public ImageCache(Context context) {
try {
_memoryCache =
new LruCache<String, Bitmap>(MEMORY_CACHE_SIZE) {
protected int sizeOf(String key, Bitmap value) {
return value.getRowBytes() * value.getHeight();
}
};
final File diskCacheDir = getDiskCacheDir(context, DISK_CACHE_SUBDIR);
_diskCache = DiskLruCache.open(diskCacheDir, APP_VERSION, VALUE_COUNT, DISK_CACHE_SIZE);
} catch (IOException e) {
e.printStackTrace();
}
}
public FavurlShowDiskCache(Context context) {
File cacheDir = CommonUtils.getDiskCacheDir(context, Constants.FAVURL_CACHE_DIR);
if (!cacheDir.exists()) {
cacheDir.mkdirs();
}
try {
diskCache =
DiskLruCache.open(
cacheDir, CommonUtils.getAppVersion(context), 1, Constants.BITMAP_CACHE_MAX_SIZE);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public CustomImageCache() {
int maxSize = (int) Runtime.getRuntime().maxMemory() / 8;
mMemoryCache =
new LruCache<String, Bitmap>(maxSize) {
@Override
protected int sizeOf(String key, Bitmap value) {
// 这个方法一定要重写，不然缓存没有效果
return value.getHeight() * value.getRowBytes();
}
};
try {
// 获取图片缓存路径
File cacheDir = FileUtils.getDiskCacheDir("thumb");
if (!cacheDir.exists()) {
cacheDir.mkdirs();
}
// 创建DiskLruCache实例，初始化缓存数据
mDiskLruCache =
DiskLruCache.open(cacheDir, CommonUtils.getAppVersion(), 1, DISK_CACHE_MAX_SIZE);
} catch (IOException e) {
e.printStackTrace();
}
}
private void initDiskCache(String path, boolean autoCreate, long maxSize) {
if (mDiskLruCache == null && !TextUtils.isEmpty(path)) {
File f = new File(path);
if (!f.exists() || !f.isDirectory()) {
boolean b = false;
if (autoCreate && f.mkdirs()) {
b = true;
}
if (!b) {
return;
}
}
if (maxSize <= 0) {
return;
}
try {
mDiskLruCache = DiskLruCache.open(f, 1, 1, maxSize);
} catch (IOException e) {
e.printStackTrace();
return;
}
}
}