public Bitmap getCache(Context context) {
if (cache == null || cache.isRecycled()) {
File bmp_catch = StorageUtils.getIndividualCacheDirectory(context, "bmp_catch");
try {
File file = new File(bmp_catch, uriOrigin.toString().hashCode() + "");
if (!file.exists()) return null;
FileInputStream fileInputStream = new FileInputStream(file);
cache = BitmapFactory.decodeStream(fileInputStream);
return cache;
} catch (IOException e) {
e.printStackTrace();
}
}
return cache;
}
public void setCache(Bitmap cache, Context context, boolean fileCache) {
this.cache = Bitmap.createBitmap(cache);
if (!fileCache) return;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
cache.compress(Bitmap.CompressFormat.PNG, 0, baos); // 压缩位图
byte[] cacheBytes = baos.toByteArray(); // 创建分配字节数组
File bmp_catch = StorageUtils.getIndividualCacheDirectory(context, "bmp_catch");
try {
File file = new File(bmp_catch, uriOrigin.toString().hashCode() + "");
FileOutputStream fileOutputStream = new FileOutputStream(file);
fileOutputStream.write(cacheBytes);
fileOutputStream.flush();
fileOutputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
/** Creates default implementation of {@link DiskCache} depends on incoming parameters */
public static DiskCache createDiskCache(
Context context,
FileNameGenerator diskCacheFileNameGenerator,
long diskCacheSize,
int diskCacheFileCount) {
File reserveCacheDir = createReserveDiskCacheDir(context);
if (diskCacheSize > 0 || diskCacheFileCount > 0) {
File individualCacheDir = StorageUtils.getIndividualCacheDirectory(context);
LruDiscCache diskCache =
new LruDiscCache(
individualCacheDir, diskCacheFileNameGenerator, diskCacheSize, diskCacheFileCount);
diskCache.setReserveCacheDir(reserveCacheDir);
return diskCache;
} else {
File cacheDir = StorageUtils.getCacheDirectory(context);
return new UnlimitedDiscCache(cacheDir, reserveCacheDir, diskCacheFileNameGenerator);
}
}
/**
* Creates default implementation of {@link
* com.nostra13.universalimageloader.cache.disc.DiskCache} depends on incoming parameters
*/
public static DiskCache createDiskCache(
Context context,
FileNameGenerator diskCacheFileNameGenerator,
long diskCacheSize,
int diskCacheFileCount) {
File reserveCacheDir = createReserveDiskCacheDir(context);
if (diskCacheSize > 0 || diskCacheFileCount > 0) {
File individualCacheDir = StorageUtils.getIndividualCacheDirectory(context);
try {
return new LruDiskCache(
individualCacheDir,
reserveCacheDir,
diskCacheFileNameGenerator,
diskCacheSize,
diskCacheFileCount);
} catch (IOException e) {
L.e(e);
// continue and create unlimited cache
}
}
File cacheDir = StorageUtils.getCacheDirectory(context);
return new UnlimitedDiskCache(cacheDir, reserveCacheDir, diskCacheFileNameGenerator);
}
