I use libzip to read APK content in native code.
assets/sounds/voice folder "disappeared" for libzip functions only.
libzip still see other files.
I still can see it in assets/sounds/voice in project folder.
I did clean many times.
I still can unzip APK file from bin folder and I see all required files. (including files from assets/sounds/voice folder)
I added small logging command and it does not print files from assets/sounds/voice folder. All other files are present.
int inum = zip_get_num_files(apkzip);
for(int i = 0; i < inum; i++){
const char * name = zip_get_name(apkzip, i, 0);
__android_log_print(ANDROID_LOG_INFO,"FILEZIP", "zip: %s", name);
}
I have no idea what at what step it is wrong. Had eclipse compressed ZPK with new format that my libzip does not able to read? or what could be a reason.
This is not an answer for libzip, but why you have to use libzip to read apk file in NDK application? In Android NDK, you can use AAsset APIs to get file from the apk. Take a look at "How To Get File In Assets From Android NDK".
EDITED
It is not available in android-5 that I still use
Ok. So how about Cocos2d-x's ZipFile? It is based on Minizip.
How to use ZipFile from cocos2dx/platform/android/CCFileUtilsAndroid.cpp
s_pZipFile = new ZipFile(resourcePath, "assets/");
pData = s_pZipFile->getFileData(fullPath.c_str(), pSize);
Related
I never make a android project and i don't know java. I am trying to port my c++ sdl opengl project to android. I am using android studio. I opened sdl sample android project and now i can manage project from main.cpp . How do i know this because I changed the color of the window and it worked. But when i try to load shader.text file with ifstream program crashed. I understand that this will not happen. After this i searched but I couldn't find a complete code or an example.
When i put files in assets folder and build apk. apk size grows as files. Therefore I need to kepth files in assets folder ?
I think i need to use asset manager but of course i don't know.
What files should I write what code? I mean what i need to add main.cpp and I need to add code java side also ?
main.cpp :
int main()
{
//lets say i have filePath like these
char file_vert[100];
snprintf(file_vert,100,"shaders/vertexShader.text");
char file_Texture[100];
snprintf(file_Texture,100,"textures/image.jpg");
//i am using them in cpp project
//shader text file like this
std::ifstream vShaderFile;
vShaderFile.open(file_vert);
//and i am loading texture file with "stbi" library
unsigned char *data = stbi_load(file_Texture, &width, &height, &nrComponents, 0);
}
Is it possible to get the config.xml file that is generated by Cordova based applications using Adroguard?
I cannot find it under the /res folder and it is not listed in the output of get_files() method.
apktool, on the other hand, is able to get the config.xml from the apk that is use it on.
Since it is under res folder, You need to get it by unzipping the file to a temporary directory and then parse it using Axml parser. In get_files(), you must see "resources.arsc" file. The res files are part of that. You can do something like :
config_xml_path = os.path.join(<your apk unzipped path>, 'res', 'xml', 'config.xml')
with io.open(config_xml_path, 'rb') as axml_file:
parsed_axml_file = AXMLPrinter(axml_file.read())
axml_content = parsed_axml_file.get_buff().decode('utf-8)
parsed_axml = minidom.parseString(axml_content.encode('utf-8'))
You might get some errors if the config.xml is badly formatted but I am not including the solution to handle those case. I hope you will get an idea with the above example.
Issue
I wonder how to make file hierarchy of assets folder in Android from native code. I'm using AAssetManager_openDir but AAssetDir_getNextFileName doesn't return any directory names so basically I have no way to dive deeper into hierarchy because I can't obtain names of subfolders. Is there any way to resolve this issue with AAssetManager or should I implement this in Java?
Example
Assets looks like
a/
file1
file2
b/
file3
c/
file4
C++ code
AAssetDir* assetDir = AAssetManager_openDir(env, "");
// filename is NULL since there is only folders at the root folder
const char* filename = AAssetDir_getNextFileName(assetDir);
AAssetDir_close(assetDir);
AAssetDir* assetDir = AAssetManager_openDir(env, "a");
// filename is "file1"
const char* filename = AAssetDir_getNextFileName(assetDir);
// filename is "file2"
filename = AAssetDir_getNextFileName(assetDir);
AAssetDir_close(assetDir);
EDIT:
I found out that AAssetDir_getNextFileName implementation literally filters directories from output.
Link to source code
You can achieve your goal in three steps, each requires some programming. The bottom line is, your assets all live in the APK file, and your app can find and read the APK file, and its format is a ZIP archive.
Find your APK file name.
Open this file for read as zip archive.
Iterate the zip contents for assets/<whatever>.
For 1), you can use Java or if you must stay in c++, filter /proc/self/fd. You may find some system APK files (framework), but your APK will be the only one that is not system.
For 2), see use zlib to list directory structure of apk file in android. Note that zlib is part of public NDK libraries.
I need to have some files in android assets folder, how can I add them using QtCreator/QMake?
Assuming you have the following structure in your source directory:
foo.pro
extra_data/file1
extra_data/file2
…
Adding the following to foo.pro should deploy the extra_data folder to assets://extra_data (exact path might differ, cannot verify right now) in the APK:
folder_01.source = extra_data
folder_01.target = extra_data
DEPLOYMENTFOLDERS += folder_01
If you are developing the application, then simply copy/paste the files in assets folder.
But if your application is already built and available as .apk file then you cannot modify any of its content.
Copying files to /5.2.0/android_armv7/src/android/java/assets did the trick
I am current working on an Android project.
Since the android apk file is essentially a zip file with a different file extension, is it possible to use zlib to file the directory structure of the asset folder?
The goal is to write some interfaces like opendir() and readdir() so that I can do something like:
DIR* dir = zip_opendir("somedirectory");
struct dirent* entry;
while (0 != (entry = zip_readdir(dir))){
__android_log_print(ANDROID_LOG_ERROR, "DIR", "entry: %s\n", entry->d_name);
}
except that all the operations take place inside a zip file.
You can use libzip (which itself uses zlib) to work with zip files. It does all you want and more.