\u5b89\u5353app\u5f00\u53d1\u5de5\u5177<\/a>“Native C++”\u6a21\u677f\uff0c\u7136\u540e\u6309\u7167\u5411\u5bfc\u8f93\u5165\u9879\u76ee\u540d\u79f0\u3001\u5b58\u50a8\u8def\u5f84\u3001\u8bbe\u5907\u652f\u6301\u7b49\u4fe1\u606f\u3002<\/p>\n3. \u914d\u7f6eGradle\u6587\u4ef6<\/p>\n
\u914d\u7f6e\u9879\u76ee\u7684build.gradle\u6587\u4ef6\uff0c\u6dfb\u52a0NDK\u63d2\u4ef6\u548c\u914d\u7f6eC++\u7f16\u8bd1\u53c2\u6570\uff0c\u4f8b\u5982\uff1a<\/p>\n
“`<\/p>\n
android {<\/p>\n
defaultConfig {<\/p>\n
externalNativeBuild {<\/p>\n
cmake {<\/p>\n
cppFlags ‘-std=c++11’<\/p>\n
}<\/p>\n
}<\/p>\n
}<\/p>\n
externalNativeBuild {<\/p>\n
cmake {<\/p>\n
path ‘CMakeLists.txt’<\/p>\n
}<\/p>\n
}<\/p>\n
}<\/p>\n
“`<\/p>\n
4. \u7f16\u5199C++\u4ee3\u7801<\/p>\n
\u5728\u9879\u76ee\u5de5\u7a0b\u4e2d\uff0c\u4e3b\u8981\u7684C++\u4ee3\u7801\u4f4d\u4e8e\u201capp\/src\/main\/cpp\u201d\u6587\u4ef6\u5939\u4e2d\u3002\u6253\u5f00”native-lib.cpp”\u6587\u4ef6\uff0c\u5f00\u59cb\u7f16\u5199C++\u4ee3\u7801\uff0c\u4f8b\u5982\uff1a<\/p>\n
“`cpp<\/p>\n
#include <\/p>\n
#include <\/p>\n
extern “C” JNIEXPORT jstring JNICALL<\/p>\n
Java_com_example_androidcpp_MainActivity_stringFromJNI(JNIEnv *env, jobject \/* this *\/) {<\/p>\n
std::string hello = “Hello from C++”;<\/p>\n
return env->NewStringUTF(hello.c_str());<\/p>\n
}<\/p>\n
“`<\/p>\n
5. \u7f16\u5199Java\u4ee3\u7801<\/p>\n
\u6b64\u65f6\u9700\u8981\u4f7f\u7528Java\u8bed\u8a00\u4e0eC++\u4ee3\u7801\u8fdb\u884c\u4ea4\u4e92\u3002\u6253\u5f00”MainActivity.java”\u6587\u4ef6\uff0c\u627e\u5230\u5b9a\u4e49Native\u65b9\u6cd5\u7684\u90e8\u5206\uff0c\u5982\uff1a<\/p>\n
“`java<\/p>\n
public native String stringFromJNI();<\/p>\n
“`<\/p>\n
\u5728Java\u4ee3\u7801\u4e2d\u8c03\u7528C++\u7f16\u5199\u7684\u65b9\u6cd5\uff0c\u4f8b\u5982\u5728onCreate\u65b9\u6cd5\u4e2d\u4f7f\u7528stringFromJNI\u83b7\u5f97C++\u4f20\u9012\u8fc7\u6765\u7684\u5b57\u7b26\u4e32\u5e76\u663e\u793a\uff1a<\/p>\n
“`java<\/p>\n
TextView textView = findViewById(R.id.textView);<\/p>\n
textView.setText(stringFromJNI());<\/p>\n
“`<\/p>\n
6. \u521b\u5efaCMakeLists.txt\u6587\u4ef6<\/p>\n
\u5728\u9879\u76ee\u6839\u76ee\u5f55\u4e0b\u521b\u5efa\u540d\u4e3a”CMakeLists.txt”\u7684\u6587\u4ef6\uff0c\u5728\u5176\u4e2d\u6dfb\u52a0\u5bf9C++\u6e90\u6587\u4ef6\u7684\u5f15\u7528\uff0c\u5982\uff1a<\/p>\n
“`<\/p>\n
cmake_minimum_required(VERSION 3.10.2)<\/p>\n
add_library(native-lib SHARED src\/main\/cpp\/native-lib.cpp)<\/p>\n
find_library(log-lib log)<\/p>\n
target_link_libraries(native-lib ${log-lib})<\/p>\n
