{"id":1129,"date":"2023-03-16T21:49:07","date_gmt":"2023-03-16T13:49:07","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=1129"},"modified":"2023-04-29T10:01:41","modified_gmt":"2023-04-29T02:01:41","slug":"design-pattern-adapter-mode","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/03\/16\/design-pattern-adapter-mode\/","title":{"rendered":"\u8bbe\u8ba1\u6a21\u5f0f\uff0820\uff09\u9002\u914d\u5668\u6a21\u5f0f"},"content":{"rendered":"

\u9002\u914d\u5668\u6a21\u5f0f\u662f\u7ed3\u6784\u578b\u8bbe\u8ba1\u6a21\u5f0f\u4e4b\u4e00\uff0c\u5b83\u5728\u6211\u4eec\u7684\u5f00\u53d1\u4e2d\u4f7f\u7528\u7387\u6781\u9ad8\uff0c\u6bd4\u5982ListView\u3001GridView\u4ee5\u53caRecyclerView\u90fd\u9700\u8981\u4f7f\u7528Adapter\u3002<\/p>\n

<\/p>\n

\u5b9a\u4e49<\/h2>\n

\u9002\u914d\u5668\u6a21\u5f0f\u628a\u4e00\u4e2a\u7c7b\u7684\u63a5\u53e3\u53d8\u6362\u6210\u5ba2\u6237\u7aef\u6240\u671f\u5f85\u7684\u53e6\u4e00\u79cd\u63a5\u53e3\uff0c\u4ece\u800c\u4f7f\u539f\u672c\u56e0\u63a5\u53e3\u4e0d\u5339\u914d\u65e0\u6cd5\u5728\u4e00\u8d77\u5de5\u4f5c\u7684\u4e24\u4e2a\u7c7b\u53ef\u4ee5\u5728\u4e00\u8d77\u5de5\u4f5c\u3002<\/p>\n

\u4f7f\u7528\u573a\u666f<\/h2>\n

\uff081\uff09\u7cfb\u7edf\u9700\u8981\u4f7f\u7528\u73b0\u6709\u7684\u7c7b\uff0c\u4f46\u6b64\u7c7b\u7684\u63a5\u53e3\u4e0d\u7b26\u5408\u7cfb\u7edf\u7684\u9700\u8981\uff0c\u5373\u63a5\u53e3\u4e0d\u517c\u5bb9\u3002
\n\uff082\uff09\u60f3\u8981\u5efa\u7acb\u4e00\u4e2a\u53ef\u4ee5\u91cd\u590d\u4f7f\u7528\u7684\u7c7b\uff0c\u7528\u4e8e\u4e0e\u4e00\u4e9b\u5f7c\u6b64\u4e4b\u95f4\u6ca1\u6709\u592a\u5927\u5173\u8054\u7684\u4e00\u4e9b\u7c7b\uff0c\u5305\u62ec\u4e00\u4e9b\u53ef\u80fd\u5728\u5c06\u6765\u5f15\u8fdb\u7684\u7c7b\u4e00\u8d77\u5de5\u4f5c\u3002
\n\uff083\uff09\u9700\u8981\u4e00\u4e2a\u7edf\u4e00\u7684\u8f93\u51fa\u63a5\u53e3\uff0c\u800c\u8f93\u5165\u7aef\u7684\u7c7b\u578b\u4e0d\u53ef\u9884\u77e5\u3002<\/p>\n

UML\u7c7b\u56fe<\/h2>\n

\u9002\u914d\u5668\u6a21\u5f0f\u5206\u4e3a\u4e24\u79cd\uff0c\u5373\u7c7b\u9002\u914d\u5668\u6a21\u5f0f\u4e0e\u5bf9\u8c61\u9002\u914d\u5668\u6a21\u5f0f\u3002<\/p>\n

\uff081\uff09Target<\/code>\uff1a\u76ee\u6807\u89d2\u8272\uff0c\u4e5f\u5c31\u662f\u6240\u671f\u5f85\u5f97\u5230\u7684\u63a5\u53e3\u3002\u6ce8\u610f\uff1a\u7531\u4e8e\u8fd9\u91cc\u8ba8\u8bba\u7684\u662f\u7c7b\u9002\u914d\u5668\u6a21\u5f0f\uff0c\u56e0\u6b64\u76ee\u6807\u4e0d\u53ef\u4ee5\u662f\u7c7b\u3002
\n\uff082\uff09Adaptee<\/code>\uff1a\u73b0\u5728\u9700\u8981\u9002\u914d\u7684\u63a5\u53e3\u3002
\n\uff083\uff09Adapter<\/code>\uff1a\u9002\u914d\u5668\u89d2\u8272\uff0c\u4e5f\u5c31\u662f\u672c\u6a21\u5f0f\u7684\u6838\u5fc3\u3002\u9002\u914d\u5668\u628a\u6e90\u63a5\u53e3\u8f6c\u6362\u6210\u76ee\u6807\u63a5\u53e3\u3002\u663e\u7136\uff0c\u8fd9\u4e00\u89d2\u8272\u4e0d\u53ef\u4ee5\u662f\u63a5\u53e3\uff0c\u800c\u5fc5\u987b\u662f\u5177\u4f53\u7c7b\u3002<\/p>\n

