{"id":10979,"date":"2021-10-28T22:07:03","date_gmt":"2021-10-28T14:07:03","guid":{"rendered":"https:\/\/www.bookcard.net\/wordpress\/?p=10979"},"modified":"2021-10-28T22:07:03","modified_gmt":"2021-10-28T14:07:03","slug":"android_studio_ndk_java_jni","status":"publish","type":"post","link":"https:\/\/www.bookcard.net\/wordpress\/android_studio_ndk_java_jni\/","title":{"rendered":"Android Studio NDK-Java\u539f\u751f\u63a5\u53e3(JNI)"},"content":{"rendered":"
\"Android<\/a>
Android Studio NDK-Java\u539f\u751f\u63a5\u53e3(JNI)<\/figcaption><\/figure>\n

Android Java\u539f\u751f\u63a5\u53e3(JNI) \u4ee4 \u300eJava\u300f \u540c\u300eC\\C++\u300f\u4ee3\u78bc\u76f8\u4e92\u8abf\u7528. \u4e4b\u524d\u4fc2\u300eMainActivity.java\u300f\u58f0\u660e\u300enative\u300f\u539f\u751f\u4ee3\u78bc\u63a5\u53e3.<\/p>\n\n\n\n
static public native String stringFromJNI();<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u300enative-lib.cpp\u300f\u300eC\\C++\u300f\u4ee3\u78bc, \u5b83\u7de8\u8b6f\u5171\u4eab\u5eab\u300e.so\u300f\u6a94<\/p>\n\n\n\n
extern “C” JNIEXPORT jstring JNICALL<\/p>\n

Java_net_bookcard_compass_MainActivity_stringFromJNI(JNIEnv* env,jobject\u00a0 this) {<\/p>\n

return env->NewStringUTF(\u201cnative-lib\u201d) ;<\/p>\n

}<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u7f3a\u9ede\u4fc2\u53ea\u80fd\u300eMainActivity.java\u300f\u8abf\u7528, \u66f4\u4f73\u65b9\u767c\u4fc2\u5c07\u539f\u751f\u4ee3\u78bc\u63a5\u53e3\u64fa\u4fc2\u55ae\u7368\u300eJava Class\u300f. \u5e76\u58f0\u660e\u70ba\u300estatic\u300f, \u53ef\u4fc2\u4efb\u610f\u4f4d\u7f6e\u8abf\u7528\u300eC\\C++\u300f\u4ee3\u78bc.<\/p>\n

    \n
  1. \u65b0\u5efa\u300eClass\u300f<\/li>\n<\/ol>\n\n\n\n
    \u300eFile\u300f->\u300eNew\u300f->\u300eJava Class\u300f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
      \n
    1. \u65b0\u300eJava Class\u300f\u586b\u300ejava\u300f<\/li>\n
    2. \u8f09\u5165\u5171\u4eab\u5eab”geomanticcompass.so”<\/li>\n<\/ol>\n\n\n\n
      static {<\/p>\n

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

      }<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        \n
      1. \u58f0\u660e\u300enative\u300f\u539f\u751f\u300estatic\u300f\u4ee3\u78bc\u63a5\u53e3.<\/li>\n<\/ol>\n\n\n\n
        static public native String stringFromJNI();<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

         <\/p>\n","protected":false},"excerpt":{"rendered":"

        Android Java\u539f\u751f\u63a5\u53e3(JNI) \u4ee4 \u300eJava\u300f \u540c\u300eC\\C++\u300f\u4ee3\u78bc\u76f8\u4e92\u8abf\u7528. \u4e4b\u524d\u4fc2\u300eMain … <\/p>\n

        \u7e7c\u7e8c\u95b1\u8b80 Android Studio NDK-Java\u539f\u751f\u63a5\u53e3(JNI)<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[2],"class_list":["post-10979","post","type-post","status-publish","format-standard","hentry","category-android","tag-android","entry"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/10979","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/comments?post=10979"}],"version-history":[{"count":1,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/10979\/revisions"}],"predecessor-version":[{"id":10981,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/10979\/revisions\/10981"}],"wp:attachment":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/media?parent=10979"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/categories?post=10979"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/tags?post=10979"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}