“`<\/p>\n
7. \u7f16\u8bd1\u548c\u8fd0\u884c<\/p>\n
\u70b9\u51fbAndroid Studio\u5de5\u5177\u680f\u4e0a\u7684\u201cRun\u201d\u6309\u94ae\uff0c\u7f16\u8bd1\u548c\u8fd0\u884c\u9879\u76ee\uff0c\u5c06\u4f1a\u5728\u6a21\u62df\u5668\u6216\u8fde\u63a5\u7684Android\u8bbe\u5907\u4e0a\u770b\u5230\u5e94\u7528\u7a0b\u5e8f\u754c\u9762\uff0c\u663e\u793a\u201cHello from C++\u201d\u5b57\u6837\uff0c\u8bf4\u660e\u6210\u529f\u5b9e\u73b0\u4e86Android APP\u7684C++\u5f00\u53d1\u3002<\/p>\n
\u81f3\u6b64\uff0c\u6211\u4eec\u5df2\u7ecf\u638c\u63e1\u4e86\u4f7f\u7528C++\u8fdb\u884cAndroid\u5e94\u7528\u5f00\u53d1\u7684\u57fa\u672c\u77e5\u8bc6\u548c\u5b9e\u8df5\u64cd\u4f5c\u3002\u867d\u7136\u793a\u4f8b\u7b80\u5355\uff0c\u4f46\u5df2\u7ecf\u6784\u5efa\u4e86\u4e00\u4e2a\u5b8c\u6574\u7684Android\u5e94\u7528\u7a0b\u5e8f\u3002\u4f60\u53ef\u4ee5\u5728\u6b64\u57fa\u7840\u4e0a\u8fdb\u4e00\u6b65\u5b66\u4e60C++\u5728Android\u5f00\u53d1\u4e2d\u7684\u9ad8\u7ea7\u7528\u6cd5\uff0c\u4f8b\u5982\u52a0\u5feb\u56fe\u50cf\u5904\u7406\u3001\u6e38\u620f\u5f00\u53d1\u3001\u5b9e\u73b0\u672c\u5730\u52a0\u5bc6\u7b49\u9ad8\u6027\u80fd\u5e94\u7528\u573a\u666f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u4f7f\u7528C++\u5f00\u53d1Android\u5e94\u7528\u7a0b\u5e8f\u7684\u539f\u7406\u548c\u6b65\u9aa4\u3002\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u77e5\u9053\u5728Android\u5e73\u53f0\u4e0a\u4f7f\u7528C++\u7684\u539f\u56e0\u53ca\u5176\u4f18\u52bf\u3002C++\u662f\u4e00\u79cd\u901a\u7528\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u80fd\u591f\u5b9e\u73b0\u8de8\u5e73\u53f0\u5e94\u7528\uff0c\u5e76\u53ef\u4ee5\u8f7b<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[81,12250,14,12249,171],"class_list":{"0":"post-6665","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-zuoapp","7":"tag-81","8":"tag-app","9":"tag-14","11":"tag-171"},"_links":{"self":[{"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/posts\/6665","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/comments?post=6665"}],"version-history":[{"count":0,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/posts\/6665\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/media?parent=6665"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/categories?post=6665"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhidianwl.com\/zhidian\/wp-json\/wp\/v2\/tags?post=6665"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![](\"https:\/\/i.cdn.yimenapp.com\/2023-04\/06\/12\/15946437513.jpg\")
<\/figure>\n<\/p>\n