\u7b80\u5355\u5b9e\u73b0<\/h2>\n

\u4ee5\u7b14\u8bb0\u672c\u7535\u6e90\u9002\u914d\u5668\u4e3a\u4f8b\uff0c\u7535\u6e90\u9002\u914d\u5668\u5c06220V\u7684\u7535\u538b\u8f6c\u6362\u52305V\u3002\u90a3\u4e485V\u7535\u538b\u5c31\u662fTarget\u63a5\u53e3\uff0c220V\u7535\u538b\u5c31\u662fAdaptee\u7c7b\uff0c\u8f6c\u6362\u5c31\u662fAdapter\u3002<\/p>\n

\uff081\uff09\u4ee5\u7c7b\u9002\u914d\u5668\u6a21\u5f0f\u5b9e\u73b0<\/p>\n

\/\/Target\u89d2\u8272\npublic interface FiveVolt {\n\n    public int getVolt5();\n}<\/code><\/pre>\n
\/\/Adapter\u89d2\u8272\npublic class Volt220 {\n    public int getVolt220(){\n        return 220;\n    }\n}<\/code><\/pre>\n
public class VoltAdapter extends Volt220 implements FiveVolt{\n\n    @Override\n    public int getVolt5() {\n        return 5;\n    }\n\n}<\/code><\/pre>\n
public class Test {\n\n    public static void main(String[] args) {\n        VoltAdapter adapter = new VoltAdapter();\n        System.out.println("\u8f93\u51fa\u7535\u538b\uff1a" + adapter.getVolt5());\n    }\n\n}<\/code><\/pre>\n
\u7ed3\u679c\uff1a<\/p>\n
\u8f93\u51fa\u7535\u538b\uff1a5<\/code><\/pre>\n
\uff082\uff09\u5bf9\u8c61\u9002\u914d\u5668\u6a21\u5f0f\u5b9e\u73b0<\/p>\n
\u5bf9\u8c61\u9002\u914d\u5668\u6a21\u5f0f\u4e0e\u7c7b\u9002\u914d\u5668\u6a21\u5f0f\u4e0d\u540c\u7684\u662f\uff0c\u5bf9\u8c61\u9002\u914d\u5668\u6a21\u5f0f\u4e0d\u662f\u4f7f\u7528\u7ee7\u627f\u5173\u7cfb\u8fde\u63a5\u5230Adapter\u7c7b\uff0c\u800c\u662f\u4f7f\u7528\u4ee3\u7406\u5173\u7cfb\u8fde\u63a5\u5230Adapter\u7c7b\u3002<\/p>\n
\u6240\u4ee5FiveVolt \u3001Volt220 \u4e0d\u53d8\uff0cVoltAdapter \u4fee\u6539\u5982\u4e0b\uff1a<\/p>\n
public class VoltAdapter1 implements FiveVolt{\n\n    Volt220 mVolt220;\n\n    public VoltAdapter1(Volt220 adaptee) {\n        this.mVolt220 = adaptee;\n    }\n\n    public int getVolt220(){\n        return mVolt220.getVolt220();\n    }\n\n    @Override\n    public int getVolt5() {\n        return 5;\n    }\n\n}<\/code><\/pre>\n
Test\u4fee\u6539\u4e3a\uff1a<\/p>\n
public class Test {\n\n    public static void main(String[] args) {\n        VoltAdapter adapter = new VoltAdapter(new Volt220());\n        System.out.println("\u8f93\u51fa\u7535\u538b\uff1a" + adapter.getVolt5());\n    }\n\n}<\/code><\/pre>\n
\u73b0\u65b9\u5f0f\u76f4\u63a5\u5c06\u8981\u9002\u914d\u7684\u5bf9\u8c61\u4f20\u9012\u5230Adapter\u4e2d\uff0c\u4f7f\u7528\u7ec4\u5408\u7684\u5f62\u5f0f\u5b9e\u73b0\u63a5\u53e3\u517c\u5bb9\u7684\u6548\u679c\u3002\u8fd9\u6bd4\u7c7b\u9002\u914d\u5668\u65b9\u5f0f\u66f4\u4e3a\u7075\u6d3b\uff0c\u540c\u65f6\u88ab\u9002\u914d\u5bf9\u8c61\u7684\u65b9\u6cd5\u4e0d\u4f1a\u66b4\u9732\u51fa\u6765\u3002\u56e0\u6b64\u5bf9\u8c61\u9002\u914d\u5668\u6a21\u5f0f\u66f4\u52a0\u7075\u6d3b\u3001\u5b9e\u7528\u3002<\/p>\n
Android\u6e90\u7801\u4e2d\u7684\u9002\u914d\u5668\u6a21\u5f0f<\/h2>\n
