public void setImageUrl(String url) {
if ((mUrl != null && mUrl.equals(url))) return;
Bitmap oldOne = mBitmap;
if (mDownloadTask != null) {
mDownloadTask.cancelDownload();
}
mUrl = url;
if (mUrl != null) {
mBitmap = mCache.get(mUrl);
if (mBitmap == null) {
mDownloadPercent = 0;
Log.d("zdw", "submiting task");
mDownloadTask = new ImageDownloadTask(mUrl);
mDownloadTask.setDownloadStatusListener(this);
DownloadManager.submitTask(mDownloadTask);
mBitmap = mDefaultBitmap;
}
} else {
mBitmap = mDefaultBitmap;
}
if (mBitmap != oldOne) updateView();
}
@Override
public void onDownloadFinished(DownloadTask task, boolean success) {
mDownloadTask = null;
Bitmap image = ((ImageDownloadTask) task).getDownloadedBitmap();
if (image != null) {
mDownloadPercent = 100;
mBitmap = createThumb(image);
mCache.put(mUrl, mBitmap);
image = null;
} else { // download failed, use default Bitmap
mDownloadPercent = 100;
mBitmap = mDefaultBitmap;
mCache.put(mUrl, mBitmap);
}
updateView();
}