private void saveImage(int index) {
String dest = AcApp.getPreferenceImageSaveDir();
String path = mList.get(index);
Uri uri = Uri.parse(path);
File saveFile;
if (uri.getScheme().equals("http")) {
// FIXME: volley 的缓存任务还没有被执行的时候是会获取不到数据的
byte[] diskCache = AcApp.getDataInDiskCache(path);
if (diskCache != null) {
saveFile = new File(dest + "/" + FileUtil.getHashName(path));
if (!FileUtil.save(diskCache, saveFile.getAbsolutePath())) {
saveFile = null;
}
} else {
File cache = FileUtil.generateImageCacheFile(path);
saveFile = FileUtil.copy(cache, dest);
}
} else {
File cache = new File(uri.getPath());
saveFile = FileUtil.copy(cache, dest);
}
if (saveFile != null && saveFile.exists()) {
MobclickAgent.onEvent(this, "save_pic");
Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.fromFile(saveFile));
sendBroadcast(intent);
AcApp.showToast(getString(R.string.save_success) + ":" + saveFile.getAbsolutePath());
} else AcApp.showToast(getString(R.string.save_failed));
}
@Override
protected String doInBackground(Uri... params) {
loading = true;
Uri uri = params[0];
if (uri == null || mUri.getHost() == null) return null;
File cache = FileUtil.generateImageCacheFile(uri.toString());
if (cache.exists() && cache.canRead()) {
return cache.getAbsolutePath();
} else {
cache.getParentFile().mkdirs();
}
File temp = new File(cache.getAbsolutePath() + ".tmp");
InputStream in = null;
OutputStream out = null;
try {
URL parsedUrl = new URL(uri.toString());
for (int i = 0; i < 3 && !isCancelled(); i++) {
HttpURLConnection connection =
Connectivity.openDefaultConnection(parsedUrl, 3000 + i * 1500, (3000 * (2 + i)));
if (temp.exists()) {
connection.addRequestProperty("Range", "bytes=" + temp.length() + "-");
out = new FileOutputStream(temp, true);
} else out = new FileOutputStream(temp);
try {
int responseCode = connection.getResponseCode();
if (responseCode == 200 || responseCode == 206) {
in = connection.getInputStream();
FileUtil.copyStream(in, out);
cache.delete();
if (!temp.renameTo(cache)) {
Log.w(TAG, "重命名失败" + temp.getName());
}
return cache.getAbsolutePath();
}
} catch (SocketTimeoutException e) {
Log.w(TAG, "retry", e);
}
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
IOUtils.close(in);
IOUtils.close(out);
}
return null;
}