{"id":22376,"date":"2024-04-10T11:58:06","date_gmt":"2024-04-10T03:58:06","guid":{"rendered":"https:\/\/www.zhidianwl.net\/zhidianwl\/?p=22376"},"modified":"2024-04-10T11:58:06","modified_gmt":"2024-04-10T03:58:06","slug":"android-ndk%e5%bc%80%e5%8f%91%e8%a6%81%e6%b3%a8%e6%84%8f%e5%93%aa%e4%ba%9b%e5%9c%b0%e6%96%b9%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.zhidianwl.net\/zhidianwl\/2024\/04\/10\/android-ndk%e5%bc%80%e5%8f%91%e8%a6%81%e6%b3%a8%e6%84%8f%e5%93%aa%e4%ba%9b%e5%9c%b0%e6%96%b9%ef%bc%9f\/","title":{"rendered":"android ndk\u5f00\u53d1\u8981\u6ce8\u610f\u54ea\u4e9b\u5730\u65b9\uff1f"},"content":{"rendered":"

Android NDK\uff08Native Development Kit\uff09\u662f\u4e00\u5957\u5f00\u53d1\u5de5\u5177\uff0c\u5141\u8bb8\u5f00\u53d1\u4eba\u5458\u4f7f\u7528C\/C++\u7f16\u5199Android\u5e94\u7528\u7a0b\u5e8f\u3002NDK\u63d0\u4f9b\u4e86\u4e00\u7ec4\u5de5\u5177\u548c\u5e93\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u7f16\u5199\u548c\u7f16\u8bd1\u672c\u5730\u4ee3\u7801\uff0c\u7136\u540e\u5c06\u5176\u4e0eJava\u4ee3\u7801\u4e00\u8d77\u6253\u5305\u5230\u4e00\u4e2aAPK\u6587\u4ef6\u4e2d\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528NDK\u53ef\u4ee5\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7a33\u5b9a\u6027\u3002\u672c\u6587\u5c06\u4ecb\u7ecdAndroid NDK\u7684\u539f\u7406\u548c\u8be6\u7ec6\u7684\u5f00\u53d1\u8fc7\u7a0b\u3002<\/p>\n

\u4e00\u3001NDK\u7684\u539f<\/p>\n

<\/figure>\n<\/p>\n

\u7406<\/p>\n

Android NDK\u7684\u4e3b\u8981\u4f5c\u7528\u662f\u5c06C\/C++\u4ee3\u7801\u7f16\u8bd1\u6210\u672c\u5730\u5e93\uff0c\u7136\u540e\u5728Android\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4f7f\u7528\u3002\u4e0eJava\u4ee3\u7801\u4e0d\u540c\uff0c\u672c\u5730\u5e93\u4f7f\u7528\u7684\u662fCPU\u7684\u672c\u673a\u6307\u4ee4\uff0c\u56e0\u6b64\u53ef\u4ee5\u66f4\u5feb\u5730\u6267\u884c\uff0c\u8fd9\u5bf9\u4e8e\u4e00\u4e9b\u9700\u8981\u9ad8\u6027\u80fd\u7684\u5e94\u7528\u7a0b\u5e8f\u975e\u5e38\u6709\u7528\u3002<\/p>\n

NDK\u5305\u542b\u4e86\u4e00\u4e9b\u5de5\u5177\u548c\u5e93\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u7f16\u5199\u548c\u7f16\u8bd1\u672c\u5730\u4ee3\u7801\u3002\u5176\u4e2d\u6700\u91cd\u8981\u7684\u5de5\u5177\u662f\u4ea4\u53c9\u7f16\u8bd1\u5668\uff0c\u5b83\u53ef\u4ee5\u5c06C\/C++\u4ee3\u7801\u7f16\u8bd1\u6210ARM\u3001x86\u7b49CPU\u67b6\u6784\u7684\u672c\u5730\u5e93\u3002\u5f00\u53d1\u4eba\u5458\u8fd8\u53ef\u4ee5\u4f7f\u7528NDK\u4e2d\u7684\u5176\u4ed6\u5de5\u5177\uff0c\u5982ndk-build\u548cndk-gdb\u7b49\uff0c\u6765\u5e2e\u52a9\u4ed6\u4eec\u6784\u5efa\u548c\u8c03\u8bd5\u672c\u5730\u4ee3\u7801\u3002<\/p>\n

