@Override
public byte[] downloadBitmap(String url, ImageConfig config) throws Exception {
try {
DownloadProcess progress = config.getProgress();
if (progress != null) progress.sendPrepareDownload(url);
ByteArrayOutputStream out = new ByteArrayOutputStream();
// 加载assets目录
InputStream in = GlobalContext.getInstance().getAssets().open(url);
if (progress != null) progress.receiveLength(in.available());
if (in == null) return null;
// 获取图片数据
byte[] buffer = new byte[1024 * 128];
int readLen = -1;
int readBytes = 0;
while ((readLen = in.read(buffer)) != -1) {
readBytes += readLen;
if (progress != null) progress.sendProgress(readBytes);
out.write(buffer, 0, readLen);
}
byte[] bs = out.toByteArray();
in.close();
out.close();
return bs;
} catch (Exception e) {
if (config.getProgress() != null) config.getProgress().sendException(e);
throw new Exception(e.getCause());
}
};
@Override
public byte[] downloadBitmap(String url, ImageConfig config) throws Exception {
try {
File imgFile = new File(url);
if (imgFile.exists()) {
DownloadProcess process = config.getProgress();
if (process != null) process.prepareDownload(url);
// 如果图片需要压缩，直接解析成bitmap
if (config.getMaxHeight() > 0 || config.getMaxWidth() > 0) {
Bitmap bitmap =
BitmapDecoder.decodeSampledBitmapFromFile(
imgFile.getAbsolutePath(), config.getMaxWidth(), config.getMaxHeight());
ByteArrayOutputStream out = new ByteArrayOutputStream();
boolean isPng = url.toLowerCase().endsWith("png") ? true : false;
bitmap.compress(isPng ? Bitmap.CompressFormat.PNG : Bitmap.CompressFormat.JPEG, 100, out);
byte[] result = out.toByteArray();
out.close();
if (process != null) {
process.sendLength(result.length);
process.sendProgress(result.length);
process.sendFinishedDownload(result);
}
Logger.w("直接解析sd卡图片，压缩尺寸");
return result;
} else {
InputStream in = new FileInputStream(new File(url));
if (process != null) process.sendLength(in.available());
ByteArrayOutputStream out = new ByteArrayOutputStream();
byte[] buffer = new byte[8 * 1024];
int length = -1;
long readBytes = 0;
while ((length = in.read(buffer)) != -1) {
readBytes += length;
if (process != null) process.sendProgress(readBytes);
out.write(buffer, 0, length);
}
out.flush();
byte[] result = out.toByteArray();
in.close();
out.close();
if (process != null) process.sendFinishedDownload(result);
return result;
}
}
if (config.getProgress() != null) config.getProgress().downloadFailed(null);
throw new Exception("");
} catch (Exception e) {
if (config.getProgress() != null) config.getProgress().sendException(e);
throw new Exception(e.getCause());
}
}
