Publishing progress
suggest changeSometimes, we need to update the progress of the computation done by an AsyncTask
. This progress could be represented by a string, an integer, etc. To do this, we have to use two functions. First, we need to set the onProgressUpdate
function whose parameter type is the same as the second type parameter of our AsyncTask
.
class YourAsyncTask extends AsyncTask<URL, Integer, Long> {
@Override
protected void onProgressUpdate(Integer... args) {
setProgressPercent(args[0])
}
}
Second, we have to use the function publishProgress
necessarily on the doInBackground
function, and that is all, the previous method will do all the job.
protected Long doInBackground(URL... urls) {
int count = urls.length;
long totalSize = 0;
for (int i = 0; i < count; i++) {
totalSize += Downloader.downloadFile(urls[i]);
publishProgress((int) ((i / (float) count) * 100));
}
return totalSize;
}
Found a mistake? Have a question or improvement idea?
Let me know.
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