\u5f53\u627e\u5230\u6700\u5408\u9002\u7684 FocusNode \u8282\u70b9\u65f6\uff0c\u90a3\u4e48\u6b64\u65f6\u8be5 FocusNode \u9700\u8981\u6807\u8bb0\u81ea\u5df1\u7684 FocusState \u4e3a focused \u72b6\u6001\uff0c\u4e0e\u6b64\u540c\u65f6\uff0c\u5047\u8bbe\u5185\u90e8\u7684 child node \u6ca1\u6709 FocusNode\uff0c\u4f46\u6709\u53f6\u5b50\u8282\u70b9 text \u6216 image\uff0c\u90a3\u4e48\u6b64\u65f6\u4f1a\u6807\u8bb0 text \u6216 image \u8282\u70b9\u4e3a selected \u72b6\u6001\u3002FocusEffect (\u7126\u70b9\u6548\u679c)FocusEffect \u4e3b\u8981\u7528\u6765\u8868\u793a\u4e0d\u540c\u7684\u8282\u70b9\u5bf9\u5e94\u7684 FocusState \u7684\u7126\u70b9\u6548\u679c\uff0c\u5728\u524d\u7aef\u5f00\u53d1\u8005\u89c6\u89d2\u4e0b\uff0c\u4e3b\u8981\u901a\u8fc7 CSS \u7684\u4f2a\u7c7b :focus \u6765\u5b9e\u73b0\uff0c\u5982\u4e0b\u4ee3\u7801\u7247\u6bb5\uff1a.button {<br \/>  margin-top: 30rpx;<br \/>  margin-left: 15rpx;<br \/>  width: 450rpx;<br \/>  height: 200rpx;<br \/>  border: 2rpx red solid;<br \/>}<\/p>\n<p>.button:focus {<br \/>  border: 2rpx blue solid;<br \/>}\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u9ad8\u4eae\u7684 Item \u6240\u5728\u7684\u8282\u70b9\u4e3a\u5f53\u524d\u83b7\u5f97\u7126\u70b9\u7684 FocusNode\uff1a<br \/><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042358761\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u4e0b\u9762\u770b\u4e0b\u5728 OTT \u8bbe\u5907\u4e0a Cube \u5c0f\u7a0b\u5e8f\u7684\u57fa\u7840\u6027\u80fd\u6570\u636e\uff1a(\u4ee5\u6dd8\u5b9d\u7279\u4ef7\u7248\u5c0f\u7a0b\u5e8f\u4e3a\u4f8b)<br \/><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042358762\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u56e0\u4f18\u5316\u73af\u8282\u6d89\u53ca\u5230\u6574\u4f53\u5c0f\u7a0b\u5e8f\u6280\u672f\u6808\uff0c\u6240\u4ee5\u8fd9\u91cc\u7b80\u5355\u63d0\u4e00\u4e0b\u5c0f\u7a0b\u5e8f\u57fa\u7840\u8bbe\u65bd\u4e2d\u7684\u51e0\u5927\u90e8\u5206\uff0c\u5176\u4e2d\u5305\u62ec\uff1a\u5bb9\u5668\uff0c\u524d\u7aef\u6846\u67b6\uff0cCube \u6e32\u67d3\u5f15\u64ce\uff0c\u811a\u672c\u5f15\u64ce\u3002\u4e3b\u8981\u6027\u80fd\u4f18\u5316\u624b\u6bb5\u5305\u62ec\u4f46\u4e0d\u9650\u4e8e\u4ee5\u4e0b\u5185\u5bb9\uff1a\u5305\u5927\u5c0f\uff1a\u79fb\u9664 OTT \u8bbe\u5907\u4e0d\u9700\u8981\u7684\u80fd\u529b\u6a21\u5757\uff0c\u79fb\u9664 AntUI\u3001\u5b89\u5168\u6570\u636e\u5e93\u3001permission \u7ba1\u63a7\u6a21\u5757\uff0c\u5171\u4eabapk \u5bbf\u4e3b\u5185 so\u3002\u811a\u672c\u5f15\u64ce\uff1a\u5728\u652f\u4ed8\u5b9d\u94b1\u5305\u79fb\u52a8\u7aef\u4e0a\u4f7f\u7528 JSC\/V8 \u4f5c\u4e3a JS \u4ee3\u7801\u7684\u6267\u884c\u5f15\u64ce\uff0cIOT \u8bbe\u5907\u4e0a\u4f7f\u7528\u7684\u662f QuickJS\u3002\u5185\u5b58\u5360\u7528\uff1a\u9759\u6001\u533a\u5757\u4f18\u5316\uff1bJNI Global Reference \u4f18\u5316\uff1bActivity Context \u4e0a\u4e0b\u6587\uff0c\u865a\u62df\u673a\u548c Native \u7684\u89e3\u8026\uff0c\u9632\u6b62 Context \u88ab Native \u6301\u6709\uff0c\u9020\u6210\u5185\u5b58\u6cc4\u9732\uff1bNative \u4e2d\u6e32\u67d3\u6811\u76f8\u5173\u5185\u5b58\u4f18\u5316\uff0c\u5185\u5b58\u6cc4\u9732\u68c0\u6d4b\u5904\u7406\u3002\u542f\u52a8\u6027\u80fd\uff1a\u865a\u62df\u673a\u4f18\u5316\u65b9\u9762\uff0c\u4f7f\u7528 Class Verify \u6291\u5236 + GC \u6291\u5236\uff1b\u4f18\u5316 Android InvocationHandler \u52a8\u6001\u4ee3\u7406\u5728\u4e2d\u4f4e\u7aef\u8bbe\u5907\u8017\u65f6\u95ee\u9898\uff1b\u5c0f\u7a0b\u5e8f\u4ea7\u7269 Bytecode \u80fd\u529b\u652f\u6301\uff0c\u51cf\u5c11\u5c0f\u7a0b\u5e8f\u4ea7\u7269\u5728\u811a\u672c\u5f15\u64ce\u4e0b Parse \u548c AST \u7684\u9636\u6bb5\u8017\u65f6\uff0c\u76f4\u63a5\u6267\u884cBytecode\u3002\u4e0a\u9762\u6211\u4eec\u4ecb\u7ecd\u5b8c\u4e86\u548c FocusEngine \u76f8\u5173\u7684\u5b9e\u73b0\u7ec6\u8282\uff0c\u76f8\u4fe1\u5927\u5bb6\u5bf9\u4e8e FocusEngine \u6240\u5305\u542b\u7684\u51e0\u4e2a\u4e3b\u8981\u90e8\u5206\u6709\u4e86\u521d\u6b65\u7684\u8ba4\u8bc6\u548c\u4e86\u89e3\u3002\u901a\u8fc7\u4e0a\u8ff0\u5173\u4e8e FocusNode \u8282\u70b9\u4ee5\u53ca FocusEffect \u4f2a\u7c7b\u7684\u4ee3\u7801\u7247\u6bb5\uff0c\u4e0d\u96be\u770b\u51fa\uff0c\u53ea\u8981\u4f7f\u7528\u4e86 Cube \u5c0f\u7a0b\u5e8f\u6280\u672f\u6808\uff0c\u90a3\u4e48\u5f00\u53d1\u4e00\u4e2a\u5927\u5c4f\u5c0f\u7a0b\u5e8f\uff0c\u548c\u5f00\u53d1\u4e00\u4e2a\u666e\u901a\u7684\u652f\u4ed8\u5b9d\u5c0f\u7a0b\u5e8f\u5dee\u5f02\u6027\u662f\u5fae\u4e4e\u5176\u5fae\u7684\u3002\u9664\u4e86\u5f00\u53d1\u65b9\u5f0f\u548c\u666e\u901a\u652f\u4ed8\u5b9d\u5c0f\u7a0b\u5e8f\u5b8c\u5168\u65e0\u4e8c\u4e4b\u5916\uff0c\u5728\u8c03\u8bd5\u5de5\u5177\u4e0a\u4e5f\u662f\u53ef\u4ee5\u4f7f\u7528 