\u4e8c\u3001NDK\u7684\u5f00\u53d1\u8fc7\u7a0b<\/p>\n

1. \u5b89\u88c5NDK<\/p>\n

\u5728\u5f00\u59cb\u4f7f\u7528NDK\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u5148\u5b89\u88c5\u5b83\u3002\u60a8\u53ef\u4ee5\u4eceAndroid\u5f00\u53d1\u8005\u7f51\u7ad9\u4e0a\u4e0b\u8f7dNDK\uff0c\u5e76\u6309\u7167\u8bf4\u660e\u8fdb\u884c\u5b89\u88c5\u3002<\/p>\n

2. \u7f16\u5199\u672c\u5730\u4ee3\u7801<\/p>\n

\u5728\u4f7f\u7528NDK\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u7f16\u5199C\/C++\u4ee3\u7801\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4efb\u4f55C\/C++\u7f16\u8bd1\u5668\u6765\u7f16\u5199\u4ee3\u7801\uff0c\u4f46\u662f\u60a8\u9700\u8981\u786e\u4fdd\u4ee3\u7801\u4f7f\u7528\u4e86\u6b63\u786e\u7684\u8bed\u6cd5\u548c\u5e93\u3002<\/p>\n

3. \u914d\u7f6eAndroid.mk\u6587\u4ef6<\/p>\n

Android.mk\u6587\u4ef6\u662f\u4e00\u4e2aMakefile\uff0c\u7528\u4e8e\u63cf\u8ff0\u5982\u4f55\u6784\u5efa\u672c\u5730\u5e93\u3002\u60a8\u9700\u8981\u5728\u6b64\u6587\u4ef6\u4e2d\u6307\u5b9a\u8981\u7f16\u8bd1\u7684\u6e90\u4ee3\u7801\u6587\u4ef6\u3001\u7f16\u8bd1\u5668\u9009\u9879\u3001\u5e93\u4f9d\u8d56\u9879\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684Android.mk\u6587\u4ef6\u793a\u4f8b\uff1a<\/p>\n

“`<\/p>\n

LOCAL_PATH := $(call my-dir)<\/p>\n

include $(CLEAR_VARS)<\/p>\n

LOCAL_MODULE := mylibrary<\/p>\n

LOCAL_SRC_FILES := mylibrary.cpp<\/p>\n

LOCAL_LDLIBS := -llog<\/p>\n

include $(BUILD_SHARED_LIBRARY)<\/p>\n

“`<\/p>\n

\u8be5\u6587\u4ef6\u6307\u5b9a\u4e86\u8981\u7f16\u8bd1\u7684\u6e90\u4ee3\u7801\u6587\u4ef6\uff08mylibrary.cpp\uff09\uff0c\u751f\u6210\u7684\u672c\u5730\u5e93\u7684\u540d\u79f0\uff08mylibrary\uff09\uff0c\u4ee5\u53ca\u672c\u5730\u5e93\u4f9d\u8d56\u7684\u5e93\uff08-llog\uff09\u3002<\/p>\n

4. \u6784\u5efa\u672c\u5730\u5e93<\/p>\n

\u5728\u914d\u7f6eAndroid.mk\u6587\u4ef6\u540e\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528ndk-build\u547d\u4ee4\u6765\u6784\u5efa\u672c\u5730\u5e93\u3002\u8be5\u547d\u4ee4\u5c06\u8bfb\u53d6Android.mk\u6587\u4ef6\u5e76\u4f7f\u7528\u6307\u5b9a\u7684\u7f16\u8bd1\u5668\u5c06\u6e90\u4ee3\u7801\u7f16\u8bd1\u6210\u672c\u5730\u5e93\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u547d\u4ee4\uff1a<\/p>\n

“`<\/p>\n

$ ndk-build<\/p>\n

“`<\/p>\n

\u8be5\u547d\u4ee4\u5c06\u5728\u5f53\u524d\u76ee\u5f55\u4e0b\u751f\u6210\u4e00\u4e2a\u540d\u4e3a\u201clibs\u201d\u7684\u76ee\u5f55\uff0c\u5e76\u5728\u5176\u4e2d\u5305\u542b\u6784\u5efa\u7684\u672c\u5730\u5e93\u3002<\/p>\n

5. \u5c06\u672c\u5730\u5e93\u6dfb\u52a0\u5230Andripa<\/a>oid\u9879\u76ee\u4e2d<\/p>\n

