/**
* Get a usable cache directory (external if available, internal otherwise). . Check if media is
* mounted or storage is built-in, if so, try and use external cache folder otherwise use internal
* cache folder . If both of them can not meet the requirement, use the bigger one.
*
* @param context The context to use
* @param uniqueName A unique folder name to append to the cache folder
* @return The cache folder
*/
public static CacheDirInfo getDiskCacheDir(
Context context, String uniqueName, long requireSpace) {
File sdPath = null;
File internalPath = null;
Long sdCardFree = 0L;
boolean usingInternal = false;
if (hasSDCardMounted()) {
sdPath = getExternalCacheDir(context);
if (!sdPath.exists()) {
sdPath.mkdirs();
}
sdCardFree = getUsableSpace(sdPath);
}
CacheDirInfo cacheDirInfo = new CacheDirInfo();
cacheDirInfo.requireSize = requireSpace;
// sd card can not meet the requirement
// try to use the build-in storage
if (sdPath == null || sdCardFree < requireSpace) {
internalPath = context.getCacheDir();
long internalFree = getUsableSpace(internalPath);
// both lower then requirement, choose the bigger one
if (internalFree < requireSpace) {
if (internalFree > sdCardFree) {
usingInternal = true;
cacheDirInfo.realSize = internalFree;
} else {
usingInternal = false;
cacheDirInfo.realSize = sdCardFree;
}
cacheDirInfo.isNotEnough = true;
} else {
usingInternal = true;
cacheDirInfo.realSize = requireSpace;
}
} else {
usingInternal = false;
cacheDirInfo.realSize = requireSpace;
}
cacheDirInfo.isInternal = usingInternal;
if (usingInternal) {
cacheDirInfo.path = new File(internalPath.getPath() + File.separator + uniqueName);
} else {
cacheDirInfo.path = new File(sdPath.getPath() + File.separator + uniqueName);
}
if (!cacheDirInfo.path.exists() && !cacheDirInfo.path.mkdirs()) {
CLog.e("cube-cache", "can not create directory for: %s", cacheDirInfo.path);
}
return cacheDirInfo;
}
public void setHandler(IScrollHeaderFrameHandler handler) {
mIScrollHeaderFrameHandler = handler;
CLog.d(LOG_TAG, "setHandler: %s", this);
}