Chrome DevTools \u6765\u8fdb\u884c\u7f16\u8f91\u548c\u4fee\u6539\u76f8\u5e94\u7684\u53ef Focus \u7684 DOM \u8282\u70b9\u7684\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<br \/><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042358763\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u4ece\u62e5\u62b1 Native \u5f00\u53d1\uff0c\u5230\u62e5\u62b1\u52a8\u6001\u5316\u5c0f\u7a0b\u5e8f\u6280\u672f\u6808\u5f00\u53d1\uff0c\u5373\u89e3\u51b3\u4e86\u788e\u7247\u5316\u8bbe\u5907\u4e0b\u7684\u957f\u5c3e\u74f6\u9888\u95ee\u9898\uff0c\u53c8\u662f\u4ea7\u54c1\u6280\u672f\u7684\u67b6\u6784\u5347\u7ea7\u3002\u5728 CIBN \u9177\u55b5\u5f71\u89c6\u4e0b\uff0c\u6211\u4eec\u548c\u4e1a\u52a1\u65b9\u4e00\u9053\u8fdb\u884c\u4e86\u5927\u80c6\u7684\u521b\u65b0\u548c\u63a2\u7d22\uff0c\u6700\u7ec8\u5b9e\u73b0\u4e86\u591a\u79cd Cube \u5c0f\u7a0b\u5e8f\u7684\u4ea7\u54c1\u5f62\u6001\u3002\u5176\u4e2d\u5305\u62ec\u7528\u4e8e\u53cc\u5341\u4e00\u6218\u5f79\u7684\u76f4\u64ad\u95f4\u534a\u5c4f\u5c0f\u7a0b\u5e8f\u3001\u7528\u4e8e\u684c\u9762\u9996\u9875\u5927\u4f5c\u4e1a\u7684 Tab \u5c0f\u7a0b\u5e8f\u3001\u7528\u4e8e\u641c\u7d22\u5e7f\u544a\u4e0b\u7684\u5d4c\u5165\u5f0f\u5c0f\u7a0b\u5e8f\u3001\u4ee5\u53ca\u7528\u4e8e\u4e1a\u52a1\u8fd0\u8425\u7684\u5168\u5c4f\u5c0f\u7a0b\u5e8f\uff0c\u6548\u679c\u5206\u522b\u5982\u4e0b\uff1a<br \/><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042358764\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><br \/>\u5173\u4e8e\u6e32\u67d3\u5f15\u64ce\u672c\u8eab\u7684\u601d\u8003\uff0c\u672a\u6765\u4f1a\u8fdb\u4e00\u6b65\u6253\u78e8\u6574\u4f53\u7684\u6e32\u67d3\u94fe\u8def\uff0c\u5728\u6027\u80fd\u4e0a\u63d0\u5347 Cube \u5c0f\u7a0b\u5e8f\u7684\u542f\u52a8\u6027\u80fd\u3002\u4f17\u6240\u5468\u77e5\uff0c\u89e3\u91ca\u6027\u8bed\u8a00\u6bcf\u6b21\u8fd0\u884c\u65f6\u90fd\u9700\u8981\u901a\u8fc7\u89e3\u91ca\u5668\u5bf9\u7a0b\u5e8f\u8fdb\u884c\u52a8\u6001\u89e3\u91ca\u548c\u6267\u884c\u3002\u800c\u8fd9\u4e2a\u8fc7\u7a0b\u5c11\u4e0d\u4e86\u4ece Parse \u5230AST\uff0c\u518d\u4ece AST \u5230 Bytecode \u7684\u8fc7\u7a0b\uff0c\u672a\u6765\u4f1a\u8fdb\u4e00\u6b65\u51cf\u5c11 Parse \u548c AST \u7684\u8fc7\u7a0b\uff0c\u80fd\u5145\u5206\u53d1\u6325\u811a\u672c\u5f15\u64ce\u5bf9Bytecode \u7684\u652f\u6301\uff0c\u63d0\u5347\u542f\u52a8\u6027\u80fd\u3002\u53e6\u5916\uff0c\u4e5f\u4f1a\u9010\u6e10\u51cf\u5c11\u5bf9 Platform \u5c42\u7684\u4f9d\u8d56\uff0c\u4f7f Platform \u5c42\u66f4\u8f7b\u91cf\u5316\uff0c\u5145\u5206\u964d\u4f4e Cube \u6e32\u67d3\u7cfb\u7edf\u548c\u5e73\u53f0\u672c\u8eab\u7684\u6e32\u67d3\u7cfb\u7edf\u7684\u8026\u5408\uff0c\u66f4\u597d\u7684\u5b8c\u5584\u63d0\u5347\u6e32\u67d3\u672c\u8eab\u7684\u80fd\u529b\u3002\u5728\u4e1a\u52a1\u573a\u666f\u63a2\u7d22\u4e0a\uff0c\u672a\u6765\u4f1a\u4e0e\u66f4\u591a\u7684\u4e8c\u4e09\u65b9\u8fdb\u884c\u5408\u4f5c\uff0c\u65e0\u8bba\u662f\u5927\u5c4f\u7aef\u7684 App\uff0c\u8fd8\u662f\u684c\u9762 launcher\uff0c\u5e2e\u52a9\u4ed6\u4eec\u89e3\u51b3\u7248\u672c\u957f\u5c3e\u6548\u5e94\u548c\u4e1a\u52a1\u52a8\u6001\u6027\u95ee\u9898\uff0c\u5f53\u7136\u4e5f\u4f1a\u6709\u66f4\u591a\u7684\u573a\u666f\u7684\u652f\u6301\uff0c\u8b6c\u5982\u5c0f\u6e38\u620f\uff0c3D\u7b49\u3002\u5982\u679c\u4f60\u9700\u8981\u4e00\u79cd\u66f4\u5c0f\u3001\u66f4\u5feb\u3001\u66f4\u7701\u7684\u52a8\u6001\u5316\u6e32\u67d3\u6280\u672f\u6808\uff0c\u4e14\u5177\u6709\u66f4\u597d\u7684\u5f00\u53d1\u4f53\u9a8c\u548c\u884c\u4e1a\u5171\u8bc6\uff0c\u90a3\u4e48 Cube \u4e5f\u8bb8\u662f\u4e00\u4e2a\u4e0d\u9519\u7684\u9009\u62e9\u3002\u539f\u6587\u94fe\u63a5\uff1a<a href=\"https:\/\/link.segmentfault.com\/?enc=qqedRx5NsmJV67odZSHaXg%3D%3D.iWYY%2ByojNI%2Buva39KGiWJS4tZqK07ElA6qF7vgNoCgCDrYsGZr126xkk88xz43S3\" rel=\"nofollow\">https:\/\/click.aliyun.com\/m\/10&#8230;<\/a>\u672c\u6587\u4e3a\u963f\u91cc\u4e91\u539f\u521b\u5185\u5bb9\uff0c\u672a\u7ecf\u5141\u8bb8\u4e0d\u5f97\u8f6c\u8f7d\u3002<\/p>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000042358757\">https:\/\/segmentfault.com\/a\/1190000042358757<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7b80\u4ecb\uff1a\u00a0\u652f\u4ed8\u5b9d\u5ba2\u6237\u7aef\u6709\u6781\u5f3a\u7684\u52a8\u6001\u5316\u8bc9\u6c42\uff0c\u4e0d\u8bba iOS \u8fd8\u662f Android \u5e73\u53f0\uff0c\u91cd\u65b0\u5206\u53d1\u8f6f\u4ef6\u5305\u4ece\u65f6\u95f4\u4e0a\uff0c\u6548\u7387 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