我有一个视频文件(.MP4格式),我想让用户能够将视频下载到他们的SD卡.我目前使用此代码,但它无法正常工作..
String PATHSdcard = "/sdcard/Video/";
public void DownloadFromUrl(String VideoURL,String fileName)
try { URL url = new URL("https://javmed-prod.s3.amazonaws.com/666034cbe81045f2a2da50e5205e376b.mp4");
File file = new File(fileName);
long sTime = System.currentTimeMillis();
URLConnection URLcon = url.openConnection();
InputStream is = URLcon.getInputStream();
BufferedInputStream bis = new BufferedInputStream(is);
ByteArrayBuffer baf = new ByteArrayBuffer(50);
int current = 0;
while ((current = bis.read()) != -1) {
baf.append((byte) current);
}
FileOutputStream fos = new FileOutputStream(PATHSdcard+file);
fos.write(baf.toByteArray());
fos.close();
} catch (IOException e) {
Log.d("ERROR.......",e+"");
}
谢谢你的帮助！
解决方法
试试这个解决方案
package com.Video.ALLTestProject;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Environment;
import android.util.Log;
public class VideoSaveSDCARD extends Activity{
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ProgressBack PB = new ProgressBack();
PB.execute("");
}
private class ProgressBack extends AsyncTask<String,String,String> {
ProgressDialog PD;
@Override
protected void onPreExecute() {
PD= ProgressDialog.show(LoginPage.this,null,"Please Wait ...",true);
PD.setCancelable(true);
}
@Override
protected void doInBackground(String... arg0) {
downloadFile("http://beta-vidizmo.com/hilton.mp4","Sample.mp4");
}
protected void onPostExecute(Boolean result) {
PD.dismiss();
}
}
private void downloadFile(String fileURL,String fileName) {
try {
String rootDir = Environment.getExternalStorageDirectory()
+ File.separator + "Video";
File rootFile = new File(rootDir);
rootFile.mkdir();
URL url = new URL(fileURL);
HttpURLConnection c = (HttpURLConnection) url.openConnection();
c.setRequestMethod("GET");
c.setDoOutput(true);
c.connect();
FileOutputStream f = new FileOutputStream(new File(rootFile,fileName));
InputStream in = c.getInputStream();
byte[] buffer = new byte[1024];
int len1 = 0;
while ((len1 = in.read(buffer)) > 0) {
f.write(buffer,len1);
}
f.close();
} catch (IOException e) {
Log.d("Error....",e.toString());
}
}