\u5728\u6784\u5efa\u672c\u5730\u5e93\u540e\uff0c\u60a8\u9700\u8981\u5c06\u5176\u6dfb\u52a0\u5230Android\u9879\u76ee\u4e2d\u3002\u60a8\u53ef\u4ee5\u5c06\u672c\u5730\u5e93\u653e\u7f6e\u5728\u9879\u76ee\u7684\u201clibs\u201d\u76ee\u5f55\u4e0b\uff0c\u5e76\u5728AndroidManifest.xml\u6587\u4ef6\u4e2d\u6307\u5b9a\u8981\u4f7f\u7528\u7684\u672c\u5730\u5e93\u3002<\/p>\n

“`<\/p>\n

\n

\n

\n

…<\/p>\n<\/p>\n<\/p>\n

“`<\/p>\n

\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u6307\u5b9a\u8981\u4f7f\u7528\u540d\u4e3a\u201cmylibrary\u201d\u7684\u672c\u5730\u5e93\u3002<\/p>\n

6. \u5728Java\u4ee3\u7801\u4e2d\u4f7f\u7528\u672c\u5730\u5e93<\/p>\n

\u6700\u540e\u4e00\u6b65\u662f\u5728Java\u4ee3\u7801\u4e2d\u4f7f\u7528\u672c\u5730\u5e93\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528Java\u7684JNI\uff08Java Native Interface\uff09\u6765\u8c03\u7528\u672c\u573024\u5c0f\u65f6app\u6253\u5305\u5546<\/a>\u5e93\u4e2d\u7684\u51fd\u6570\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff1a<\/p>\n

“`<\/p>\n

public class MyActivity extends Activity {<\/p>\n

static {<\/p>\n

System.loadLibrary(“mylibrary”);<\/p>\n

}<\/p>\n

public native String mylibraryFunction();<\/p>\n

}<\/p>\n

“`<\/p>\n

\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528System.loadLibrary()\u65b9\u6cd5\u52a0\u8f7d\u540d\u4e3a\u201cmylibrary\u201d\u7684\u672c\u5730\u5e93\uff0c\u5e76\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a\u201cmylibraryFunction()\u201d\u7684\u672c\u5730\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u5c06\u8c03\u7528\u672c\u5730\u5e93\u4e2d\u7684\u51fd\u6570\u3002<\/p>\n

\u603b\u7ed3<\/p>\n

\u672c\u6587\u4ecb\u7ecd\u4e86Android NDK\u7684\u539f\u7406\u548c\u8be6\u7ec6\u7684\u5f00\u53d1\u8fc7\u7a0b\u3002\u4f7f\u7528NDK\u53ef\u4ee5\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7a33\u5b9a\u6027\uff0c\u4f46\u9700\u8981\u5f00\u53d1\u4eba\u5458\u5177\u5907\u4e00\u5b9a\u7684C\/C++\u7f16\u7a0b\u77e5\u8bc6\u3002\u5982\u679c\u60a8\u9700\u8981\u7f16\u5199\u9ad8\u6027\u80fd\u7684Android\u5e94\u7528\u7a0b\u5e8f\uff0c\u90a3\u4e48\u4f7f\u7528NDK\u662f\u4e00\u4e2a\u4e0d\u9519\u7684\u9009\u62e9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

Android NDK\uff08Native Development Kit\uff09\u662f\u4e00\u5957\u5f00\u53d1\u5de5\u5177\uff0c\u5141\u8bb8\u5f00\u53d1\u4eba\u5458\u4f7f\u7528C\/C++\u7f16\u5199Android\u5e94\u7528\u7a0b\u5e8f\u3002NDK\u63d0\u4f9b\u4e86\u4e00\u7ec4\u5de5\u5177\u548c\u5e93\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u7f16\u5199\u548c\u7f16\u8bd1\u672c\u5730\u4ee3\u7801<\/p>\n","protected":false},"author":24,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[38,23256,12,849,598],"topic":[],"class_list":["post-22376","post","type-post","status-publish","format-standard","hentry","category-kaifaapp","tag-38","tag-23256","tag-12","tag-849","tag-598"],"_links":{"self":[{"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/posts\/22376","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/users\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/comments?post=22376"}],"version-history":[{"count":1,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/posts\/22376\/revisions"}],"predecessor-version":[{"id":22492,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/posts\/22376\/revisions\/22492"}],"wp:attachment":[{"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/media?parent=22376"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/categories?post=22376"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/tags?post=22376"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.zhidianwl.net\/zhidianwl\/wp-json\/wp\/v2\/topic?post=22376"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}