问题：cocos2d-x3.10 打包安卓 运行build_native.py出错

java.lang.UnsatisfiedLinkError: Couldn't load cocos2djs from loader dalvik.system.Path

解决方案：替换proj.Android下面 build_native.py

#!/usr/bin/python ''' build_native.py This script will copy resources to assets and build native code with NDK. ''' import sys import os,os.path import shutil from optparse import OptionParser def get_num_of_cpu(): ''' The build process can be accelerated by running multiple concurrent job processes using the -j-option. ''' try: platform = sys.platform if platform == 'win32': if 'NUMBER_OF_PROCESSORS' in os.environ: return int(os.environ['NUMBER_OF_PROCESSORS']) else: return 1 else: from numpy.distutils import cpuinfo return cpuinfo.cpu._getNcpus() except Exception: print "Can't know cpuinfo,use default 1 cpu" return 1 def check_environment_variables(): ''' Checking the environment NDK_ROOT,which will be used for building ''' try: NDK_ROOT = os.environ['NDK_ROOT'] except Exception: print "NDK_ROOT not defined. Please define NDK_ROOT in your environment" sys.exit(1) return NDK_ROOT def select_toolchain_version(ndk_root): ret_version = "4.8" version_file_path = os.path.join(ndk_root,"RELEASE.TXT") try: versionFile = open(version_file_path) lines = versionFile.readlines() versionFile.close() version_num = None version_char = None pattern = r'^[a-zA-Z]+(\d+)(\w)' for line in lines: str_line = line.lstrip() match = re.match(pattern,str_line) if match: version_num = int(match.group(1)) version_char = match.group(2) break if version_num is None: print("Parse NDK version from file %s Failed." % version_file_path) else: version_char = version_char.lower() if version_num > 10 or (version_num == 10 and cmp(version_char,'c') >= 0): ret_version = "4.9" except: print("Parse NDK version from file %s Failed." % version_file_path) print("NDK_TOOLCHAIN_VERSION: %s" % ret_version) if ret_version == "4.8": print( "Your application may crash when using c++ 11 regular expression with NDK_TOOLCHAIN_VERSION %s" % ret_version) return ret_version def do_build(cocos_root,ndk_root,app_android_root,ndk_build_param,sdk_root,build_mode): ndk_path = os.path.join(ndk_root,"ndk-build") ndk_toolchain_version = select_toolchain_version(ndk_root) # windows should use ";" to seperate module paths platform = sys.platform if platform == 'win32': ndk_module_path = 'NDK_MODULE_PATH=%s/..;%s;%s/external;%s/cocos NDK_TOOLCHAIN_VERSION=%s' % (cocos_root,cocos_root,ndk_toolchain_version) else: ndk_module_path = 'NDK_MODULE_PATH=%s/..:%s:%s/external:%s/cocos NDK_TOOLCHAIN_VERSION=%s' % (cocos_root,ndk_toolchain_version) num_of_cpu = get_num_of_cpu() if ndk_build_param == None: command = '%s -j%d -C %s NDK_DEBUG=%d %s' % (ndk_path,num_of_cpu,build_mode=='debug',ndk_module_path) else: command = '%s -j%d -C %s NDK_DEBUG=%d %s %s' % (ndk_path,ndk_module_path) print command if os.system(command) != 0: raise Exception("Build dynamic library for project [ " + app_android_root + " ] fails!") def copy_files(src,dst): for item in os.listdir(src): path = os.path.join(src,item) # Android can not package the file that ends with ".gz" if not item.startswith('.') and not item.endswith('.gz') and os.path.isfile(path): shutil.copy(path,dst) if os.path.isdir(path): new_dst = os.path.join(dst,item) os.mkdir(new_dst) copy_files(path,new_dst) def copy_resources(app_android_root): # remove app_android_root/assets if it exists assets_dir = os.path.join(app_android_root,"assets") if os.path.isdir(assets_dir): shutil.rmtree(assets_dir) # copy resources os.mkdir(assets_dir) assets_res_dir = assets_dir + "/res"; assets_scripts_dir = assets_dir + "/src"; assets_jsb_dir = assets_dir + "/script"; os.mkdir(assets_res_dir); os.mkdir(assets_scripts_dir); os.mkdir(assets_jsb_dir); shutil.copy(os.path.join(app_android_root,"../../../main.js"),assets_dir) shutil.copy(os.path.join(app_android_root,"../../../project.json"),assets_dir) resources_dir = os.path.join(app_android_root,"../../../res") copy_files(resources_dir,assets_res_dir) resources_dir = os.path.join(app_android_root,"../../../src") copy_files(resources_dir,assets_scripts_dir) resources_dir = os.path.join(app_android_root,"../../../frameworks/cocos2d-x/cocos/scripting/js-bindings/script") copy_files(resources_dir,assets_jsb_dir) def build(targets,build_mode): ndk_root = check_environment_variables() sdk_root = None project_root = os.path.dirname(os.path.realpath(__file__)) cocos_root = os.path.join(project_root,"..","frameworks/cocos2d-x") print cocos_root if build_mode is None: build_mode = 'debug' elif build_mode != 'release': build_mode = 'debug' copy_resources(project_root) do_build(cocos_root,project_root,build_mode) # -------------- main -------------- if __name__ == '__main__': parser = OptionParser() parser.add_option("-n","--ndk",dest="ndk_build_param",help='Parameter for ndk-build') parser.add_option("-b","--build",dest="build_mode",help='The build mode for NDK project,debug or release') (opts,args) = parser.parse_args() try: build(args,opts.ndk_build_param,opts.build_mode) except Exception as e: print e sys.exit(1)