    \n
  • ListView\u7684Adapter<\/li>\n<\/ul>\n
    \u8fd9\u91ccListView<\/code>\u7684Adapter<\/code>\u5c31\u662f\u4f7f\u7528\u7684\u5bf9\u8c61\u9002\u914d\u5668\u6a21\u5f0f\uff0cTarget<\/code>\u5c31\u662fView<\/code>\uff0cAdapter<\/code>\u89d2\u8272\u5c31\u662f\u5c06Item View<\/code>\u8f93\u51fa\u4e3aView<\/code>\u62bd\u8c61\u7684\u89d2\u8272\uff0cAdaptee<\/code>\u5c31\u662f\u9700\u8981\u88ab\u5904\u7406\u7684Item View<\/code>\u3002<\/p>\n
    \u603b\u7ed3<\/h2>\n
      \n
    • \u4f18\u70b9<\/li>\n<\/ul>\n
      \uff081\uff09\u66f4\u597d\u7684\u590d\u7528\u6027\uff1a\u7cfb\u7edf\u9700\u8981\u4f7f\u7528\u73b0\u6709\u7684\u7c7b\uff0c\u800c\u6b64\u7c7b\u7684\u63a5\u53e3\u4e0d\u7b26\u5408\u7cfb\u7edf\u7684\u9700\u8981\u3002\u90a3\u4e48\u901a\u8fc7\u9002\u914d\u5668\u6a21\u5f0f\u5c31\u53ef\u4ee5\u8ba9\u8fd9\u4e9b\u529f\u80fd\u5f97\u5230\u66f4\u597d\u7684\u590d\u7528\u3002
      \n\uff082\uff09\u66f4\u597d\u7684\u6269\u5c55\u6027\uff1a\u5728\u5b9e\u73b0\u9002\u914d\u5668\u529f\u80fd\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u8c03\u7528\u81ea\u5df1\u5f00\u53d1\u7684\u529f\u80fd\uff0c\u4ece\u800c\u81ea\u7136\u5730\u6269\u5c55\u7cfb\u7edf\u7684\u529f\u80fd\u3002<\/p>\n
        \n
      • \u7f3a\u70b9<\/li>\n<\/ul>\n
        \u8fc7\u591a\u7684\u4f7f\u7528\u9002\u914d\u5668\uff0c\u4f1a\u8ba9\u7cfb\u7edf\u975e\u5e38\u96f6\u4e71\uff0c\u4e0d\u6613\u6574\u4f53\u8fdb\u884c\u628a\u63e1\u3002\u6bd4\u5982\uff0c\u660e\u660e\u770b\u5230\u8c03\u7528\u7684\u662fA\u63a5\u53e3\uff0c\u5176\u5b9e\u5185\u90e8\u88ab\u9002\u914d\u6210\u4e86B\u63a5\u53e3\u7684\u5b9e\u73b0\uff0c\u4e00\u4e2a\u7cfb\u7edf\u5982\u679c\u592a\u591a\u51fa\u73b0\u8fd9\u79cd\u60c5\u51b5\uff0c\u65e0\u5f02\u4e8e\u4e00\u573a\u707e\u96be\u3002\u56e0\u6b64\u5982\u679c\u4e0d\u662f\u5f88\u6709\u5fc5\u8981\uff0c\u53ef\u4ee5\u4e0d\u4f7f\u7528\u9002\u914d\u5668\uff0c\u800c\u662f\u76f4\u63a5\u5bf9\u7cfb\u7edf\u8fdb\u884c\u91cd\u6784\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
        \u9002\u914d\u5668\u6a21\u5f0f\u662f\u7ed3\u6784\u578b\u8bbe\u8ba1\u6a21\u5f0f\u4e4b\u4e00\uff0c\u5b83\u5728\u6211\u4eec\u7684\u5f00\u53d1\u4e2d\u4f7f\u7528\u7387\u6781\u9ad8\uff0c\u6bd4\u5982ListView\u3001GridView\u4ee5\u53caRecy […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[303],"tags":[],"class_list":["post-1129","post","type-post","status-publish","format-standard","hentry","category-design-pattern"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1129","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1129"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1129\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1129"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1129"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}