issues in writing files to sd card in android api 23(marshmallow)

Question

i am getting error when i try to download this file in Api 23.it works well in version<23.I have seen similar questions like this,but none of the solution worked for me.

Answer 1

Please check below solution, hope it will work properly for you.

 public void startDownload(View v) 
 {
    int result = ContextCompat.checkSelfPermission(context, Manifest.permission.WRITE_EXTERNAL_STORAGE);
   if (result == PackageManager.PERMISSION_GRANTED){

       startDownloading();

   } else {

       requestForLocationPermission(); 
   }
 }


   private void requestForLocationPermission()
   {

      if (ActivityCompat.shouldShowRequestPermissionRationale(activity,Manifest.permission.WRITE_EXTERNAL_STORAGE))
      {
      } 
      else {

          ActivityCompat.requestPermissions(activity,new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},PERMISSION_REQUEST_CODE);
      }
   }

  @Override
  public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) 
  {
      switch (requestCode) {
       case PERMISSION_REQUEST_CODE:
           if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) 
        { 
           startDownloading();
        } 
        break;
  }
}


  public void startDownloading()
  {
      Uri uri=Uri.parse("http://oursite/pictures/image.jpg");


      Environment
  .getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS)
  .mkdirs();

      lastDownload = mgr.enqueue(new DownloadManager.Request(uri)
              .setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI |
                                      DownloadManager.Request.NETWORK_MOBILE)
              .setAllowedOverRoaming(false)
              .setTitle("Pictures")
              //.setDescription("Something useful. No, really.")
              .setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS,
                                                 "aadhar.jpg"));

      v.setEnabled(false);
      //findViewById(R.id.query).setEnabled(true);
    }