私はすべてのビデオをダウンロードしてsdcardに保存したい.私はすべてのファイルにarraylistを持っています.単一のファイルではありません.どのようにそれを可能にするか.助けてください.
ArrayList<Url_Dto> list = new ArrayList<Url_Dto>();
前もって感謝します！！！
DownloadFileFromURL（）のパスパラメータとは何ですか。私はボタンクリックイベントを使用しました。
mainDownloadBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
//what is pass param
new DownloadFileFromURL().execute();
}
});
以下のクラスをダウンロードできます::
class DownloadFileFromURL extends AsyncTask<Object, String, String> {
int count = 0;
ProgressDialog dialog;
ProgressBar progressBar;
int myProgress;
/**
* Before starting background thread Show Progress Bar Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
ProgressBar progressBar;
}
/**
* Downloading file in background thread
* */
@Override
protected String doInBackground(Object... params) {
Log.v("log_tag", "params :::; " + params);
int count;
progressBar = (ProgressBar) params[0];
try {
// URL url = new URL(f_url[0]);
URL url = new URL((String) params[1]);
Log.v("log_tag", "name ::: " + url);
name = ((String) params[1]).substring(((String) params[1])
.lastIndexOf("/") + 1);
Log.v("log_tag", "name Substring ::: " + name);
URLConnection conection = url.openConnection();
conection.connect();
// getting file length
int lenghtOfFile = conection.getContentLength();
// input stream to read file - with 8k buffer
InputStream input = new BufferedInputStream(url.openStream(),
8192);
download = new File(Environment.getExternalStorageDirectory()
+ "/download/");
if (!download.exists()) {
download.mkdir();
}
String strDownloaDuRL = download + "/" + name;
Log.v("log_tag", " down url " + strDownloaDuRL);
FileOutputStream output = new FileOutputStream(strDownloaDuRL);
byte data[] = new byte[1024];
long total = 0;
while ((count = input.read(data)) != -1) {
total += count;
// publishing the progress....
// After this onProgressUpdate will be called
// publishProgress("" + (int) ((total * 100) /
// lenghtOfFile));
// writing data to file
progressBar
.setProgress((int) ((total * 100) / lenghtOfFile));
output.write(data, 0, count);
}
// flushing output
output.flush();
// closing streams
output.close();
input.close();
} catch (Exception e) {
Log.e("Error: ", e.getMessage());
}
return null;
}
/**
* Updating progress bar
* */
protected void onProgressUpdate(String... values) {
super.onProgressUpdate(values);
Log.v("log_tag", "progress :: " + values);
// setting progress percentage
// pDialog.setProgress(Integer.parseInt(progress[0]));
}
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
Log.v("log", "login ::: 4::: " + download);
String videoPath = download + "/" + name;
String chpName = name;
Log.v("log_tag", "chpName ::::" + chpName + " videoPath "
+ videoPath);
db.execSQL("insert into videoStatus (chapterNo,videoPath) values(\""
+ chpName + "\",\"" + videoPath + "\" )");
}
}