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Android: Support file saving to internal data storage

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This commit is contained in:
Ray 2020-03-05 18:12:41 +01:00
parent 966e8adcf9
commit fb2ed693e4
3 changed files with 24 additions and 10 deletions
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2
src/core.c
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@ -650,7 +650,7 @@ void InitWindow(int width, int height, const char *title)
CORE.Android.app->onAppCmd = AndroidCommandCallback;
CORE.Android.app->onInputEvent = AndroidInputCallback;
InitAssetManager(CORE.Android.app->activity->assetManager);
InitAssetManager(CORE.Android.app->activity->assetManager, CORE.Android.app->activity->internalDataPath);
TRACELOG(LOG_INFO, "Android app initialized successfully");

28
src/utils.c
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@ -65,6 +65,7 @@ static TraceLogCallback logCallback = NULL; // Log callback function
#if defined(PLATFORM_ANDROID)
static AAssetManager *assetManager = NULL; // Android assets manager pointer
static const char *internalDataPath = NULL; // Android internal data path
#endif
#if defined(PLATFORM_UWP)
@ -292,21 +293,34 @@ void SaveFileText(const char *fileName, char *text)
#if defined(PLATFORM_ANDROID)
// Initialize asset manager from android app
void InitAssetManager(AAssetManager *manager)
void InitAssetManager(AAssetManager *manager, const char *dataPath)
{
assetManager = manager;
internalDataPath = dataPath;
}
// Replacement for fopen
// Ref: https://developer.android.com/ndk/reference/group/asset
FILE *android_fopen(const char *fileName, const char *mode)
{
if (mode[0] == 'w') return NULL;
if (mode[0] == 'w') // TODO: Test!
{
// TODO: fopen() is mapped to android_fopen() that only grants read access
// to assets directory through AAssetManager but we want to also be able to
// write data when required using the standard stdio FILE access functions
// Ref: https://stackoverflow.com/questions/11294487/android-writing-saving-files-from-native-code-only
#undef fopen
return fopen(TextFormat("%s/%s", internalDataPath, fileName), mode);
#define fopen(name, mode) android_fopen(name, mode)
}
else
{
// NOTE: AAsset provides access to read-only asset
AAsset *asset = AAssetManager_open(assetManager, fileName, AASSET_MODE_UNKNOWN);
AAsset *asset = AAssetManager_open(assetManager, fileName, 0);
if (!asset) return NULL;
return funopen(asset, android_read, android_write, android_seek, android_close);
if (asset != NULL) return funopen(asset, android_read, android_write, android_seek, android_close);
else return NULL;
}
}
#endif // PLATFORM_ANDROID

4
src/utils.h
View File

@ -68,8 +68,8 @@ extern "C" { // Prevents name mangling of functions
// Module Functions Declaration
//----------------------------------------------------------------------------------
#if defined(PLATFORM_ANDROID)
void InitAssetManager(AAssetManager *manager); // Initialize asset manager from android app
FILE *android_fopen(const char *fileName, const char *mode); // Replacement for fopen()
void InitAssetManager(AAssetManager *manager, const char *dataPath); // Initialize asset manager from android app
FILE *android_fopen(const char *fileName, const char *mode); // Replacement for fopen() -> Read-only!
#endif
#if defined(PLATFORM_UWP)