Cocos2d-x Study Notes (eight) encoding conversion using NDK's own iconv

Cocos2d-x Display Chinese garbled the most commonly used solution is to read XML files, using the Iconv library. Because in the use of Iconv library there are a lot of problems, here to make a summary, to Yimeimei less go some detours.

I use the Cocos2d-x 3.4 version, I also refer to the online tutorial, but there may be some details of the tutorial is not mentioned, here is detailed list.

1. Create a new ChineseString.h file on the cocos2d-x side

The code is as follows:

#ifndef  __ChineseString_H__#define __ChineseString_H__#if  (cc_target_platform == cc_ platform_android) #include   ". /.. /.. /software/android-ndk-r10e/sources/android/support/include/iconv.h "#endif #if  (CC_TARGET_PLATFORM == &NBSP;CC_PLATFORM_WIN32) #include   "External/win32-specific/icon/include/iconv.h" #endif #include < string> #pragma  comment (lib,  "Libiconv.lib") static char g_gbkconvutf8buf[5000] =  {0};class chinesestring{public:static const char* gbktoutf8 (Char *strChar) { Iconv_t  iconvh;iconvh = iconv_open ("Utf-8",  "gb2312"); if (iconvh == 0) { Return null;} Size_t strlength = strlen (Strchar);size_t outlength = strlength * 4; Size_t copylength = outlength;memset (g_gbkconvutf8buf, 0, 5000); char* outbuf  =  (char*) malloc (outlength); Char* pbuff = outbuf;memset (ouTbuf, 0, outlength);if  ( -1 == iconv (Iconvh, &strchar, &strlength,  &outbuf, &outlength))   {  iconv_close (ICONVH);  return  null;  }  memcpy (g_gbkconvutf8buf,pbuff,copylength);   free (PBuff);   Iconv_close (ICONVH);  return g_gbkconvutf8buf;}}; #endif

2. Android Terminal

Online there is a way to download Iconv library, I think that kind of method is very troublesome, and I followed the steps to try the next, no success, back to give up, and finally found a way, that is, the following to introduce the Iconv library with the NDK.

I'm using android-ndk-r10e, and I can see a iconv.h file, which is the path referenced in the cocos2d-x-side code above.

#if (Cc_target_platform = = cc_platform_android) #include ". /.. /.. /software/android-ndk-r10e/sources/android/support/include/iconv.h "#endif

This adjustment is based on the path that the NDK stores.

Then modify the Android.mk file in the Proj.android/jni directory

The main added

Local_static_libraries + = Android_support

$ (call Import-module, Android/support)

Add these two pieces of code to the appropriate place

650) this.width=650; "Src=" Http://s1.51cto.com/wyfs02/M01/87/3B/wKioL1fYqWqR0SYJAABY88e_luE261.png-wh_500x0-wm_3 -wmp_4-s_2332078002.png "title=" Qq20160914093522.png "alt=" Wkiol1fyqwqr0syjaaby88e_lue261.png-wh_50 "/>

By doing these steps, it is normal to pass.

Note the following points:

1, Android compilation encountered the following error

Invalid conversion from ' const char** ' to ' char** '

This is because when we define GBKToUTF8 this function, the parameters use the const char* Strchar, and then pass in the Iconv function when the NDK iconv.h defines size_t iconv (iconv_t, char**, size_t*, char**, size_t*); So it's OK to just remove the const.

2, the Internet has introduced the NDK R9 iconv.h Code has a problem, need to modify the following, we pay attention to the line, R10 is not the problem

Change #ifdef __cplus_plus//To #ifdef __cplusplus}//extern "C" #endif

Cocos2d-x Study Notes (eight) encoding conversion using NDK's own iconv