標籤:c++11 ndk android
C++11在Android NDK中已經支援了,本文主要介紹如何在NDK中添加C++11標準的支援。
在開源項目Cocos2d-x中,已經添加了C++11標準的支援。
1.修改Application.mk檔案,添加NDK_TOOLCHAIN_VERSION
NDK_TOOLCHAIN_VERSION=4.8
2.添加APP_CPPFLAGS,在命令列編輯時支援C++11
APP_CPPFLAGS := -frtti -std=c++11
然後編寫測試函數,在JNI中調用此函數即可。
#include <android/log.h>#include <vector>#include <initializer_list>using namespace::std;#define LOG_TAG "cachetest"#define LOGI(...) __android_log_print(ANDROID_LOG_INFO,LOG_TAG,__VA_ARGS__)template <typename T>class MyArray{private: vector<T> m_Array; public: MyArray() { } MyArray(const initializer_list<T>& il) { // Manually populate the elements of the array from initializer_list x for (auto x: il){ // use range-based for statement to iterate over the elements of the initializer list m_Array.push_back(x); // push them into the array manually}}void showContent(){//old wayLOGI("in old way");for (std::vector<int>::iterator itr = m_Array.begin(); itr != m_Array.end(); ++itr){LOGI("%d",(*itr));}LOGI("in c++11 new way");for (auto x: m_Array){ //x is readonlyLOGI("%d",x);}}};void test_cpp_new_version_11(){auto x = 1;//int x = 1;int *p = nullptr;//int *p = NULL;MyArray<int> foo = { 3, 4, 6, 9 };foo.showContent();}
具體視頻教程,可以參考海同網校視頻課程<安卓NDK>開發。
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Android NDK的C++11標準支援